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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/intrin/sig.c
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@ -53,6 +53,8 @@
#include "libc/runtime/internal.h"
#include "libc/runtime/symbols.internal.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/prot.h"
#include "libc/sysv/consts/sa.h"
#include "libc/sysv/consts/sicode.h"
#include "libc/sysv/consts/ss.h"
@ -680,7 +682,8 @@ textwindows dontinstrument static uint32_t __sig_worker(void *arg) {
__bootstrap_tls(&tls, __builtin_frame_address(0));
char *sp = __builtin_frame_address(0);
__maps_track((char *)(((uintptr_t)sp + __pagesize - 1) & -__pagesize) - STKSZ,
STKSZ);
STKSZ, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_NOFORK);
for (;;) {
_pthread_mutex_lock(&__sig_worker_lock);