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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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17
libc/runtime/fork.c
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@ -16,18 +16,17 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/bits.h"
#include "libc/intrin/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/strace.internal.h"
#include "libc/calls/struct/sigset.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/calls/syscall_support-sysv.internal.h"
#include "libc/dce.h"
#include "libc/nexgen32e/gettls.h"
#include "libc/nexgen32e/threaded.h"
#include "libc/nt/process.h"
#include "libc/runtime/internal.h"
#include "libc/sysv/consts/sig.h"
/**
* Creates new process.
@ -37,14 +36,17 @@
*/
int fork(void) {
axdx_t ad;
sigset_t old, all;
int ax, dx, parent;
sigfillset(&all);
sigprocmask(SIG_BLOCK, &all, &old);
if (!IsWindows()) {
ad = sys_fork();
ax = ad.ax;
dx = ad.dx;
if (IsXnu() && ax != -1) {
/* eax always returned with childs pid */
/* edx is 0 for parent and 1 for child */
// eax always returned with childs pid
// edx is 0 for parent and 1 for child
ax &= dx - 1;
}
} else {
@ -62,11 +64,10 @@ int fork(void) {
*(int *)(__get_tls() + 0x38) = IsLinux() ? dx : sys_gettid();
}
STRACE("fork() → 0 (child of %d)", parent);
if (weaken(__onfork)) {
weaken(__onfork)();
}
sigprocmask(SIG_SETMASK, &old, 0);
} else {
STRACE("fork() → %d% m", ax);
sigprocmask(SIG_SETMASK, &old, 0);
}
return ax;
}