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authorH.J. Lu <hjl.tools@gmail.com>2017-10-01 16:04:26 -0700
committerH.J. Lu <hjl.tools@gmail.com>2017-10-01 16:04:41 -0700
commit6a088436d4c04b8081e86f9e856f10fba97d0612 (patch)
tree2c229f425eba248cdc13454a71d594d237b87a81 /sysdeps/mach
parent78cf1d74d28c9312d888dea1ad3de01d38c5fc4a (diff)
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Hide internal signal functions [BZ #18822]
Hide internal signal functions to allow direct access within libc.so and libc.a without using GOT nor PLT. __GI___kill and __GI___sigaltstack are defined when syscalls.list is used to generate them. Otherwise libc_hidden_def is needed explicitly. [BZ #18822] * include/signal.h (__kill): Add libc_hidden_proto. (__sigblock): Likewise. (__sigprocmask): Likewise. (__sigaltstack): Likewise. * signal/kill.c (__kill): Add libc_hidden_def. * signal/sigblock.c (__sigblock): Likewise. * signal/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/mach/hurd/kill.c (__kill): Likewise. * sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Likewise. * sysdeps/mach/hurd/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/posix/sigblock.c (__sigblock): Likewise. * sysdeps/unix/sysv/linux/alpha/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/unix/sysv/linux/ia64/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/unix/sysv/linux/sigprocmask.c (__sigprocmask): Likewise. * /sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/unix/sysv/linux/x86_64/sigprocmask.c (__sigprocmask): Likewise.
Diffstat (limited to 'sysdeps/mach')
-rw-r--r--sysdeps/mach/hurd/kill.c1
-rw-r--r--sysdeps/mach/hurd/sigaltstack.c1
-rw-r--r--sysdeps/mach/hurd/sigprocmask.c1
3 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/kill.c b/sysdeps/mach/hurd/kill.c
index 2d556dd2ff..5360bb52c5 100644
--- a/sysdeps/mach/hurd/kill.c
+++ b/sysdeps/mach/hurd/kill.c
@@ -146,4 +146,5 @@ __kill (pid_t pid, int sig)
return delivered ? 0 : __hurd_fail (err ?: ESRCH);
}
+libc_hidden_def (__kill)
weak_alias (__kill, kill)
diff --git a/sysdeps/mach/hurd/sigaltstack.c b/sysdeps/mach/hurd/sigaltstack.c
index 4fba69e766..3fde510e23 100644
--- a/sysdeps/mach/hurd/sigaltstack.c
+++ b/sysdeps/mach/hurd/sigaltstack.c
@@ -57,4 +57,5 @@ __sigaltstack (const stack_t *argss, stack_t *oss)
return 0;
}
+libc_hidden_def (__sigaltstack)
weak_alias (__sigaltstack, sigaltstack)
diff --git a/sysdeps/mach/hurd/sigprocmask.c b/sysdeps/mach/hurd/sigprocmask.c
index a4ebe580ff..70b9a10a7b 100644
--- a/sysdeps/mach/hurd/sigprocmask.c
+++ b/sysdeps/mach/hurd/sigprocmask.c
@@ -80,4 +80,5 @@ __sigprocmask (int how, const sigset_t *set, sigset_t *oset)
return 0;
}
+libc_hidden_def (__sigprocmask)
weak_alias (__sigprocmask, sigprocmask)