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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2021-01-18 15:18:13 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2021-06-24 10:02:06 -0300
commit9a7565403758f65c07fe3705e966381d9cfd35b6 (patch)
tree688958070ec772ee1b6c0621e289f49d758fed2a /include/unistd.h
parentde8995a2a04163617c1a233b4b81356ef9f9741f (diff)
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posix: Consolidate fork implementation
The Linux nptl implementation is used as base for generic fork
implementation to handle the internal locks and mutexes.  The
system specific bits are moved a new internal _Fork symbol.

(This new implementation will be used to provide a async-signal-safe
_Fork now that POSIX has clarified that fork might not be
async-signal-safe [1]).

For Hurd it means that the __nss_database_fork_prepare_parent and
__nss_database_fork_subprocess will be run in a slight different
order.

[1] https://austingroupbugs.net/view.php?id=62
Diffstat (limited to 'include/unistd.h')
-rw-r--r--include/unistd.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/unistd.h b/include/unistd.h
index 34872d8b41..691405a945 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -140,6 +140,8 @@ extern __pid_t __vfork (void);
 libc_hidden_proto (__vfork)
 extern int __ttyname_r (int __fd, char *__buf, size_t __buflen);
 libc_hidden_proto (__ttyname_r)
+extern __pid_t _Fork (void);
+libc_hidden_proto (_Fork);
 extern int __isatty (int __fd) attribute_hidden;
 extern int __link (const char *__from, const char *__to);
 extern int __symlink (const char *__from, const char *__to);