x86: Support inline data for jumptables

objdiff-core/src/arch/arm.rs

@@ -14,7 +14,7 @@ use crate::{
     arch::Arch,
     diff::{ArmArchVersion, ArmR9Usage, DiffObjConfig, display::InstructionPart},
     obj::{
-        InstructionRef, RelocationFlags, ResolvedInstructionRef, ResolvedRelocation,
+        InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef, ResolvedRelocation,
         ScannedInstruction, SymbolFlag, SymbolFlagSet, SymbolKind,
     },
 };
@@ -183,6 +183,7 @@ impl Arch for ArchArm {
         address: u64,
         code: &[u8],
         section_index: usize,
+        _relocations: &[Relocation],
         diff_config: &DiffObjConfig,
     ) -> Result<Vec<ScannedInstruction>> {
         let start_addr = address as u32;

objdiff-core/src/arch/arm64.rs

@@ -17,7 +17,7 @@ use crate::{
     arch::Arch,
     diff::{DiffObjConfig, display::InstructionPart},
     obj::{
-        InstructionRef, RelocationFlags, ResolvedInstructionRef, ResolvedRelocation,
+        InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef, ResolvedRelocation,
         ScannedInstruction,
     },
 };
@@ -35,6 +35,7 @@ impl Arch for ArchArm64 {
         address: u64,
         code: &[u8],
         _section_index: usize,
+        _relocations: &[Relocation],
         _diff_config: &DiffObjConfig,
     ) -> Result<Vec<ScannedInstruction>> {
         let start_address = address;

objdiff-core/src/arch/mips.rs

@@ -194,6 +194,7 @@ impl Arch for ArchMips {
         address: u64,
         code: &[u8],
         _section_index: usize,
+        _relocations: &[Relocation],
         diff_config: &DiffObjConfig,
     ) -> Result<Vec<ScannedInstruction>> {
         let instruction_flags = self.instruction_flags(diff_config);

objdiff-core/src/arch/mod.rs

@@ -170,6 +170,7 @@ pub trait Arch: Send + Sync + Debug {
         address: u64,
         code: &[u8],
         section_index: usize,
+        relocations: &[Relocation],
         diff_config: &DiffObjConfig,
     ) -> Result<Vec<ScannedInstruction>>;
 
@@ -301,6 +302,7 @@ impl Arch for ArchDummy {
         _address: u64,
         _code: &[u8],
         _section_index: usize,
+        _relocations: &[Relocation],
         _diff_config: &DiffObjConfig,
     ) -> Result<Vec<ScannedInstruction>> {
         Ok(Vec::new())

objdiff-core/src/arch/ppc.rs

@@ -87,6 +87,7 @@ impl Arch for ArchPpc {
         address: u64,
         code: &[u8],
         _section_index: usize,
+        _relocations: &[Relocation],
         _diff_config: &DiffObjConfig,
     ) -> Result<Vec<ScannedInstruction>> {
         ensure!(code.len() & 3 == 0, "Code length must be a multiple of 4");

objdiff-core/src/arch/x86.rs

@@ -1,6 +1,6 @@
 use alloc::{boxed::Box, string::String, vec::Vec};
 
-use anyhow::{Result, anyhow, bail};
+use anyhow::{Context, Result, anyhow, bail};
 use iced_x86::{
     Decoder, DecoderOptions, DecoratorKind, FormatterOutput, FormatterTextKind, GasFormatter,
     Instruction, IntelFormatter, MasmFormatter, NasmFormatter, NumberKind, OpKind, Register,
@@ -10,7 +10,9 @@ use object::{Endian as _, Object as _, ObjectSection as _, pe};
 use crate::{
     arch::Arch,
     diff::{DiffObjConfig, X86Formatter, display::InstructionPart},
-    obj::{InstructionRef, RelocationFlags, ResolvedInstructionRef, ScannedInstruction},
+    obj::{
+        InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef, ScannedInstruction,
+    },
 };
 
 #[derive(Debug)]
@@ -80,18 +82,48 @@ impl ArchX86 {
     }
 }
 
+const DATA_OPCODE: u16 = u16::MAX - 1;
+
 impl Arch for ArchX86 {
     fn scan_instructions(
         &self,
         address: u64,
         code: &[u8],
         _section_index: usize,
+        relocations: &[Relocation],
         _diff_config: &DiffObjConfig,
     ) -> Result<Vec<ScannedInstruction>> {
         let mut out = Vec::with_capacity(code.len() / 2);
         let mut decoder = self.decoder(code, address);
         let mut instruction = Instruction::default();
-        while decoder.can_decode() {
+        let mut reloc_iter = relocations.iter().peekable();
+        'outer: while decoder.can_decode() {
+            let address = decoder.ip();
+            while let Some(reloc) = reloc_iter.peek() {
+                if reloc.address < address {
+                    reloc_iter.next();
+                } else if reloc.address == address {
+                    // If the instruction starts at a relocation, it's inline data
+                    let size = self.reloc_size(reloc.flags).with_context(|| {
+                        format!("Unsupported inline x86 relocation {:?}", reloc.flags)
+                    })?;
+                    if decoder.set_position(decoder.position() + size).is_ok() {
+                        decoder.set_ip(address + size as u64);
+                        out.push(ScannedInstruction {
+                            ins_ref: InstructionRef {
+                                address,
+                                size: size as u8,
+                                opcode: DATA_OPCODE,
+                            },
+                            branch_dest: None,
+                        });
+                        reloc_iter.next();
+                        continue 'outer;
+                    }
+                } else {
+                    break;
+                }
+            }
             decoder.decode_out(&mut instruction);
             let branch_dest = match instruction.op0_kind() {
                 OpKind::NearBranch16 => Some(instruction.near_branch16() as u64),
@@ -101,7 +133,7 @@ impl Arch for ArchX86 {
             };
             out.push(ScannedInstruction {
                 ins_ref: InstructionRef {
-                    address: instruction.ip(),
+                    address,
                     size: instruction.len() as u8,
                     opcode: instruction.mnemonic() as u16,
                 },
@@ -117,6 +149,21 @@ impl Arch for ArchX86 {
         diff_config: &DiffObjConfig,
         cb: &mut dyn FnMut(InstructionPart) -> Result<()>,
     ) -> Result<()> {
+        if resolved.ins_ref.opcode == DATA_OPCODE {
+            let (mnemonic, imm) = match resolved.ins_ref.size {
+                2 => (".word", self.endianness.read_u16_bytes(resolved.code.try_into()?) as u64),
+                4 => (".dword", self.endianness.read_u32_bytes(resolved.code.try_into()?) as u64),
+                _ => bail!("Unsupported x86 inline data size {}", resolved.ins_ref.size),
+            };
+            cb(InstructionPart::opcode(mnemonic, DATA_OPCODE))?;
+            if resolved.relocation.is_some() {
+                cb(InstructionPart::reloc())?;
+            } else {
+                cb(InstructionPart::unsigned(imm))?;
+            }
+            return Ok(());
+        }
+
         let mut decoder = self.decoder(resolved.code, resolved.ins_ref.address);
         let mut formatter = self.formatter(diff_config);
         let mut instruction = Instruction::default();
@@ -406,7 +453,7 @@ mod test {
             0xc7, 0x85, 0x68, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x8b, 0x04, 0x85, 0x00,
             0x00, 0x00, 0x00,
         ];
-        let scanned = arch.scan_instructions(0, &code, 0, &DiffObjConfig::default()).unwrap();
+        let scanned = arch.scan_instructions(0, &code, 0, &[], &DiffObjConfig::default()).unwrap();
         assert_eq!(scanned.len(), 2);
         assert_eq!(scanned[0].ins_ref.address, 0);
         assert_eq!(scanned[0].ins_ref.size, 10);

objdiff-core/src/diff/code.rs

@@ -32,7 +32,13 @@ pub fn no_diff_code(
             symbol.address + symbol.size
         )
     })?;
-    let ops = obj.arch.scan_instructions(symbol.address, data, section_index, diff_config)?;
+    let ops = obj.arch.scan_instructions(
+        symbol.address,
+        data,
+        section_index,
+        &section.relocations,
+        diff_config,
+    )?;
     let mut instruction_rows = Vec::<InstructionDiffRow>::new();
     for i in &ops {
         instruction_rows
@@ -89,12 +95,14 @@ pub fn diff_code(
         left_symbol.address,
         left_data,
         left_section_idx,
+        &left_section.relocations,
         diff_config,
     )?;
     let right_ops = right_obj.arch.scan_instructions(
         right_symbol.address,
         right_data,
         right_section_idx,
+        &right_section.relocations,
         diff_config,
     )?;
     let (mut left_rows, mut right_rows) = diff_instructions(&left_ops, &right_ops)?;

objdiff-core/tests/arch_x86.rs

@@ -55,3 +55,16 @@ fn display_section_ordering() {
         diff::display::display_sections(&obj, &obj_diff, SymbolFilter::None, false, false, false);
     insta::assert_debug_snapshot!(section_display);
 }
+
+#[test]
+#[cfg(feature = "x86")]
+fn read_x86_jumptable() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(include_object!("data/x86/jumptable.o"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+    let symbol_idx = obj.symbols.iter().position(|s| s.name == "?test@@YAHH@Z").unwrap();
+    let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
+    insta::assert_debug_snapshot!(diff.instruction_rows);
+    let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
+    insta::assert_snapshot!(output);
+}

objdiff-core/tests/snapshots/arch_x86__read_x86_jumptable-2.snap

@@ -0,0 +1,569 @@
+---
+source: objdiff-core/tests/arch_x86.rs
+expression: diff.instruction_rows
+---
+[
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 0,
+                size: 4,
+                opcode: 414,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 4,
+                size: 1,
+                opcode: 137,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 5,
+                size: 3,
+                opcode: 93,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 8,
+                size: 2,
+                opcode: 297,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 18,
+                branch_idx: 0,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 10,
+                size: 7,
+                opcode: 308,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 20,
+                branch_idx: 1,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 17,
+                size: 5,
+                opcode: 414,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    20,
+                ],
+                branch_idx: 2,
+            },
+        ),
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 22,
+                size: 1,
+                opcode: 662,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 23,
+                size: 5,
+                opcode: 414,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    21,
+                ],
+                branch_idx: 3,
+            },
+        ),
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 28,
+                size: 1,
+                opcode: 662,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 29,
+                size: 5,
+                opcode: 414,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    22,
+                ],
+                branch_idx: 4,
+            },
+        ),
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 34,
+                size: 1,
+                opcode: 662,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 35,
+                size: 5,
+                opcode: 414,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    23,
+                ],
+                branch_idx: 5,
+            },
+        ),
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 40,
+                size: 1,
+                opcode: 662,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 41,
+                size: 5,
+                opcode: 414,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    24,
+                ],
+                branch_idx: 6,
+            },
+        ),
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 46,
+                size: 1,
+                opcode: 662,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 47,
+                size: 5,
+                opcode: 414,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    25,
+                ],
+                branch_idx: 7,
+            },
+        ),
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 52,
+                size: 1,
+                opcode: 662,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 53,
+                size: 5,
+                opcode: 414,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    26,
+                ],
+                branch_idx: 8,
+            },
+        ),
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 58,
+                size: 1,
+                opcode: 662,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    3,
+                ],
+                branch_idx: 0,
+            },
+        ),
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 59,
+                size: 1,
+                opcode: 465,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 60,
+                size: 4,
+                opcode: 65534,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    4,
+                ],
+                branch_idx: 1,
+            },
+        ),
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 5,
+                branch_idx: 2,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 64,
+                size: 4,
+                opcode: 65534,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 7,
+                branch_idx: 3,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 68,
+                size: 4,
+                opcode: 65534,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 9,
+                branch_idx: 4,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 72,
+                size: 4,
+                opcode: 65534,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 11,
+                branch_idx: 5,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 76,
+                size: 4,
+                opcode: 65534,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 13,
+                branch_idx: 6,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 80,
+                size: 4,
+                opcode: 65534,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 15,
+                branch_idx: 7,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 84,
+                size: 4,
+                opcode: 65534,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 17,
+                branch_idx: 8,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 88,
+                size: 1,
+                opcode: 465,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 89,
+                size: 1,
+                opcode: 465,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 90,
+                size: 1,
+                opcode: 465,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 91,
+                size: 1,
+                opcode: 465,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 92,
+                size: 1,
+                opcode: 465,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 93,
+                size: 1,
+                opcode: 465,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 94,
+                size: 1,
+                opcode: 465,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 95,
+                size: 1,
+                opcode: 465,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+]

objdiff-core/tests/snapshots/arch_x86__read_x86_jumptable-3.snap

@@ -0,0 +1,39 @@
+---
+source: objdiff-core/tests/arch_x86.rs
+expression: output
+---
+[(Address(0), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("esp")), Normal, 0), (Argument(Opaque("+")), Normal, 0), (Argument(Signed(4)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(4), Normal, 5), (Spacing(4), Normal, 0), (Opcode("dec", 137), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Eol, Normal, 0)]
+[(Address(5), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 93), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(6)), Normal, 0), (Eol, Normal, 0)]
+[(Address(8), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ja", 297), Normal, 10), (Argument(Opaque("short")), Normal, 0), (Spacing(1), Normal, 0), (BranchDest(58), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(10), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jmp", 308), Normal, 10), (Argument(Opaque("dword")), Normal, 0), (Spacing(1), Normal, 0), (Argument(Opaque("ptr")), Normal, 0), (Spacing(1), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("eax")), Normal, 0), (Argument(Opaque("*")), Normal, 0), (Argument(Signed(4)), Normal, 0), (Argument(Opaque("+")), Normal, 0), (Symbol(Symbol { name: "$L282", demangled_name: None, address: 60, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic("]"), Normal, 0), (Basic(" ~>"), Rotating(1), 0), (Eol, Normal, 0)]
+[(Address(17), Normal, 5), (Basic(" ~> "), Rotating(2), 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(8)), Normal, 0), (Eol, Normal, 0)]
+[(Address(22), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ret", 662), Normal, 10), (Eol, Normal, 0)]
+[(Address(23), Normal, 5), (Basic(" ~> "), Rotating(3), 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(7)), Normal, 0), (Eol, Normal, 0)]
+[(Address(28), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ret", 662), Normal, 10), (Eol, Normal, 0)]
+[(Address(29), Normal, 5), (Basic(" ~> "), Rotating(4), 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(6)), Normal, 0), (Eol, Normal, 0)]
+[(Address(34), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ret", 662), Normal, 10), (Eol, Normal, 0)]
+[(Address(35), Normal, 5), (Basic(" ~> "), Rotating(5), 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(5)), Normal, 0), (Eol, Normal, 0)]
+[(Address(40), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ret", 662), Normal, 10), (Eol, Normal, 0)]
+[(Address(41), Normal, 5), (Basic(" ~> "), Rotating(6), 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(4)), Normal, 0), (Eol, Normal, 0)]
+[(Address(46), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ret", 662), Normal, 10), (Eol, Normal, 0)]
+[(Address(47), Normal, 5), (Basic(" ~> "), Rotating(7), 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(3)), Normal, 0), (Eol, Normal, 0)]
+[(Address(52), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ret", 662), Normal, 10), (Eol, Normal, 0)]
+[(Address(53), Normal, 5), (Basic(" ~> "), Rotating(8), 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(2)), Normal, 0), (Eol, Normal, 0)]
+[(Address(58), Normal, 5), (Basic(" ~> "), Rotating(0), 0), (Opcode("ret", 662), Normal, 10), (Eol, Normal, 0)]
+[(Address(59), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
+[(Address(60), Normal, 5), (Basic(" ~> "), Rotating(1), 0), (Opcode(".word", 65534), Normal, 10), (Symbol(Symbol { name: "$L272", demangled_name: None, address: 17, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(2), 0), (Eol, Normal, 0)]
+[(Address(64), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65534), Normal, 10), (Symbol(Symbol { name: "$L273", demangled_name: None, address: 23, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(3), 0), (Eol, Normal, 0)]
+[(Address(68), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65534), Normal, 10), (Symbol(Symbol { name: "$L274", demangled_name: None, address: 29, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(4), 0), (Eol, Normal, 0)]
+[(Address(72), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65534), Normal, 10), (Symbol(Symbol { name: "$L275", demangled_name: None, address: 35, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(5), 0), (Eol, Normal, 0)]
+[(Address(76), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65534), Normal, 10), (Symbol(Symbol { name: "$L276", demangled_name: None, address: 41, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(6), 0), (Eol, Normal, 0)]
+[(Address(80), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65534), Normal, 10), (Symbol(Symbol { name: "$L277", demangled_name: None, address: 47, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(7), 0), (Eol, Normal, 0)]
+[(Address(84), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65534), Normal, 10), (Symbol(Symbol { name: "$L278", demangled_name: None, address: 53, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(8), 0), (Eol, Normal, 0)]
+[(Address(88), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
+[(Address(89), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
+[(Address(90), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
+[(Address(91), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
+[(Address(92), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
+[(Address(93), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
+[(Address(94), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
+[(Address(95), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]

objdiff-core/tests/snapshots/arch_x86__read_x86_jumptable.snap

@@ -0,0 +1,305 @@
+---
+source: objdiff-core/tests/arch_x86.rs
+expression: obj
+---
+Object {
+    arch: ArchX86 {
+        arch: X86,
+        endianness: Little,
+    },
+    endianness: Little,
+    symbols: [
+        Symbol {
+            name: "Z:/tmp/code.c",
+            demangled_name: None,
+            address: 0,
+            size: 0,
+            kind: Unknown,
+            section: None,
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "@comp.id",
+            demangled_name: None,
+            address: 0,
+            size: 0,
+            kind: Object,
+            section: None,
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "[.drectve]",
+            demangled_name: None,
+            address: 0,
+            size: 38,
+            kind: Section,
+            section: Some(
+                0,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "[.text]",
+            demangled_name: None,
+            address: 0,
+            size: 0,
+            kind: Section,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "?test@@YAHH@Z",
+            demangled_name: Some(
+                "int __cdecl test(int)",
+            ),
+            address: 0,
+            size: 96,
+            kind: Function,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(Global | SizeInferred),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "$L278",
+            demangled_name: None,
+            address: 53,
+            size: 0,
+            kind: Unknown,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "$L277",
+            demangled_name: None,
+            address: 47,
+            size: 0,
+            kind: Unknown,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "$L276",
+            demangled_name: None,
+            address: 41,
+            size: 0,
+            kind: Unknown,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "$L275",
+            demangled_name: None,
+            address: 35,
+            size: 0,
+            kind: Unknown,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "$L274",
+            demangled_name: None,
+            address: 29,
+            size: 0,
+            kind: Unknown,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "$L273",
+            demangled_name: None,
+            address: 23,
+            size: 0,
+            kind: Unknown,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "$L272",
+            demangled_name: None,
+            address: 17,
+            size: 0,
+            kind: Unknown,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "$L282",
+            demangled_name: None,
+            address: 60,
+            size: 0,
+            kind: Unknown,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "[.debug$F]",
+            demangled_name: None,
+            address: 0,
+            size: 16,
+            kind: Section,
+            section: Some(
+                2,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+    ],
+    sections: [
+        Section {
+            id: ".drectve-0",
+            name: ".drectve",
+            address: 0,
+            size: 38,
+            kind: Unknown,
+            data: SectionData(
+                0,
+            ),
+            flags: FlagSet(),
+            relocations: [],
+            line_info: {},
+            virtual_address: None,
+        },
+        Section {
+            id: ".text-0",
+            name: ".text",
+            address: 0,
+            size: 96,
+            kind: Code,
+            data: SectionData(
+                96,
+            ),
+            flags: FlagSet(),
+            relocations: [
+                Relocation {
+                    flags: Coff(
+                        6,
+                    ),
+                    address: 13,
+                    target_symbol: 12,
+                    addend: 0,
+                },
+                Relocation {
+                    flags: Coff(
+                        6,
+                    ),
+                    address: 60,
+                    target_symbol: 11,
+                    addend: 0,
+                },
+                Relocation {
+                    flags: Coff(
+                        6,
+                    ),
+                    address: 64,
+                    target_symbol: 10,
+                    addend: 0,
+                },
+                Relocation {
+                    flags: Coff(
+                        6,
+                    ),
+                    address: 68,
+                    target_symbol: 9,
+                    addend: 0,
+                },
+                Relocation {
+                    flags: Coff(
+                        6,
+                    ),
+                    address: 72,
+                    target_symbol: 8,
+                    addend: 0,
+                },
+                Relocation {
+                    flags: Coff(
+                        6,
+                    ),
+                    address: 76,
+                    target_symbol: 7,
+                    addend: 0,
+                },
+                Relocation {
+                    flags: Coff(
+                        6,
+                    ),
+                    address: 80,
+                    target_symbol: 6,
+                    addend: 0,
+                },
+                Relocation {
+                    flags: Coff(
+                        6,
+                    ),
+                    address: 84,
+                    target_symbol: 5,
+                    addend: 0,
+                },
+            ],
+            line_info: {},
+            virtual_address: None,
+        },
+        Section {
+            id: ".debug$F-0",
+            name: ".debug$F",
+            address: 0,
+            size: 16,
+            kind: Unknown,
+            data: SectionData(
+                0,
+            ),
+            flags: FlagSet(),
+            relocations: [],
+            line_info: {},
+            virtual_address: None,
+        },
+    ],
+    split_meta: None,
+    path: None,
+    timestamp: None,
+}