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Hide internal fadvise64/fallocate64 functions [BZ #18822]

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Hide internal fadvise64/fallocate64 functions to allow direct access
within libc.so and libc.a without using GOT nor PLT.

	[BZ #18822]
	* sysdeps/unix/sysv/linux/posix_fadvise64.c
	(__posix_fadvise64_l64): Add Add libc_hidden_proto and
	libc_hidden_def.
	* sysdeps/unix/sysv/linux/posix_fallocate64.c
	(__posix_fallocate64_l64): Likewise.
This commit is contained in:
H.J. Lu 2017-10-01 18:05:52 -07:00
parent d0a4512bd4
commit 397286ea93
3 changed files with 13 additions and 0 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822]
* sysdeps/unix/sysv/linux/posix_fadvise64.c
(__posix_fadvise64_l64): Add Add libc_hidden_proto and
libc_hidden_def.
* sysdeps/unix/sysv/linux/posix_fallocate64.c
(__posix_fallocate64_l64): Likewise.
2017-10-01 H.J. Lu <hongjiu.lu@intel.com> 2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822] [BZ #18822]

2
sysdeps/unix/sysv/linux/posix_fadvise64.c
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@ -20,6 +20,7 @@
#include <shlib-compat.h> #include <shlib-compat.h>
int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise); int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise);
libc_hidden_proto (__posix_fadvise64_l64)
/* Both arm and powerpc implements fadvise64_64 with last 'advise' argument /* Both arm and powerpc implements fadvise64_64 with last 'advise' argument
just after 'fd' to avoid the requirement of implementing 7-arg syscalls. just after 'fd' to avoid the requirement of implementing 7-arg syscalls.
@ -83,3 +84,4 @@ weak_alias (__posix_fadvise64_l64, posix_fadvise64);
weak_alias (__posix_fadvise64_l64, posix_fadvise64); weak_alias (__posix_fadvise64_l64, posix_fadvise64);
strong_alias (__posix_fadvise64_l64, posix_fadvise); strong_alias (__posix_fadvise64_l64, posix_fadvise);
#endif #endif
libc_hidden_def (__posix_fadvise64_l64)

2
sysdeps/unix/sysv/linux/posix_fallocate64.c
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@ -19,6 +19,7 @@
#include <sysdep.h> #include <sysdep.h>
extern int __posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len); extern int __posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len);
libc_hidden_proto (__posix_fallocate64_l64)
#define __posix_fallocate64_l64 static internal_fallocate64 #define __posix_fallocate64_l64 static internal_fallocate64
#include <sysdeps/posix/posix_fallocate64.c> #include <sysdeps/posix/posix_fallocate64.c>
#undef __posix_fallocate64_l64 #undef __posix_fallocate64_l64
@ -42,3 +43,4 @@ __posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len)
return INTERNAL_SYSCALL_ERRNO (res, err); return INTERNAL_SYSCALL_ERRNO (res, err);
return internal_fallocate64 (fd, offset, len); return internal_fallocate64 (fd, offset, len);
} }
libc_hidden_def (__posix_fallocate64_l64)