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Mark internal grp/pwd/shadow functions with attribute_hidden [BZ #18822]

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Mark internal grp/pwd/shadow functions with attribute_hidden to allow
direct access within libc.so and libc.a without using GOT nor PLT.

	[BZ #18822]
	* include/grp.h (__fgetgrent_r): Add attribute_hidden.
	(__getgrgid_r): Likewise.
	(__getgrnam_r): Likewise.
	* include/pwd.h (__getpwuid_r): Likewise.
	(__getpwnam_r): Likewise.
	(__fgetpwent_r): Likewise.
	* include/shadow.h (__getspnam_r): Likewise.
	(__sgetspent_r): Likewise.
	(__fgetspent_r): Likewise.
This commit is contained in:
H.J. Lu 2017-10-01 15:12:57 -07:00
parent 7ec4b39ac4
commit 783cd767af
4 changed files with 23 additions and 9 deletions
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13
ChangeLog
View File

@ -1,3 +1,16 @@
2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822]
* include/grp.h (__fgetgrent_r): Add attribute_hidden.
(__getgrgid_r): Likewise.
(__getgrnam_r): Likewise.
* include/pwd.h (__getpwuid_r): Likewise.
(__getpwnam_r): Likewise.
(__fgetpwent_r): Likewise.
* include/shadow.h (__getspnam_r): Likewise.
(__sgetspent_r): Likewise.
(__fgetspent_r): Likewise.
2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822]

6
include/grp.h
View File

@ -12,12 +12,12 @@ extern int __old_getgrent_r (struct group *__resultbuf, char *buffer,
size_t __buflen, struct group **__result);
extern int __fgetgrent_r (FILE * __stream, struct group *__resultbuf,
char *buffer, size_t __buflen,
struct group **__result);
struct group **__result) attribute_hidden;
/* Search for an entry with a matching group ID. */
extern int __getgrgid_r (__gid_t __gid, struct group *__resultbuf,
char *__buffer, size_t __buflen,
struct group **__result);
struct group **__result) attribute_hidden;
extern int __old_getgrgid_r (__gid_t __gid, struct group *__resultbuf,
char *__buffer, size_t __buflen,
struct group **__result);
@ -25,7 +25,7 @@ extern int __old_getgrgid_r (__gid_t __gid, struct group *__resultbuf,
/* Search for an entry with a matching group name. */
extern int __getgrnam_r (const char *__name, struct group *__resultbuf,
char *__buffer, size_t __buflen,
struct group **__result);
struct group **__result) attribute_hidden;
extern int __old_getgrnam_r (const char *__name, struct group *__resultbuf,
char *__buffer, size_t __buflen,
struct group **__result);

6
include/pwd.h
View File

@ -10,19 +10,19 @@ extern int __old_getpwent_r (struct passwd *__resultbuf, char *__buffer,
size_t __buflen, struct passwd **__result);
extern int __getpwuid_r (__uid_t __uid, struct passwd *__resultbuf,
char *__buffer, size_t __buflen,
struct passwd **__result);
struct passwd **__result) attribute_hidden;
extern int __old_getpwuid_r (__uid_t __uid, struct passwd *__resultbuf,
char *__buffer, size_t __buflen,
struct passwd **__result);
extern int __getpwnam_r (const char *__name, struct passwd *__resultbuf,
char *__buffer, size_t __buflen,
struct passwd **__result);
struct passwd **__result) attribute_hidden;
extern int __old_getpwnam_r (const char *__name, struct passwd *__resultbuf,
char *__buffer, size_t __buflen,
struct passwd **__result);
extern int __fgetpwent_r (FILE * __stream, struct passwd *__resultbuf,
char *__buffer, size_t __buflen,
struct passwd **__result);
struct passwd **__result) attribute_hidden;
#include <nss.h>

7
include/shadow.h
View File

@ -11,16 +11,17 @@ extern int __old_getspent_r (struct spwd *__result_buf, char *__buffer,
size_t __buflen, struct spwd **__result);
extern int __getspnam_r (const char *__name, struct spwd *__result_buf,
char *__buffer, size_t __buflen,
struct spwd **__result);
struct spwd **__result) attribute_hidden;
extern int __old_getspnam_r (const char *__name, struct spwd *__result_buf,
char *__buffer, size_t __buflen,
struct spwd **__result);
extern int __sgetspent_r (const char *__string,
struct spwd *__result_buf, char *__buffer,
size_t __buflen, struct spwd **__result);
size_t __buflen, struct spwd **__result)
attribute_hidden;
extern int __fgetspent_r (FILE *__stream, struct spwd *__result_buf,
char *__buffer, size_t __buflen,
struct spwd **__result);
struct spwd **__result) attribute_hidden;
extern int __lckpwdf (void);
extern int __ulckpwdf (void);