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wasm: Improve API error handling

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This commit is contained in:
Luke Street
2025-04-01 21:45:13 -06:00
parent 9b557e4c8e
commit 2bcbc34850
3 changed files with 111 additions and 39 deletions
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10
objdiff-wasm/src/cabi_realloc.rs
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@@ -35,9 +35,17 @@ static FORCE_CODEGEN_OF_CABI_REALLOC: unsafe extern "C" fn(
pub unsafe extern "C" fn cabi_realloc(
old_ptr: *mut u8,
old_len: usize,
align: usize,
mut align: usize,
new_len: usize,
) -> *mut u8 {
// HACK: The object crate requires the data alignment for 64-bit objects to be 8,
// but in wasm32, our allocator will have a minimum alignment of 4. We can't specify
// the alignment of `list<u8>` in the component model, so we work around this here.
// https://github.com/WebAssembly/component-model/issues/258
#[cfg(target_pointer_width = "32")]
if align == 1 {
align = 8;
}
let layout;
let ptr = if old_len == 0 {
if new_len == 0 {