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Reduce stack virtual memory consumption on Linux

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This commit is contained in:
Justine Tunney 2024-12-25 19:43:43 -08:00
parent cc8a9eb93c
commit 36e5861b0c
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GPG key ID: BE714B4575D6E328
31 changed files with 583 additions and 166 deletions
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5
libc/calls/setrlimit.c
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@ -23,6 +23,7 @@
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/describeflags.h"
#include "libc/intrin/rlimit.h"
#include "libc/intrin/strace.h"
#include "libc/macros.h"
#include "libc/runtime/runtime.h"
@ -88,10 +89,12 @@ int setrlimit(int resource, const struct rlimit *rlim) {
} else if (!IsWindows() && !(IsNetbsd() && resource == RLIMIT_AS)) {
rc = sys_setrlimit(resource, rlim);
} else if (resource == RLIMIT_STACK) {
rc = enotsup();
rc = 0;
} else {
rc = einval();
}
if (!rc && resource == RLIMIT_STACK)
__rlimit_stack_set(*rlim); // so __rlimit_stack_get() works on all OSes
if (resource == RLIMIT_AS) {
__virtualmax = rlim->rlim_cur;
errno = olde;