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Do not erronously export 'openat' symbol from rtld.

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The symbol leaked after r276630 since lib/libc/sys/openat.c defines
versions for openat using .symver (version script cannot assign two
versions to one symbol), and rtld uses openat.  Instead, directly use
__sys_openat().

Reported and tested by:	antoine
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2015-01-04 00:33:41 +00:00
parent c6f7b90092
commit 0c5cba543b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=276646
1 changed files with 3 additions and 1 deletions
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4
libexec/rtld-elf/rtld.c
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@ -166,6 +166,8 @@ static bool matched_symbol(SymLook *, const Obj_Entry *, Sym_Match_Result *,
void r_debug_state(struct r_debug *, struct link_map *) __noinline;
void _r_debug_postinit(struct link_map *) __noinline;
int __sys_openat(int, const char *, int, ...);
/*
* Data declarations.
*/
@ -2824,7 +2826,7 @@ search_library_pathfds(const char *name, const char *path, int *fdp)
dirfd = parse_libdir(fdstr);
if (dirfd < 0)
break;
fd = openat(dirfd, name, O_RDONLY | O_CLOEXEC);
fd = __sys_openat(dirfd, name, O_RDONLY | O_CLOEXEC);
if (fd >= 0) {
*fdp = fd;
len = strlen(fdstr) + strlen(name) + 3;