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authorH.J. Lu <hjl.tools@gmail.com>2017-10-01 18:05:52 -0700
committerH.J. Lu <hjl.tools@gmail.com>2017-10-01 18:06:04 -0700
commit397286ea93ad30c24a5dad7928d0056c7b7d603d (patch)
treed2f301caac41b108f77c2d49d9f7c1b125393221
parentd0a4512bd437c8caebc0e6ce295e4e0a5079e6b3 (diff)
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Hide internal fadvise64/fallocate64 functions [BZ #18822]
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.
-rw-r--r--ChangeLog9
-rw-r--r--sysdeps/unix/sysv/linux/posix_fadvise64.c2
-rw-r--r--sysdeps/unix/sysv/linux/posix_fallocate64.c2
3 files changed, 13 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 567a258cc5..21374605c3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,15 @@
 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>
+
+	[BZ #18822]
 	* sysdeps/unix/sysv/linux/sched_setaffinity.c
 	(__sched_setaffinity_new): Add libc_hidden_proto and
 	libc_hidden_def.
diff --git a/sysdeps/unix/sysv/linux/posix_fadvise64.c b/sysdeps/unix/sysv/linux/posix_fadvise64.c
index aaee60add7..6dee86c833 100644
--- a/sysdeps/unix/sysv/linux/posix_fadvise64.c
+++ b/sysdeps/unix/sysv/linux/posix_fadvise64.c
@@ -20,6 +20,7 @@
 #include <shlib-compat.h>
 
 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
    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);
 strong_alias (__posix_fadvise64_l64, posix_fadvise);
 #endif
+libc_hidden_def (__posix_fadvise64_l64)
diff --git a/sysdeps/unix/sysv/linux/posix_fallocate64.c b/sysdeps/unix/sysv/linux/posix_fallocate64.c
index eb05f7c5d0..76cf27a616 100644
--- a/sysdeps/unix/sysv/linux/posix_fallocate64.c
+++ b/sysdeps/unix/sysv/linux/posix_fallocate64.c
@@ -19,6 +19,7 @@
 #include <sysdep.h>
 
 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
 #include <sysdeps/posix/posix_fallocate64.c>
 #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_fallocate64 (fd, offset, len);
 }
+libc_hidden_def (__posix_fallocate64_l64)