fork.c 399 字节
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#include <unistd.h>
#include "syscall.h"
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#include "libc.h"
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#include "pthread_impl.h"
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pid_t fork(void)
{
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	pid_t ret;
	if (libc.fork_handler) libc.fork_handler(-1);
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	ret = syscall(SYS_fork);
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	if (libc.threaded && !ret) {
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		pthread_t self = __pthread_self();
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		self->tid = self->pid = syscall(SYS_getpid);
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		libc.threads_minus_1 = 0;
	}
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	if (libc.fork_handler) libc.fork_handler(!ret);
	return ret;
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}