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Add experimental wasm bindings

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Published to npm as objdiff-wasm
This commit is contained in:
Luke Street
2024-08-20 21:40:32 -06:00
parent 8250d26b77
commit 0fccae1049
40 changed files with 4732 additions and 311 deletions
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15
objdiff-core/src/obj/read.rs
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@@ -426,7 +426,7 @@ fn line_info(obj_file: &File<'_>, sections: &mut [ObjSection]) -> Result<()> {
};
let end = start + size as u64;
while reader.position() < end {
let line_number = read_u32(obj_file, &mut reader)? as u64;
let line_number = read_u32(obj_file, &mut reader)?;
let statement_pos = read_u16(obj_file, &mut reader)?;
if statement_pos != 0xFFFF {
log::warn!("Unhandled statement pos {}", statement_pos);
@@ -468,7 +468,7 @@ fn line_info(obj_file: &File<'_>, sections: &mut [ObjSection]) -> Result<()> {
let mut rows = program.rows();
while let Some((_header, row)) = rows.next_row()? {
if let (Some(line), Some(lines)) = (row.line(), &mut lines) {
lines.insert(row.address(), line.get());
lines.insert(row.address(), line.get() as u32);
}
if row.end_sequence() {
// The next row is the start of a new sequence, which means we must
@@ -600,7 +600,14 @@ pub fn read(obj_path: &Path, config: &DiffObjConfig) -> Result<ObjInfo> {
let timestamp = FileTime::from_last_modification_time(&file.metadata()?);
(unsafe { memmap2::Mmap::map(&file) }?, timestamp)
};
let obj_file = File::parse(&*data)?;
let mut obj = parse(&data, config)?;
obj.path = Some(obj_path.to_owned());
obj.timestamp = Some(timestamp);
Ok(obj)
}
pub fn parse(data: &[u8], config: &DiffObjConfig) -> Result<ObjInfo> {
let obj_file = File::parse(data)?;
let arch = new_arch(&obj_file)?;
let split_meta = split_meta(&obj_file)?;
let mut sections = filter_sections(&obj_file, split_meta.as_ref())?;
@@ -616,7 +623,7 @@ pub fn read(obj_path: &Path, config: &DiffObjConfig) -> Result<ObjInfo> {
line_info(&obj_file, &mut sections)?;
let common = common_symbols(arch.as_ref(), &obj_file, split_meta.as_ref())?;
let extab = exception_tables(&mut sections, &obj_file)?;
Ok(ObjInfo { arch, path: obj_path.to_owned(), timestamp, sections, common, extab, split_meta })
Ok(ObjInfo { arch, path: None, timestamp: None, sections, common, extab, split_meta })
}
pub fn has_function(obj_path: &Path, symbol_name: &str) -> Result<bool> {