encounter
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decomp-toolkit
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Smarter configuration updates 

- Avoid overwriting `symbols.txt` or `splits.txt` if the file was modified since it was read or if the file's contents didn't change.
- Remove `binrw` and `byteorder` dependencies, moving to `FromReader`/`ToWriter` traits.
- Migrate generic bounds to `where` clauses.
- Remove unused `build.rs` logic.
This commit is contained in:
Luke Street 2023-11-07 23:21:59 -05:00
parent c452b74666
commit ec4caf5000
29 changed files with 1817 additions and 1334 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
Cargo.lock generated
View File

@ -112,12 +112,6 @@ dependencies = [
"syn 1.0.109", "syn 1.0.109",
] ]
[[package]]
name = "array-init"
version = "2.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3d62b7694a562cdf5a74227903507c56ab2cc8bdd1f781ed5cb4cf9c9f810bfc"
[[package]] [[package]]
name = "atty" name = "atty"
version = "0.2.14" version = "0.2.14"
@ -171,30 +165,6 @@ dependencies = [
"serde", "serde",
] ]
[[package]]
name = "binrw"
version = "0.12.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9e8318fda24dc135cdd838f57a2b5ccb6e8f04ff6b6c65528c4bd9b5fcdc5cf6"
dependencies = [
"array-init",
"binrw_derive",
"bytemuck",
]
[[package]]
name = "binrw_derive"
version = "0.12.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "db0832bed83248115532dfb25af54fae1c83d67a2e4e3e2f591c13062e372e7e"
dependencies = [
"either",
"owo-colors",
"proc-macro2",
"quote",
"syn 1.0.109",
]
[[package]] [[package]]
name = "bitflags" name = "bitflags"
version = "1.3.2" version = "1.3.2"
@ -216,12 +186,6 @@ dependencies = [
"generic-array", "generic-array",
] ]
[[package]]
name = "bytemuck"
version = "1.14.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "374d28ec25809ee0e23827c2ab573d729e293f281dfe393500e7ad618baa61c6"
[[package]] [[package]]
name = "byteorder" name = "byteorder"
version = "1.5.0" version = "1.5.0"
@ -330,15 +294,13 @@ dependencies = [
[[package]] [[package]]
name = "decomp-toolkit" name = "decomp-toolkit"
version = "0.5.7" version = "0.5.8"
dependencies = [ dependencies = [
"anyhow", "anyhow",
"ar", "ar",
"argp", "argp",
"base16ct", "base16ct",
"base64", "base64",
"binrw",
"byteorder",
"cwdemangle", "cwdemangle",
"dol", "dol",
"enable-ansi-support", "enable-ansi-support",
@ -364,7 +326,6 @@ dependencies = [
"ppc750cl", "ppc750cl",
"rayon", "rayon",
"regex", "regex",
"rmp-serde",
"rustc-hash", "rustc-hash",
"serde", "serde",
"serde_json", "serde_json",
@ -376,6 +337,7 @@ dependencies = [
"tracing", "tracing",
"tracing-attributes", "tracing-attributes",
"tracing-subscriber", "tracing-subscriber",
"xxhash-rust",
] ]
[[package]] [[package]]
@ -745,12 +707,6 @@ dependencies = [
"supports-color 1.3.1", "supports-color 1.3.1",
] ]
[[package]]
name = "paste"
version = "1.0.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
[[package]] [[package]]
name = "path-slash" name = "path-slash"
version = "0.2.1" version = "0.2.1"
@ -896,28 +852,6 @@ version = "0.7.5"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dbb5fb1acd8a1a18b3dd5be62d25485eb770e05afb408a9627d14d451bae12da" checksum = "dbb5fb1acd8a1a18b3dd5be62d25485eb770e05afb408a9627d14d451bae12da"
[[package]]
name = "rmp"
version = "0.8.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "44519172358fd6d58656c86ab8e7fbc9e1490c3e8f14d35ed78ca0dd07403c9f"
dependencies = [
"byteorder",
"num-traits",
"paste",
]
[[package]]
name = "rmp-serde"
version = "1.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bffea85eea980d8a74453e5d02a8d93028f3c34725de143085a844ebe953258a"
dependencies = [
"byteorder",
"rmp",
"serde",
]
[[package]] [[package]]
name = "rustc-demangle" name = "rustc-demangle"
version = "0.1.23" version = "0.1.23"
@ -1389,3 +1323,9 @@ name = "windows_x86_64_msvc"
version = "0.48.5" version = "0.48.5"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538" checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
[[package]]
name = "xxhash-rust"
version = "0.8.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9828b178da53440fa9c766a3d2f73f7cf5d0ac1fe3980c1e5018d899fd19e07b"

18
Cargo.toml
View File

@ -3,10 +3,9 @@ name = "decomp-toolkit"
description = "Yet another GameCube/Wii decompilation toolkit." description = "Yet another GameCube/Wii decompilation toolkit."
authors = ["Luke Street <luke@street.dev>"] authors = ["Luke Street <luke@street.dev>"]
license = "MIT OR Apache-2.0" license = "MIT OR Apache-2.0"
version = "0.5.7" version = "0.5.8"
edition = "2021" edition = "2021"
publish = false publish = false
build = "build.rs"
repository = "https://github.com/encounter/decomp-toolkit" repository = "https://github.com/encounter/decomp-toolkit"
readme = "README.md" readme = "README.md"
categories = ["command-line-utilities"] categories = ["command-line-utilities"]
@ -27,8 +26,6 @@ ar = { git = "https://github.com/bjorn3/rust-ar.git", branch = "write_symbol_tab
argp = "0.3.0" argp = "0.3.0"
base16ct = "0.2.0" base16ct = "0.2.0"
base64 = "0.21.4" base64 = "0.21.4"
binrw = "0.12.0"
byteorder = "1.5.0"
cwdemangle = "0.1.6" cwdemangle = "0.1.6"
dol = { git = "https://github.com/encounter/ppc750cl", rev = "4a2bbbc6f84dcb76255ab6f3595a8d4a0ce96618" } dol = { git = "https://github.com/encounter/ppc750cl", rev = "4a2bbbc6f84dcb76255ab6f3595a8d4a0ce96618" }
enable-ansi-support = "0.2.1" enable-ansi-support = "0.2.1"
@ -50,7 +47,7 @@ object = { version = "0.32.1", features = ["read_core", "std", "elf", "write_std
once_cell = "1.18.0" once_cell = "1.18.0"
owo-colors = { version = "3.5.0", features = ["supports-colors"] } owo-colors = { version = "3.5.0", features = ["supports-colors"] }
path-slash = "0.2.1" path-slash = "0.2.1"
petgraph = "0.6.4" petgraph = { version = "0.6.4", default-features = false }
ppc750cl = { git = "https://github.com/encounter/ppc750cl", rev = "4a2bbbc6f84dcb76255ab6f3595a8d4a0ce96618" } ppc750cl = { git = "https://github.com/encounter/ppc750cl", rev = "4a2bbbc6f84dcb76255ab6f3595a8d4a0ce96618" }
rayon = "1.8.0" rayon = "1.8.0"
regex = "1.9.6" regex = "1.9.6"
@ -65,13 +62,4 @@ supports-color = "2.1.0"
tracing = "0.1.37" tracing = "0.1.37"
tracing-attributes = "0.1.26" tracing-attributes = "0.1.26"
tracing-subscriber = { version = "0.3.17", features = ["env-filter"] } tracing-subscriber = { version = "0.3.17", features = ["env-filter"] }
xxhash-rust = { version = "0.8.7", features = ["xxh3"] }
[build-dependencies]
anyhow = { version = "1.0.75", features = ["backtrace"] }
base64 = "0.21.4"
flagset = { version = "0.4.4", features = ["serde"] }
serde = "1.0.188"
serde_repr = "0.1.16"
serde_yaml = "0.9.25"
rmp-serde = "1.1.2"
flate2 = "1.0.27"

470
build.rs
View File

@ -1,467 +1,9 @@
use std::{collections::HashMap, env, fs, path::PathBuf}; fn main() {
let output = std::process::Command::new("git")
use anyhow::{anyhow, bail, Context, Result}; .args(["rev-parse", "HEAD"])
use base64::{engine::general_purpose::STANDARD, Engine}; .output()
use flagset::{flags, FlagSet}; .expect("Failed to execute git");
use flate2::{write::GzEncoder, Compression}; let rev = String::from_utf8(output.stdout).expect("Failed to parse git output");
use serde::{Deserialize, Serialize};
use serde_repr::{Deserialize_repr, Serialize_repr};
flags! {
#[repr(u8)]
#[derive(Deserialize_repr, Serialize_repr)]
pub enum ObjSymbolFlags: u8 {
Global,
Local,
Weak,
Common,
Hidden,
}
}
#[derive(Debug, Copy, Clone, Default, Eq, PartialEq, Serialize, Deserialize)]
pub struct ObjSymbolFlagSet(pub FlagSet<ObjSymbolFlags>);
#[derive(Debug, Copy, Clone, Eq, PartialEq, Serialize, Deserialize)]
pub enum ObjSymbolKind {
Unknown,
Function,
Object,
Section,
}
#[derive(Debug, Copy, Clone, Eq, PartialEq, Serialize, Deserialize)]
pub enum ObjRelocKind {
Absolute,
PpcAddr16Hi,
PpcAddr16Ha,
PpcAddr16Lo,
PpcRel24,
PpcRel14,
PpcEmbSda21,
}
#[derive(Debug, Clone, Eq, PartialEq, Serialize, Deserialize)]
pub struct OutSymbol {
pub kind: ObjSymbolKind,
pub name: String,
pub size: u32,
pub flags: ObjSymbolFlagSet,
pub section: Option<String>,
}
#[derive(Debug, Clone, Eq, PartialEq, Serialize, Deserialize)]
pub struct OutReloc {
pub offset: u32,
pub kind: ObjRelocKind,
pub symbol: usize,
pub addend: i32,
}
#[derive(Debug, Clone, Eq, PartialEq, Serialize, Deserialize)]
pub struct FunctionSignature {
pub symbol: usize,
pub hash: String,
pub signature: String,
pub symbols: Vec<OutSymbol>,
pub relocations: Vec<OutReloc>,
}
#[derive(Debug, Copy, Clone, Eq, PartialEq, Deserialize_repr, Serialize_repr)]
#[repr(u8)]
pub enum SigSymbolKind {
Unknown = 0,
Function = 1,
Object = 2,
}
#[derive(Debug, Copy, Clone, Eq, PartialEq, Deserialize_repr, Serialize_repr)]
#[repr(u8)]
pub enum SigSection {
Init = 0,
Extab = 1,
Extabindex = 2,
Text = 3,
Ctors = 4,
Dtors = 5,
Rodata = 6,
Data = 7,
Bss = 8,
Sdata = 9,
Sbss = 10,
Sdata2 = 11,
Sbss2 = 12,
Dbgtext = 13,
Unknown = 255,
}
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
#[repr(u8)]
pub enum SigSymbolFlag {
Global = 1 << 0,
Local = 1 << 1,
Weak = 1 << 2,
Common = 1 << 3,
Hidden = 1 << 4,
}
#[derive(Debug, Clone, Eq, PartialEq, Serialize, Deserialize)]
pub struct SigSymbol {
pub kind: SigSymbolKind,
pub name: String,
pub size: u32,
pub flags: u8, // SigSymbolFlag
pub section: SigSection,
}
#[derive(Debug, Copy, Clone, Eq, PartialEq, Deserialize_repr, Serialize_repr)]
#[repr(u8)]
pub enum SigRelocKind {
Absolute = 0,
PpcAddr16Hi = 1,
PpcAddr16Ha = 2,
PpcAddr16Lo = 3,
PpcRel24 = 4,
PpcRel14 = 5,
PpcEmbSda21 = 6,
}
#[derive(Debug, Clone, Eq, PartialEq, Serialize, Deserialize)]
pub struct SigReloc {
pub offset: u32,
pub symbol: usize,
pub kind: SigRelocKind,
pub addend: i32,
}
#[derive(Debug, Clone, Eq, PartialEq, Serialize, Deserialize)]
pub struct Sig {
pub symbol: usize,
pub data: Vec<u8>,
pub relocations: Vec<SigReloc>,
pub search: bool,
}
#[derive(Debug, Clone, Eq, PartialEq, Serialize, Deserialize)]
pub struct Output {
pub symbols: Vec<SigSymbol>,
pub signatures: HashMap<String, Sig>,
}
pub fn parse_yml(sig_str: &str) -> Result<Vec<FunctionSignature>> {
Ok(serde_yaml::from_str(sig_str)?)
}
const SIGNATURES: &[(&str, bool)] = &[
("__start", false),
("__init_registers", false),
("__init_hardware", false),
("__init_data", false),
("__set_debug_bba", false),
("__OSPSInit", false),
("__OSFPRInit", false),
("__OSCacheInit", false),
("DMAErrorHandler", false),
("DBInit", false),
("OSInit", false),
("__OSThreadInit", false),
("__OSInitIPCBuffer", false),
("EXIInit", false),
("EXIGetID", false),
("exit", false),
("_ExitProcess", false),
("__fini_cpp", false),
("__fini_cpp_exceptions", false),
("__destroy_global_chain", false),
("__init_cpp", false),
("__init_cpp_exceptions", false),
("InitMetroTRK", false),
("InitMetroTRKCommTable", false),
("OSExceptionInit", false),
("OSDefaultExceptionHandler", false),
("__OSUnhandledException", false),
("OSDisableScheduler", false),
("__OSReschedule", false),
("__OSInitSystemCall", false),
("OSInitAlarm", false),
("__OSInitAlarm", false),
// TODO aliases
// ("__OSEVStart", false),
// ("__OSDBINTSTART", false),
// ("__OSDBJUMPSTART", false),
("SIInit", false),
("SIGetType", false),
("SISetSamplingRate", false),
("SISetXY", false),
("VIGetTvFormat", false),
("DVDInit", false),
("DVDSetAutoFatalMessaging", false),
("OSSetArenaLo", false),
("OSSetArenaHi", false),
("OSSetMEM1ArenaLo", false),
("OSSetMEM1ArenaHi", false),
("OSSetMEM2ArenaLo", false),
("OSSetMEM2ArenaHi", false),
("__OSInitAudioSystem", false),
("__OSInitMemoryProtection", false),
// ("BATConfig", false), TODO
("ReportOSInfo", false),
("__check_pad3", false),
("OSResetSystem", false),
("OSReturnToMenu", false),
("__OSReturnToMenu", false),
("__OSShutdownDevices", false),
("__OSInitSram", false),
("__OSSyncSram", false),
("__OSGetExceptionHandler", false),
("OSRegisterResetFunction", false),
("OSRegisterShutdownFunction", false),
("DecrementerExceptionHandler", false),
("DecrementerExceptionCallback", false),
("__OSInterruptInit", false),
("__OSContextInit", false),
("OSSwitchFPUContext", false),
("OSReport", false),
("TRK_main", false),
("TRKNubWelcome", false),
("TRKInitializeNub", false),
("TRKInitializeIntDrivenUART", false),
("TRKEXICallBack", false),
("TRKLoadContext", false),
("TRKInterruptHandler", false),
("TRKExceptionHandler", false),
("TRKSaveExtended1Block", false),
("TRKNubMainLoop", false),
("TRKTargetContinue", false),
("TRKSwapAndGo", false),
("TRKRestoreExtended1Block", false),
("TRKInterruptHandlerEnableInterrupts", false),
("memset", false),
("__msl_runtime_constraint_violation_s", false),
("ClearArena", false),
("IPCCltInit", false),
("__OSInitSTM", false),
("IOS_Open", false),
("__ios_Ipc2", false),
("IPCiProfQueueReq", false),
("SCInit", false),
("SCReloadConfFileAsync", false),
("NANDPrivateOpenAsync", false),
("nandIsInitialized", false),
("nandOpen", false),
("nandGenerateAbsPath", false),
("nandGetHeadToken", false),
("ISFS_OpenAsync", false),
("nandConvertErrorCode", false),
("NANDLoggingAddMessageAsync", false),
("__NANDPrintErrorMessage", false),
("__OSInitNet", false),
("__DVDCheckDevice", false),
("__OSInitPlayTime", false),
("__OSStartPlayRecord", false),
("NANDInit", false),
("ISFS_OpenLib", false),
("ESP_GetTitleId", false),
("NANDSetAutoErrorMessaging", false),
("__DVDFSInit", false),
("__DVDClearWaitingQueue", false),
("__DVDInitWA", false),
("__DVDLowSetWAType", false),
("__fstLoad", false),
("DVDReset", false),
("DVDLowReset", false),
("DVDReadDiskID", false),
("stateReady", false),
("DVDLowWaitCoverClose", false),
("__DVDStoreErrorCode", false),
("DVDLowStopMotor", false),
("DVDGetDriveStatus", false),
("printf", false),
("sprintf", false),
("vprintf", false),
("vsprintf", false),
("vsnprintf", false),
("__pformatter", false),
("longlong2str", false),
("__mod2u", false),
("__FileWrite", false),
("fwrite", false),
("__fwrite", false),
("__stdio_atexit", false),
("__StringWrite", false),
("RSOStaticLocateObject", true),
];
fn main() -> Result<()> {
let output = std::process::Command::new("git").args(["rev-parse", "HEAD"]).output()?;
let rev = String::from_utf8(output.stdout)?;
println!("cargo:rustc-env=GIT_COMMIT_SHA={rev}"); println!("cargo:rustc-env=GIT_COMMIT_SHA={rev}");
println!("cargo:rustc-rerun-if-changed=.git/HEAD"); println!("cargo:rustc-rerun-if-changed=.git/HEAD");
let mut symbols = Vec::<SigSymbol>::new();
let mut out = HashMap::<String, Sig>::new();
let in_dir = PathBuf::from("assets/signatures");
for &(name, search) in SIGNATURES {
let path = in_dir.join(format!("{name}.yml"));
println!("cargo:rustc-rerun-if-changed={}", path.display());
let str = fs::read_to_string(&path)
.with_context(|| format!("Failed to open '{}'", path.display()))?;
apply_sig(&str, &mut symbols, &mut out, search)?;
}
let mut encoder = GzEncoder::new(Vec::new(), Compression::best());
rmp_serde::encode::write(&mut encoder, &Output { symbols, signatures: out })?;
let compressed = encoder.finish()?;
let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
fs::write(out_dir.join("signatures.bin"), compressed)?;
Ok(())
}
fn apply_sig(
sig_str: &str,
symbols: &mut Vec<SigSymbol>,
out: &mut HashMap<String, Sig>,
search: bool,
) -> Result<()> {
let data = parse_yml(sig_str)?;
for in_sig in data {
let in_sym = &in_sig.symbols[in_sig.symbol];
let mut out_sig = Sig {
symbol: add_symbol(symbols, in_sym)?,
data: STANDARD.decode(&in_sig.signature)?,
relocations: vec![],
search,
};
for in_reloc in &in_sig.relocations {
out_sig.relocations.push(SigReloc {
offset: in_reloc.offset,
symbol: add_symbol(symbols, &in_sig.symbols[in_reloc.symbol])?,
kind: to_sig_reloc_kind(in_reloc.kind)?,
addend: in_reloc.addend,
});
}
out.insert(in_sym.name.clone(), out_sig);
}
Ok(())
}
fn to_sym_section(s: Option<&str>) -> Result<SigSection> {
match s {
None => Ok(SigSection::Unknown),
Some(".init") => Ok(SigSection::Init),
Some("extab") => Ok(SigSection::Extab),
Some("extabindex") => Ok(SigSection::Extabindex),
Some(".text") => Ok(SigSection::Text),
Some(".ctors") => Ok(SigSection::Ctors),
Some(".dtors") => Ok(SigSection::Dtors),
Some(".rodata") => Ok(SigSection::Rodata),
Some(".data") => Ok(SigSection::Data),
Some(".bss") => Ok(SigSection::Bss),
Some(".sdata") => Ok(SigSection::Sdata),
Some(".sbss") => Ok(SigSection::Sbss),
Some(".sdata2") => Ok(SigSection::Sdata2),
Some(".sbss2") => Ok(SigSection::Sbss2),
Some(".dbgtext") => Ok(SigSection::Dbgtext),
Some(section) => Err(anyhow!("Unknown section {}", section)),
}
}
fn to_sig_symbol_kind(kind: ObjSymbolKind) -> Result<SigSymbolKind> {
match kind {
ObjSymbolKind::Unknown => Ok(SigSymbolKind::Unknown),
ObjSymbolKind::Function => Ok(SigSymbolKind::Function),
ObjSymbolKind::Object => Ok(SigSymbolKind::Object),
ObjSymbolKind::Section => Err(anyhow!("Section symbols unsupported")),
}
}
fn to_sig_symbol_flags(flags: ObjSymbolFlagSet) -> Result<u8> {
let mut out = 0;
for flag in flags.0 {
match flag {
ObjSymbolFlags::Global => {
out |= SigSymbolFlag::Global as u8;
}
ObjSymbolFlags::Local => {
out |= SigSymbolFlag::Local as u8;
}
ObjSymbolFlags::Weak => {
out |= SigSymbolFlag::Weak as u8;
}
ObjSymbolFlags::Common => {
out |= SigSymbolFlag::Common as u8;
}
ObjSymbolFlags::Hidden => {
out |= SigSymbolFlag::Hidden as u8;
}
}
}
Ok(out)
}
fn to_sig_reloc_kind(kind: ObjRelocKind) -> Result<SigRelocKind> {
match kind {
ObjRelocKind::Absolute => Ok(SigRelocKind::Absolute),
ObjRelocKind::PpcAddr16Hi => Ok(SigRelocKind::PpcAddr16Hi),
ObjRelocKind::PpcAddr16Ha => Ok(SigRelocKind::PpcAddr16Ha),
ObjRelocKind::PpcAddr16Lo => Ok(SigRelocKind::PpcAddr16Lo),
ObjRelocKind::PpcRel24 => Ok(SigRelocKind::PpcRel24),
ObjRelocKind::PpcRel14 => Ok(SigRelocKind::PpcRel14),
ObjRelocKind::PpcEmbSda21 => Ok(SigRelocKind::PpcEmbSda21),
}
}
fn add_symbol(symbols: &mut Vec<SigSymbol>, in_sym: &OutSymbol) -> Result<usize> {
let sig_section = to_sym_section(in_sym.section.as_deref())?;
let sig_symbol_kind = to_sig_symbol_kind(in_sym.kind)?;
let sig_symbol_flags = to_sig_symbol_flags(in_sym.flags)?;
if let Some((idx, existing)) = symbols.iter_mut().enumerate().find(|(_, sym)| {
sym.kind == sig_symbol_kind && sym.size == in_sym.size && sym.name == in_sym.name
}) {
if existing.kind != sig_symbol_kind {
bail!(
"Mismatched types for {}: {:?} != {:?}",
in_sym.name,
sig_symbol_kind,
existing.kind
);
}
if existing.section != sig_section {
if existing.section == SigSection::Unknown || sig_section == SigSection::Unknown {
existing.section = SigSection::Unknown;
} else {
eprintln!(
"Mismatched sections for {}: {:?} != {:?}",
in_sym.name, sig_section, existing.section
);
existing.section = SigSection::Unknown;
}
}
if existing.size != in_sym.size {
bail!("Mismatched size for {}: {} != {}", in_sym.name, in_sym.size, existing.size);
}
if existing.flags != sig_symbol_flags {
if (existing.flags & (SigSymbolFlag::Weak as u8) != 0
&& sig_symbol_flags & (SigSymbolFlag::Weak as u8) == 0)
|| (sig_symbol_flags & (SigSymbolFlag::Weak as u8) != 0
&& existing.flags & (SigSymbolFlag::Weak as u8) == 0)
{
existing.flags |= SigSymbolFlag::Weak as u8;
} else {
eprintln!(
"Mismatched flags for {}: {} != {}",
in_sym.name, sig_symbol_flags, existing.flags
);
}
}
return Ok(idx);
}
let idx = symbols.len();
symbols.push(SigSymbol {
kind: sig_symbol_kind,
name: in_sym.name.clone(),
size: in_sym.size,
flags: sig_symbol_flags,
section: sig_section,
});
Ok(idx)
} }

5
src/argp_version.rs
View File

@ -6,8 +6,11 @@ use std::ffi::OsStr;
use argp::{parser::ParseGlobalOptions, EarlyExit, FromArgs, TopLevelCommand}; use argp::{parser::ParseGlobalOptions, EarlyExit, FromArgs, TopLevelCommand};
struct ArgsOrVersion<T: FromArgs>(T); struct ArgsOrVersion<T>(T)
where T: FromArgs;
impl<T> TopLevelCommand for ArgsOrVersion<T> where T: FromArgs {} impl<T> TopLevelCommand for ArgsOrVersion<T> where T: FromArgs {}
impl<T> FromArgs for ArgsOrVersion<T> impl<T> FromArgs for ArgsOrVersion<T>
where T: FromArgs where T: FromArgs
{ {

223
src/cmd/dol.rs
View File

@ -44,7 +44,7 @@ use crate::{
dep::DepFile, dep::DepFile,
dol::process_dol, dol::process_dol,
elf::{process_elf, write_elf}, elf::{process_elf, write_elf},
file::{buf_reader, buf_writer, map_file, touch, verify_hash, FileIterator}, file::{buf_reader, buf_writer, map_file, touch, verify_hash, FileIterator, FileReadInfo},
lcf::{asm_path_for_unit, generate_ldscript, obj_path_for_unit}, lcf::{asm_path_for_unit, generate_ldscript, obj_path_for_unit},
map::apply_map_file, map::apply_map_file,
rel::{process_rel, process_rel_header, update_rel_section_alignment}, rel::{process_rel, process_rel_header, update_rel_section_alignment},
@ -145,7 +145,10 @@ fn bool_true() -> bool { true }
fn is_true(b: &bool) -> bool { *b } fn is_true(b: &bool) -> bool { *b }
#[inline] #[inline]
fn is_default<T: Default + PartialEq>(t: &T) -> bool { t == &T::default() } fn is_default<T>(t: &T) -> bool
where T: Default + PartialEq {
t == &T::default()
}
mod path_slash_serde { mod path_slash_serde {
use std::path::PathBuf; use std::path::PathBuf;
@ -453,7 +456,14 @@ pub fn info(args: InfoArgs) -> Result<()> {
Ok(()) Ok(())
} }
type ModuleMap<'a> = BTreeMap<u32, (&'a ModuleConfig, ObjInfo)>; struct ModuleInfo<'a> {
obj: ObjInfo,
config: &'a ModuleConfig,
symbols_cache: Option<FileReadInfo>,
splits_cache: Option<FileReadInfo>,
}
type ModuleMap<'a> = BTreeMap<u32, ModuleInfo<'a>>;
fn update_symbols(obj: &mut ObjInfo, modules: &ModuleMap<'_>, create_symbols: bool) -> Result<()> { fn update_symbols(obj: &mut ObjInfo, modules: &ModuleMap<'_>, create_symbols: bool) -> Result<()> {
log::debug!("Updating symbols for module {}", obj.module_id); log::debug!("Updating symbols for module {}", obj.module_id);
@ -463,8 +473,8 @@ fn update_symbols(obj: &mut ObjInfo, modules: &ModuleMap<'_>, create_symbols: bo
.unresolved_relocations .unresolved_relocations
.iter() .iter()
.map(|r| (obj.module_id, r)) .map(|r| (obj.module_id, r))
.chain(modules.iter().flat_map(|(_, (_, obj))| { .chain(modules.iter().flat_map(|(_, info)| {
obj.unresolved_relocations.iter().map(|r| (obj.module_id, r)) info.obj.unresolved_relocations.iter().map(|r| (info.obj.module_id, r))
})) }))
.filter(|(_, r)| r.module_id == obj.module_id) .filter(|(_, r)| r.module_id == obj.module_id)
{ {
@ -565,7 +575,7 @@ fn create_relocations(obj: &mut ObjInfo, modules: &ModuleMap<'_>, dol_obj: &ObjI
&modules &modules
.get(&rel_reloc.module_id) .get(&rel_reloc.module_id)
.ok_or_else(|| anyhow!("Failed to locate module {}", rel_reloc.module_id))? .ok_or_else(|| anyhow!("Failed to locate module {}", rel_reloc.module_id))?
.1 .obj
}; };
let (target_section_index, _target_section) = if rel_reloc.module_id == 0 { let (target_section_index, _target_section) = if rel_reloc.module_id == 0 {
@ -646,7 +656,7 @@ fn resolve_external_relocations(
.ok_or_else(|| { .ok_or_else(|| {
anyhow!("Failed to locate module {}", reloc.module.unwrap()) anyhow!("Failed to locate module {}", reloc.module.unwrap())
})? })?
.1 .obj
}; };
let target_symbol = &target_obj.symbols[reloc.target_symbol]; let target_symbol = &target_obj.symbols[reloc.target_symbol];
@ -670,7 +680,12 @@ fn resolve_external_relocations(
Ok(()) Ok(())
} }
type AnalyzeResult = (ObjInfo, Vec<PathBuf>); struct AnalyzeResult {
obj: ObjInfo,
dep: Vec<PathBuf>,
symbols_cache: Option<FileReadInfo>,
splits_cache: Option<FileReadInfo>,
}
fn load_analyze_dol(config: &ProjectConfig) -> Result<AnalyzeResult> { fn load_analyze_dol(config: &ProjectConfig) -> Result<AnalyzeResult> {
log::debug!("Loading {}", config.base.object.display()); log::debug!("Loading {}", config.base.object.display());
@ -692,15 +707,19 @@ fn load_analyze_dol(config: &ProjectConfig) -> Result<AnalyzeResult> {
dep.push(map_path.clone()); dep.push(map_path.clone());
} }
if let Some(splits_path) = &config.base.splits { let splits_cache = if let Some(splits_path) = &config.base.splits {
apply_splits_file(splits_path, &mut obj)?;
dep.push(splits_path.clone()); dep.push(splits_path.clone());
} apply_splits_file(splits_path, &mut obj)?
} else {
None
};
if let Some(symbols_path) = &config.base.symbols { let symbols_cache = if let Some(symbols_path) = &config.base.symbols {
apply_symbols_file(symbols_path, &mut obj)?;
dep.push(symbols_path.clone()); dep.push(symbols_path.clone());
} apply_symbols_file(symbols_path, &mut obj)?
} else {
None
};
if !config.symbols_known { if !config.symbols_known {
// TODO move before symbols? // TODO move before symbols?
@ -732,72 +751,73 @@ fn load_analyze_dol(config: &ProjectConfig) -> Result<AnalyzeResult> {
// Create _ctors and _dtors symbols if missing // Create _ctors and _dtors symbols if missing
update_ctors_dtors(&mut obj)?; update_ctors_dtors(&mut obj)?;
Ok((obj, dep)) Ok(AnalyzeResult { obj, dep, symbols_cache, splits_cache })
} }
fn split_write_obj( fn split_write_obj(
obj: &mut ObjInfo, module: &mut ModuleInfo,
config: &ProjectConfig, config: &ProjectConfig,
module_config: &ModuleConfig,
out_dir: &Path, out_dir: &Path,
no_update: bool, no_update: bool,
) -> Result<OutputModule> { ) -> Result<OutputModule> {
debug!("Performing relocation analysis"); debug!("Performing relocation analysis");
let mut tracker = Tracker::new(obj); let mut tracker = Tracker::new(&module.obj);
tracker.process(obj)?; tracker.process(&module.obj)?;
debug!("Applying relocations"); debug!("Applying relocations");
tracker.apply(obj, false)?; tracker.apply(&mut module.obj, false)?;
if !config.symbols_known && config.detect_objects { if !config.symbols_known && config.detect_objects {
debug!("Detecting object boundaries"); debug!("Detecting object boundaries");
detect_objects(obj)?; detect_objects(&mut module.obj)?;
} }
if config.detect_strings { if config.detect_strings {
debug!("Detecting strings"); debug!("Detecting strings");
detect_strings(obj)?; detect_strings(&mut module.obj)?;
} }
debug!("Adjusting splits"); debug!("Adjusting splits");
let module_id = module.obj.module_id;
update_splits( update_splits(
obj, &mut module.obj,
if obj.module_id == 0 { config.common_start } else { None }, if module_id == 0 { config.common_start } else { None },
config.fill_gaps, config.fill_gaps,
)?; )?;
if !no_update { if !no_update {
debug!("Writing configuration"); debug!("Writing configuration");
if let Some(symbols_path) = &module_config.symbols { if let Some(symbols_path) = &module.config.symbols {
write_symbols_file(symbols_path, obj)?; write_symbols_file(symbols_path, &module.obj, module.symbols_cache)?;
} }
if let Some(splits_path) = &module_config.splits { if let Some(splits_path) = &module.config.splits {
write_splits_file(splits_path, obj, false)?; write_splits_file(splits_path, &module.obj, false, module.splits_cache)?;
} }
} }
debug!("Splitting {} objects", obj.link_order.len()); debug!("Splitting {} objects", module.obj.link_order.len());
let split_objs = split_obj(obj)?; let split_objs = split_obj(&module.obj)?;
debug!("Writing object files"); debug!("Writing object files");
let obj_dir = out_dir.join("obj"); let obj_dir = out_dir.join("obj");
let entry = if obj.kind == ObjKind::Executable { let entry = if module.obj.kind == ObjKind::Executable {
obj.entry.and_then(|e| { module.obj.entry.and_then(|e| {
let (section_index, _) = obj.sections.at_address(e as u32).ok()?; let (section_index, _) = module.obj.sections.at_address(e as u32).ok()?;
let symbols = obj.symbols.at_section_address(section_index, e as u32).collect_vec(); let symbols =
module.obj.symbols.at_section_address(section_index, e as u32).collect_vec();
best_match_for_reloc(symbols, ObjRelocKind::PpcRel24).map(|(_, s)| s.name.clone()) best_match_for_reloc(symbols, ObjRelocKind::PpcRel24).map(|(_, s)| s.name.clone())
}) })
} else { } else {
obj.symbols.by_name("_prolog")?.map(|(_, s)| s.name.clone()) module.obj.symbols.by_name("_prolog")?.map(|(_, s)| s.name.clone())
}; };
let mut out_config = OutputModule { let mut out_config = OutputModule {
name: module_config.name().to_string(), name: module.config.name().to_string(),
module_id: obj.module_id, module_id,
ldscript: out_dir.join("ldscript.lcf"), ldscript: out_dir.join("ldscript.lcf"),
units: Vec::with_capacity(split_objs.len()), units: Vec::with_capacity(split_objs.len()),
entry, entry,
}; };
for (unit, split_obj) in obj.link_order.iter().zip(&split_objs) { for (unit, split_obj) in module.obj.link_order.iter().zip(&split_objs) {
let out_obj = write_elf(split_obj)?; let out_obj = write_elf(split_obj)?;
let out_path = obj_dir.join(obj_path_for_unit(&unit.name)); let out_path = obj_dir.join(obj_path_for_unit(&unit.name));
out_config.units.push(OutputUnit { out_config.units.push(OutputUnit {
@ -815,7 +835,7 @@ fn split_write_obj(
} }
// Generate ldscript.lcf // Generate ldscript.lcf
let ldscript_template = if let Some(template) = &module_config.ldscript_template { let ldscript_template = if let Some(template) = &module.config.ldscript_template {
Some(fs::read_to_string(template).with_context(|| { Some(fs::read_to_string(template).with_context(|| {
format!("Failed to read linker script template '{}'", template.display()) format!("Failed to read linker script template '{}'", template.display())
})?) })?)
@ -824,13 +844,13 @@ fn split_write_obj(
}; };
fs::write( fs::write(
&out_config.ldscript, &out_config.ldscript,
generate_ldscript(obj, ldscript_template.as_deref(), &module_config.force_active)?, generate_ldscript(&module.obj, ldscript_template.as_deref(), &module.config.force_active)?,
)?; )?;
if config.write_asm { if config.write_asm {
debug!("Writing disassembly"); debug!("Writing disassembly");
let asm_dir = out_dir.join("asm"); let asm_dir = out_dir.join("asm");
for (unit, split_obj) in obj.link_order.iter().zip(&split_objs) { for (unit, split_obj) in module.obj.link_order.iter().zip(&split_objs) {
let out_path = asm_dir.join(asm_path_for_unit(&unit.name)); let out_path = asm_dir.join(asm_path_for_unit(&unit.name));
let mut w = buf_writer(&out_path)?; let mut w = buf_writer(&out_path)?;
@ -861,15 +881,19 @@ fn load_analyze_rel(config: &ProjectConfig, module_config: &ModuleConfig) -> Res
dep.push(map_path.clone()); dep.push(map_path.clone());
} }
if let Some(splits_path) = &module_config.splits { let splits_cache = if let Some(splits_path) = &module_config.splits {
apply_splits_file(splits_path, &mut module_obj)?;
dep.push(splits_path.clone()); dep.push(splits_path.clone());
} apply_splits_file(splits_path, &mut module_obj)?
} else {
None
};
if let Some(symbols_path) = &module_config.symbols { let symbols_cache = if let Some(symbols_path) = &module_config.symbols {
apply_symbols_file(symbols_path, &mut module_obj)?;
dep.push(symbols_path.clone()); dep.push(symbols_path.clone());
} apply_symbols_file(symbols_path, &mut module_obj)?
} else {
None
};
if !config.symbols_known { if !config.symbols_known {
debug!("Analyzing module {}", module_obj.module_id); debug!("Analyzing module {}", module_obj.module_id);
@ -890,7 +914,7 @@ fn load_analyze_rel(config: &ProjectConfig, module_config: &ModuleConfig) -> Res
// Determine REL section alignment // Determine REL section alignment
update_rel_section_alignment(&mut module_obj, &header)?; update_rel_section_alignment(&mut module_obj, &header)?;
Ok((module_obj, dep)) Ok(AnalyzeResult { obj: module_obj, dep, symbols_cache, splits_cache })
} }
fn split(args: SplitArgs) -> Result<()> { fn split(args: SplitArgs) -> Result<()> {
@ -955,17 +979,30 @@ fn split(args: SplitArgs) -> Result<()> {
}); });
}); });
let duration = start.elapsed(); let duration = start.elapsed();
let (mut obj, dep_v) = dol_result.unwrap()?; let mut dol = {
let mut function_count = obj.symbols.by_kind(ObjSymbolKind::Function).count(); let result = dol_result.unwrap()?;
dep.extend(dep_v); dep.extend(result.dep);
ModuleInfo {
obj: result.obj,
config: &config.base,
symbols_cache: result.symbols_cache,
splits_cache: result.splits_cache,
}
};
let mut function_count = dol.obj.symbols.by_kind(ObjSymbolKind::Function).count();
let mut modules = BTreeMap::<u32, (&ModuleConfig, ObjInfo)>::new(); let mut modules = BTreeMap::<u32, ModuleInfo<'_>>::new();
for (idx, (module_obj, dep_v)) in modules_result.unwrap()?.into_iter().enumerate() { for (idx, result) in modules_result.unwrap()?.into_iter().enumerate() {
function_count += module_obj.symbols.by_kind(ObjSymbolKind::Function).count(); function_count += result.obj.symbols.by_kind(ObjSymbolKind::Function).count();
dep.extend(dep_v); dep.extend(result.dep);
match modules.entry(module_obj.module_id) { match modules.entry(result.obj.module_id) {
Entry::Vacant(e) => e.insert((&config.modules[idx], module_obj)), Entry::Vacant(e) => e.insert(ModuleInfo {
Entry::Occupied(_) => bail!("Duplicate module ID {}", obj.module_id), obj: result.obj,
config: &config.modules[idx],
symbols_cache: result.symbols_cache,
splits_cache: result.splits_cache,
}),
Entry::Occupied(_) => bail!("Duplicate module ID {}", result.obj.module_id),
}; };
} }
info!( info!(
@ -979,26 +1016,26 @@ fn split(args: SplitArgs) -> Result<()> {
let module_ids = modules.keys().cloned().collect_vec(); let module_ids = modules.keys().cloned().collect_vec();
// Create any missing symbols (referenced from other modules) and set FORCEACTIVE // Create any missing symbols (referenced from other modules) and set FORCEACTIVE
update_symbols(&mut obj, &modules, !config.symbols_known)?; update_symbols(&mut dol.obj, &modules, !config.symbols_known)?;
for &module_id in &module_ids { for &module_id in &module_ids {
let (module_config, mut module_obj) = modules.remove(&module_id).unwrap(); let mut module = modules.remove(&module_id).unwrap();
update_symbols(&mut module_obj, &modules, !config.symbols_known)?; update_symbols(&mut module.obj, &modules, !config.symbols_known)?;
modules.insert(module_id, (module_config, module_obj)); modules.insert(module_id, module);
} }
// Create relocations to symbols in other modules // Create relocations to symbols in other modules
for &module_id in &module_ids { for &module_id in &module_ids {
let (module_config, mut module_obj) = modules.remove(&module_id).unwrap(); let mut module = modules.remove(&module_id).unwrap();
create_relocations(&mut module_obj, &modules, &obj)?; create_relocations(&mut module.obj, &modules, &dol.obj)?;
modules.insert(module_id, (module_config, module_obj)); modules.insert(module_id, module);
} }
// Replace external relocations with internal ones, creating extern symbols // Replace external relocations with internal ones, creating extern symbols
resolve_external_relocations(&mut obj, &modules, None)?; resolve_external_relocations(&mut dol.obj, &modules, None)?;
for &module_id in &module_ids { for &module_id in &module_ids {
let (module_config, mut module_obj) = modules.remove(&module_id).unwrap(); let mut module = modules.remove(&module_id).unwrap();
resolve_external_relocations(&mut module_obj, &modules, Some(&obj))?; resolve_external_relocations(&mut module.obj, &modules, Some(&dol.obj))?;
modules.insert(module_id, (module_config, module_obj)); modules.insert(module_id, module);
} }
} }
@ -1017,16 +1054,17 @@ fn split(args: SplitArgs) -> Result<()> {
// DOL // DOL
s.spawn(|_| { s.spawn(|_| {
let _span = let _span =
info_span!("module", name = %config.base.name(), id = obj.module_id).entered(); info_span!("module", name = %config.base.name(), id = dol.obj.module_id).entered();
dol_result = Some( dol_result = Some(
split_write_obj(&mut obj, &config, &config.base, &args.out_dir, args.no_update) split_write_obj(&mut dol, &config, &args.out_dir, args.no_update).with_context(
.with_context(|| { || {
format!( format!(
"While processing object '{}' (module ID {})", "While processing object '{}' (module ID {})",
config.base.file_name(), config.base.file_name(),
obj.module_id dol.obj.module_id
) )
}), },
),
); );
}); });
// Modules // Modules
@ -1034,25 +1072,20 @@ fn split(args: SplitArgs) -> Result<()> {
modules_result = Some( modules_result = Some(
modules modules
.par_iter_mut() .par_iter_mut()
.map(|(&module_id, (module_config, module_obj))| { .map(|(&module_id, module)| {
let _span = let _span =
info_span!("module", name = %module_config.name(), id = module_id) info_span!("module", name = %module.config.name(), id = module_id)
.entered(); .entered();
let out_dir = args.out_dir.join(module_config.name().as_ref()); let out_dir = args.out_dir.join(module.config.name().as_ref());
split_write_obj( split_write_obj(module, &config, &out_dir, args.no_update).with_context(
module_obj, || {
&config,
module_config,
&out_dir,
args.no_update,
)
.with_context(|| {
format!( format!(
"While processing object '{}' (module ID {})", "While processing object '{}' (module ID {})",
module_config.file_name(), module.config.file_name(),
module_id module_id
) )
}) },
)
}) })
.collect(), .collect(),
); );
@ -1101,7 +1134,8 @@ fn split(args: SplitArgs) -> Result<()> {
} }
#[allow(dead_code)] #[allow(dead_code)]
fn validate<P: AsRef<Path>>(obj: &ObjInfo, elf_file: P, state: &AnalyzerState) -> Result<()> { fn validate<P>(obj: &ObjInfo, elf_file: P, state: &AnalyzerState) -> Result<()>
where P: AsRef<Path> {
let real_obj = process_elf(elf_file)?; let real_obj = process_elf(elf_file)?;
for (section_index, real_section) in real_obj.sections.iter() { for (section_index, real_section) in real_obj.sections.iter() {
let obj_section = match obj.sections.get(section_index) { let obj_section = match obj.sections.get(section_index) {
@ -1410,13 +1444,12 @@ fn apply(args: ApplyArgs) -> Result<()> {
process_dol(file.as_slice(), config.base.name().as_ref())? process_dol(file.as_slice(), config.base.name().as_ref())?
}; };
if let Some(symbols_path) = &config.base.symbols { let Some(symbols_path) = &config.base.symbols else {
if !apply_symbols_file(symbols_path, &mut obj)? {
bail!("Symbols file '{}' does not exist", symbols_path.display());
}
} else {
bail!("No symbols file specified in config"); bail!("No symbols file specified in config");
} };
let Some(symbols_cache) = apply_symbols_file(symbols_path, &mut obj)? else {
bail!("Symbols file '{}' does not exist", symbols_path.display());
};
log::info!("Loading {}", args.elf_file.display()); log::info!("Loading {}", args.elf_file.display());
let linked_obj = process_elf(&args.elf_file)?; let linked_obj = process_elf(&args.elf_file)?;
@ -1550,7 +1583,7 @@ fn apply(args: ApplyArgs) -> Result<()> {
} }
} }
write_symbols_file(config.base.symbols.as_ref().unwrap(), &obj)?; write_symbols_file(config.base.symbols.as_ref().unwrap(), &obj, Some(symbols_cache))?;
Ok(()) Ok(())
} }

7
src/cmd/dwarf.rs
View File

@ -101,11 +101,14 @@ fn dump(args: DumpArgs) -> Result<()> {
Ok(()) Ok(())
} }
fn dump_debug_section<W: Write>( fn dump_debug_section<W>(
w: &mut W, w: &mut W,
obj_file: &object::File<'_>, obj_file: &object::File<'_>,
debug_section: Section, debug_section: Section,
) -> Result<()> { ) -> Result<()>
where
W: Write + ?Sized,
{
let mut data = debug_section.uncompressed_data()?.into_owned(); let mut data = debug_section.uncompressed_data()?.into_owned();
// Apply relocations to data // Apply relocations to data

13
src/cmd/elf.rs
View File

@ -19,10 +19,11 @@ use crate::{
obj::ObjKind, obj::ObjKind,
util::{ util::{
asm::write_asm, asm::write_asm,
comment::{read_comment_sym, MWComment}, comment::{CommentSym, MWComment},
config::{write_splits_file, write_symbols_file}, config::{write_splits_file, write_symbols_file},
elf::{process_elf, write_elf}, elf::{process_elf, write_elf},
file::{buf_writer, process_rsp}, file::{buf_writer, process_rsp},
reader::{Endian, FromReader},
signatures::{compare_signature, generate_signature, FunctionSignature}, signatures::{compare_signature, generate_signature, FunctionSignature},
split::split_obj, split::split_obj,
IntoCow, ToCow, IntoCow, ToCow,
@ -136,8 +137,8 @@ fn config(args: ConfigArgs) -> Result<()> {
let obj = process_elf(&args.in_file)?; let obj = process_elf(&args.in_file)?;
DirBuilder::new().recursive(true).create(&args.out_dir)?; DirBuilder::new().recursive(true).create(&args.out_dir)?;
write_symbols_file(args.out_dir.join("symbols.txt"), &obj)?; write_symbols_file(args.out_dir.join("symbols.txt"), &obj, None)?;
write_splits_file(args.out_dir.join("splits.txt"), &obj, false)?; write_splits_file(args.out_dir.join("splits.txt"), &obj, false, None)?;
Ok(()) Ok(())
} }
@ -545,8 +546,8 @@ fn info(args: InfoArgs) -> Result<()> {
let data = comment_section.uncompressed_data()?; let data = comment_section.uncompressed_data()?;
if !data.is_empty() { if !data.is_empty() {
let mut reader = Cursor::new(&*data); let mut reader = Cursor::new(&*data);
let header = let header = MWComment::from_reader(&mut reader, Endian::Big)
MWComment::parse_header(&mut reader).context("While reading .comment section")?; .context("While reading .comment section")?;
println!("\nMetrowerks metadata (.comment):"); println!("\nMetrowerks metadata (.comment):");
println!("\tVersion: {}", header.version); println!("\tVersion: {}", header.version);
println!( println!(
@ -577,7 +578,7 @@ fn info(args: InfoArgs) -> Result<()> {
println!("\tUnsafe global reg vars: {}", header.unsafe_global_reg_vars); println!("\tUnsafe global reg vars: {}", header.unsafe_global_reg_vars);
println!("\n{: >10} | {: <6} | {: <6} | {: <10}", "Align", "Vis", "Active", "Symbol"); println!("\n{: >10} | {: <6} | {: <6} | {: <10}", "Align", "Vis", "Active", "Symbol");
for symbol in in_file.symbols() { for symbol in in_file.symbols() {
let comment_sym = read_comment_sym(&mut reader)?; let comment_sym = CommentSym::from_reader(&mut reader, Endian::Big)?;
if symbol.is_definition() { if symbol.is_definition() {
println!( println!(
"{: >10} | {: <#6X} | {: <#6X} | {: <10}", "{: >10} | {: <#6X} | {: <#6X} | {: <10}",

3
src/cmd/elf2dol.rs
View File

@ -150,7 +150,8 @@ const fn align32(x: u32) -> u32 { (x + 31) & !31 }
const ZERO_BUF: [u8; 32] = [0u8; 32]; const ZERO_BUF: [u8; 32] = [0u8; 32];
#[inline] #[inline]
fn write_aligned<T: Write>(out: &mut T, bytes: &[u8], aligned_size: u32) -> std::io::Result<()> { fn write_aligned<T>(out: &mut T, bytes: &[u8], aligned_size: u32) -> std::io::Result<()>
where T: Write + ?Sized {
out.write_all(bytes)?; out.write_all(bytes)?;
let padding = aligned_size - bytes.len() as u32; let padding = aligned_size - bytes.len() as u32;
if padding > 0 { if padding > 0 {

231
src/cmd/map.rs
View File

@ -1,7 +1,6 @@
#![allow(clippy::needless_borrow)]
use std::path::PathBuf; use std::path::PathBuf;
use anyhow::{bail, Result}; use anyhow::{bail, ensure, Result};
use argp::FromArgs; use argp::FromArgs;
use cwdemangle::{demangle, DemangleOptions}; use cwdemangle::{demangle, DemangleOptions};
@ -23,9 +22,6 @@ pub struct Args {
enum SubCommand { enum SubCommand {
Entries(EntriesArgs), Entries(EntriesArgs),
Symbol(SymbolArgs), Symbol(SymbolArgs),
Order(OrderArgs),
Slices(SlicesArgs),
Symbols(SymbolsArgs),
} }
#[derive(FromArgs, PartialEq, Eq, Debug)] #[derive(FromArgs, PartialEq, Eq, Debug)]
@ -52,40 +48,10 @@ pub struct SymbolArgs {
symbol: String, symbol: String,
} }
#[derive(FromArgs, PartialEq, Eq, Debug)]
/// Attempts to resolve global link order.
#[argp(subcommand, name = "order")]
pub struct OrderArgs {
#[argp(positional)]
/// path to input map
map_file: PathBuf,
}
#[derive(FromArgs, PartialEq, Eq, Debug)]
/// Emits a slices.yml for ppcdis. (WIP)
#[argp(subcommand, name = "slices")]
pub struct SlicesArgs {
#[argp(positional)]
/// path to input map
map_file: PathBuf,
}
#[derive(FromArgs, PartialEq, Eq, Debug)]
/// Emits a symbols.yml for ppcdis. (WIP)
#[argp(subcommand, name = "symbols")]
pub struct SymbolsArgs {
#[argp(positional)]
/// path to input map
map_file: PathBuf,
}
pub fn run(args: Args) -> Result<()> { pub fn run(args: Args) -> Result<()> {
match args.command { match args.command {
SubCommand::Entries(c_args) => entries(c_args), SubCommand::Entries(c_args) => entries(c_args),
SubCommand::Symbol(c_args) => symbol(c_args), SubCommand::Symbol(c_args) => symbol(c_args),
SubCommand::Order(c_args) => order(c_args),
SubCommand::Slices(c_args) => slices(c_args),
SubCommand::Symbols(c_args) => symbols(c_args),
} }
} }
@ -94,12 +60,25 @@ fn entries(args: EntriesArgs) -> Result<()> {
let entries = process_map(&mut file.as_reader())?; let entries = process_map(&mut file.as_reader())?;
match entries.unit_entries.get_vec(&args.unit) { match entries.unit_entries.get_vec(&args.unit) {
Some(vec) => { Some(vec) => {
println!("Entries for {}:", args.unit);
for symbol_ref in vec { for symbol_ref in vec {
if symbol_ref.name.starts_with('@') { if symbol_ref.name.starts_with('@') {
continue; continue;
} }
if let Some((section, entry)) = entries.get_section_symbol(symbol_ref) {
println!(
">>> {} ({:?},{:?}) @ {}:{:#010X} [{}]",
entry.demangled.as_ref().unwrap_or(&entry.name),
entry.kind,
entry.visibility,
section,
entry.address,
entry.unit.as_deref().unwrap_or("(generated)"),
);
} else {
let demangled = demangle(&symbol_ref.name, &DemangleOptions::default()); let demangled = demangle(&symbol_ref.name, &DemangleOptions::default());
println!("{}", demangled.as_deref().unwrap_or(&symbol_ref.name)); println!(">>> {}", demangled.as_deref().unwrap_or(&symbol_ref.name));
}
} }
} }
None => bail!("Failed to find entries for TU '{}' in map", args.unit), None => bail!("Failed to find entries for TU '{}' in map", args.unit),
@ -109,121 +88,75 @@ fn entries(args: EntriesArgs) -> Result<()> {
fn symbol(args: SymbolArgs) -> Result<()> { fn symbol(args: SymbolArgs) -> Result<()> {
let file = map_file(&args.map_file)?; let file = map_file(&args.map_file)?;
log::info!("Processing map...");
let entries = process_map(&mut file.as_reader())?; let entries = process_map(&mut file.as_reader())?;
let opt_ref: Option<(SymbolRef, SymbolEntry)> = None; log::info!("Done!");
let mut opt_ref: Option<(String, SymbolEntry)> = None;
_ = entries; for (section, symbol_map) in &entries.section_symbols {
_ = opt_ref; for symbol_entry in symbol_map.values().flatten() {
// TODO if symbol_entry.name == args.symbol {
ensure!(opt_ref.is_none(), "Found multiple symbols with name '{}'", args.symbol);
opt_ref = Some((section.clone(), symbol_entry.clone()));
}
}
}
let Some((section, symbol)) = opt_ref else {
bail!("Failed to find symbol '{}' in map", args.symbol);
};
// for (symbol_ref, entry) in &entries.symbols { println!(
// if symbol_ref.name == args.symbol { "Located symbol {} ({:?},{:?}) @ {}:{:#010X} [{}]",
// ensure!(opt_ref.is_none(), "Symbol '{}' found in multiple TUs", args.symbol); symbol.demangled.as_ref().unwrap_or(&symbol.name),
// opt_ref = Some((symbol_ref.clone(), entry.clone())); symbol.kind,
// } symbol.visibility,
// } section,
// match opt_ref { symbol.address,
// Some((symbol_ref, symbol)) => { symbol.unit.as_deref().unwrap_or("(generated)"),
// println!("Located symbol {}", symbol.demangled.as_ref().unwrap_or(&symbol.name)); );
// if let Some(vec) = entries.entry_references.get_vec(&symbol_ref) { let symbol_ref = SymbolRef { name: symbol.name.clone(), unit: symbol.unit.clone() };
// println!("\nReferences:"); if let Some(vec) = entries.entry_references.get_vec(&symbol_ref) {
// for x in vec { println!("\nKnown references:");
// if let Some(reference) = entries.symbols.get(x) { for x in vec {
// println!( if let Some((section, entry)) = entries.get_section_symbol(x) {
// ">>> {} ({:?},{:?}) [{}]", println!(
// reference.demangled.as_ref().unwrap_or(&reference.name), ">>> {} ({:?},{:?}) @ {}:{:#010X} [{}]",
// reference.kind, entry.demangled.as_ref().unwrap_or(&entry.name),
// reference.visibility, entry.kind,
// reference.unit.as_deref().unwrap_or("[generated]") entry.visibility,
// ); section,
// } else { entry.address,
// println!(">>> {} (NOT FOUND)", x.name); entry.unit.as_deref().unwrap_or("(generated)"),
// } );
// } } else {
// } println!(">>> {} (NOT FOUND)", x.name);
// if let Some(vec) = entries.entry_referenced_from.get_vec(&symbol_ref) { }
// println!("\nReferenced from:"); }
// for x in vec { }
// if let Some(reference) = entries.symbols.get(x) { if let Some(vec) = entries.entry_referenced_from.get_vec(&symbol_ref) {
// println!( println!("\nKnown referenced from:");
// ">>> {} ({:?}, {:?}) [{}]", for x in vec {
// reference.demangled.as_ref().unwrap_or(&reference.name), if let Some((section, entry)) = entries.get_section_symbol(x) {
// reference.kind, println!(
// reference.visibility, ">>> {} ({:?}, {:?}) @ {}:{:#010X} [{}]",
// reference.unit.as_deref().unwrap_or("[generated]") entry.demangled.as_ref().unwrap_or(&entry.name),
// ); entry.kind,
// } else { entry.visibility,
// println!(">>> {} (NOT FOUND)", x.name); section,
// } entry.address,
// } entry.unit.as_deref().unwrap_or("(generated)"),
// } );
// println!("\n"); } else {
// } println!(">>> {} (NOT FOUND)", x.name);
// None => bail!("Failed to find symbol '{}' in map", args.symbol), }
// } }
Ok(()) }
} if let Some(vec) = entries.unit_references.get_vec(&symbol_ref) {
println!("\nGenerated in TUs:");
fn order(args: OrderArgs) -> Result<()> { for x in vec {
let file = map_file(&args.map_file)?; println!(">>> {}", x);
let entries = process_map(&mut file.as_reader())?; }
}
_ = entries; println!("\n");
// TODO
// let order = resolve_link_order(&entries.unit_order)?;
// for unit in order {
// println!("{unit}");
// }
Ok(())
}
fn slices(args: SlicesArgs) -> Result<()> {
let file = map_file(&args.map_file)?;
let entries = process_map(&mut file.as_reader())?;
_ = entries;
// TODO
// let order = resolve_link_order(&entries.unit_order)?;
// for unit in order {
// let unit_path = if let Some((lib, name)) = unit.split_once(' ') {
// format!("{}/{}", lib.strip_suffix(".a").unwrap_or(lib), name)
// } else if let Some(strip) = unit.strip_suffix(".o") {
// format!("{strip}.c")
// } else {
// unit.clone()
// };
// println!("{unit_path}:");
// let mut ranges = Vec::<(String, Range<u32>)>::new();
// match entries.unit_section_ranges.get(&unit) {
// Some(sections) => {
// for (name, range) in sections {
// ranges.push((name.clone(), range.clone()));
// }
// }
// None => bail!("Failed to locate sections for unit '{unit}'"),
// }
// ranges.sort_by(|(_, a), (_, b)| a.start.cmp(&b.start));
// for (name, range) in ranges {
// println!("\t{}: [{:#010x}, {:#010x}]", name, range.start, range.end);
// }
// }
Ok(())
}
fn symbols(args: SymbolsArgs) -> Result<()> {
let file = map_file(&args.map_file)?;
let entries = process_map(&mut file.as_reader())?;
_ = entries;
// TODO
// for (address, symbol) in entries.address_to_symbol {
// if symbol.name.starts_with('@') {
// continue;
// }
// println!("{:#010x}: {}", address, symbol.name);
// }
Ok(()) Ok(())
} }

12
src/cmd/shasum.rs
View File

@ -47,7 +47,8 @@ pub fn run(args: Args) -> Result<()> {
Ok(()) Ok(())
} }
fn check<R: BufRead>(args: &Args, reader: &mut R) -> Result<()> { fn check<R>(args: &Args, reader: &mut R) -> Result<()>
where R: BufRead + ?Sized {
let mut matches = 0usize; let mut matches = 0usize;
let mut mismatches = 0usize; let mut mismatches = 0usize;
for line in reader.lines() { for line in reader.lines() {
@ -97,7 +98,8 @@ fn check<R: BufRead>(args: &Args, reader: &mut R) -> Result<()> {
Ok(()) Ok(())
} }
fn hash<R: Read>(reader: &mut R, path: &Path) -> Result<()> { fn hash<R>(reader: &mut R, path: &Path) -> Result<()>
where R: Read + ?Sized {
let hash = file_sha1(reader)?; let hash = file_sha1(reader)?;
let mut hash_buf = [0u8; 40]; let mut hash_buf = [0u8; 40];
let hash_str = base16ct::lower::encode_str(&hash, &mut hash_buf) let hash_str = base16ct::lower::encode_str(&hash, &mut hash_buf)
@ -106,7 +108,8 @@ fn hash<R: Read>(reader: &mut R, path: &Path) -> Result<()> {
Ok(()) Ok(())
} }
pub fn file_sha1<R: Read>(reader: &mut R) -> Result<sha1::digest::Output<Sha1>> { pub fn file_sha1<R>(reader: &mut R) -> Result<sha1::digest::Output<Sha1>>
where R: Read + ?Sized {
let mut buf = [0u8; DEFAULT_BUF_SIZE]; let mut buf = [0u8; DEFAULT_BUF_SIZE];
let mut hasher = Sha1::new(); let mut hasher = Sha1::new();
Ok(loop { Ok(loop {
@ -118,7 +121,8 @@ pub fn file_sha1<R: Read>(reader: &mut R) -> Result<sha1::digest::Output<Sha1>>
}) })
} }
pub fn file_sha1_string<R: Read>(reader: &mut R) -> Result<String> { pub fn file_sha1_string<R>(reader: &mut R) -> Result<String>
where R: Read + ?Sized {
let hash = file_sha1(reader)?; let hash = file_sha1(reader)?;
let mut hash_buf = [0u8; 40]; let mut hash_buf = [0u8; 40];
let hash_str = base16ct::lower::encode_str(&hash, &mut hash_buf) let hash_str = base16ct::lower::encode_str(&hash, &mut hash_buf)

4
src/main.rs
View File

@ -87,7 +87,7 @@ enum SubCommand {
Dwarf(cmd::dwarf::Args), Dwarf(cmd::dwarf::Args),
Elf(cmd::elf::Args), Elf(cmd::elf::Args),
Elf2Dol(cmd::elf2dol::Args), Elf2Dol(cmd::elf2dol::Args),
// Map(cmd::map::Args), Map(cmd::map::Args),
MetroidBuildInfo(cmd::metroidbuildinfo::Args), MetroidBuildInfo(cmd::metroidbuildinfo::Args),
Nlzss(cmd::nlzss::Args), Nlzss(cmd::nlzss::Args),
Rarc(cmd::rarc::Args), Rarc(cmd::rarc::Args),
@ -159,7 +159,7 @@ fn main() {
SubCommand::Dwarf(c_args) => cmd::dwarf::run(c_args), SubCommand::Dwarf(c_args) => cmd::dwarf::run(c_args),
SubCommand::Elf(c_args) => cmd::elf::run(c_args), SubCommand::Elf(c_args) => cmd::elf::run(c_args),
SubCommand::Elf2Dol(c_args) => cmd::elf2dol::run(c_args), SubCommand::Elf2Dol(c_args) => cmd::elf2dol::run(c_args),
// SubCommand::Map(c_args) => cmd::map::run(c_args), SubCommand::Map(c_args) => cmd::map::run(c_args),
SubCommand::MetroidBuildInfo(c_args) => cmd::metroidbuildinfo::run(c_args), SubCommand::MetroidBuildInfo(c_args) => cmd::metroidbuildinfo::run(c_args),
SubCommand::Nlzss(c_args) => cmd::nlzss::run(c_args), SubCommand::Nlzss(c_args) => cmd::nlzss::run(c_args),
SubCommand::Rarc(c_args) => cmd::rarc::run(c_args), SubCommand::Rarc(c_args) => cmd::rarc::run(c_args),

5
src/obj/symbols.rs
View File

@ -125,7 +125,10 @@ impl ObjSymbolFlagSet {
#[allow(clippy::derived_hash_with_manual_eq)] #[allow(clippy::derived_hash_with_manual_eq)]
impl Hash for ObjSymbolFlagSet { impl Hash for ObjSymbolFlagSet {
fn hash<H: Hasher>(&self, state: &mut H) { self.0.bits().hash(state) } fn hash<H>(&self, state: &mut H)
where H: Hasher {
self.0.bits().hash(state)
}
} }
#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash, Default, Serialize, Deserialize)] #[derive(Debug, Copy, Clone, Eq, PartialEq, Hash, Default, Serialize, Deserialize)]

74
src/util/asm.rs
View File

@ -29,7 +29,8 @@ struct SymbolEntry {
kind: SymbolEntryKind, kind: SymbolEntryKind,
} }
pub fn write_asm<W: Write>(w: &mut W, obj: &ObjInfo) -> Result<()> { pub fn write_asm<W>(w: &mut W, obj: &ObjInfo) -> Result<()>
where W: Write + ?Sized {
writeln!(w, ".include \"macros.inc\"")?; writeln!(w, ".include \"macros.inc\"")?;
if !obj.name.is_empty() { if !obj.name.is_empty() {
let name = obj let name = obj
@ -230,7 +231,7 @@ pub fn write_asm<W: Write>(w: &mut W, obj: &ObjInfo) -> Result<()> {
Ok(()) Ok(())
} }
fn write_code_chunk<W: Write>( fn write_code_chunk<W>(
w: &mut W, w: &mut W,
symbols: &[ObjSymbol], symbols: &[ObjSymbol],
_entries: &BTreeMap<u32, Vec<SymbolEntry>>, _entries: &BTreeMap<u32, Vec<SymbolEntry>>,
@ -238,7 +239,10 @@ fn write_code_chunk<W: Write>(
section: &ObjSection, section: &ObjSection,
address: u32, address: u32,
data: &[u8], data: &[u8],
) -> Result<()> { ) -> Result<()>
where
W: Write + ?Sized,
{
for ins in disasm_iter(data, address) { for ins in disasm_iter(data, address) {
let reloc = relocations.get(&ins.addr); let reloc = relocations.get(&ins.addr);
let file_offset = section.file_offset + (ins.addr as u64 - section.address); let file_offset = section.file_offset + (ins.addr as u64 - section.address);
@ -247,14 +251,17 @@ fn write_code_chunk<W: Write>(
Ok(()) Ok(())
} }
fn write_ins<W: Write>( fn write_ins<W>(
w: &mut W, w: &mut W,
symbols: &[ObjSymbol], symbols: &[ObjSymbol],
ins: Ins, ins: Ins,
reloc: Option<&ObjReloc>, reloc: Option<&ObjReloc>,
file_offset: u64, file_offset: u64,
section_address: u64, section_address: u64,
) -> Result<()> { ) -> Result<()>
where
W: Write + ?Sized,
{
write!( write!(
w, w,
"/* {:08X} {:08X} {:02X} {:02X} {:02X} {:02X} */\t", "/* {:08X} {:08X} {:02X} {:02X} {:02X} {:02X} */\t",
@ -316,7 +323,8 @@ fn write_ins<W: Write>(
Ok(()) Ok(())
} }
fn write_reloc<W: Write>(w: &mut W, symbols: &[ObjSymbol], reloc: &ObjReloc) -> Result<()> { fn write_reloc<W>(w: &mut W, symbols: &[ObjSymbol], reloc: &ObjReloc) -> Result<()>
where W: Write + ?Sized {
write_reloc_symbol(w, symbols, reloc)?; write_reloc_symbol(w, symbols, reloc)?;
match reloc.kind { match reloc.kind {
ObjRelocKind::Absolute | ObjRelocKind::PpcRel24 | ObjRelocKind::PpcRel14 => { ObjRelocKind::Absolute | ObjRelocKind::PpcRel24 | ObjRelocKind::PpcRel14 => {
@ -338,11 +346,8 @@ fn write_reloc<W: Write>(w: &mut W, symbols: &[ObjSymbol], reloc: &ObjReloc) ->
Ok(()) Ok(())
} }
fn write_symbol_entry<W: Write>( fn write_symbol_entry<W>(w: &mut W, symbols: &[ObjSymbol], entry: &SymbolEntry) -> Result<()>
w: &mut W, where W: Write + ?Sized {
symbols: &[ObjSymbol],
entry: &SymbolEntry,
) -> Result<()> {
let symbol = &symbols[entry.index]; let symbol = &symbols[entry.index];
// Skip writing certain symbols // Skip writing certain symbols
@ -405,7 +410,7 @@ fn write_symbol_entry<W: Write>(
} }
#[allow(clippy::too_many_arguments)] #[allow(clippy::too_many_arguments)]
fn write_data<W: Write>( fn write_data<W>(
w: &mut W, w: &mut W,
symbols: &[ObjSymbol], symbols: &[ObjSymbol],
entries: &BTreeMap<u32, Vec<SymbolEntry>>, entries: &BTreeMap<u32, Vec<SymbolEntry>>,
@ -414,7 +419,10 @@ fn write_data<W: Write>(
start: u32, start: u32,
end: u32, end: u32,
section_entries: &[BTreeMap<u32, Vec<SymbolEntry>>], section_entries: &[BTreeMap<u32, Vec<SymbolEntry>>],
) -> Result<()> { ) -> Result<()>
where
W: Write + ?Sized,
{
let mut entry_iter = entries.range(start..end); let mut entry_iter = entries.range(start..end);
let mut reloc_iter = relocations.range(start..end); let mut reloc_iter = relocations.range(start..end);
@ -577,7 +585,8 @@ fn find_data_kind(
Ok(kind) Ok(kind)
} }
fn write_string<W: Write>(w: &mut W, data: &[u8]) -> Result<()> { fn write_string<W>(w: &mut W, data: &[u8]) -> Result<()>
where W: Write + ?Sized {
let terminated = matches!(data.last(), Some(&b) if b == 0); let terminated = matches!(data.last(), Some(&b) if b == 0);
if terminated { if terminated {
write!(w, "\t.string \"")?; write!(w, "\t.string \"")?;
@ -601,7 +610,8 @@ fn write_string<W: Write>(w: &mut W, data: &[u8]) -> Result<()> {
Ok(()) Ok(())
} }
fn write_string16<W: Write>(w: &mut W, data: &[u16]) -> Result<()> { fn write_string16<W>(w: &mut W, data: &[u16]) -> Result<()>
where W: Write + ?Sized {
if matches!(data.last(), Some(&b) if b == 0) { if matches!(data.last(), Some(&b) if b == 0) {
write!(w, "\t.string16 \"")?; write!(w, "\t.string16 \"")?;
} else { } else {
@ -630,7 +640,8 @@ fn write_string16<W: Write>(w: &mut W, data: &[u16]) -> Result<()> {
Ok(()) Ok(())
} }
fn write_data_chunk<W: Write>(w: &mut W, data: &[u8], data_kind: ObjDataKind) -> Result<()> { fn write_data_chunk<W>(w: &mut W, data: &[u8], data_kind: ObjDataKind) -> Result<()>
where W: Write + ?Sized {
let remain = data; let remain = data;
match data_kind { match data_kind {
ObjDataKind::String => { ObjDataKind::String => {
@ -718,14 +729,17 @@ fn write_data_chunk<W: Write>(w: &mut W, data: &[u8], data_kind: ObjDataKind) ->
Ok(()) Ok(())
} }
fn write_data_reloc<W: Write>( fn write_data_reloc<W>(
w: &mut W, w: &mut W,
symbols: &[ObjSymbol], symbols: &[ObjSymbol],
_entries: &BTreeMap<u32, Vec<SymbolEntry>>, _entries: &BTreeMap<u32, Vec<SymbolEntry>>,
reloc_address: u32, reloc_address: u32,
reloc: &ObjReloc, reloc: &ObjReloc,
section_entries: &[BTreeMap<u32, Vec<SymbolEntry>>], section_entries: &[BTreeMap<u32, Vec<SymbolEntry>>],
) -> Result<u32> { ) -> Result<u32>
where
W: Write + ?Sized,
{
match reloc.kind { match reloc.kind {
ObjRelocKind::Absolute => { ObjRelocKind::Absolute => {
// Attempt to use .rel macro for relative relocations // Attempt to use .rel macro for relative relocations
@ -759,13 +773,16 @@ fn write_data_reloc<W: Write>(
} }
} }
fn write_bss<W: Write>( fn write_bss<W>(
w: &mut W, w: &mut W,
symbols: &[ObjSymbol], symbols: &[ObjSymbol],
entries: &BTreeMap<u32, Vec<SymbolEntry>>, entries: &BTreeMap<u32, Vec<SymbolEntry>>,
start: u32, start: u32,
end: u32, end: u32,
) -> Result<()> { ) -> Result<()>
where
W: Write + ?Sized,
{
let mut entry_iter = entries.range(start..end); let mut entry_iter = entries.range(start..end);
let mut current_address = start; let mut current_address = start;
@ -798,13 +815,16 @@ fn write_bss<W: Write>(
Ok(()) Ok(())
} }
fn write_section_header<W: Write>( fn write_section_header<W>(
w: &mut W, w: &mut W,
section: &ObjSection, section: &ObjSection,
subsection: usize, subsection: usize,
start: u32, start: u32,
end: u32, end: u32,
) -> Result<()> { ) -> Result<()>
where
W: Write + ?Sized,
{
writeln!( writeln!(
w, w,
"\n# {:#010X} - {:#010X}", "\n# {:#010X} - {:#010X}",
@ -865,11 +885,14 @@ fn write_section_header<W: Write>(
Ok(()) Ok(())
} }
fn write_reloc_symbol<W: Write>( fn write_reloc_symbol<W>(
w: &mut W, w: &mut W,
symbols: &[ObjSymbol], symbols: &[ObjSymbol],
reloc: &ObjReloc, reloc: &ObjReloc,
) -> std::io::Result<()> { ) -> std::io::Result<()>
where
W: Write + ?Sized,
{
write_symbol_name(w, &symbols[reloc.target_symbol].name)?; write_symbol_name(w, &symbols[reloc.target_symbol].name)?;
match reloc.addend.cmp(&0i64) { match reloc.addend.cmp(&0i64) {
Ordering::Greater => write!(w, "+{:#X}", reloc.addend), Ordering::Greater => write!(w, "+{:#X}", reloc.addend),
@ -878,7 +901,8 @@ fn write_reloc_symbol<W: Write>(
} }
} }
fn write_symbol_name<W: Write>(w: &mut W, name: &str) -> std::io::Result<()> { fn write_symbol_name<W>(w: &mut W, name: &str) -> std::io::Result<()>
where W: Write + ?Sized {
if name.contains('@') if name.contains('@')
|| name.contains('<') || name.contains('<')
|| name.contains('\\') || name.contains('\\')

322
src/util/comment.rs
View File

@ -1,13 +1,15 @@
use std::{ use std::{
io::{Read, Seek, SeekFrom, Write}, io,
ops::Deref, io::{Read, Seek, Write},
}; };
use anyhow::{bail, ensure, Context, Result}; use anyhow::{bail, Result};
use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
use num_enum::{IntoPrimitive, TryFromPrimitive}; use num_enum::{IntoPrimitive, TryFromPrimitive};
use crate::obj::{ObjSymbol, ObjSymbolKind}; use crate::{
obj::{ObjSymbol, ObjSymbolKind},
util::reader::{skip_bytes, struct_size, Endian, FromReader, ToWriter},
};
#[derive(Debug, Copy, Clone, IntoPrimitive, TryFromPrimitive)] #[derive(Debug, Copy, Clone, IntoPrimitive, TryFromPrimitive)]
#[repr(u8)] #[repr(u8)]
@ -29,6 +31,131 @@ pub struct MWComment {
pub unsafe_global_reg_vars: bool, pub unsafe_global_reg_vars: bool,
} }
const MAGIC: &[u8] = "CodeWarrior".as_bytes();
const HEADER_SIZE: u8 = 0x2C;
const PADDING: &[u8] = &[0u8; 0x16];
impl FromReader for MWComment {
type Args = ();
const STATIC_SIZE: usize = HEADER_SIZE as usize;
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
let mut header = MWComment {
version: 0,
compiler_version: [0; 4],
pool_data: false,
float: MWFloatKind::None,
processor: 0,
incompatible_return_small_structs: false,
incompatible_sfpe_double_params: false,
unsafe_global_reg_vars: false,
};
// 0x0 - 0xA
let magic = <[u8; MAGIC.len()]>::from_reader(reader, e)?;
if magic != MAGIC {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Invalid .comment section magic: {:?}", magic),
));
}
// 0xB
header.version = u8::from_reader(reader, e)?;
if !matches!(header.version, 8 | 10 | 11 | 13 | 14 | 15) {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Unknown .comment section version: {}", header.version),
));
}
// 0xC - 0xF
reader.read_exact(&mut header.compiler_version)?;
// 0x10
header.pool_data = match u8::from_reader(reader, e)? {
0 => false,
1 => true,
value => {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Invalid value for pool_data: {}", value),
))
}
};
// 0x11
header.float = MWFloatKind::try_from(u8::from_reader(reader, e)?)
.map_err(|_| io::Error::new(io::ErrorKind::InvalidData, "Invalid value for float"))?;
// 0x12 - 0x13
header.processor = u16::from_reader(reader, e)?;
// 0x14
match u8::from_reader(reader, e)? {
HEADER_SIZE => {}
v => {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Expected header size {:#X}, got {:#X}", HEADER_SIZE, v),
))
}
}
// 0x15
let flags = u8::from_reader(reader, e)?;
if flags & !7 != 0 {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Unexpected flag value {:#X}", flags),
));
}
if flags & 1 == 1 {
header.incompatible_return_small_structs = true;
}
if flags & 2 == 2 {
header.incompatible_sfpe_double_params = true;
}
if flags & 4 == 4 {
header.unsafe_global_reg_vars = true;
}
// 0x16 - 0x2C
skip_bytes::<0x16, _>(reader)?;
Ok(header)
}
}
impl ToWriter for MWComment {
fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized {
// 0x0 - 0xA
MAGIC.to_writer(writer, e)?;
// 0xB
self.version.to_writer(writer, e)?;
// 0xC - 0xF
self.compiler_version.to_writer(writer, e)?;
// 0x10
(if self.pool_data { 1u8 } else { 0u8 }).to_writer(writer, e)?;
// 0x11
u8::from(self.float).to_writer(writer, e)?;
// 0x12 - 0x13
self.processor.to_writer(writer, e)?;
// 0x14
HEADER_SIZE.to_writer(writer, e)?;
// 0x15
let mut flags = 0u8;
if self.incompatible_return_small_structs {
flags |= 1;
}
if self.incompatible_sfpe_double_params {
flags |= 2;
}
if self.unsafe_global_reg_vars {
flags |= 4;
}
flags.to_writer(writer, e)?;
// 0x16 - 0x2C
PADDING.to_writer(writer, e)?;
Ok(())
}
fn write_size(&self) -> usize { Self::STATIC_SIZE }
}
impl MWComment { impl MWComment {
pub fn new(version: u8) -> Result<Self> { pub fn new(version: u8) -> Result<Self> {
// Metrowerks C/C++ Compiler for Embedded PowerPC. // Metrowerks C/C++ Compiler for Embedded PowerPC.
@ -60,107 +187,6 @@ impl MWComment {
} }
} }
const MAGIC: &[u8] = "CodeWarrior".as_bytes();
const PADDING: &[u8] = &[0u8; 0x16];
impl MWComment {
pub fn parse_header<R: Read + Seek>(reader: &mut R) -> Result<MWComment> {
let mut header = MWComment {
version: 0,
compiler_version: [0; 4],
pool_data: false,
float: MWFloatKind::None,
processor: 0,
incompatible_return_small_structs: false,
incompatible_sfpe_double_params: false,
unsafe_global_reg_vars: false,
};
// 0x0 - 0xA
let mut magic = vec![0u8; MAGIC.len()];
reader.read_exact(&mut magic).context("While reading magic")?;
if magic.deref() != MAGIC {
bail!("Invalid .comment section magic: {:?}", magic);
}
// 0xB
header.version = reader.read_u8()?;
ensure!(
matches!(header.version, 8 | 10 | 11 | 13 | 14 | 15),
"Unknown .comment section version: {}",
header.version
);
// 0xC - 0xF
reader
.read_exact(&mut header.compiler_version)
.context("While reading compiler version")?;
// 0x10
header.pool_data = match reader.read_u8()? {
0 => false,
1 => true,
value => bail!("Invalid value for pool_data: {}", value),
};
// 0x11
header.float =
MWFloatKind::try_from(reader.read_u8()?).context("Invalid value for float")?;
// 0x12 - 0x13
header.processor = reader.read_u16::<BigEndian>()?;
// 0x14
match reader.read_u8()? as char {
// This is 0x2C, which could also be the size of the header? Unclear
',' => {}
c => bail!("Expected ',' after processor, got '{}'", c),
}
// 0x15
let flags = reader.read_u8()?;
if flags & !7 != 0 {
bail!("Unexpected flag value {:#X}", flags);
}
if flags & 1 == 1 {
header.incompatible_return_small_structs = true;
}
if flags & 2 == 2 {
header.incompatible_sfpe_double_params = true;
}
if flags & 4 == 4 {
header.unsafe_global_reg_vars = true;
}
// 0x16 - 0x2C
reader.seek(SeekFrom::Current(0x16))?;
Ok(header)
}
pub fn write_header<W: Write>(&self, w: &mut W) -> Result<()> {
// 0x0 - 0xA
w.write_all(MAGIC)?;
// 0xB
w.write_u8(self.version)?;
// 0xC - 0xF
w.write_all(&self.compiler_version)?;
// 0x10
w.write_u8(if self.pool_data { 1 } else { 0 })?;
// 0x11
w.write_u8(self.float.into())?;
// 0x12 - 0x13
w.write_u16::<BigEndian>(self.processor)?;
// 0x14
w.write_u8(0x2C)?;
// 0x15
let mut flags = 0u8;
if self.incompatible_return_small_structs {
flags |= 1;
}
if self.incompatible_sfpe_double_params {
flags |= 2;
}
if self.unsafe_global_reg_vars {
flags |= 4;
}
w.write_u8(flags)?;
// 0x16 - 0x2C
w.write_all(PADDING)?;
Ok(())
}
}
#[derive(Debug, Copy, Clone)] #[derive(Debug, Copy, Clone)]
pub struct CommentSym { pub struct CommentSym {
pub align: u32, pub align: u32,
@ -168,6 +194,65 @@ pub struct CommentSym {
pub active_flags: u8, pub active_flags: u8,
} }
impl FromReader for CommentSym {
type Args = ();
const STATIC_SIZE: usize = struct_size([
u32::STATIC_SIZE, // align
u8::STATIC_SIZE, // vis_flags
u8::STATIC_SIZE, // active_flags
2, // padding
]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
let mut out = CommentSym { align: 0, vis_flags: 0, active_flags: 0 };
out.align = u32::from_reader(reader, e)?;
out.vis_flags = u8::from_reader(reader, e)?;
if !matches!(out.vis_flags, 0 | 0xD | 0xE) {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Unknown vis_flags: {:#X}", out.vis_flags),
));
}
out.active_flags = u8::from_reader(reader, e)?;
if !matches!(out.active_flags, 0 | 0x8 | 0x10 | 0x20) {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Unknown active_flags: {:#X}", out.active_flags),
));
}
let value = u8::from_reader(reader, e)?;
if value != 0 {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Unexpected value after active_flags (1): {:#X}", value),
));
}
let value = u8::from_reader(reader, e)?;
if value != 0 {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Unexpected value after active_flags (2): {:#X}", value),
));
}
Ok(out)
}
}
impl ToWriter for CommentSym {
fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized {
self.align.to_writer(writer, e)?;
self.vis_flags.to_writer(writer, e)?;
self.active_flags.to_writer(writer, e)?;
[0u8; 2].to_writer(writer, e)?;
Ok(())
}
fn write_size(&self) -> usize { Self::STATIC_SIZE }
}
impl CommentSym { impl CommentSym {
pub fn from(symbol: &ObjSymbol, force_active: bool) -> Self { pub fn from(symbol: &ObjSymbol, force_active: bool) -> Self {
let align = match symbol.align { let align = match symbol.align {
@ -205,28 +290,3 @@ impl CommentSym {
Self { align, vis_flags, active_flags } Self { align, vis_flags, active_flags }
} }
} }
pub fn write_comment_sym<W: Write>(w: &mut W, symbol: CommentSym) -> Result<()> {
w.write_u32::<BigEndian>(symbol.align)?;
w.write_u8(symbol.vis_flags)?;
w.write_u8(symbol.active_flags)?;
w.write_u8(0)?;
w.write_u8(0)?;
Ok(())
}
pub fn read_comment_sym<R: Read>(r: &mut R) -> Result<CommentSym> {
let mut out = CommentSym { align: 0, vis_flags: 0, active_flags: 0 };
out.align = r.read_u32::<BigEndian>()?;
out.vis_flags = r.read_u8()?;
ensure!(matches!(out.vis_flags, 0 | 0xD | 0xE), "Unknown vis_flags {}", out.vis_flags);
out.active_flags = r.read_u8()?;
ensure!(
matches!(out.active_flags, 0 | 0x8 | 0x10 | 0x20),
"Unknown active_flags {}",
out.active_flags
);
ensure!(r.read_u8()? == 0, "Unexpected value after active_flags (1)");
ensure!(r.read_u8()? == 0, "Unexpected value after active_flags (2)");
Ok(out)
}

102
src/util/config.rs
View File

@ -1,4 +1,5 @@
use std::{ use std::{
fs,
io::{BufRead, Write}, io::{BufRead, Write},
num::ParseIntError, num::ParseIntError,
path::Path, path::Path,
@ -7,8 +8,11 @@ use std::{
use anyhow::{anyhow, bail, ensure, Context, Result}; use anyhow::{anyhow, bail, ensure, Context, Result};
use cwdemangle::{demangle, DemangleOptions}; use cwdemangle::{demangle, DemangleOptions};
use filetime::FileTime;
use once_cell::sync::Lazy; use once_cell::sync::Lazy;
use regex::{Captures, Regex}; use regex::{Captures, Regex};
use tracing::{debug, info, warn};
use xxhash_rust::xxh3::xxh3_64;
use crate::{ use crate::{
analysis::cfa::SectionAddress, analysis::cfa::SectionAddress,
@ -17,7 +21,7 @@ use crate::{
ObjSymbolFlags, ObjSymbolKind, ObjUnit, ObjSymbolFlags, ObjSymbolKind, ObjUnit,
}, },
util::{ util::{
file::{buf_writer, map_file}, file::{buf_writer, map_file, FileReadInfo},
split::default_section_align, split::default_section_align,
}, },
}; };
@ -30,9 +34,11 @@ fn parse_hex(s: &str) -> Result<u32, ParseIntError> {
} }
} }
pub fn apply_symbols_file<P: AsRef<Path>>(path: P, obj: &mut ObjInfo) -> Result<bool> { pub fn apply_symbols_file<P>(path: P, obj: &mut ObjInfo) -> Result<Option<FileReadInfo>>
where P: AsRef<Path> {
Ok(if path.as_ref().is_file() { Ok(if path.as_ref().is_file() {
let file = map_file(path)?; let file = map_file(path)?;
let cached = FileReadInfo::new(&file)?;
for result in file.as_reader().lines() { for result in file.as_reader().lines() {
let line = match result { let line = match result {
Ok(line) => line, Ok(line) => line,
@ -42,9 +48,9 @@ pub fn apply_symbols_file<P: AsRef<Path>>(path: P, obj: &mut ObjInfo) -> Result<
obj.add_symbol(symbol, true)?; obj.add_symbol(symbol, true)?;
} }
} }
true Some(cached)
} else { } else {
false None
}) })
} }
@ -168,15 +174,58 @@ pub fn is_auto_symbol(symbol: &ObjSymbol) -> bool {
|| symbol.name.starts_with("jumptable_") || symbol.name.starts_with("jumptable_")
} }
#[inline] fn write_if_unchanged<P, Cb>(path: P, cb: Cb, cached_file: Option<FileReadInfo>) -> Result<()>
pub fn write_symbols_file<P: AsRef<Path>>(path: P, obj: &ObjInfo) -> Result<()> { where
P: AsRef<Path>,
Cb: FnOnce(&mut dyn Write) -> Result<()>,
{
if let Some(cached_file) = cached_file {
// Check file mtime
let path = path.as_ref();
let new_mtime = fs::metadata(path).ok().map(|m| FileTime::from_last_modification_time(&m));
if let Some(new_mtime) = new_mtime {
if new_mtime != cached_file.mtime {
// File changed, don't write
warn!(path = %path.display(), "File changed since read, not updating");
return Ok(());
}
}
// Write to buffer and compare with hash
let mut buf = Vec::new();
cb(&mut buf)?;
if xxh3_64(&buf) == cached_file.hash {
// No changes
debug!(path = %path.display(), "File unchanged");
return Ok(());
}
// Write to file
info!("Writing updated {}", path.display());
fs::write(path, &buf)?;
} else {
// Write directly
let mut w = buf_writer(path)?; let mut w = buf_writer(path)?;
write_symbols(&mut w, obj)?; cb(&mut w)?;
w.flush()?; w.flush()?;
}
Ok(()) Ok(())
} }
pub fn write_symbols<W: Write>(w: &mut W, obj: &ObjInfo) -> Result<()> { #[inline]
pub fn write_symbols_file<P>(
path: P,
obj: &ObjInfo,
cached_file: Option<FileReadInfo>,
) -> Result<()>
where
P: AsRef<Path>,
{
write_if_unchanged(path, |w| write_symbols(w, obj), cached_file)
}
pub fn write_symbols<W>(w: &mut W, obj: &ObjInfo) -> Result<()>
where W: Write + ?Sized {
for (_, symbol) in obj.symbols.iter_ordered() { for (_, symbol) in obj.symbols.iter_ordered() {
if symbol.kind == ObjSymbolKind::Section || is_skip_symbol(symbol) { if symbol.kind == ObjSymbolKind::Section || is_skip_symbol(symbol) {
continue; continue;
@ -186,7 +235,8 @@ pub fn write_symbols<W: Write>(w: &mut W, obj: &ObjInfo) -> Result<()> {
Ok(()) Ok(())
} }
fn write_symbol<W: Write>(w: &mut W, obj: &ObjInfo, symbol: &ObjSymbol) -> Result<()> { fn write_symbol<W>(w: &mut W, obj: &ObjInfo, symbol: &ObjSymbol) -> Result<()>
where W: Write + ?Sized {
write!(w, "{} = ", symbol.name)?; write!(w, "{} = ", symbol.name)?;
let section = symbol.section.and_then(|idx| obj.sections.get(idx)); let section = symbol.section.and_then(|idx| obj.sections.get(idx));
if let Some(section) = section { if let Some(section) = section {
@ -330,14 +380,20 @@ fn section_kind_to_str(kind: ObjSectionKind) -> &'static str {
} }
#[inline] #[inline]
pub fn write_splits_file<P: AsRef<Path>>(path: P, obj: &ObjInfo, all: bool) -> Result<()> { pub fn write_splits_file<P>(
let mut w = buf_writer(path)?; path: P,
write_splits(&mut w, obj, all)?; obj: &ObjInfo,
w.flush()?; all: bool,
Ok(()) cached_file: Option<FileReadInfo>,
) -> Result<()>
where
P: AsRef<Path>,
{
write_if_unchanged(path, |w| write_splits(w, obj, all), cached_file)
} }
pub fn write_splits<W: Write>(w: &mut W, obj: &ObjInfo, all: bool) -> Result<()> { pub fn write_splits<W>(w: &mut W, obj: &ObjInfo, all: bool) -> Result<()>
where W: Write + ?Sized {
writeln!(w, "Sections:")?; writeln!(w, "Sections:")?;
for (_, section) in obj.sections.iter() { for (_, section) in obj.sections.iter() {
write!(w, "\t{:<11} type:{}", section.name, section_kind_to_str(section.kind))?; write!(w, "\t{:<11} type:{}", section.name, section_kind_to_str(section.kind))?;
@ -530,17 +586,20 @@ enum SplitState {
Unit(String), Unit(String),
} }
pub fn apply_splits_file<P: AsRef<Path>>(path: P, obj: &mut ObjInfo) -> Result<bool> { pub fn apply_splits_file<P>(path: P, obj: &mut ObjInfo) -> Result<Option<FileReadInfo>>
where P: AsRef<Path> {
Ok(if path.as_ref().is_file() { Ok(if path.as_ref().is_file() {
let file = map_file(path)?; let file = map_file(path)?;
apply_splits(file.as_reader(), obj)?; let cached = FileReadInfo::new(&file)?;
true apply_splits(&mut file.as_reader(), obj)?;
Some(cached)
} else { } else {
false None
}) })
} }
pub fn apply_splits<R: BufRead>(r: R, obj: &mut ObjInfo) -> Result<()> { pub fn apply_splits<R>(r: &mut R, obj: &mut ObjInfo) -> Result<()>
where R: BufRead + ?Sized {
let mut state = SplitState::None; let mut state = SplitState::None;
for result in r.lines() { for result in r.lines() {
let line = match result { let line = match result {
@ -637,7 +696,8 @@ pub fn apply_splits<R: BufRead>(r: R, obj: &mut ObjInfo) -> Result<()> {
Ok(()) Ok(())
} }
pub fn read_splits_sections<P: AsRef<Path>>(path: P) -> Result<Option<Vec<SectionDef>>> { pub fn read_splits_sections<P>(path: P) -> Result<Option<Vec<SectionDef>>>
where P: AsRef<Path> {
if !path.as_ref().is_file() { if !path.as_ref().is_file() {
return Ok(None); return Ok(None);
} }

6
src/util/dep.rs
View File

@ -16,7 +16,8 @@ pub struct DepFile {
impl DepFile { impl DepFile {
pub fn new(name: PathBuf) -> Self { Self { name, dependencies: vec![] } } pub fn new(name: PathBuf) -> Self { Self { name, dependencies: vec![] } }
pub fn push<P: AsRef<Path>>(&mut self, dependency: P) { pub fn push<P>(&mut self, dependency: P)
where P: AsRef<Path> {
let path = split_path(dependency.as_ref()) let path = split_path(dependency.as_ref())
.map(|(p, _)| p) .map(|(p, _)| p)
.unwrap_or_else(|_| dependency.as_ref().to_path_buf()); .unwrap_or_else(|_| dependency.as_ref().to_path_buf());
@ -29,7 +30,8 @@ impl DepFile {
})); }));
} }
pub fn write<W: Write>(&self, w: &mut W) -> std::io::Result<()> { pub fn write<W>(&self, w: &mut W) -> std::io::Result<()>
where W: Write + ?Sized {
write!(w, "{}:", self.name.to_slash_lossy())?; write!(w, "{}:", self.name.to_slash_lossy())?;
for dep in self.dependencies.iter().unique() { for dep in self.dependencies.iter().unique() {
write!(w, " \\\n {}", dep.to_slash_lossy().replace(' ', "\\ "))?; write!(w, " \\\n {}", dep.to_slash_lossy().replace(' ', "\\ "))?;

5
src/util/dol.rs
View File

@ -8,12 +8,13 @@ use anyhow::{anyhow, bail, ensure, Result};
use crate::{ use crate::{
analysis::cfa::{locate_sda_bases, SectionAddress}, analysis::cfa::{locate_sda_bases, SectionAddress},
array_ref,
obj::{ obj::{
ObjArchitecture, ObjInfo, ObjKind, ObjSection, ObjSectionKind, ObjSymbol, ObjSymbolFlagSet, ObjArchitecture, ObjInfo, ObjKind, ObjSection, ObjSectionKind, ObjSymbol, ObjSymbolFlagSet,
ObjSymbolFlags, ObjSymbolKind, ObjSymbolFlags, ObjSymbolKind,
}, },
util::{ util::{
alf::{AlfFile, AlfSymbol}, alf::{AlfFile, AlfSymbol, ALF_MAGIC},
reader::{skip_bytes, Endian, FromReader}, reader::{skip_bytes, Endian, FromReader},
}, },
}; };
@ -179,7 +180,7 @@ fn read_u32(buf: &[u8], dol: &dyn DolLike, addr: u32) -> Result<u32> {
pub fn process_dol(buf: &[u8], name: &str) -> Result<ObjInfo> { pub fn process_dol(buf: &[u8], name: &str) -> Result<ObjInfo> {
let mut reader = Cursor::new(buf); let mut reader = Cursor::new(buf);
let dol: Box<dyn DolLike> = if buf.len() > 4 && &buf[0..4] == b"RBOF" { let dol: Box<dyn DolLike> = if buf.len() > 4 && *array_ref!(buf, 0, 4) == ALF_MAGIC {
Box::new(AlfFile::from_reader(&mut reader, Endian::Little)?) Box::new(AlfFile::from_reader(&mut reader, Endian::Little)?)
} else { } else {
Box::new(DolFile::from_reader(&mut reader, Endian::Big)?) Box::new(DolFile::from_reader(&mut reader, Endian::Big)?)

64
src/util/dwarf.rs
View File

@ -7,10 +7,12 @@ use std::{
}; };
use anyhow::{anyhow, bail, ensure, Context, Result}; use anyhow::{anyhow, bail, ensure, Context, Result};
use byteorder::{BigEndian, ReadBytesExt};
use num_enum::{IntoPrimitive, TryFromPrimitive}; use num_enum::{IntoPrimitive, TryFromPrimitive};
use crate::array_ref; use crate::{
array_ref,
util::reader::{Endian, FromReader},
};
#[derive(Debug, Eq, PartialEq, Copy, Clone, IntoPrimitive, TryFromPrimitive)] #[derive(Debug, Eq, PartialEq, Copy, Clone, IntoPrimitive, TryFromPrimitive)]
#[repr(u16)] #[repr(u16)]
@ -362,7 +364,8 @@ impl Tag {
} }
} }
pub fn read_debug_section<R: BufRead + Seek>(reader: &mut R) -> Result<TagMap> { pub fn read_debug_section<R>(reader: &mut R) -> Result<TagMap>
where R: BufRead + Seek + ?Sized {
let len = { let len = {
let old_pos = reader.stream_position()?; let old_pos = reader.stream_position()?;
let len = reader.seek(SeekFrom::End(0))?; let len = reader.seek(SeekFrom::End(0))?;
@ -383,7 +386,8 @@ pub fn read_debug_section<R: BufRead + Seek>(reader: &mut R) -> Result<TagMap> {
} }
#[allow(unused)] #[allow(unused)]
pub fn read_aranges_section<R: BufRead + Seek>(reader: &mut R) -> Result<()> { pub fn read_aranges_section<R>(reader: &mut R) -> Result<()>
where R: BufRead + Seek + ?Sized {
let len = { let len = {
let old_pos = reader.stream_position()?; let old_pos = reader.stream_position()?;
let len = reader.seek(SeekFrom::End(0))?; let len = reader.seek(SeekFrom::End(0))?;
@ -398,22 +402,23 @@ pub fn read_aranges_section<R: BufRead + Seek>(reader: &mut R) -> Result<()> {
break; break;
} }
let size = reader.read_u32::<BigEndian>()?; let size = u32::from_reader(reader, Endian::Big)?;
let version = reader.read_u8()?; let version = u8::from_reader(reader, Endian::Big)?;
ensure!(version == 1, "Expected version 1, got {version}"); ensure!(version == 1, "Expected version 1, got {version}");
let _debug_offs = reader.read_u32::<BigEndian>()?; let _debug_offs = u32::from_reader(reader, Endian::Big)?;
let _debug_size = reader.read_u32::<BigEndian>()?; let _debug_size = u32::from_reader(reader, Endian::Big)?;
while reader.stream_position()? < position + size as u64 { while reader.stream_position()? < position + size as u64 {
let _address = reader.read_u32::<BigEndian>()?; let _address = u32::from_reader(reader, Endian::Big)?;
let _length = reader.read_u32::<BigEndian>()?; let _length = u32::from_reader(reader, Endian::Big)?;
} }
} }
Ok(()) Ok(())
} }
fn read_tag<R: BufRead + Seek>(reader: &mut R) -> Result<Tag> { fn read_tag<R>(reader: &mut R) -> Result<Tag>
where R: BufRead + Seek + ?Sized {
let position = reader.stream_position()?; let position = reader.stream_position()?;
let size = reader.read_u32::<BigEndian>()?; let size = u32::from_reader(reader, Endian::Big)?;
if size < 8 { if size < 8 {
// Null entry // Null entry
if size > 4 { if size > 4 {
@ -422,8 +427,8 @@ fn read_tag<R: BufRead + Seek>(reader: &mut R) -> Result<Tag> {
return Ok(Tag { key: position as u32, kind: TagKind::Padding, attributes: vec![] }); return Ok(Tag { key: position as u32, kind: TagKind::Padding, attributes: vec![] });
} }
let tag = let tag = TagKind::try_from(u16::from_reader(reader, Endian::Big)?)
TagKind::try_from(reader.read_u16::<BigEndian>()?).context("Unknown DWARF tag type")?; .context("Unknown DWARF tag type")?;
let mut attributes = Vec::new(); let mut attributes = Vec::new();
if tag == TagKind::Padding { if tag == TagKind::Padding {
reader.seek(SeekFrom::Start(position + size as u64))?; // Skip padding reader.seek(SeekFrom::Start(position + size as u64))?; // Skip padding
@ -437,40 +442,43 @@ fn read_tag<R: BufRead + Seek>(reader: &mut R) -> Result<Tag> {
} }
// TODO Shift-JIS? // TODO Shift-JIS?
fn read_string<R: BufRead>(reader: &mut R) -> Result<String> { fn read_string<R>(reader: &mut R) -> Result<String>
where R: BufRead + ?Sized {
let mut str = String::new(); let mut str = String::new();
let mut buf = [0u8; 1];
loop { loop {
let byte = reader.read_u8()?; reader.read_exact(&mut buf)?;
if byte == 0 { if buf[0] == 0 {
break; break;
} }
str.push(byte as char); str.push(buf[0] as char);
} }
Ok(str) Ok(str)
} }
fn read_attribute<R: BufRead + Seek>(reader: &mut R) -> Result<Attribute> { fn read_attribute<R>(reader: &mut R) -> Result<Attribute>
let attr_type = reader.read_u16::<BigEndian>()?; where R: BufRead + Seek + ?Sized {
let attr_type = u16::from_reader(reader, Endian::Big)?;
let attr = AttributeKind::try_from(attr_type).context("Unknown DWARF attribute type")?; let attr = AttributeKind::try_from(attr_type).context("Unknown DWARF attribute type")?;
let form = FormKind::try_from(attr_type & FORM_MASK).context("Unknown DWARF form type")?; let form = FormKind::try_from(attr_type & FORM_MASK).context("Unknown DWARF form type")?;
let value = match form { let value = match form {
FormKind::Addr => AttributeValue::Address(reader.read_u32::<BigEndian>()?), FormKind::Addr => AttributeValue::Address(u32::from_reader(reader, Endian::Big)?),
FormKind::Ref => AttributeValue::Reference(reader.read_u32::<BigEndian>()?), FormKind::Ref => AttributeValue::Reference(u32::from_reader(reader, Endian::Big)?),
FormKind::Block2 => { FormKind::Block2 => {
let size = reader.read_u16::<BigEndian>()?; let size = u16::from_reader(reader, Endian::Big)?;
let mut data = vec![0u8; size as usize]; let mut data = vec![0u8; size as usize];
reader.read_exact(&mut data)?; reader.read_exact(&mut data)?;
AttributeValue::Block(data) AttributeValue::Block(data)
} }
FormKind::Block4 => { FormKind::Block4 => {
let size = reader.read_u32::<BigEndian>()?; let size = u32::from_reader(reader, Endian::Big)?;
let mut data = vec![0u8; size as usize]; let mut data = vec![0u8; size as usize];
reader.read_exact(&mut data)?; reader.read_exact(&mut data)?;
AttributeValue::Block(data) AttributeValue::Block(data)
} }
FormKind::Data2 => AttributeValue::Data2(reader.read_u16::<BigEndian>()?), FormKind::Data2 => AttributeValue::Data2(u16::from_reader(reader, Endian::Big)?),
FormKind::Data4 => AttributeValue::Data4(reader.read_u32::<BigEndian>()?), FormKind::Data4 => AttributeValue::Data4(u32::from_reader(reader, Endian::Big)?),
FormKind::Data8 => AttributeValue::Data8(reader.read_u64::<BigEndian>()?), FormKind::Data8 => AttributeValue::Data8(u64::from_reader(reader, Endian::Big)?),
FormKind::String => AttributeValue::String(read_string(reader)?), FormKind::String => AttributeValue::String(read_string(reader)?),
}; };
Ok(Attribute { kind: attr, value }) Ok(Attribute { kind: attr, value })
@ -1033,7 +1041,7 @@ pub fn ud_type(tags: &TagMap, tag: &Tag) -> Result<UserDefinedType> {
let mut members = Vec::new(); let mut members = Vec::new();
let mut cursor = Cursor::new(data); let mut cursor = Cursor::new(data);
while cursor.position() < data.len() as u64 { while cursor.position() < data.len() as u64 {
let value = cursor.read_u32::<BigEndian>()?; let value = u32::from_reader(&mut cursor, Endian::Big)?;
let name = read_string(&mut cursor)?; let name = read_string(&mut cursor)?;
members.push(EnumerationMember { name, value }); members.push(EnumerationMember { name, value });
} }

37
src/util/elf.rs
View File

@ -27,8 +27,9 @@ use crate::{
ObjSplit, ObjSymbol, ObjSymbolFlagSet, ObjSymbolFlags, ObjSymbolKind, ObjUnit, ObjSplit, ObjSymbol, ObjSymbolFlagSet, ObjSymbolFlags, ObjSymbolKind, ObjUnit,
}, },
util::{ util::{
comment::{read_comment_sym, write_comment_sym, CommentSym, MWComment}, comment::{CommentSym, MWComment},
file::map_file, file::map_file,
reader::{Endian, FromReader, ToWriter},
}, },
}; };
@ -41,7 +42,8 @@ enum BoundaryState {
FilesEnded, FilesEnded,
} }
pub fn process_elf<P: AsRef<Path>>(path: P) -> Result<ObjInfo> { pub fn process_elf<P>(path: P) -> Result<ObjInfo>
where P: AsRef<Path> {
let file = map_file(path)?; let file = map_file(path)?;
let obj_file = object::read::File::parse(file.as_slice())?; let obj_file = object::read::File::parse(file.as_slice())?;
let architecture = match obj_file.architecture() { let architecture = match obj_file.architecture() {
@ -106,12 +108,12 @@ pub fn process_elf<P: AsRef<Path>>(path: P) -> Result<ObjInfo> {
None None
} else { } else {
let mut reader = Cursor::new(&*data); let mut reader = Cursor::new(&*data);
let header = let header = MWComment::from_reader(&mut reader, Endian::Big)
MWComment::parse_header(&mut reader).context("While reading .comment section")?; .context("While reading .comment section")?;
log::debug!("Loaded .comment section header {:?}", header); log::debug!("Loaded .comment section header {:?}", header);
let mut comment_syms = Vec::with_capacity(obj_file.symbols().count()); let mut comment_syms = Vec::with_capacity(obj_file.symbols().count());
for symbol in obj_file.symbols() { for symbol in obj_file.symbols() {
let comment_sym = read_comment_sym(&mut reader)?; let comment_sym = CommentSym::from_reader(&mut reader, Endian::Big)?;
log::debug!("Symbol {:?} -> Comment {:?}", symbol, comment_sym); log::debug!("Symbol {:?} -> Comment {:?}", symbol, comment_sym);
comment_syms.push(comment_sym); comment_syms.push(comment_sym);
} }
@ -406,13 +408,10 @@ pub fn write_elf(obj: &ObjInfo) -> Result<Vec<u8>> {
name, name,
rela_name: None, rela_name: None,
}); });
mw_comment.write_header(&mut comment_data)?; mw_comment.to_writer_static(&mut comment_data, Endian::Big)?;
// Null symbol // Null symbol
write_comment_sym(&mut comment_data, CommentSym { CommentSym { align: 0, vis_flags: 0, active_flags: 0 }
align: 0, .to_writer_static(&mut comment_data, Endian::Big)?;
vis_flags: 0,
active_flags: 0,
})?;
Some(comment_data) Some(comment_data)
} else { } else {
None None
@ -451,11 +450,8 @@ pub fn write_elf(obj: &ObjInfo) -> Result<Vec<u8>> {
}, },
}); });
if let Some(comment_data) = &mut comment_data { if let Some(comment_data) = &mut comment_data {
write_comment_sym(comment_data, CommentSym { CommentSym { align: 1, vis_flags: 0, active_flags: 0 }
align: 1, .to_writer_static(comment_data, Endian::Big)?;
vis_flags: 0,
active_flags: 0,
})?;
} }
section_symbol_offset += 1; section_symbol_offset += 1;
} }
@ -477,11 +473,8 @@ pub fn write_elf(obj: &ObjInfo) -> Result<Vec<u8>> {
num_local = writer.symbol_count(); num_local = writer.symbol_count();
out_symbols.push(OutSymbol { index, sym }); out_symbols.push(OutSymbol { index, sym });
if let Some(comment_data) = &mut comment_data { if let Some(comment_data) = &mut comment_data {
write_comment_sym(comment_data, CommentSym { CommentSym { align: section.align as u32, vis_flags: 0, active_flags: 0 }
align: section.align as u32, .to_writer_static(comment_data, Endian::Big)?;
vis_flags: 0,
active_flags: 0,
})?;
} }
} }
} }
@ -547,7 +540,7 @@ pub fn write_elf(obj: &ObjInfo) -> Result<Vec<u8>> {
out_symbols.push(OutSymbol { index, sym }); out_symbols.push(OutSymbol { index, sym });
symbol_map[symbol_index] = Some(index.0); symbol_map[symbol_index] = Some(index.0);
if let Some(comment_data) = &mut comment_data { if let Some(comment_data) = &mut comment_data {
write_comment_sym(comment_data, CommentSym::from(symbol, true))?; CommentSym::from(symbol, true).to_writer_static(comment_data, Endian::Big)?;
} }
} }

154
src/util/file.rs
View File

@ -7,17 +7,27 @@ use std::{
}; };
use anyhow::{anyhow, Context, Result}; use anyhow::{anyhow, Context, Result};
use binrw::io::{TakeSeek, TakeSeekExt};
use byteorder::ReadBytesExt;
use filetime::{set_file_mtime, FileTime}; use filetime::{set_file_mtime, FileTime};
use memmap2::{Mmap, MmapOptions}; use memmap2::{Mmap, MmapOptions};
use path_slash::PathBufExt; use path_slash::PathBufExt;
use sha1::{Digest, Sha1}; use sha1::{Digest, Sha1};
use xxhash_rust::xxh3::xxh3_64;
use crate::util::{rarc, rarc::Node, yaz0, IntoCow, ToCow}; use crate::{
array_ref,
util::{
rarc,
rarc::{Node, RARC_MAGIC},
take_seek::{TakeSeek, TakeSeekExt},
yaz0,
yaz0::YAZ0_MAGIC,
IntoCow, ToCow,
},
};
pub struct MappedFile { pub struct MappedFile {
mmap: Mmap, mmap: Mmap,
mtime: FileTime,
offset: u64, offset: u64,
len: u64, len: u64,
} }
@ -36,7 +46,8 @@ impl MappedFile {
pub fn into_inner(self) -> Mmap { self.mmap } pub fn into_inner(self) -> Mmap { self.mmap }
} }
pub fn split_path<P: AsRef<Path>>(path: P) -> Result<(PathBuf, Option<PathBuf>)> { pub fn split_path<P>(path: P) -> Result<(PathBuf, Option<PathBuf>)>
where P: AsRef<Path> {
let mut base_path = PathBuf::new(); let mut base_path = PathBuf::new();
let mut sub_path: Option<PathBuf> = None; let mut sub_path: Option<PathBuf> = None;
for component in path.as_ref().components() { for component in path.as_ref().components() {
@ -58,22 +69,30 @@ pub fn split_path<P: AsRef<Path>>(path: P) -> Result<(PathBuf, Option<PathBuf>)>
} }
/// Opens a memory mapped file, and decompresses it if needed. /// Opens a memory mapped file, and decompresses it if needed.
pub fn map_file<P: AsRef<Path>>(path: P) -> Result<FileEntry> { pub fn map_file<P>(path: P) -> Result<FileEntry>
where P: AsRef<Path> {
let (base_path, sub_path) = split_path(path.as_ref())?; let (base_path, sub_path) = split_path(path.as_ref())?;
let file = File::open(&base_path) let file = File::open(&base_path)
.with_context(|| format!("Failed to open file '{}'", base_path.display()))?; .with_context(|| format!("Failed to open file '{}'", base_path.display()))?;
let mtime = FileTime::from_last_modification_time(&file.metadata()?);
let mmap = unsafe { MmapOptions::new().map(&file) } let mmap = unsafe { MmapOptions::new().map(&file) }
.with_context(|| format!("Failed to mmap file: '{}'", base_path.display()))?; .with_context(|| format!("Failed to mmap file: '{}'", base_path.display()))?;
let (offset, len) = if let Some(sub_path) = sub_path { let (offset, len) = if let Some(sub_path) = sub_path {
let mut reader = Cursor::new(&*mmap); let mut reader = Cursor::new(&*mmap);
if sub_path.as_os_str() == OsStr::new("nlzss") { if sub_path.as_os_str() == OsStr::new("nlzss") {
return Ok(FileEntry::Buffer(nintendo_lz::decompress(&mut reader).map_err(|e| { return Ok(FileEntry::Buffer(
nintendo_lz::decompress(&mut reader).map_err(|e| {
anyhow!("Failed to decompress '{}' with NLZSS: {}", path.as_ref().display(), e) anyhow!("Failed to decompress '{}' with NLZSS: {}", path.as_ref().display(), e)
})?)); })?,
mtime,
));
} else if sub_path.as_os_str() == OsStr::new("yaz0") { } else if sub_path.as_os_str() == OsStr::new("yaz0") {
return Ok(FileEntry::Buffer(yaz0::decompress_file(&mut reader).with_context( return Ok(FileEntry::Buffer(
|| format!("Failed to decompress '{}' with Yaz0", path.as_ref().display()), yaz0::decompress_file(&mut reader).with_context(|| {
)?)); format!("Failed to decompress '{}' with Yaz0", path.as_ref().display())
})?,
mtime,
));
} }
let rarc = rarc::RarcReader::new(&mut reader) let rarc = rarc::RarcReader::new(&mut reader)
@ -84,13 +103,16 @@ pub fn map_file<P: AsRef<Path>>(path: P) -> Result<FileEntry> {
} else { } else {
(0, mmap.len() as u64) (0, mmap.len() as u64)
}; };
let map = MappedFile { mmap, offset, len }; let map = MappedFile { mmap, mtime, offset, len };
let buf = map.as_slice(); let buf = map.as_slice();
// Auto-detect compression if there's a magic number. // Auto-detect compression if there's a magic number.
if buf.len() > 4 && buf[0..4] == *b"Yaz0" { if buf.len() > 4 && buf[0..4] == YAZ0_MAGIC {
return Ok(FileEntry::Buffer(yaz0::decompress_file(&mut map.as_reader()).with_context( return Ok(FileEntry::Buffer(
|| format!("Failed to decompress '{}' with Yaz0", path.as_ref().display()), yaz0::decompress_file(&mut map.as_reader()).with_context(|| {
)?)); format!("Failed to decompress '{}' with Yaz0", path.as_ref().display())
})?,
mtime,
));
} }
Ok(FileEntry::MappedFile(map)) Ok(FileEntry::MappedFile(map))
} }
@ -98,7 +120,8 @@ pub fn map_file<P: AsRef<Path>>(path: P) -> Result<FileEntry> {
pub type OpenedFile = TakeSeek<File>; pub type OpenedFile = TakeSeek<File>;
/// Opens a file (not memory mapped). No decompression is performed. /// Opens a file (not memory mapped). No decompression is performed.
pub fn open_file<P: AsRef<Path>>(path: P) -> Result<OpenedFile> { pub fn open_file<P>(path: P) -> Result<OpenedFile>
where P: AsRef<Path> {
let (base_path, sub_path) = split_path(path)?; let (base_path, sub_path) = split_path(path)?;
let mut file = File::open(&base_path) let mut file = File::open(&base_path)
.with_context(|| format!("Failed to open file '{}'", base_path.display()))?; .with_context(|| format!("Failed to open file '{}'", base_path.display()))?;
@ -118,17 +141,18 @@ pub fn open_file<P: AsRef<Path>>(path: P) -> Result<OpenedFile> {
pub trait Reader: BufRead + Seek {} pub trait Reader: BufRead + Seek {}
impl Reader for Cursor<&[u8]> {} impl Reader for Cursor<&[u8]> {}
// impl Reader for &mut OpenedFile {}
/// Creates a buffered reader around a file (not memory mapped). /// Creates a buffered reader around a file (not memory mapped).
pub fn buf_reader<P: AsRef<Path>>(path: P) -> Result<BufReader<File>> { pub fn buf_reader<P>(path: P) -> Result<BufReader<File>>
where P: AsRef<Path> {
let file = File::open(&path) let file = File::open(&path)
.with_context(|| format!("Failed to open file '{}'", path.as_ref().display()))?; .with_context(|| format!("Failed to open file '{}'", path.as_ref().display()))?;
Ok(BufReader::new(file)) Ok(BufReader::new(file))
} }
/// Creates a buffered writer around a file (not memory mapped). /// Creates a buffered writer around a file (not memory mapped).
pub fn buf_writer<P: AsRef<Path>>(path: P) -> Result<BufWriter<File>> { pub fn buf_writer<P>(path: P) -> Result<BufWriter<File>>
where P: AsRef<Path> {
if let Some(parent) = path.as_ref().parent() { if let Some(parent) = path.as_ref().parent() {
DirBuilder::new().recursive(true).create(parent)?; DirBuilder::new().recursive(true).create(parent)?;
} }
@ -138,7 +162,8 @@ pub fn buf_writer<P: AsRef<Path>>(path: P) -> Result<BufWriter<File>> {
} }
/// Reads a string with known size at the specified offset. /// Reads a string with known size at the specified offset.
pub fn read_string<R: Read + Seek>(reader: &mut R, off: u64, size: usize) -> Result<String> { pub fn read_string<R>(reader: &mut R, off: u64, size: usize) -> Result<String>
where R: Read + Seek + ?Sized {
let mut data = vec![0u8; size]; let mut data = vec![0u8; size];
let pos = reader.stream_position()?; let pos = reader.stream_position()?;
reader.seek(SeekFrom::Start(off))?; reader.seek(SeekFrom::Start(off))?;
@ -148,16 +173,18 @@ pub fn read_string<R: Read + Seek>(reader: &mut R, off: u64, size: usize) -> Res
} }
/// Reads a zero-terminated string at the specified offset. /// Reads a zero-terminated string at the specified offset.
pub fn read_c_string<R: Read + Seek>(reader: &mut R, off: u64) -> Result<String> { pub fn read_c_string<R>(reader: &mut R, off: u64) -> Result<String>
where R: Read + Seek + ?Sized {
let pos = reader.stream_position()?; let pos = reader.stream_position()?;
reader.seek(SeekFrom::Start(off))?; reader.seek(SeekFrom::Start(off))?;
let mut s = String::new(); let mut s = String::new();
let mut buf = [0u8; 1];
loop { loop {
let b = reader.read_u8()?; reader.read_exact(&mut buf)?;
if b == 0 { if buf[0] == 0 {
break; break;
} }
s.push(b as char); s.push(buf[0] as char);
} }
reader.seek(SeekFrom::Start(pos))?; reader.seek(SeekFrom::Start(pos))?;
Ok(s) Ok(s)
@ -190,15 +217,15 @@ pub fn process_rsp(files: &[PathBuf]) -> Result<Vec<PathBuf>> {
/// Iterator over files in a RARC archive. /// Iterator over files in a RARC archive.
struct RarcIterator { struct RarcIterator {
file: Mmap, file: MappedFile,
base_path: PathBuf, base_path: PathBuf,
paths: Vec<(PathBuf, u64, u32)>, paths: Vec<(PathBuf, u64, u32)>,
index: usize, index: usize,
} }
impl RarcIterator { impl RarcIterator {
pub fn new(file: Mmap, base_path: &Path) -> Result<Self> { pub fn new(file: MappedFile, base_path: &Path) -> Result<Self> {
let reader = rarc::RarcReader::new(&mut Cursor::new(&*file))?; let reader = rarc::RarcReader::new(&mut file.as_reader())?;
let paths = Self::collect_paths(&reader, base_path); let paths = Self::collect_paths(&reader, base_path);
Ok(Self { file, base_path: base_path.to_owned(), paths, index: 0 }) Ok(Self { file, base_path: base_path.to_owned(), paths, index: 0 })
} }
@ -237,7 +264,7 @@ impl Iterator for RarcIterator {
let (path, off, size) = self.paths[self.index].clone(); let (path, off, size) = self.paths[self.index].clone();
self.index += 1; self.index += 1;
let slice = &self.file[off as usize..off as usize + size as usize]; let slice = &self.file.as_slice()[off as usize..off as usize + size as usize];
match decompress_if_needed(slice) { match decompress_if_needed(slice) {
Ok(buf) => Some(Ok((path, buf.into_owned()))), Ok(buf) => Some(Ok((path, buf.into_owned()))),
Err(e) => Some(Err(e)), Err(e) => Some(Err(e)),
@ -248,38 +275,61 @@ impl Iterator for RarcIterator {
/// A file entry, either a memory mapped file or an owned buffer. /// A file entry, either a memory mapped file or an owned buffer.
pub enum FileEntry { pub enum FileEntry {
MappedFile(MappedFile), MappedFile(MappedFile),
Buffer(Vec<u8>), Buffer(Vec<u8>, FileTime),
} }
impl FileEntry { impl FileEntry {
/// Creates a reader for the file. /// Creates a reader for the file.
pub fn as_reader(&self) -> Box<dyn Reader + '_> { pub fn as_reader(&self) -> Cursor<&[u8]> {
match self { match self {
Self::MappedFile(file) => Box::new(file.as_reader()), Self::MappedFile(file) => file.as_reader(),
Self::Buffer(slice) => Box::new(Cursor::new(slice.as_slice())), Self::Buffer(slice, _) => Cursor::new(slice.as_slice()),
} }
} }
pub fn as_slice(&self) -> &[u8] { pub fn as_slice(&self) -> &[u8] {
match self { match self {
Self::MappedFile(file) => file.as_slice(), Self::MappedFile(file) => file.as_slice(),
Self::Buffer(slice) => slice.as_slice(), Self::Buffer(slice, _) => slice.as_slice(),
} }
} }
pub fn len(&self) -> u64 { pub fn len(&self) -> u64 {
match self { match self {
Self::MappedFile(file) => file.len(), Self::MappedFile(file) => file.len(),
Self::Buffer(slice) => slice.len() as u64, Self::Buffer(slice, _) => slice.len() as u64,
} }
} }
pub fn is_empty(&self) -> bool { pub fn is_empty(&self) -> bool {
match self { match self {
Self::MappedFile(file) => file.is_empty(), Self::MappedFile(file) => file.is_empty(),
Self::Buffer(slice) => slice.is_empty(), Self::Buffer(slice, _) => slice.is_empty(),
} }
} }
pub fn mtime(&self) -> FileTime {
match self {
Self::MappedFile(file) => file.mtime,
Self::Buffer(_, mtime) => *mtime,
}
}
}
/// Information about a file when it was read.
/// Used to determine if a file has changed since it was read (mtime)
/// and if it needs to be written (hash).
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct FileReadInfo {
pub mtime: FileTime,
pub hash: u64,
}
impl FileReadInfo {
pub fn new(entry: &FileEntry) -> Result<Self> {
let hash = xxh3_64(entry.as_slice());
Ok(Self { mtime: entry.mtime(), hash })
}
} }
/// Iterate over file paths, expanding response files (@) and glob patterns (*). /// Iterate over file paths, expanding response files (@) and glob patterns (*).
@ -303,7 +353,7 @@ impl FileIterator {
let mut path_str = rarc.base_path.as_os_str().to_os_string(); let mut path_str = rarc.base_path.as_os_str().to_os_string();
path_str.push(OsStr::new(":")); path_str.push(OsStr::new(":"));
path_str.push(path.as_os_str()); path_str.push(path.as_os_str());
return Some(Ok((path, FileEntry::Buffer(buf)))); return Some(Ok((path, FileEntry::Buffer(buf, rarc.file.mtime))));
} }
Some(Err(err)) => return Some(Err(err)), Some(Err(err)) => return Some(Err(err)),
None => self.rarc = None, None => self.rarc = None,
@ -321,7 +371,7 @@ impl FileIterator {
self.index += 1; self.index += 1;
match map_file(&path) { match map_file(&path) {
Ok(FileEntry::MappedFile(map)) => self.handle_file(map, path), Ok(FileEntry::MappedFile(map)) => self.handle_file(map, path),
Ok(FileEntry::Buffer(_)) => todo!(), Ok(FileEntry::Buffer(_, _)) => todo!(),
Err(err) => Some(Err(err)), Err(err) => Some(Err(err)),
} }
} }
@ -336,26 +386,30 @@ impl FileIterator {
return Some(Ok((path, FileEntry::MappedFile(file)))); return Some(Ok((path, FileEntry::MappedFile(file))));
} }
match &buf[0..4] { match *array_ref!(buf, 0, 4) {
b"Yaz0" => self.handle_yaz0(file.as_reader(), path), YAZ0_MAGIC => self.handle_yaz0(file, path),
b"RARC" => self.handle_rarc(file.into_inner(), path), RARC_MAGIC => self.handle_rarc(file, path),
_ => Some(Ok((path, FileEntry::MappedFile(file)))), _ => Some(Ok((path, FileEntry::MappedFile(file)))),
} }
} }
fn handle_yaz0( fn handle_yaz0(
&mut self, &mut self,
mut reader: Cursor<&[u8]>, file: MappedFile,
path: PathBuf, path: PathBuf,
) -> Option<Result<(PathBuf, FileEntry)>> { ) -> Option<Result<(PathBuf, FileEntry)>> {
Some(match yaz0::decompress_file(&mut reader) { Some(match yaz0::decompress_file(&mut file.as_reader()) {
Ok(buf) => Ok((path, FileEntry::Buffer(buf))), Ok(buf) => Ok((path, FileEntry::Buffer(buf, file.mtime))),
Err(e) => Err(e), Err(e) => Err(e),
}) })
} }
fn handle_rarc(&mut self, map: Mmap, path: PathBuf) -> Option<Result<(PathBuf, FileEntry)>> { fn handle_rarc(
self.rarc = match RarcIterator::new(map, &path) { &mut self,
file: MappedFile,
path: PathBuf,
) -> Option<Result<(PathBuf, FileEntry)>> {
self.rarc = match RarcIterator::new(file, &path) {
Ok(iter) => Some(iter), Ok(iter) => Some(iter),
Err(e) => return Some(Err(e)), Err(e) => return Some(Err(e)),
}; };
@ -369,7 +423,8 @@ impl Iterator for FileIterator {
fn next(&mut self) -> Option<Self::Item> { self.next_rarc().or_else(|| self.next_path()) } fn next(&mut self) -> Option<Self::Item> { self.next_rarc().or_else(|| self.next_path()) }
} }
pub fn touch<P: AsRef<Path>>(path: P) -> std::io::Result<()> { pub fn touch<P>(path: P) -> std::io::Result<()>
where P: AsRef<Path> {
if path.as_ref().exists() { if path.as_ref().exists() {
set_file_mtime(path, FileTime::now()) set_file_mtime(path, FileTime::now())
} else { } else {
@ -381,14 +436,15 @@ pub fn touch<P: AsRef<Path>>(path: P) -> std::io::Result<()> {
} }
pub fn decompress_if_needed(buf: &[u8]) -> Result<Cow<[u8]>> { pub fn decompress_if_needed(buf: &[u8]) -> Result<Cow<[u8]>> {
Ok(if buf.len() > 4 && buf[0..4] == *b"Yaz0" { Ok(if buf.len() > 4 && buf[0..4] == YAZ0_MAGIC {
yaz0::decompress_file(&mut Cursor::new(buf))?.into_cow() yaz0::decompress_file(&mut Cursor::new(buf))?.into_cow()
} else { } else {
buf.to_cow() buf.to_cow()
}) })
} }
pub fn decompress_reader<R: Read + Seek>(reader: &mut R) -> Result<Vec<u8>> { pub fn decompress_reader<R>(reader: &mut R) -> Result<Vec<u8>>
where R: Read + Seek + ?Sized {
let mut magic = [0u8; 4]; let mut magic = [0u8; 4];
if reader.read_exact(&mut magic).is_err() { if reader.read_exact(&mut magic).is_err() {
reader.seek(SeekFrom::Start(0))?; reader.seek(SeekFrom::Start(0))?;
@ -396,7 +452,7 @@ pub fn decompress_reader<R: Read + Seek>(reader: &mut R) -> Result<Vec<u8>> {
reader.read_to_end(&mut buf)?; reader.read_to_end(&mut buf)?;
return Ok(buf); return Ok(buf);
} }
Ok(if magic == *b"Yaz0" { Ok(if magic == YAZ0_MAGIC {
reader.seek(SeekFrom::Start(0))?; reader.seek(SeekFrom::Start(0))?;
yaz0::decompress_file(reader)? yaz0::decompress_file(reader)?
} else { } else {

42
src/util/map.rs
View File

@ -8,7 +8,7 @@ use std::{
path::Path, path::Path,
}; };
use anyhow::{anyhow, bail, ensure, Error, Result}; use anyhow::{anyhow, bail, Error, Result};
use cwdemangle::{demangle, DemangleOptions}; use cwdemangle::{demangle, DemangleOptions};
use flagset::FlagSet; use flagset::FlagSet;
use multimap::MultiMap; use multimap::MultiMap;
@ -119,15 +119,27 @@ pub struct MapInfo {
pub unit_entries: MultiMap<String, SymbolRef>, pub unit_entries: MultiMap<String, SymbolRef>,
pub entry_references: MultiMap<SymbolRef, SymbolRef>, pub entry_references: MultiMap<SymbolRef, SymbolRef>,
pub entry_referenced_from: MultiMap<SymbolRef, SymbolRef>, pub entry_referenced_from: MultiMap<SymbolRef, SymbolRef>,
pub unit_references: MultiMap<SymbolRef, String>,
pub sections: Vec<SectionInfo>, pub sections: Vec<SectionInfo>,
pub link_map_symbols: HashMap<SymbolRef, SymbolEntry>, pub link_map_symbols: HashMap<SymbolRef, SymbolEntry>,
pub section_symbols: HashMap<String, BTreeMap<u32, Vec<SymbolEntry>>>, pub section_symbols: HashMap<String, BTreeMap<u32, Vec<SymbolEntry>>>,
pub section_units: HashMap<String, Vec<(u32, String)>>, pub section_units: HashMap<String, Vec<(u32, String)>>,
} }
impl MapInfo {
// TODO rework to make this lookup easier
pub fn get_section_symbol(&self, symbol: &SymbolRef) -> Option<(String, &SymbolEntry)> {
self.section_symbols.iter().find_map(|(section, m)| {
m.values()
.find_map(|v| v.iter().find(|e| e.name == symbol.name && e.unit == symbol.unit))
.map(|e| (section.clone(), e))
})
}
}
#[derive(Default)] #[derive(Default)]
struct LinkMapState { struct LinkMapState {
last_symbol_name: String, last_symbol: Option<SymbolRef>,
symbol_stack: Vec<SymbolRef>, symbol_stack: Vec<SymbolRef>,
} }
@ -245,7 +257,7 @@ impl StateMachine {
fn end_state(&mut self, old_state: ProcessMapState) -> Result<()> { fn end_state(&mut self, old_state: ProcessMapState) -> Result<()> {
match old_state { match old_state {
ProcessMapState::LinkMap(state) => { ProcessMapState::LinkMap(state) => {
self.has_link_map = !state.last_symbol_name.is_empty(); self.has_link_map = state.last_symbol.is_some();
} }
ProcessMapState::SectionLayout(state) => { ProcessMapState::SectionLayout(state) => {
StateMachine::end_section_layout(state, &mut self.result)?; StateMachine::end_section_layout(state, &mut self.result)?;
@ -293,8 +305,10 @@ impl StateMachine {
let is_duplicate = &captures["sym"] == ">>>"; let is_duplicate = &captures["sym"] == ">>>";
let unit = captures["tu"].trim().to_string(); let unit = captures["tu"].trim().to_string();
let name = if is_duplicate { let name = if is_duplicate {
ensure!(!state.last_symbol_name.is_empty(), "Last name empty?"); let Some(last_symbol) = &state.last_symbol else {
state.last_symbol_name.clone() bail!("Last symbol empty?");
};
last_symbol.name.clone()
} else { } else {
captures["sym"].to_string() captures["sym"].to_string()
}; };
@ -325,6 +339,14 @@ impl StateMachine {
result.entry_referenced_from.insert(symbol_ref.clone(), from.clone()); result.entry_referenced_from.insert(symbol_ref.clone(), from.clone());
result.entry_references.insert(from.clone(), symbol_ref.clone()); result.entry_references.insert(from.clone(), symbol_ref.clone());
} }
result.unit_references.insert(
if is_duplicate {
state.last_symbol.as_ref().unwrap().clone()
} else {
symbol_ref.clone()
},
unit.clone(),
);
let mut should_insert = true; let mut should_insert = true;
if let Some(symbol) = result.link_map_symbols.get(&symbol_ref) { if let Some(symbol) = result.link_map_symbols.get(&symbol_ref) {
if symbol.kind != kind { if symbol.kind != kind {
@ -358,7 +380,9 @@ impl StateMachine {
size: 0, size: 0,
align: None, align: None,
}); });
state.last_symbol_name = name; if !is_duplicate {
state.last_symbol = Some(symbol_ref.clone());
}
result.unit_entries.insert(unit, symbol_ref); result.unit_entries.insert(unit, symbol_ref);
} }
Ok(()) Ok(())
@ -564,7 +588,8 @@ impl StateMachine {
} }
} }
pub fn process_map<R: BufRead + ?Sized>(reader: &mut R) -> Result<MapInfo> { pub fn process_map<R>(reader: &mut R) -> Result<MapInfo>
where R: BufRead + ?Sized {
let mut sm = StateMachine { let mut sm = StateMachine {
state: ProcessMapState::None, state: ProcessMapState::None,
result: Default::default(), result: Default::default(),
@ -582,7 +607,8 @@ pub fn process_map<R: BufRead + ?Sized>(reader: &mut R) -> Result<MapInfo> {
Ok(sm.result) Ok(sm.result)
} }
pub fn apply_map_file<P: AsRef<Path>>(path: P, obj: &mut ObjInfo) -> Result<()> { pub fn apply_map_file<P>(path: P, obj: &mut ObjInfo) -> Result<()>
where P: AsRef<Path> {
let file = map_file(&path)?; let file = map_file(&path)?;
let info = process_map(&mut file.as_reader())?; let info = process_map(&mut file.as_reader())?;
apply_map(&info, obj) apply_map(&info, obj)

1
src/util/mod.rs
View File

@ -18,6 +18,7 @@ pub mod rel;
pub mod rso; pub mod rso;
pub mod signatures; pub mod signatures;
pub mod split; pub mod split;
pub mod take_seek;
pub mod yaz0; pub mod yaz0;
#[inline] #[inline]

275
src/util/rarc.rs
View File

@ -1,17 +1,21 @@
// Source: https://github.com/Julgodis/picori/blob/650da9f4fe6050b39b80d5360416591c748058d5/src/rarc.rs // Source: https://github.com/Julgodis/picori/blob/650da9f4fe6050b39b80d5360416591c748058d5/src/rarc.rs
// License: MIT // License: MIT
// Modified to use `std::io::Cursor<&[u8]>` and `byteorder` // Modified to use `std::io::Cursor<&[u8]>` and project's FromReader trait
use std::{ use std::{
collections::HashMap, collections::HashMap,
fmt::Display, fmt::Display,
hash::{Hash, Hasher},
io,
io::{Read, Seek, SeekFrom}, io::{Read, Seek, SeekFrom},
path::{Component, Path, PathBuf}, path::{Component, Path, PathBuf},
}; };
use anyhow::{anyhow, bail, ensure, Result}; use anyhow::{anyhow, bail, ensure, Result};
use byteorder::{BigEndian, LittleEndian, ReadBytesExt};
use crate::util::file::read_c_string; use crate::util::{
file::read_c_string,
reader::{struct_size, Endian, FromReader},
};
#[derive(Debug, Clone)] #[derive(Debug, Clone)]
pub struct NamedHash { pub struct NamedHash {
@ -25,8 +29,11 @@ impl Display for NamedHash {
} }
} }
impl std::hash::Hash for NamedHash { impl Hash for NamedHash {
fn hash<H: std::hash::Hasher>(&self, state: &mut H) { self.hash.hash(state); } fn hash<H>(&self, state: &mut H)
where H: Hasher {
self.hash.hash(state);
}
} }
impl PartialEq for NamedHash { impl PartialEq for NamedHash {
@ -73,105 +80,238 @@ pub struct RarcReader {
root_node: NamedHash, root_node: NamedHash,
} }
pub const RARC_MAGIC: [u8; 4] = *b"RARC";
struct RarcHeader {
magic: [u8; 4],
_file_length: u32,
header_length: u32,
file_offset: u32,
_file_length_2: u32,
_unk0: u32,
_unk1: u32,
_unk2: u32,
node_count: u32,
node_offset: u32,
directory_count: u32,
directory_offset: u32,
string_table_length: u32,
string_table_offset: u32,
_file_count: u16,
_unk3: u16,
_unk4: u32,
}
impl FromReader for RarcHeader {
type Args = ();
const STATIC_SIZE: usize = struct_size([
4, // magic
u32::STATIC_SIZE, // file_length
u32::STATIC_SIZE, // header_length
u32::STATIC_SIZE, // file_offset
u32::STATIC_SIZE, // file_length
u32::STATIC_SIZE, // unk0
u32::STATIC_SIZE, // unk1
u32::STATIC_SIZE, // unk2
u32::STATIC_SIZE, // node_count
u32::STATIC_SIZE, // node_offset
u32::STATIC_SIZE, // directory_count
u32::STATIC_SIZE, // directory_offset
u32::STATIC_SIZE, // string_table_length
u32::STATIC_SIZE, // string_table_offset
u16::STATIC_SIZE, // file_count
u16::STATIC_SIZE, // unk3
u32::STATIC_SIZE, // unk4
]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
let header = Self {
magic: <[u8; 4]>::from_reader(reader, e)?,
_file_length: u32::from_reader(reader, e)?,
header_length: u32::from_reader(reader, e)?,
file_offset: u32::from_reader(reader, e)?,
_file_length_2: u32::from_reader(reader, e)?,
_unk0: u32::from_reader(reader, e)?,
_unk1: u32::from_reader(reader, e)?,
_unk2: u32::from_reader(reader, e)?,
node_count: u32::from_reader(reader, e)?,
node_offset: u32::from_reader(reader, e)?,
directory_count: u32::from_reader(reader, e)?,
directory_offset: u32::from_reader(reader, e)?,
string_table_length: u32::from_reader(reader, e)?,
string_table_offset: u32::from_reader(reader, e)?,
_file_count: u16::from_reader(reader, e)?,
_unk3: u16::from_reader(reader, e)?,
_unk4: u32::from_reader(reader, e)?,
};
if header.magic != RARC_MAGIC {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("invalid RARC magic: {:?}", header.magic),
));
}
if header.node_count >= 0x10000 {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("invalid node count: {}", header.node_count),
));
}
if header.directory_count >= 0x10000 {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("invalid directory count: {}", header.directory_count),
));
}
Ok(header)
}
}
struct RarcFileNode {
index: u16,
name_hash: u16,
_unk0: u16, // 0x200 for folders, 0x1100 for files
name_offset: u16,
data_offset: u32,
data_length: u32,
_unk1: u32,
}
impl FromReader for RarcFileNode {
type Args = ();
const STATIC_SIZE: usize = struct_size([
u16::STATIC_SIZE, // index
u16::STATIC_SIZE, // name_hash
u16::STATIC_SIZE, // unk0
u16::STATIC_SIZE, // name_offset
u32::STATIC_SIZE, // data_offset
u32::STATIC_SIZE, // data_length
u32::STATIC_SIZE, // unk1
]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
Ok(Self {
index: u16::from_reader(reader, e)?,
name_hash: u16::from_reader(reader, e)?,
_unk0: u16::from_reader(reader, e)?,
name_offset: u16::from_reader(reader, e)?,
data_offset: u32::from_reader(reader, e)?,
data_length: u32::from_reader(reader, e)?,
_unk1: u32::from_reader(reader, e)?,
})
}
}
struct RarcDirectoryNode {
_identifier: u32,
name_offset: u32,
name_hash: u16,
count: u16,
index: u32,
}
impl FromReader for RarcDirectoryNode {
type Args = ();
const STATIC_SIZE: usize = struct_size([
u32::STATIC_SIZE, // identifier
u32::STATIC_SIZE, // name_offset
u16::STATIC_SIZE, // name_hash
u16::STATIC_SIZE, // count
u32::STATIC_SIZE, // index
]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
Ok(Self {
_identifier: u32::from_reader(reader, e)?,
name_offset: u32::from_reader(reader, e)?,
name_hash: u16::from_reader(reader, e)?,
count: u16::from_reader(reader, e)?,
index: u32::from_reader(reader, e)?,
})
}
}
impl RarcReader { impl RarcReader {
/// Creates a new RARC reader. /// Creates a new RARC reader.
pub fn new<R: Read + Seek>(reader: &mut R) -> Result<Self> { pub fn new<R>(reader: &mut R) -> Result<Self>
where R: Read + Seek + ?Sized {
let base = reader.stream_position()?; let base = reader.stream_position()?;
let header = RarcHeader::from_reader(reader, Endian::Big)?;
let magic = reader.read_u32::<LittleEndian>()?; let base = base + header.header_length as u64;
let _file_length = reader.read_u32::<BigEndian>()?; let directory_base = base + header.directory_offset as u64;
let header_length = reader.read_u32::<BigEndian>()?; let data_base = base + header.file_offset as u64;
let file_offset = reader.read_u32::<BigEndian>()?; let mut directories = Vec::with_capacity(header.directory_count as usize);
let _file_length = reader.read_u32::<BigEndian>()?; for i in 0..header.directory_count {
let _ = reader.read_u32::<BigEndian>()?;
let _ = reader.read_u32::<BigEndian>()?;
let _ = reader.read_u32::<BigEndian>()?;
let node_count = reader.read_u32::<BigEndian>()?;
let node_offset = reader.read_u32::<BigEndian>()?;
let directory_count = reader.read_u32::<BigEndian>()?;
let directory_offset = reader.read_u32::<BigEndian>()?;
let string_table_length = reader.read_u32::<BigEndian>()?;
let string_table_offset = reader.read_u32::<BigEndian>()?;
let _file_count = reader.read_u16::<BigEndian>()?;
let _ = reader.read_u16::<BigEndian>()?;
let _ = reader.read_u32::<BigEndian>()?;
ensure!(magic == 0x43524152, "invalid RARC magic");
ensure!(node_count < 0x10000, "invalid node count");
ensure!(directory_count < 0x10000, "invalid directory count");
let base = base + header_length as u64;
let directory_base = base + directory_offset as u64;
let data_base = base + file_offset as u64;
let mut directories = Vec::with_capacity(directory_count as usize);
for i in 0..directory_count {
reader.seek(SeekFrom::Start(directory_base + 20 * i as u64))?; reader.seek(SeekFrom::Start(directory_base + 20 * i as u64))?;
let index = reader.read_u16::<BigEndian>()?; let node = RarcFileNode::from_reader(reader, Endian::Big)?;
let name_hash = reader.read_u16::<BigEndian>()?;
let _ = reader.read_u16::<BigEndian>()?; // 0x200 for folders, 0x1100 for files
let name_offset = reader.read_u16::<BigEndian>()?;
let data_offset = reader.read_u32::<BigEndian>()?;
let data_length = reader.read_u32::<BigEndian>()?;
let _ = reader.read_u32::<BigEndian>()?;
let name = { let name = {
let offset = string_table_offset as u64; let offset = header.string_table_offset as u64;
let offset = offset + name_offset as u64; let offset = offset + node.name_offset as u64;
ensure!((name_offset as u32) < string_table_length, "invalid string table offset"); ensure!(
(node.name_offset as u32) < header.string_table_length,
"invalid string table offset"
);
read_c_string(reader, base + offset) read_c_string(reader, base + offset)
}?; }?;
if index == 0xFFFF { if node.index == 0xFFFF {
if name == "." { if name == "." {
directories.push(RarcDirectory::CurrentFolder); directories.push(RarcDirectory::CurrentFolder);
} else if name == ".." { } else if name == ".." {
directories.push(RarcDirectory::ParentFolder); directories.push(RarcDirectory::ParentFolder);
} else { } else {
directories directories.push(RarcDirectory::Folder {
.push(RarcDirectory::Folder { name: NamedHash { name, hash: name_hash } }); name: NamedHash { name, hash: node.name_hash },
});
} }
} else { } else {
directories.push(RarcDirectory::File { directories.push(RarcDirectory::File {
name: NamedHash { name, hash: name_hash }, name: NamedHash { name, hash: node.name_hash },
offset: data_base + data_offset as u64, offset: data_base + node.data_offset as u64,
size: data_length, size: node.data_length,
}); });
} }
} }
let node_base = base + node_offset as u64; let node_base = base + header.node_offset as u64;
let mut root_node: Option<NamedHash> = None; let mut root_node: Option<NamedHash> = None;
let mut nodes = HashMap::with_capacity(node_count as usize); let mut nodes = HashMap::with_capacity(header.node_count as usize);
for i in 0..node_count { for i in 0..header.node_count {
reader.seek(SeekFrom::Start(node_base + 16 * i as u64))?; reader.seek(SeekFrom::Start(node_base + 16 * i as u64))?;
let _identifier = reader.read_u32::<BigEndian>()?; let node = RarcDirectoryNode::from_reader(reader, Endian::Big)?;
let name_offset = reader.read_u32::<BigEndian>()?;
let name_hash = reader.read_u16::<BigEndian>()?;
let count = reader.read_u16::<BigEndian>()? as u32;
let index = reader.read_u32::<BigEndian>()?;
ensure!(index < directory_count, "first directory index out of bounds"); ensure!(node.index < header.directory_count, "first directory index out of bounds");
let last_index = index.checked_add(count); let last_index = node.index.checked_add(node.count as u32);
ensure!( ensure!(
last_index.is_some() && last_index.unwrap() <= directory_count, last_index.is_some() && last_index.unwrap() <= header.directory_count,
"last directory index out of bounds" "last directory index out of bounds"
); );
let name = { let name = {
let offset = string_table_offset as u64; let offset = header.string_table_offset as u64;
let offset = offset + name_offset as u64; let offset = offset + node.name_offset as u64;
ensure!(name_offset < string_table_length, "invalid string table offset"); ensure!(
node.name_offset < header.string_table_length,
"invalid string table offset"
);
read_c_string(reader, base + offset) read_c_string(reader, base + offset)
}?; }?;
// FIXME: this assumes that the root node is the first node in the list // FIXME: this assumes that the root node is the first node in the list
if root_node.is_none() { if root_node.is_none() {
root_node = Some(NamedHash { name: name.clone(), hash: name_hash }); root_node = Some(NamedHash { name: name.clone(), hash: node.name_hash });
} }
let name = NamedHash { name, hash: name_hash }; let name = NamedHash { name, hash: node.name_hash };
nodes.insert(name.clone(), RarcNode { index, count }); nodes.insert(name.clone(), RarcNode { index: node.index, count: node.count as u32 });
} }
if let Some(root_node) = root_node { if let Some(root_node) = root_node {
@ -188,7 +328,8 @@ impl RarcReader {
} }
/// Find a file in the RARC file. /// Find a file in the RARC file.
pub fn find_file<P: AsRef<Path>>(&self, path: P) -> Result<Option<(u64, u32)>> { pub fn find_file<P>(&self, path: P) -> Result<Option<(u64, u32)>>
where P: AsRef<Path> {
let mut cmp_path = PathBuf::new(); let mut cmp_path = PathBuf::new();
for component in path.as_ref().components() { for component in path.as_ref().components() {
match component { match component {

6
src/util/reader.rs
View File

@ -172,6 +172,12 @@ pub trait ToWriter: Sized {
fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()> fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized; where W: Write + ?Sized;
#[inline]
fn to_writer_static<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized {
writer.write_all(&self.to_bytes(e)?)
}
fn to_bytes(&self, e: Endian) -> io::Result<Vec<u8>> { fn to_bytes(&self, e: Endian) -> io::Result<Vec<u8>> {
let mut buf = vec![0u8; self.write_size()]; let mut buf = vec![0u8; self.write_size()];
self.to_writer(&mut buf.as_mut_slice(), e)?; self.to_writer(&mut buf.as_mut_slice(), e)?;

311
src/util/rel.rs
View File

@ -1,10 +1,10 @@
use std::{ use std::{
cmp::Ordering, cmp::Ordering,
io,
io::{Read, Seek, SeekFrom, Write}, io::{Read, Seek, SeekFrom, Write},
}; };
use anyhow::{anyhow, bail, ensure, Context, Result}; use anyhow::{anyhow, bail, ensure, Context, Result};
use binrw::{binrw, io::NoSeek, BinRead, BinWrite};
use itertools::Itertools; use itertools::Itertools;
use object::{elf, Object, ObjectSection, ObjectSymbol}; use object::{elf, Object, ObjectSection, ObjectSymbol};
use tracing::warn; use tracing::warn;
@ -15,7 +15,12 @@ use crate::{
ObjArchitecture, ObjInfo, ObjKind, ObjRelocKind, ObjSection, ObjSectionKind, ObjSymbol, ObjArchitecture, ObjInfo, ObjKind, ObjRelocKind, ObjSection, ObjSectionKind, ObjSymbol,
ObjSymbolFlagSet, ObjSymbolFlags, ObjSymbolKind, ObjSymbolFlagSet, ObjSymbolFlags, ObjSymbolKind,
}, },
util::{align_up, split::default_section_align, IntoCow}, util::{
align_up,
reader::{struct_size, Endian, FromReader, ToWriter, DYNAMIC_SIZE},
split::default_section_align,
IntoCow,
},
}; };
/// Do not relocate anything, but accumulate the offset field for the next relocation offset calculation. /// Do not relocate anything, but accumulate the offset field for the next relocation offset calculation.
@ -30,12 +35,7 @@ pub const R_DOLPHIN_END: u32 = 203;
#[allow(unused)] #[allow(unused)]
pub const R_DOLPHIN_MRKREF: u32 = 204; pub const R_DOLPHIN_MRKREF: u32 = 204;
#[binrw]
#[derive(Clone, Debug)] #[derive(Clone, Debug)]
#[br(assert(next == 0))]
#[br(assert(prev == 0))]
#[br(assert(bss_section == 0))]
#[brw(assert(matches!(version, 1..=3), "Unsupported REL version {version}"))]
pub struct RelHeader { pub struct RelHeader {
/// Arbitrary identification number. /// Arbitrary identification number.
/// Must be unique amongst all RELs used by a game. /// Must be unique amongst all RELs used by a game.
@ -43,12 +43,10 @@ pub struct RelHeader {
pub module_id: u32, pub module_id: u32,
/// Pointer to next module. /// Pointer to next module.
/// Filled at runtime. /// Filled at runtime.
#[bw(calc = 0)] // pub next: u32,
pub next: u32,
/// Pointer to previous module. /// Pointer to previous module.
/// Filled at runtime. /// Filled at runtime.
#[bw(calc = 0)] // pub prev: u32,
pub prev: u32,
/// Number of sections in the file. /// Number of sections in the file.
pub num_sections: u32, pub num_sections: u32,
/// Offset to the start of the section table. /// Offset to the start of the section table.
@ -75,8 +73,7 @@ pub struct RelHeader {
pub unresolved_section: u8, pub unresolved_section: u8,
/// Index into section table which bss is relative to. /// Index into section table which bss is relative to.
/// Filled at runtime. /// Filled at runtime.
#[bw(calc = 0)] // pub bss_section: u8,
pub bss_section: u8,
/// Offset into the section containing `_prolog`. /// Offset into the section containing `_prolog`.
pub prolog_offset: u32, pub prolog_offset: u32,
/// Offset into the section containing `_epilog`. /// Offset into the section containing `_epilog`.
@ -85,36 +82,218 @@ pub struct RelHeader {
pub unresolved_offset: u32, pub unresolved_offset: u32,
/// (Version >= 2 only) /// (Version >= 2 only)
/// Alignment constraint on all sections. /// Alignment constraint on all sections.
#[br(if(version >= 2))]
#[bw(if(*version >= 2))]
pub align: Option<u32>, pub align: Option<u32>,
/// (Version >= 2 only) /// (Version >= 2 only)
/// Alignment constraint on the `.bss` section. /// Alignment constraint on the `.bss` section.
#[br(if(version >= 2))]
#[bw(if(*version >= 2))]
pub bss_align: Option<u32>, pub bss_align: Option<u32>,
/// (Version >= 3 only) /// (Version >= 3 only)
/// If REL is linked with `OSLinkFixed` (instead of `OSLink`), the /// If REL is linked with `OSLinkFixed` (instead of `OSLink`), the
/// space after this offset can be used for other purposes, like BSS. /// space after this offset can be used for other purposes, like BSS.
#[br(if(version >= 3))]
#[bw(if(*version >= 3))]
pub fix_size: Option<u32>, pub fix_size: Option<u32>,
} }
#[binrw] impl FromReader for RelHeader {
type Args = ();
// Differs by version
const STATIC_SIZE: usize = DYNAMIC_SIZE;
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
let module_id = u32::from_reader(reader, e)?;
let next = u32::from_reader(reader, e)?;
if next != 0 {
return Err(io::Error::new(io::ErrorKind::InvalidData, "Expected next == 0"));
}
let prev = u32::from_reader(reader, e)?;
if prev != 0 {
return Err(io::Error::new(io::ErrorKind::InvalidData, "Expected prev == 0"));
}
let num_sections = u32::from_reader(reader, e)?;
let section_info_offset = u32::from_reader(reader, e)?;
let name_offset = u32::from_reader(reader, e)?;
let name_size = u32::from_reader(reader, e)?;
let version = u32::from_reader(reader, e)?;
if version > 3 {
return Err(io::Error::new(io::ErrorKind::InvalidData, "Unsupported REL version"));
}
let bss_size = u32::from_reader(reader, e)?;
let rel_offset = u32::from_reader(reader, e)?;
let imp_offset = u32::from_reader(reader, e)?;
let imp_size = u32::from_reader(reader, e)?;
let prolog_section = u8::from_reader(reader, e)?;
let epilog_section = u8::from_reader(reader, e)?;
let unresolved_section = u8::from_reader(reader, e)?;
let bss_section = u8::from_reader(reader, e)?;
if bss_section != 0 {
return Err(io::Error::new(io::ErrorKind::InvalidData, "Expected bss_section == 0"));
}
let prolog_offset = u32::from_reader(reader, e)?;
let epilog_offset = u32::from_reader(reader, e)?;
let unresolved_offset = u32::from_reader(reader, e)?;
let align = if version >= 2 { Some(u32::from_reader(reader, e)?) } else { None };
let bss_align = if version >= 2 { Some(u32::from_reader(reader, e)?) } else { None };
let fix_size = if version >= 3 { Some(u32::from_reader(reader, e)?) } else { None };
Ok(Self {
module_id,
num_sections,
section_info_offset,
name_offset,
name_size,
version,
bss_size,
rel_offset,
imp_offset,
imp_size,
prolog_section,
epilog_section,
unresolved_section,
prolog_offset,
epilog_offset,
unresolved_offset,
align,
bss_align,
fix_size,
})
}
}
impl ToWriter for RelHeader {
fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized {
self.module_id.to_writer(writer, e)?;
0u32.to_writer(writer, e)?; // next
0u32.to_writer(writer, e)?; // prev
self.num_sections.to_writer(writer, e)?;
self.section_info_offset.to_writer(writer, e)?;
self.name_offset.to_writer(writer, e)?;
self.name_size.to_writer(writer, e)?;
self.version.to_writer(writer, e)?;
self.bss_size.to_writer(writer, e)?;
self.rel_offset.to_writer(writer, e)?;
self.imp_offset.to_writer(writer, e)?;
self.imp_size.to_writer(writer, e)?;
self.prolog_section.to_writer(writer, e)?;
self.epilog_section.to_writer(writer, e)?;
self.unresolved_section.to_writer(writer, e)?;
0u8.to_writer(writer, e)?; // bss_section
self.prolog_offset.to_writer(writer, e)?;
self.epilog_offset.to_writer(writer, e)?;
self.unresolved_offset.to_writer(writer, e)?;
if let Some(align) = self.align {
align.to_writer(writer, e)?;
}
if let Some(bss_align) = self.bss_align {
bss_align.to_writer(writer, e)?;
}
if let Some(fix_size) = self.fix_size {
fix_size.to_writer(writer, e)?;
}
Ok(())
}
fn write_size(&self) -> usize {
const V1_SIZE: usize = struct_size([
u32::STATIC_SIZE, // module_id
u32::STATIC_SIZE, // next
u32::STATIC_SIZE, // prev
u32::STATIC_SIZE, // num_sections
u32::STATIC_SIZE, // section_info_offset
u32::STATIC_SIZE, // name_offset
u32::STATIC_SIZE, // name_size
u32::STATIC_SIZE, // version
u32::STATIC_SIZE, // bss_size
u32::STATIC_SIZE, // rel_offset
u32::STATIC_SIZE, // imp_offset
u32::STATIC_SIZE, // imp_size
u8::STATIC_SIZE, // prolog_section
u8::STATIC_SIZE, // epilog_section
u8::STATIC_SIZE, // unresolved_section
u8::STATIC_SIZE, // bss_section
u32::STATIC_SIZE, // prolog_offset
u32::STATIC_SIZE, // epilog_offset
u32::STATIC_SIZE, // unresolved_offset
]);
const V2_SIZE: usize = V1_SIZE
+ struct_size([
u32::STATIC_SIZE, // align
u32::STATIC_SIZE, // bss_align
]);
const V3_SIZE: usize = V2_SIZE + u32::STATIC_SIZE; // fix_size
match self.version {
1 => V1_SIZE,
2 => V2_SIZE,
3 => V3_SIZE,
_ => panic!("Unsupported REL version {}", self.version),
}
}
}
#[derive(Copy, Clone, Debug)] #[derive(Copy, Clone, Debug)]
struct RelImport { struct RelImport {
module_id: u32, module_id: u32,
offset: u32, offset: u32,
} }
#[binrw] impl FromReader for RelImport {
type Args = ();
const STATIC_SIZE: usize = struct_size([
u32::STATIC_SIZE, // module_id
u32::STATIC_SIZE, // offset
]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
Ok(Self { module_id: u32::from_reader(reader, e)?, offset: u32::from_reader(reader, e)? })
}
}
impl ToWriter for RelImport {
fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized {
self.module_id.to_writer(writer, e)?;
self.offset.to_writer(writer, e)?;
Ok(())
}
fn write_size(&self) -> usize { Self::STATIC_SIZE }
}
#[derive(Copy, Clone, Debug)] #[derive(Copy, Clone, Debug)]
pub struct RelSectionHeader { pub struct RelSectionHeader {
offset_and_flags: u32, offset_and_flags: u32,
size: u32, size: u32,
} }
impl FromReader for RelSectionHeader {
type Args = ();
const STATIC_SIZE: usize = struct_size([
u32::STATIC_SIZE, // offset_and_flags
u32::STATIC_SIZE, // size
]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
Ok(Self {
offset_and_flags: u32::from_reader(reader, e)?,
size: u32::from_reader(reader, e)?,
})
}
}
impl ToWriter for RelSectionHeader {
fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized {
self.offset_and_flags.to_writer(writer, e)?;
self.size.to_writer(writer, e)?;
Ok(())
}
fn write_size(&self) -> usize { Self::STATIC_SIZE }
}
impl RelSectionHeader { impl RelSectionHeader {
fn new(offset: u32, size: u32, exec: bool) -> Self { fn new(offset: u32, size: u32, exec: bool) -> Self {
Self { offset_and_flags: offset | (exec as u32), size } Self { offset_and_flags: offset | (exec as u32), size }
@ -127,7 +306,6 @@ impl RelSectionHeader {
pub fn exec(&self) -> bool { self.offset_and_flags & 1 != 0 } pub fn exec(&self) -> bool { self.offset_and_flags & 1 != 0 }
} }
#[binrw]
#[derive(Copy, Clone, Debug)] #[derive(Copy, Clone, Debug)]
struct RelRelocRaw { struct RelRelocRaw {
offset: u16, offset: u16,
@ -136,25 +314,64 @@ struct RelRelocRaw {
addend: u32, addend: u32,
} }
pub fn process_rel_header<R: Read + Seek>(reader: &mut R) -> Result<RelHeader> { impl FromReader for RelRelocRaw {
RelHeader::read_be(reader).context("Failed to read REL header") type Args = ();
const STATIC_SIZE: usize = struct_size([
u16::STATIC_SIZE, // offset
u8::STATIC_SIZE, // kind
u8::STATIC_SIZE, // section
u32::STATIC_SIZE, // addend
]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
Ok(Self {
offset: u16::from_reader(reader, e)?,
kind: u8::from_reader(reader, e)?,
section: u8::from_reader(reader, e)?,
addend: u32::from_reader(reader, e)?,
})
}
} }
pub fn process_rel_sections<R: Read + Seek>( impl ToWriter for RelRelocRaw {
fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized {
self.offset.to_writer(writer, e)?;
self.kind.to_writer(writer, e)?;
self.section.to_writer(writer, e)?;
self.addend.to_writer(writer, e)?;
Ok(())
}
fn write_size(&self) -> usize { Self::STATIC_SIZE }
}
pub fn process_rel_header<R>(reader: &mut R) -> Result<RelHeader>
where R: Read + Seek + ?Sized {
RelHeader::from_reader(reader, Endian::Big).context("Failed to read REL header")
}
pub fn process_rel_sections<R>(
reader: &mut R, reader: &mut R,
header: &RelHeader, header: &RelHeader,
) -> Result<Vec<RelSectionHeader>> { ) -> Result<Vec<RelSectionHeader>>
where
R: Read + Seek + ?Sized,
{
let mut sections = Vec::with_capacity(header.num_sections as usize); let mut sections = Vec::with_capacity(header.num_sections as usize);
reader.seek(SeekFrom::Start(header.section_info_offset as u64))?; reader.seek(SeekFrom::Start(header.section_info_offset as u64))?;
for idx in 0..header.num_sections { for idx in 0..header.num_sections {
let section = RelSectionHeader::read_be(reader) let section = RelSectionHeader::from_reader(reader, Endian::Big)
.with_context(|| format!("Failed to read REL section header {}", idx))?; .with_context(|| format!("Failed to read REL section header {}", idx))?;
sections.push(section); sections.push(section);
} }
Ok(sections) Ok(sections)
} }
pub fn process_rel<R: Read + Seek>(reader: &mut R, name: &str) -> Result<(RelHeader, ObjInfo)> { pub fn process_rel<R>(reader: &mut R, name: &str) -> Result<(RelHeader, ObjInfo)>
where R: Read + Seek + ?Sized {
let header = process_rel_header(reader)?; let header = process_rel_header(reader)?;
let mut sections = Vec::with_capacity(header.num_sections as usize); let mut sections = Vec::with_capacity(header.num_sections as usize);
let mut text_section = None; let mut text_section = None;
@ -250,7 +467,7 @@ pub fn process_rel<R: Read + Seek>(reader: &mut R, name: &str) -> Result<(RelHea
let imp_end = (header.imp_offset + header.imp_size) as u64; let imp_end = (header.imp_offset + header.imp_size) as u64;
reader.seek(SeekFrom::Start(header.imp_offset as u64))?; reader.seek(SeekFrom::Start(header.imp_offset as u64))?;
while reader.stream_position()? < imp_end { while reader.stream_position()? < imp_end {
let import = RelImport::read_be(reader)?; let import = RelImport::from_reader(reader, Endian::Big)?;
if imp_idx == 0 { if imp_idx == 0 {
ensure!( ensure!(
@ -278,7 +495,7 @@ pub fn process_rel<R: Read + Seek>(reader: &mut R, name: &str) -> Result<(RelHea
let mut address = 0u32; let mut address = 0u32;
let mut section = u8::MAX; let mut section = u8::MAX;
loop { loop {
let reloc = RelRelocRaw::read_be(reader)?; let reloc = RelRelocRaw::from_reader(reader, Endian::Big)?;
let kind = match reloc.kind as u32 { let kind = match reloc.kind as u32 {
elf::R_PPC_NONE => continue, elf::R_PPC_NONE => continue,
elf::R_PPC_ADDR32 | elf::R_PPC_UADDR32 => ObjRelocKind::Absolute, elf::R_PPC_ADDR32 | elf::R_PPC_UADDR32 => ObjRelocKind::Absolute,
@ -437,12 +654,15 @@ pub fn should_write_section(section: &object::Section) -> bool {
section.kind() != object::SectionKind::UninitializedData section.kind() != object::SectionKind::UninitializedData
} }
pub fn write_rel<W: Write>( pub fn write_rel<W>(
w: &mut W, w: &mut W,
info: &RelWriteInfo, info: &RelWriteInfo,
file: &object::File, file: &object::File,
mut relocations: Vec<RelReloc>, mut relocations: Vec<RelReloc>,
) -> Result<()> { ) -> Result<()>
where
W: Write + Seek + ?Sized,
{
relocations.sort_by(|a, b| { relocations.sort_by(|a, b| {
if a.module_id == 0 { if a.module_id == 0 {
if b.module_id == 0 { if b.module_id == 0 {
@ -537,12 +757,7 @@ pub fn write_rel<W: Write>(
let mut header = RelHeader { let mut header = RelHeader {
module_id: info.module_id, module_id: info.module_id,
num_sections, num_sections,
section_info_offset: match info.version { section_info_offset: 0, // Calculated below
1 => 0x40,
2 => 0x48,
3 => 0x4C,
_ => bail!("Unsupported REL version {}", info.version),
},
name_offset: info.name_offset.unwrap_or(0), name_offset: info.name_offset.unwrap_or(0),
name_size: info.name_size.unwrap_or(0), name_size: info.name_size.unwrap_or(0),
version: info.version, version: info.version,
@ -560,8 +775,9 @@ pub fn write_rel<W: Write>(
bss_align: if info.version >= 2 { Some(bss_align) } else { None }, bss_align: if info.version >= 2 { Some(bss_align) } else { None },
fix_size: None, fix_size: None,
}; };
let mut offset = header.section_info_offset; let mut offset = header.write_size() as u32;
offset += num_sections * 8; header.section_info_offset = offset;
offset += num_sections * RelSectionHeader::STATIC_SIZE as u32;
let section_data_offset = offset; let section_data_offset = offset;
for (idx, section) in file.sections().filter(is_permitted_section).enumerate() { for (idx, section) in file.sections().filter(is_permitted_section).enumerate() {
if !should_write_section(&section) { if !should_write_section(&section) {
@ -573,7 +789,7 @@ pub fn write_rel<W: Write>(
} }
header.imp_offset = offset; header.imp_offset = offset;
let imp_count = relocations.iter().map(|r| r.module_id).dedup().count(); let imp_count = relocations.iter().map(|r| r.module_id).dedup().count();
header.imp_size = imp_count as u32 * 8; header.imp_size = imp_count as u32 * RelImport::STATIC_SIZE as u32;
offset += header.imp_size; offset += header.imp_size;
header.rel_offset = offset; header.rel_offset = offset;
@ -673,15 +889,14 @@ pub fn write_rel<W: Write>(
} }
} }
let mut w = NoSeek::new(w); header.to_writer(w, Endian::Big)?;
header.write_be(&mut w)?;
ensure!(w.stream_position()? as u32 == header.section_info_offset); ensure!(w.stream_position()? as u32 == header.section_info_offset);
let mut current_data_offset = section_data_offset; let mut current_data_offset = section_data_offset;
let mut permitted_section_idx = 0; let mut permitted_section_idx = 0;
for section_index in 0..num_sections { for section_index in 0..num_sections {
let Ok(section) = file.section_by_index(object::SectionIndex(section_index as usize)) let Ok(section) = file.section_by_index(object::SectionIndex(section_index as usize))
else { else {
RelSectionHeader::new(0, 0, false).write_be(&mut w)?; RelSectionHeader::new(0, 0, false).to_writer(w, Endian::Big)?;
continue; continue;
}; };
if is_permitted_section(&section) { if is_permitted_section(&section) {
@ -697,10 +912,10 @@ pub fn write_rel<W: Write>(
section.size() as u32, section.size() as u32,
section.kind() == object::SectionKind::Text, section.kind() == object::SectionKind::Text,
) )
.write_be(&mut w)?; .to_writer(w, Endian::Big)?;
permitted_section_idx += 1; permitted_section_idx += 1;
} else { } else {
RelSectionHeader::new(0, 0, false).write_be(&mut w)?; RelSectionHeader::new(0, 0, false).to_writer(w, Endian::Big)?;
} }
} }
ensure!(w.stream_position()? as u32 == section_data_offset); ensure!(w.stream_position()? as u32 == section_data_offset);
@ -730,11 +945,11 @@ pub fn write_rel<W: Write>(
} }
ensure!(w.stream_position()? as u32 == header.imp_offset); ensure!(w.stream_position()? as u32 == header.imp_offset);
for entry in imp_entries { for entry in imp_entries {
entry.write_be(&mut w)?; entry.to_writer(w, Endian::Big)?;
} }
ensure!(w.stream_position()? as u32 == header.rel_offset); ensure!(w.stream_position()? as u32 == header.rel_offset);
for reloc in raw_relocations { for reloc in raw_relocations {
reloc.write_be(&mut w)?; reloc.to_writer(w, Endian::Big)?;
} }
ensure!(w.stream_position()? as u32 == offset); ensure!(w.stream_position()? as u32 == offset);
Ok(()) Ok(())

461
src/util/rso.rs
View File

@ -1,7 +1,9 @@
use std::io::{Read, Seek, SeekFrom}; use std::{
io,
io::{Read, Seek, SeekFrom, Write},
};
use anyhow::{anyhow, ensure, Result}; use anyhow::{anyhow, ensure, Result};
use byteorder::{BigEndian, ReadBytesExt};
use cwdemangle::{demangle, DemangleOptions}; use cwdemangle::{demangle, DemangleOptions};
use crate::{ use crate::{
@ -9,7 +11,10 @@ use crate::{
ObjArchitecture, ObjInfo, ObjKind, ObjSection, ObjSectionKind, ObjSymbol, ObjSymbolFlagSet, ObjArchitecture, ObjInfo, ObjKind, ObjSection, ObjSectionKind, ObjSymbol, ObjSymbolFlagSet,
ObjSymbolFlags, ObjSymbolKind, ObjSymbolFlags, ObjSymbolKind,
}, },
util::file::{read_c_string, read_string}, util::{
file::{read_c_string, read_string},
reader::{struct_size, Endian, FromReader, ToWriter, DYNAMIC_SIZE},
},
}; };
/// For RSO references to the DOL, the sections are hardcoded. /// For RSO references to the DOL, the sections are hardcoded.
@ -34,46 +39,348 @@ pub const DOL_SECTION_ETI: u32 = 241;
/// ABS symbol section index. /// ABS symbol section index.
pub const DOL_SECTION_ABS: u32 = 65521; pub const DOL_SECTION_ABS: u32 = 65521;
pub fn process_rso<R: Read + Seek>(reader: &mut R) -> Result<ObjInfo> { pub struct RsoHeader {
ensure!(reader.read_u32::<BigEndian>()? == 0, "Expected 'next' to be 0"); // Pointer to the next module, forming a linked list. Always 0, filled in at runtime.
ensure!(reader.read_u32::<BigEndian>()? == 0, "Expected 'prev' to be 0"); // pub next: u32,
let num_sections = reader.read_u32::<BigEndian>()?; // Pointer to the previous module, forming a linked list. Always 0, filled in at runtime.
let section_info_offset = reader.read_u32::<BigEndian>()?; // pub prev: u32,
let name_offset = reader.read_u32::<BigEndian>()?; /// Number of sections contained in the file.
let name_size = reader.read_u32::<BigEndian>()?; pub num_sections: u32,
let version = reader.read_u32::<BigEndian>()?; /// Offset to the section info table. Always 0x58.
ensure!(version == 1, "Unsupported RSO version {}", version); pub section_info_offset: u32,
let bss_size = reader.read_u32::<BigEndian>()?; /// Offset to the module name. Can be 0, in which case this module doesn't contain a name string.
let prolog_section = reader.read_u8()?; pub name_offset: u32,
let epilog_section = reader.read_u8()?; /// Size of the module name string.
let unresolved_section = reader.read_u8()?; pub name_size: u32,
ensure!(reader.read_u8()? == 0, "Expected 'bssSection' to be 0"); /// Module version number. Always 1.
let prolog_offset = reader.read_u32::<BigEndian>()?; pub version: u32,
let epilog_offset = reader.read_u32::<BigEndian>()?; /// Size of the BSS section, which is allocated at runtime (not included in the file).
let unresolved_offset = reader.read_u32::<BigEndian>()?; pub bss_size: u32,
let _internal_rel_offset = reader.read_u32::<BigEndian>()?; /// Section index of the prolog function, which is called when the module is linked.
let _internal_rel_size = reader.read_u32::<BigEndian>()?; /// 0 if this module doesn't contain a prolog function.
let external_rel_offset = reader.read_u32::<BigEndian>()?; pub prolog_section: u8,
let external_rel_size = reader.read_u32::<BigEndian>()?; /// Section index of the epilog function, which is called when the module is unlinked.
let export_table_offset = reader.read_u32::<BigEndian>()?; /// 0 if this module doesn't contain an epilog function.
let export_table_size = reader.read_u32::<BigEndian>()?; pub epilog_section: u8,
let export_table_name_offset = reader.read_u32::<BigEndian>()?; /// Section index of the unresolved function, which is called if the module attempts to call
let import_table_offset = reader.read_u32::<BigEndian>()?; /// an unlinked function. 0 if this module doesn't contain an unresolved function.
let import_table_size = reader.read_u32::<BigEndian>()?; pub unresolved_section: u8,
let import_table_name_offset = reader.read_u32::<BigEndian>()?; // Section index of the BSS section. Always 0, filled in at runtime.
// pub bss_section: u8,
/// Section-relative offset of the prolog function.
/// 0 if this module doesn't contain a prolog function.
pub prolog_offset: u32,
/// Section-relative offset of the epilog function.
/// 0 if this module doesn't contain an epilog function.
pub epilog_offset: u32,
/// Section-relative offset of the unresolved function.
/// 0 if this module doesn't contain an unresolved function.
pub unresolved_offset: u32,
/// Absolute offset of the relocation table for internal relocations
/// (relocations for symbols within this module).
pub internal_rel_offset: u32,
/// Size of the relocation table for internal relocations.
pub internal_rel_size: u32,
/// Absolute offset of the relocation table for external relocations
/// (relocations for symbols within other modules).
pub external_rel_offset: u32,
/// Size of the relocation table for external relocations.
pub external_rel_size: u32,
/// Absolute offset of the symbol table for exports (symbols within this module).
pub export_table_offset: u32,
/// Size of the symbol table for exports.
pub export_table_size: u32,
/// Absolute offset of the string table containing export symbol names.
pub export_table_name_offset: u32,
/// Absolute offset of the symbol table for imports
/// (symbols within other modules, referenced by this one).
pub import_table_offset: u32,
/// Size of the symbol table for imports.
pub import_table_size: u32,
/// Absolute offset of the string table containing import symbol names.
pub import_table_name_offset: u32,
}
let mut sections = Vec::with_capacity(num_sections as usize); impl FromReader for RsoHeader {
reader.seek(SeekFrom::Start(section_info_offset as u64))?; type Args = ();
const STATIC_SIZE: usize = struct_size([
u32::STATIC_SIZE, // next
u32::STATIC_SIZE, // prev
u32::STATIC_SIZE, // num_sections
u32::STATIC_SIZE, // section_info_offset
u32::STATIC_SIZE, // name_offset
u32::STATIC_SIZE, // name_size
u32::STATIC_SIZE, // version
u32::STATIC_SIZE, // bss_size
u8::STATIC_SIZE, // prolog_section
u8::STATIC_SIZE, // epilog_section
u8::STATIC_SIZE, // unresolved_section
u8::STATIC_SIZE, // bss_section
u32::STATIC_SIZE, // prolog_offset
u32::STATIC_SIZE, // epilog_offset
u32::STATIC_SIZE, // unresolved_offset
u32::STATIC_SIZE, // internal_rel_offset
u32::STATIC_SIZE, // internal_rel_size
u32::STATIC_SIZE, // external_rel_offset
u32::STATIC_SIZE, // external_rel_size
u32::STATIC_SIZE, // export_table_offset
u32::STATIC_SIZE, // export_table_size
u32::STATIC_SIZE, // export_table_name_offset
u32::STATIC_SIZE, // import_table_offset
u32::STATIC_SIZE, // import_table_size
u32::STATIC_SIZE, // import_table_name_offset
]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
let next = u32::from_reader(reader, e)?;
if next != 0 {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Expected 'next' to be 0, got {:#X}", next),
));
}
let prev = u32::from_reader(reader, e)?;
if prev != 0 {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Expected 'prev' to be 0, got {:#X}", prev),
));
}
let num_sections = u32::from_reader(reader, e)?;
let section_info_offset = u32::from_reader(reader, e)?;
let name_offset = u32::from_reader(reader, e)?;
let name_size = u32::from_reader(reader, e)?;
let version = u32::from_reader(reader, e)?;
let bss_size = u32::from_reader(reader, e)?;
let prolog_section = u8::from_reader(reader, e)?;
let epilog_section = u8::from_reader(reader, e)?;
let unresolved_section = u8::from_reader(reader, e)?;
let bss_section = u8::from_reader(reader, e)?;
if bss_section != 0 {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("Expected 'bssSection' to be 0, got {:#X}", bss_section),
));
}
let prolog_offset = u32::from_reader(reader, e)?;
let epilog_offset = u32::from_reader(reader, e)?;
let unresolved_offset = u32::from_reader(reader, e)?;
let internal_rel_offset = u32::from_reader(reader, e)?;
let internal_rel_size = u32::from_reader(reader, e)?;
let external_rel_offset = u32::from_reader(reader, e)?;
let external_rel_size = u32::from_reader(reader, e)?;
let export_table_offset = u32::from_reader(reader, e)?;
let export_table_size = u32::from_reader(reader, e)?;
let export_table_name_offset = u32::from_reader(reader, e)?;
let import_table_offset = u32::from_reader(reader, e)?;
let import_table_size = u32::from_reader(reader, e)?;
let import_table_name_offset = u32::from_reader(reader, e)?;
Ok(Self {
num_sections,
section_info_offset,
name_offset,
name_size,
version,
bss_size,
prolog_section,
epilog_section,
unresolved_section,
prolog_offset,
epilog_offset,
unresolved_offset,
internal_rel_offset,
internal_rel_size,
external_rel_offset,
external_rel_size,
export_table_offset,
export_table_size,
export_table_name_offset,
import_table_offset,
import_table_size,
import_table_name_offset,
})
}
}
#[derive(Copy, Clone, Debug)]
pub struct RsoSectionHeader {
/// Absolute offset of the section.
/// The lowest bit is set if the section is executable.
offset_and_flags: u32,
/// Size of the section.
size: u32,
}
impl FromReader for RsoSectionHeader {
type Args = ();
const STATIC_SIZE: usize = struct_size([
u32::STATIC_SIZE, // offset
u32::STATIC_SIZE, // size
]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
Ok(Self {
offset_and_flags: u32::from_reader(reader, e)?,
size: u32::from_reader(reader, e)?,
})
}
}
impl ToWriter for RsoSectionHeader {
fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized {
self.offset_and_flags.to_writer(writer, e)?;
self.size.to_writer(writer, e)?;
Ok(())
}
fn write_size(&self) -> usize { Self::STATIC_SIZE }
}
impl RsoSectionHeader {
#[allow(dead_code)]
fn new(offset: u32, size: u32, exec: bool) -> Self {
Self { offset_and_flags: offset | (exec as u32), size }
}
pub fn offset(&self) -> u32 { self.offset_and_flags & !1 }
pub fn size(&self) -> u32 { self.size }
pub fn exec(&self) -> bool { self.offset_and_flags & 1 != 0 }
}
struct RsoRelocation {
/// Absolute offset of this relocation (relative to the start of the RSO file).
offset: u32,
/// For internal relocations, this is the section index of the symbol being patched to.
/// For external relocations, this is the index of the symbol within the import symbol table.
/// The lowest 8 bits are the relocation type.
id_and_type: u32,
/// For internal relocations, this is the section-relative offset of the target symbol.
/// For external relocations, this is unused and always 0 (the offset is calculated using the
/// import symbol table).
target_offset: u32,
}
impl FromReader for RsoRelocation {
type Args = ();
const STATIC_SIZE: usize = struct_size([
u32::STATIC_SIZE, // offset
u32::STATIC_SIZE, // id_and_type
u32::STATIC_SIZE, // sym_offset
]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
Ok(Self {
offset: u32::from_reader(reader, e)?,
id_and_type: u32::from_reader(reader, e)?,
target_offset: u32::from_reader(reader, e)?,
})
}
}
impl ToWriter for RsoRelocation {
fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized {
self.offset.to_writer(writer, e)?;
self.id_and_type.to_writer(writer, e)?;
self.target_offset.to_writer(writer, e)?;
Ok(())
}
fn write_size(&self) -> usize { Self::STATIC_SIZE }
}
impl RsoRelocation {
#[allow(dead_code)]
pub fn new(offset: u32, id: u32, rel_type: u8, sym_offset: u32) -> Self {
Self { offset, id_and_type: (id << 8) | rel_type as u32, target_offset: sym_offset }
}
pub fn offset(&self) -> u32 { self.offset }
pub fn id(&self) -> u32 { (self.id_and_type & 0xFFFFFF00) >> 8 }
pub fn rel_type(&self) -> u8 { (self.id_and_type & 0xFF) as u8 }
pub fn sym_offset(&self) -> u32 { self.target_offset }
}
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
enum RsoSymbolKind {
Import,
Export,
}
struct RsoSymbol {
/// Relative offset into the name table pointed to in the header,
/// which points to the name of this symbol.
name_offset: u32,
/// The section-relative offset to the symbol. This is always 0 for imports.
offset: u32,
/// For exports, index of the section that contains this symbol.
/// For imports, appears to be an offset?
section_index: u32,
/// A hash of the symbol name. Only present for exports.
hash: Option<u32>,
}
impl FromReader for RsoSymbol {
type Args = RsoSymbolKind;
const STATIC_SIZE: usize = DYNAMIC_SIZE;
fn from_reader_args<R>(reader: &mut R, e: Endian, args: Self::Args) -> io::Result<Self>
where R: Read + Seek + ?Sized {
Ok(Self {
name_offset: u32::from_reader(reader, e)?,
offset: u32::from_reader(reader, e)?,
section_index: u32::from_reader(reader, e)?,
hash: if args == RsoSymbolKind::Export {
Some(u32::from_reader(reader, e)?)
} else {
None
},
})
}
}
impl ToWriter for RsoSymbol {
fn to_writer<W>(&self, writer: &mut W, e: Endian) -> io::Result<()>
where W: Write + ?Sized {
self.name_offset.to_writer(writer, e)?;
self.offset.to_writer(writer, e)?;
self.section_index.to_writer(writer, e)?;
if let Some(hash) = self.hash {
hash.to_writer(writer, e)?;
}
Ok(())
}
fn write_size(&self) -> usize { Self::STATIC_SIZE }
}
pub fn process_rso<R>(reader: &mut R) -> Result<ObjInfo>
where R: Read + Seek + ?Sized {
let header = RsoHeader::from_reader(reader, Endian::Big)?;
let mut sections = Vec::with_capacity(header.num_sections as usize);
reader.seek(SeekFrom::Start(header.section_info_offset as u64))?;
let mut total_bss_size = 0; let mut total_bss_size = 0;
for idx in 0..num_sections { for idx in 0..header.num_sections {
let offset = reader.read_u32::<BigEndian>()?; let section = RsoSectionHeader::from_reader(reader, Endian::Big)?;
let size = reader.read_u32::<BigEndian>()?; let offset = section.offset();
log::debug!("Section {}: offset {:#X}, size {:#X}", idx, offset, size); let size = section.size();
if size == 0 { if size == 0 {
continue; continue;
} }
let exec = (offset & 1) == 1;
let offset = offset & !3;
let data = if offset == 0 { let data = if offset == 0 {
vec![] vec![]
@ -92,7 +399,7 @@ pub fn process_rso<R: Read + Seek>(reader: &mut R) -> Result<ObjInfo> {
name: format!(".section{}", idx), name: format!(".section{}", idx),
kind: if offset == 0 { kind: if offset == 0 {
ObjSectionKind::Bss ObjSectionKind::Bss
} else if exec { } else if section.exec() {
ObjSectionKind::Code ObjSectionKind::Code
} else { } else {
ObjSectionKind::Data ObjSectionKind::Data
@ -113,10 +420,10 @@ pub fn process_rso<R: Read + Seek>(reader: &mut R) -> Result<ObjInfo> {
} }
} }
ensure!( ensure!(
total_bss_size == bss_size, total_bss_size == header.bss_size,
"Mismatched BSS size: {:#X} != {:#X}", "Mismatched BSS size: {:#X} != {:#X}",
total_bss_size, total_bss_size,
bss_size header.bss_size
); );
let mut symbols = Vec::new(); let mut symbols = Vec::new();
@ -139,34 +446,31 @@ pub fn process_rso<R: Read + Seek>(reader: &mut R) -> Result<ObjInfo> {
} }
Ok(()) Ok(())
}; };
add_symbol(prolog_section, prolog_offset, "_prolog")?; add_symbol(header.prolog_section, header.prolog_offset, "_prolog")?;
add_symbol(epilog_section, epilog_offset, "_epilog")?; add_symbol(header.epilog_section, header.epilog_offset, "_epilog")?;
add_symbol(unresolved_section, unresolved_offset, "_unresolved")?; add_symbol(header.unresolved_section, header.unresolved_offset, "_unresolved")?;
reader.seek(SeekFrom::Start(external_rel_offset as u64))?; reader.seek(SeekFrom::Start(header.external_rel_offset as u64))?;
while reader.stream_position()? < (external_rel_offset + external_rel_size) as u64 { while reader.stream_position()? < (header.external_rel_offset + header.external_rel_size) as u64
let offset = reader.read_u32::<BigEndian>()?; {
let id_and_type = reader.read_u32::<BigEndian>()?; let reloc = RsoRelocation::from_reader(reader, Endian::Big)?;
let id = (id_and_type & 0xFFFFFF00) >> 8;
let rel_type = id_and_type & 0xFF;
let sym_offset = reader.read_u32::<BigEndian>()?;
log::debug!( log::debug!(
"Reloc offset: {:#X}, id: {}, type: {}, sym offset: {:#X}", "Reloc offset: {:#X}, id: {}, type: {}, sym offset: {:#X}",
offset, reloc.offset(),
id, reloc.id(),
rel_type, reloc.rel_type(),
sym_offset reloc.sym_offset()
); );
} }
reader.seek(SeekFrom::Start(export_table_offset as u64))?; reader.seek(SeekFrom::Start(header.export_table_offset as u64))?;
while reader.stream_position()? < (export_table_offset + export_table_size) as u64 { while reader.stream_position()? < (header.export_table_offset + header.export_table_size) as u64
let name_off = reader.read_u32::<BigEndian>()?; {
let name = read_c_string(reader, (export_table_name_offset + name_off) as u64)?; let symbol = RsoSymbol::from_reader_args(reader, Endian::Big, RsoSymbolKind::Export)?;
let sym_off = reader.read_u32::<BigEndian>()?; let name =
let section_idx = reader.read_u32::<BigEndian>()?; read_c_string(reader, (header.export_table_name_offset + symbol.name_offset) as u64)?;
let hash_n = reader.read_u32::<BigEndian>()?;
let calc = symbol_hash(&name); let calc = symbol_hash(&name);
let hash_n = symbol.hash.unwrap_or_default();
ensure!( ensure!(
hash_n == calc, hash_n == calc,
"Mismatched calculated hash for symbol {}: {:#X} != {:#X}", "Mismatched calculated hash for symbol {}: {:#X} != {:#X}",
@ -178,37 +482,42 @@ pub fn process_rso<R: Read + Seek>(reader: &mut R) -> Result<ObjInfo> {
let section = sections let section = sections
.iter() .iter()
.enumerate() .enumerate()
.find(|&(_, section)| section.elf_index == section_idx as usize) .find(|&(_, section)| section.elf_index == symbol.section_index as usize)
.map(|(idx, _)| idx) .map(|(idx, _)| idx)
// HACK: selfiles won't have any sections // HACK: selfiles won't have any sections
.unwrap_or(section_idx as usize); .unwrap_or(symbol.section_index as usize);
log::debug!( log::debug!(
"Export: {}, sym off: {:#X}, section: {}, ELF hash: {:#X}", "Export: {}, sym off: {:#X}, section: {}, ELF hash: {:#X}",
demangled_name.as_deref().unwrap_or(&name), demangled_name.as_deref().unwrap_or(&name),
sym_off, symbol.offset,
section_idx, symbol.section_index,
hash_n hash_n
); );
symbols.push(ObjSymbol { symbols.push(ObjSymbol {
name, name,
demangled_name, demangled_name,
address: sym_off as u64, address: symbol.offset as u64,
section: Some(section), section: Some(section),
..Default::default() ..Default::default()
}); });
} }
reader.seek(SeekFrom::Start(import_table_offset as u64))?; reader.seek(SeekFrom::Start(header.import_table_offset as u64))?;
while reader.stream_position()? < (import_table_offset + import_table_size) as u64 { while reader.stream_position()? < (header.import_table_offset + header.import_table_size) as u64
let name_off = reader.read_u32::<BigEndian>()?; {
let name = read_c_string(reader, (import_table_name_offset + name_off) as u64)?; let symbol = RsoSymbol::from_reader_args(reader, Endian::Big, RsoSymbolKind::Import)?;
let sym_off = reader.read_u32::<BigEndian>()?; let name =
let section_idx = reader.read_u32::<BigEndian>()?; read_c_string(reader, (header.import_table_name_offset + symbol.name_offset) as u64)?;
log::debug!("Import: {}, sym off: {}, section: {}", name, sym_off, section_idx); log::debug!(
"Import: {}, sym off: {}, section: {}",
name,
symbol.offset,
symbol.section_index
);
} }
let name = match name_offset { let name = match header.name_offset {
0 => String::new(), 0 => String::new(),
_ => read_string(reader, name_offset as u64, name_size as usize)?, _ => read_string(reader, header.name_offset as u64, header.name_size as usize)?,
}; };
let obj = ObjInfo::new(ObjKind::Relocatable, ObjArchitecture::PowerPc, name, symbols, sections); let obj = ObjInfo::new(ObjKind::Relocatable, ObjArchitecture::PowerPc, name, symbols, sections);

6
src/util/signatures.rs
View File

@ -246,10 +246,8 @@ pub fn compare_signature(existing: &mut FunctionSignature, new: &FunctionSignatu
Ok(()) Ok(())
} }
pub fn generate_signature<P: AsRef<Path>>( pub fn generate_signature<P>(path: P, symbol_name: &str) -> Result<Option<FunctionSignature>>
path: P, where P: AsRef<Path> {
symbol_name: &str,
) -> Result<Option<FunctionSignature>> {
let mut out_symbols: Vec<OutSymbol> = Vec::new(); let mut out_symbols: Vec<OutSymbol> = Vec::new();
let mut out_relocs: Vec<OutReloc> = Vec::new(); let mut out_relocs: Vec<OutReloc> = Vec::new();
let mut symbol_map: BTreeMap<usize, usize> = BTreeMap::new(); let mut symbol_map: BTreeMap<usize, usize> = BTreeMap::new();

128
src/util/take_seek.rs Normal file
View File

@ -0,0 +1,128 @@
// MIT License
//
// Copyright (c) jam1garner and other contributors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// Source: https://github.com/jam1garner/binrw/blob/919c395316b9e971bdccb5547272098f20702c5b/binrw/src/io/take_seek.rs
//! Types for seekable reader adapters which limit the number of bytes read from
//! the underlying reader.
use std::io::{Read, Result, Seek, SeekFrom};
/// Read adapter which limits the bytes read from an underlying reader, with
/// seek support.
///
/// This struct is generally created by importing the [`TakeSeekExt`] extension
/// and calling [`take_seek`] on a reader.
///
/// [`take_seek`]: TakeSeekExt::take_seek
#[derive(Debug)]
pub struct TakeSeek<T> {
inner: T,
pos: u64,
end: u64,
}
impl<T> TakeSeek<T> {
/// Gets a reference to the underlying reader.
pub fn get_ref(&self) -> &T { &self.inner }
/// Gets a mutable reference to the underlying reader.
///
/// Care should be taken to avoid modifying the internal I/O state of the
/// underlying reader as doing so may corrupt the internal limit of this
/// `TakeSeek`.
pub fn get_mut(&mut self) -> &mut T { &mut self.inner }
/// Consumes this wrapper, returning the wrapped value.
pub fn into_inner(self) -> T { self.inner }
/// Returns the number of bytes that can be read before this instance will
/// return EOF.
///
/// # Note
///
/// This instance may reach EOF after reading fewer bytes than indicated by
/// this method if the underlying [`Read`] instance reaches EOF.
pub fn limit(&self) -> u64 { self.end.saturating_sub(self.pos) }
}
impl<T: Seek> TakeSeek<T> {
/// Sets the number of bytes that can be read before this instance will
/// return EOF. This is the same as constructing a new `TakeSeek` instance,
/// so the amount of bytes read and the previous limit value don’t matter
/// when calling this method.
///
/// # Panics
///
/// Panics if the inner stream returns an error from `stream_position`.
pub fn set_limit(&mut self, limit: u64) {
let pos = self.inner.stream_position().expect("cannot get position for `set_limit`");
self.pos = pos;
self.end = pos + limit;
}
}
impl<T: Read> Read for TakeSeek<T> {
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
let limit = self.limit();
// Don't call into inner reader at all at EOF because it may still block
if limit == 0 {
return Ok(0);
}
// Lint: It is impossible for this cast to truncate because the value
// being cast is the minimum of two values, and one of the value types
// is already `usize`.
#[allow(clippy::cast_possible_truncation)]
let max = (buf.len() as u64).min(limit) as usize;
let n = self.inner.read(&mut buf[0..max])?;
self.pos += n as u64;
Ok(n)
}
}
impl<T: Seek> Seek for TakeSeek<T> {
fn seek(&mut self, pos: SeekFrom) -> Result<u64> {
self.pos = self.inner.seek(pos)?;
Ok(self.pos)
}
fn stream_position(&mut self) -> Result<u64> { Ok(self.pos) }
}
/// An extension trait that implements `take_seek()` for compatible streams.
pub trait TakeSeekExt {
/// Creates an adapter which will read at most `limit` bytes from the
/// wrapped stream.
fn take_seek(self, limit: u64) -> TakeSeek<Self>
where Self: Sized;
}
impl<T: Read + Seek> TakeSeekExt for T {
fn take_seek(mut self, limit: u64) -> TakeSeek<Self>
where Self: Sized {
let pos = self.stream_position().expect("cannot get position for `take_seek`");
TakeSeek { inner: self, pos, end: pos + limit }
}
}

78
src/util/yaz0.rs
View File

@ -1,52 +1,57 @@
// Source: https://github.com/Julgodis/picori/blob/650da9f4fe6050b39b80d5360416591c748058d5/src/yaz0.rs // Source: https://github.com/Julgodis/picori/blob/650da9f4fe6050b39b80d5360416591c748058d5/src/yaz0.rs
// License: MIT // License: MIT
// Modified to use `std::io::Read`/`Seek` and `byteorder` // Modified to use `std::io::Read`/`Seek` and project's FromReader trait.
use std::io::{Read, Seek}; use std::io::{Read, Seek};
use anyhow::{ensure, Result}; use anyhow::{ensure, Result};
use byteorder::{BigEndian, ReadBytesExt};
use crate::util::reader::{skip_bytes, struct_size, Endian, FromReader};
pub const YAZ0_MAGIC: [u8; 4] = *b"Yaz0";
/// Yaz0 header. /// Yaz0 header.
pub struct Header { pub struct Header {
/// Yaz0 magic (0x59617A30).
pub magic: u32,
/// Size of decompressed data. /// Size of decompressed data.
pub decompressed_size: u32, pub decompressed_size: u32,
_reserved0: u32,
_reserved1: u32,
} }
impl Header { impl FromReader for Header {
/// Reads a Yaz0 header from a reader. type Args = ();
pub fn from_binary<D: Read>(input: &mut D) -> Result<Header> {
Ok(Header { const STATIC_SIZE: usize = struct_size([
magic: input.read_u32::<BigEndian>()?, u32::STATIC_SIZE, // magic
decompressed_size: input.read_u32::<BigEndian>()?, u32::STATIC_SIZE, // decompressed_size
_reserved0: input.read_u32::<BigEndian>()?, u32::STATIC_SIZE, // reserved0
_reserved1: input.read_u32::<BigEndian>()?, u32::STATIC_SIZE, // reserved1
}) ]);
fn from_reader_args<R>(reader: &mut R, e: Endian, _args: Self::Args) -> std::io::Result<Self>
where R: Read + Seek + ?Sized {
let magic = <[u8; 4]>::from_reader(reader, e)?;
if magic != YAZ0_MAGIC {
return Err(std::io::Error::new(
std::io::ErrorKind::InvalidData,
format!("Invalid Yaz0 magic: {:?}", magic),
));
} }
let decompressed_size = u32::from_reader(reader, e)?;
/// Checks if the header is valid. skip_bytes::<8, _>(reader)?;
pub fn is_valid(&self) -> bool { self.magic == 0x59617A30 } Ok(Self { decompressed_size })
pub fn decompressed_size(input: &mut impl Read) -> Result<usize> {
let header = Header::from_binary(input)?;
ensure!(header.is_valid(), "Invalid Yaz0 magic");
Ok(header.decompressed_size as usize)
} }
} }
/// Decompresses the data into a new allocated [`Vec`]. Assumes a Yaz0 header followed by /// Decompresses the data into a new allocated [`Vec`]. Assumes a Yaz0 header followed by
/// compressed data. /// compressed data.
pub fn decompress_file<D: Read + Seek>(input: &mut D) -> Result<Vec<u8>> { pub fn decompress_file<R>(input: &mut R) -> Result<Vec<u8>>
let decompressed_size = Header::decompressed_size(input)?; where R: Read + Seek + ?Sized {
decompress(input, decompressed_size) let header = Header::from_reader(input, Endian::Big)?;
decompress(input, header.decompressed_size as usize)
} }
/// Decompresses the data into a new allocated [`Vec`]. `decompressed_size` can be determined /// Decompresses the data into a new allocated [`Vec`]. `decompressed_size` can be determined
/// by looking at the Yaz0 header [`Header`]. /// by looking at the Yaz0 header [`Header`].
pub fn decompress<D: Read + Seek>(input: &mut D, decompressed_size: usize) -> Result<Vec<u8>> { pub fn decompress<R>(input: &mut R, decompressed_size: usize) -> Result<Vec<u8>>
where R: Read + Seek + ?Sized {
let mut output = vec![0; decompressed_size]; let mut output = vec![0; decompressed_size];
decompress_into(input, output.as_mut_slice())?; decompress_into(input, output.as_mut_slice())?;
Ok(output) Ok(output)
@ -54,7 +59,8 @@ pub fn decompress<D: Read + Seek>(input: &mut D, decompressed_size: usize) -> Re
/// Decompresses the data into the given buffer. The buffer must be large /// Decompresses the data into the given buffer. The buffer must be large
/// enough to hold the decompressed data. /// enough to hold the decompressed data.
pub fn decompress_into<D: Read + Seek>(input: &mut D, destination: &mut [u8]) -> Result<()> { pub fn decompress_into<R>(input: &mut R, destination: &mut [u8]) -> Result<()>
where R: Read + Seek + ?Sized {
let decompressed_size = destination.len(); let decompressed_size = destination.len();
let mut dest = 0; let mut dest = 0;
let mut code = 0; let mut code = 0;
@ -62,22 +68,20 @@ pub fn decompress_into<D: Read + Seek>(input: &mut D, destination: &mut [u8]) ->
while dest < decompressed_size { while dest < decompressed_size {
if code_bits == 0 { if code_bits == 0 {
code = input.read_u8()? as u32; code = u8::from_reader(input, Endian::Big)? as u32;
code_bits = 8; code_bits = 8;
} }
if code & 0x80 != 0 { if code & 0x80 != 0 {
let byte = input.read_u8()?; destination[dest] = u8::from_reader(input, Endian::Big)?;
destination[dest] = byte;
dest += 1; dest += 1;
} else { } else {
let byte0 = input.read_u8()?; let bytes = <[u8; 2]>::from_reader(input, Endian::Big)?;
let byte1 = input.read_u8()?; let a = (bytes[0] & 0xf) as usize;
let a = (byte0 & 0xf) as usize; let b = (bytes[0] >> 4) as usize;
let b = (byte0 >> 4) as usize; let offset = (a << 8) | (bytes[1] as usize);
let offset = (a << 8) | (byte1 as usize);
let length = match b { let length = match b {
0 => (input.read_u8()? as usize) + 0x12, 0 => (u8::from_reader(input, Endian::Big)? as usize) + 0x12,
length => length + 2, length => length + 2,
}; };