i386: Hide __old_readdir64 [BZ #18822]

Hide internal __old_readdir64 function to allow direct access within
libc.so and libc.a without using GOT nor PLT.

	[BZ #18822]
	* sysdeps/unix/sysv/linux/i386/olddirent.h (__old_readdir64):
	Add libc_hidden_proto.
	* sysdeps/unix/sysv/linux/i386/readdir64.c (__old_readdir64):
	Add libc_hidden_def.

diff --git a/ChangeLog b/ChangeLog
index 2596c39f3e0666c841ba7f9734a43c27d5cceebf..5d16204f5c52fe705be6a5050a1df20db193c996 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2017-08-20  H.J. Lu  <hongjiu.lu@intel.com>
+
+       [BZ #18822]
+       * sysdeps/unix/sysv/linux/i386/olddirent.h (__old_readdir64):
+       Add libc_hidden_proto.
+       * sysdeps/unix/sysv/linux/i386/readdir64.c (__old_readdir64):
+       Add libc_hidden_def.
+
 2017-08-20  H.J. Lu  <hongjiu.lu@intel.com>
 
        [BZ #21974]

diff --git a/sysdeps/unix/sysv/linux/i386/olddirent.h b/sysdeps/unix/sysv/linux/i386/olddirent.h
index 413f78d10880ce69e008c251ee785bae9c5d239a..8f2fcb7a9c01ee642b5a318fe3eda30bb23c67a7 100644 (file)
--- a/sysdeps/unix/sysv/linux/i386/olddirent.h
+++ b/sysdeps/unix/sysv/linux/i386/olddirent.h
@@ -31,6 +31,7 @@ struct __old_dirent64
 
 /* Now define the internal interfaces.  */
 extern struct __old_dirent64 *__old_readdir64 (DIR *__dirp);
+libc_hidden_proto (__old_readdir64);
 extern int __old_readdir64_r (DIR *__dirp, struct __old_dirent64 *__entry,
                          struct __old_dirent64 **__result);
 extern __ssize_t __old_getdents64 (int __fd, char *__buf, size_t __nbytes)

diff --git a/sysdeps/unix/sysv/linux/i386/readdir64.c b/sysdeps/unix/sysv/linux/i386/readdir64.c
index f80b6a7ba284f86a3eeb66d1d60d9183e2c20493..de8669feff9e9576344355e2d78e6c5772497c91 100644 (file)
--- a/sysdeps/unix/sysv/linux/i386/readdir64.c
+++ b/sysdeps/unix/sysv/linux/i386/readdir64.c
@@ -39,5 +39,7 @@ versioned_symbol (libc, __readdir64, readdir64, GLIBC_2_2);
 
 #include <sysdeps/posix/readdir.c>
 
+libc_hidden_def (__old_readdir64)
+
 compat_symbol (libc, __old_readdir64, readdir64, GLIBC_2_1);
 #endif