Last change
on this file since 444 was 444, checked in by coas-nagasima, 4 years ago |
muslのソースコードを追加
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File size:
619 bytes
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1 | #include <unistd.h>
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2 | #include <string.h>
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3 | #include <signal.h>
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4 | #include "syscall.h"
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5 | #include "libc.h"
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6 | #include "pthread_impl.h"
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7 |
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8 | static void dummy(int x)
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9 | {
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10 | }
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11 |
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12 | weak_alias(dummy, __fork_handler);
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13 |
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14 | pid_t fork(void)
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15 | {
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16 | pid_t ret;
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17 | sigset_t set;
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18 | __fork_handler(-1);
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19 | __block_all_sigs(&set);
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20 | #ifdef SYS_fork
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21 | ret = syscall(SYS_fork);
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22 | #else
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23 | ret = syscall(SYS_clone, SIGCHLD, 0);
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24 | #endif
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25 | if (!ret) {
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26 | pthread_t self = __pthread_self();
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27 | self->tid = __syscall(SYS_gettid);
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28 | self->robust_list.off = 0;
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29 | self->robust_list.pending = 0;
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30 | libc.threads_minus_1 = 0;
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31 | }
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32 | __restore_sigs(&set);
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33 | __fork_handler(!ret);
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34 | return ret;
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35 | }
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