From 2f5c1b000aaeb2c25b1df52453bba8de7f9453e2 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 12 Nov 2014 16:24:16 +0000 Subject: Fix __getcwd rewinddir namespace (bug 17584). __getcwd is called from dcigettext.o (brought in by various ISO C functionality), but calls rewinddir, which is not an ISO C function. This patch makes __getcwd call __rewinddir instead and makes rewinddir a weak alias for __rewinddir. Since getcwd.c is shared with gnulib (albeit not merged in either direction for a long time, and omitted from gnulib's config/srclist.txt list of shared files) I put in a #ifndef _LIBC define of __rewinddir to rewinddir, although a future merged version of getcwd could end up looking significantly different. Tested for x86_64 (testsuite, and that disassembly of installed shared libraries is unchanged by this patch). [BZ #17584] * dirent/rewinddir.c (rewinddir): Rename to __rewinddir and define as weak alias of __rewinddir. Don't use libc_hidden_def. (__rewinddir): Use libc_hidden_def. * sysdeps/mach/hurd/rewinddir.c: Rename to __rewinddir and define as weak alias of __rewinddir. Don't use libc_hidden_def. (__rewinddir): Use libc_hidden_def. * sysdeps/posix/rewinddir.c: Rename to __rewinddir and define as weak alias of __rewinddir. Don't use libc_hidden_def. (__rewinddir): Use libc_hidden_def. * include/dirent.h (rewinddir): Don't use libc_hidden_proto. (__rewinddir): Use libc_hidden_proto. * sysdeps/posix/getcwd.c [!_LIBC] (__rewinddir): Define to rewinddir. (__getcwd): Use __rewinddir instead of rewinddir. --- dirent/rewinddir.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'dirent') diff --git a/dirent/rewinddir.c b/dirent/rewinddir.c index 86d9fbd720..ba5b002ce0 100644 --- a/dirent/rewinddir.c +++ b/dirent/rewinddir.c @@ -22,13 +22,14 @@ /* Rewind DIRP to the beginning of the directory. */ void -rewinddir (dirp) +__rewinddir (dirp) DIR *dirp; { __set_errno (ENOSYS); /* No way to indicate failure. */ } -libc_hidden_def (rewinddir) +libc_hidden_def (__rewinddir) +weak_alias (__rewinddir, rewinddir) stub_warning (rewinddir) -- cgit 1.4.1