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[PATCH] i386: Hide __old_readdir64 [BZ #18822]

• From: "H.J. Lu" <hjl dot tools at gmail dot com>
• To: GNU C Library <libc-alpha at sourceware dot org>
• Date: Sun, 20 Aug 2017 10:30:29 -0700
• Subject: [PATCH] i386: Hide __old_readdir64 [BZ #18822]
• Authentication-results: sourceware.org; auth=none

Hide internal __old_readdir64 function to allow direct access withinlibc.so and libc.a without using GOT nor PLT.I will check it in after testing on i686.H.J.---            [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.--- sysdeps/unix/sysv/linux/i386/olddirent.h | 1 + sysdeps/unix/sysv/linux/i386/readdir64.c | 2 ++ 2 files changed, 3 insertions(+)diff --git a/sysdeps/unix/sysv/linux/i386/olddirent.h b/sysdeps/unix/sysv/linux/i386/olddirent.hindex 4875a1f2fa..a90883d131 100644--- 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.cindex 0563c43d73..8c235f9831 100644--- a/sysdeps/unix/sysv/linux/i386/readdir64.c+++ b/sysdeps/unix/sysv/linux/i386/readdir64.c@@ -40,5 +40,7 @@ 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-- 2.13.5