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| | #include <unistd.h>
#include <string.h>
#include <signal.h>
#include "syscall.h"
#include "libc.h"
#include "pthread_impl.h"
static void dummy(int x)
{
}
weak_alias(dummy, __fork_handler);
pid_t fork(void)
{
pid_t ret;
sigset_t set;
int olderr;
__fork_handler(-1);
__block_all_sigs(&set);
#ifdef SYS_fork
ret = syscall(SYS_fork);
#else
ret = syscall(SYS_clone, SIGCHLD, 0);
#endif
if (!ret) {
pthread_t self = __pthread_self();
self->tid = __syscall(SYS_gettid);
self->robust_list.off = 0;
self->robust_list.pending = 0;
libc.threads_minus_1 = 0;
}
__restore_sigs(&set);
olderr = errno;
__fork_handler(!ret);
errno = olderr;
return ret;
}
|