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Make futexes cancellable by pthreads

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This commit is contained in:
Justine Tunney 2022-11-04 18:19:05 -07:00
parent 2278327eba
commit 022536cab6
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GPG key ID: BE714B4575D6E328
101 changed files with 627 additions and 391 deletions
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2
libc/log/die.c
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@ -29,6 +29,7 @@
#include "libc/log/log.h"
#include "libc/runtime/internal.h"
#include "libc/runtime/runtime.h"
#include "libc/thread/thread.h"
#if SupportsMetal()
STATIC_YOINK("_idt");
@ -45,6 +46,7 @@ relegated wontreturn void __die(void) {
static atomic_int once;
owner = 0;
me = sys_gettid();
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, 0);
if (__vforked ||
atomic_compare_exchange_strong_explicit(
&once, &owner, me, memory_order_relaxed, memory_order_relaxed)) {

2
libc/log/oncrash.c
View file

@ -43,6 +43,7 @@
#include "libc/runtime/runtime.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/thread/thread.h"
#include "libc/thread/tls.h"
#include "third_party/libcxx/math.h"
@ -307,6 +308,7 @@ relegated void __oncrash(int sig, struct siginfo *si, ucontext_t *ctx) {
strace_enabled(-1);
owner = 0;
me = sys_gettid();
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, 0);
if (atomic_compare_exchange_strong_explicit(
&once, &owner, me, memory_order_relaxed, memory_order_relaxed)) {
if (!__vforked) {

2
libc/log/startfatal.c
View file

@ -20,6 +20,7 @@
#include "libc/intrin/safemacros.internal.h"
#include "libc/log/internal.h"
#include "libc/runtime/runtime.h"
#include "libc/thread/thread.h"
/**
* Prints initial part of fatal message.
@ -27,6 +28,7 @@
* @note this is support code for __check_fail(), __assert_fail(), etc.
*/
relegated void __start_fatal(const char *file, int line) {
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, 0);
__restore_tty();
kprintf("%r%serror%s:%s:%d:%s%s: ", !__nocolor ? "\e[J\e[30;101m" : "",
!__nocolor ? "\e[94;49m" : "", file, line,