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Clean up some of the threading code

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Justine Tunney 2022-09-08 11:54:56 -07:00
parent 0547eabcd6
commit 9f963dc597
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GPG key ID: BE714B4575D6E328
62 changed files with 175 additions and 582 deletions
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12
libc/runtime/clone.c
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@ -23,7 +23,7 @@
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/spinlock.h"
#include "libc/intrin/pthread.h"
#include "libc/limits.h"
#include "libc/macros.internal.h"
#include "libc/nexgen32e/gettls.h"
@ -63,7 +63,7 @@ struct CloneArgs {
uint32_t utid;
int64_t tid64;
};
char lock;
pthread_spinlock_t lock;
int *ptid;
int *ctid;
int *ztid;
@ -163,7 +163,7 @@ XnuThreadMain(void *pthread, // rdi
wt->tid = tid;
*wt->ptid = tid;
*wt->ctid = tid;
_spunlock(&wt->lock);
pthread_spin_unlock(&wt->lock);
if (wt->tls) {
// XNU uses the same 0x30 offset as the WIN32 TIB x64. They told the
@ -216,11 +216,11 @@ static int CloneXnu(int (*fn)(void *), char *stk, size_t stksz, int flags,
wt->ctid = flags & CLONE_CHILD_SETTID ? ctid : &wt->tid;
wt->ztid = flags & CLONE_CHILD_CLEARTID ? ctid : &wt->tid;
wt->tls = flags & CLONE_SETTLS ? tls : 0;
wt->lock = 1;
wt->lock.lock = 1;
if ((rc = bsdthread_create(fn, arg, wt, 0, PTHREAD_START_CUSTOM_XNU)) != -1) {
_spinlock(&wt->lock);
pthread_spin_lock(&wt->lock);
rc = wt->tid;
_spunlock(&wt->lock);
pthread_spin_unlock(&wt->lock);
}
return rc;
}