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Austin Group issue 62 [1] dropped the async-signal-safe requirement for fork and provided a async-signal-safe _Fork replacement that does not run the atfork handlers. It will be included in the next POSIX standard. It allow to close a long standing issue to make fork AS-safe (BZ#4737). As indicated on the bug, besides the internal lock for the atfork handlers itself; there is no guarantee that the handlers itself will not introduce more AS-safe issues. The idea is synchronize fork with the required internal locks to allow children in multithread processes to use mostly of standard function (even though POSIX states only AS-safe function should be used). On signal handles, _Fork should be used intead and only AS-safe functions should be used. For testing, the new tst-_Fork only check basic usage. I also added a new tst-mallocfork3 which uses the same strategy to check for deadlock of tst-mallocfork2 but using threads instead of subprocesses (and it does deadlock if it replaces _Fork with fork). [1] https://austingroupbugs.net/view.php?id=62 |
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| .. | ||
| n32 | ||
| n64 | ||
| configure | ||
| configure.ac | ||
| fxstat64.c | ||
| fxstatat64.c | ||
| fxstatat.c | ||
| getdents64.c | ||
| ipc_priv.h | ||
| kstat_cp.h | ||
| ldconfig.h | ||
| ldd-rewrite.sed | ||
| libBrokenLocale.abilist | ||
| libcrypt.abilist | ||
| libdl.abilist | ||
| libm.abilist | ||
| libnsl.abilist | ||
| libpthread.abilist | ||
| libthread_db.abilist | ||
| libutil.abilist | ||
| lxstat64.c | ||
| Makefile | ||
| msgctl.c | ||
| semctl.c | ||
| shmctl.c | ||
| syscall.S | ||
| sysdep.h | ||
| xstat64.c | ||