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Merge branch 'fix-aligned_alloc' into 'master'

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fix: return EINVAL when `alignment` of `aligned_alloc` is 0

Closes #258

See merge request redox-os/relibc!968
This commit is contained in:
Jeremy Soller
2026-02-24 08:10:24 -07:00
parent 93cce3bc63 2e4db0d130
commit 24ea34a03e
1 changed files with 5 additions and 6 deletions
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src/header/stdlib/mod.rs
+5 -6
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@@ -142,14 +142,13 @@ pub extern "C" fn abs(i: c_int) -> c_int {
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/aligned_alloc.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn aligned_alloc(alignment: size_t, size: size_t) -> *mut c_void {
if size % alignment == 0 {
/* The size-is-multiple-of-alignment requirement is the only
* difference between aligned_alloc() and memalign(). */
unsafe { memalign(alignment, size) }
} else {
if alignment == 0 || size % alignment != 0 {
platform::ERRNO.set(EINVAL);
ptr::null_mut()
return ptr::null_mut();
}
/* The size-is-multiple-of-alignment requirement is the only
* difference between aligned_alloc() and memalign(). */
unsafe { memalign(alignment, size) }
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/at_quick_exit.html>.