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Upgrade to 2022-era LLVM LIBCXX

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Justine Tunney 2024-05-27 02:12:27 -07:00
parent 2f4ca71f26
commit 8e68384e15
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GPG key ID: BE714B4575D6E328
2078 changed files with 165657 additions and 65010 deletions
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50
libc/runtime/at_quick_exit.c Normal file
View file

@ -0,0 +1,50 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/atomic.h"
#include "libc/macros.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/thread/thread.h"
static void (*funcs[32])(void);
static int count;
static pthread_spinlock_t lock;
pthread_spinlock_t *const __at_quick_exit_lockptr = &lock;
void __funcs_on_quick_exit(void) {
void (*func)(void);
pthread_spin_lock(&lock);
while (count) {
func = funcs[--count];
pthread_spin_unlock(&lock);
func();
pthread_spin_lock(&lock);
}
}
int at_quick_exit(void func(void)) {
int res = 0;
pthread_spin_lock(&lock);
if (count == ARRAYLEN(funcs)) {
res = -1;
} else {
funcs[count++] = func;
}
pthread_spin_unlock(&lock);
return res;
}

4
libc/runtime/clone.c
View file

@ -147,7 +147,7 @@ static textwindows errno_t CloneWindows(int (*func)(void *, int), char *stk,
kNtStackSizeParamIsAReservation, &wt->utid))) {
if (flags & CLONE_SETTLS) {
struct CosmoTib *tib = tls;
tib->tib_syshand = h;
atomic_store_explicit(&tib->tib_syshand, h, memory_order_release);
}
if (flags & CLONE_PARENT_SETTID) {
*ptid = wt->tid;
@ -529,7 +529,7 @@ static errno_t CloneSilicon(int (*fn)(void *, int), char *stk, size_t stksz,
*ptid = tid;
if (flags & CLONE_SETTLS) {
struct CosmoTib *tib = tls;
tib[-1].tib_syshand = th;
atomic_store_explicit(&tib[-1].tib_syshand, th, memory_order_release);
}
}
unassert(!__syslib->__pthread_attr_destroy(attr));

28
libc/runtime/quick_exit.c Normal file
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@ -0,0 +1,28 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/weaken.h"
#include "libc/runtime/runtime.h"
void __funcs_on_quick_exit(void);
wontreturn void quick_exit(int code) {
if (_weaken(__funcs_on_quick_exit))
_weaken(__funcs_on_quick_exit)();
_Exit(code);
}