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improve QNX support

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This commit is contained in:
Daan
2025-03-06 20:40:52 -08:00
parent 97d440b51d
commit 783c3ba486
1 changed files with 7 additions and 6 deletions
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13
src/prim/unix/prim.c
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@@ -62,7 +62,14 @@ terms of the MIT license. A copy of the license can be found in the file
#include <sys/syscall.h>
#endif
#if !defined(MADV_DONTNEED) && defined(POSIX_MADV_DONTNEED) // QNX
#define MADV_DONTNEED POSIX_MADV_DONTNEED
#endif
#if !defined(MADV_FREE) && defined(POSIX_MADV_FREE) // QNX
#define MADV_FREE POSIX_MADV_FREE
#endif
//------------------------------------------------------------------------------------
// Use syscalls for some primitives to allow for libraries that override open/read/close etc.
// and do allocation themselves; using syscalls prevents recursion when mimalloc is
@@ -413,11 +420,7 @@ int _mi_prim_commit(void* start, size_t size, bool* is_zero) {
int _mi_prim_decommit(void* start, size_t size, bool* needs_recommit) {
int err = 0;
// decommit: use MADV_DONTNEED as it decreases rss immediately (unlike MADV_FREE)
#if defined(__QNX__)
err = posix_madvise(start, size, POSIX_MADV_DONTNEED);
#else
err = unix_madvise(start, size, MADV_DONTNEED);
#endif
#if !MI_DEBUG && !MI_SECURE
*needs_recommit = false;
#else
@@ -449,8 +452,6 @@ int _mi_prim_reset(void* start, size_t size) {
mi_atomic_store_release(&advice, (size_t)MADV_DONTNEED);
err = unix_madvise(start, size, MADV_DONTNEED);
}
#elif defined(__QNX__)
int err = posix_madvise(start, size, POSIX_MADV_DONTNEED);
#else
int err = unix_madvise(start, size, MADV_DONTNEED);
#endif