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Hide internal __sched_setparam function [BZ #18822]

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Hide internal __sched_setparam function to allow direct access within
libc.so and libc.a without using GOT nor PLT.

__GI___sched_setparam is defined when sysdeps/unix/syscalls.list is
used to generate sched_setparam.  Otherwise libc_hidden_def is needed
explicitly.

	[BZ #18822]
	* include/sched.h (__sched_setparam): Add libc_hidden_proto.
	* posix/sched_setp.c (__sched_setparam): Add libc_hidden_def.
This commit is contained in:
H.J. Lu 2017-10-01 17:43:13 -07:00
parent 57f859bdb7
commit fd331b1179
3 changed files with 8 additions and 0 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822]
* include/sched.h (__sched_setparam): Add libc_hidden_proto.
* posix/sched_setp.c (__sched_setparam): Add libc_hidden_def.
2017-10-01 H.J. Lu <hongjiu.lu@intel.com> 2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822] [BZ #18822]

1
include/sched.h
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@ -5,6 +5,7 @@
/* Now define the internal interfaces. */ /* Now define the internal interfaces. */
extern int __sched_setparam (__pid_t __pid, extern int __sched_setparam (__pid_t __pid,
const struct sched_param *__param); const struct sched_param *__param);
libc_hidden_proto (__sched_setparam)
extern int __sched_getparam (__pid_t __pid, struct sched_param *__param); extern int __sched_getparam (__pid_t __pid, struct sched_param *__param);
extern int __sched_setscheduler (__pid_t __pid, int __policy, extern int __sched_setscheduler (__pid_t __pid, int __policy,
const struct sched_param *__param); const struct sched_param *__param);

1
posix/sched_setp.c
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@ -29,4 +29,5 @@ __sched_setparam (pid_t pid, const struct sched_param *param)
} }
stub_warning (sched_setparam) stub_warning (sched_setparam)
libc_hidden_def (__sched_setparam)
weak_alias (__sched_setparam, sched_setparam) weak_alias (__sched_setparam, sched_setparam)