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Make fixes and improvements

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- clock_nanosleep() is now much faster on OpenBSD and NetBSD
- Thread joining is now much faster on NetBSD
- FreeBSD timestamps are now more accurate
- Thread spawning now goes faster on XNU
- Clean up the clone() code
This commit is contained in:
Justine Tunney 2022-11-08 10:09:47 -08:00
parent aee50b1327
commit b407327972
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GPG key ID: BE714B4575D6E328
47 changed files with 645 additions and 306 deletions
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25
libc/thread/pthread_create.c
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@ -19,38 +19,27 @@
#include "libc/assert.h"
#include "libc/calls/blocksigs.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/sched-sysv.internal.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/sigaltstack.h"
#include "libc/calls/struct/sigset.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/atomic.h"
#include "libc/intrin/bits.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/weaken.h"
#include "libc/log/internal.h"
#include "libc/macros.internal.h"
#include "libc/mem/mem.h"
#include "libc/nexgen32e/gc.internal.h"
#include "libc/runtime/clone.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/runtime/stack.h"
#include "libc/stdio/stdio.h"
#include "libc/sysv/consts/clone.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/prot.h"
#include "libc/sysv/consts/sig.h"
#include "libc/sysv/consts/ss.h"
#include "libc/sysv/errfuns.h"
#include "libc/thread/posixthread.internal.h"
#include "libc/thread/spawn.h"
#include "libc/thread/thread.h"
#include "libc/thread/tls.h"
#include "libc/thread/wait0.internal.h"
#include "third_party/dlmalloc/dlmalloc.h"
STATIC_YOINK("nsync_mu_lock");
STATIC_YOINK("nsync_mu_unlock");
@ -254,15 +243,13 @@ static errno_t pthread_create_impl(pthread_t *thread,
// launch PosixThread(pt) in new thread
pt->sigmask = oldsigs;
if (clone(PosixThread, pt->attr.__stackaddr,
pt->attr.__stacksize - (IsOpenbsd() ? 16 : 0),
CLONE_VM | CLONE_THREAD | CLONE_FS | CLONE_FILES | CLONE_SIGHAND |
CLONE_SETTLS | CLONE_PARENT_SETTID | CLONE_CHILD_SETTID |
CLONE_CHILD_CLEARTID,
pt, &pt->tid, pt->tib, &pt->tib->tib_tid) == -1) {
rc = errno;
if ((rc = clone(PosixThread, pt->attr.__stackaddr,
pt->attr.__stacksize - (IsOpenbsd() ? 16 : 0),
CLONE_VM | CLONE_THREAD | CLONE_FS | CLONE_FILES |
CLONE_SIGHAND | CLONE_SETTLS | CLONE_PARENT_SETTID |
CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID,
pt, &pt->ptid, pt->tib, &pt->tib->tib_tid))) {
_pthread_free(pt);
errno = e;
return rc;
}