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authorH.J. Lu <hjl.tools@gmail.com>2017-10-01 15:12:57 -0700
committerH.J. Lu <hjl.tools@gmail.com>2017-10-01 15:13:13 -0700
commit783cd767af5f3746b639f76b1de5e0e3c3d64683 (patch)
tree247570336e77103dceb036687a40c8ac3b38c41d
parent7ec4b39ac484ba65e011dde4e8ff0b7f478efc7c (diff)
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Mark internal grp/pwd/shadow functions with attribute_hidden [BZ #18822]
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.
-rw-r--r--ChangeLog13
-rw-r--r--include/grp.h6
-rw-r--r--include/pwd.h6
-rw-r--r--include/shadow.h7
4 files changed, 23 insertions, 9 deletions
diff --git a/ChangeLog b/ChangeLog
index 1c2b7e97b4..f626ba48a9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,19 @@
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]
* include/unistd.h (__access): Add attribute_hidden.
(__lseek64): Likewise.
(__libc_pread64): Likewise.
diff --git a/include/grp.h b/include/grp.h
index 0fb5c9a574..871701adbe 100644
--- a/include/grp.h
+++ b/include/grp.h
@@ -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);
diff --git a/include/pwd.h b/include/pwd.h
index 3b0f72540c..fc995065d9 100644
--- a/include/pwd.h
+++ b/include/pwd.h
@@ -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>
diff --git a/include/shadow.h b/include/shadow.h
index 124a1ab50a..366ea83482 100644
--- a/include/shadow.h
+++ b/include/shadow.h
@@ -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);