[2/2] Mark internal unistd functions hidden in ld.so
Commit Message
Since internal unistd functions are only used internally in ld.so and
libc.so, they can be made hidden. __close, __getcwd, __getpid,
__libc_read and __libc_write can't be hidden in ld.so on Hurd since they
will be preempted by the ones in libc.so after bootstrap.
[BZ #19122]
* include/unistd.h [IS_IN (rtld)]: Include <dl-unistd.h>.
* sysdeps/generic/dl-unistd.h: New file.
* sysdeps/mach/hurd/dl-unistd.h: Likewise.
---
include/unistd.h | 6 +++++-
sysdeps/generic/dl-unistd.h | 30 ++++++++++++++++++++++++++++++
sysdeps/mach/hurd/dl-unistd.h | 25 +++++++++++++++++++++++++
3 files changed, 60 insertions(+), 1 deletion(-)
create mode 100644 sysdeps/generic/dl-unistd.h
create mode 100644 sysdeps/mach/hurd/dl-unistd.h
@@ -158,7 +158,7 @@ rtld_hidden_proto (__libc_enable_secure)
/* Various internal function. */
-extern void __libc_check_standard_fds (void);
+extern void __libc_check_standard_fds (void) attribute_hidden;
/* Internal name for fork function. */
@@ -176,6 +176,10 @@ extern int __have_dup3 attribute_hidden;
extern int __getlogin_r_loginuid (char *name, size_t namesize)
attribute_hidden;
+# if IS_IN (rtld)
+# include <dl-unistd.h>
+# endif
+
__END_DECLS
# endif
new file mode 100644
@@ -0,0 +1,30 @@
+/* Functions with hidden attribute internal to ld.so, which are declared
+ in include/unistd.h. Generic version.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+extern __typeof (__access) __access attribute_hidden;
+extern __typeof (__brk) __brk attribute_hidden;
+extern __typeof (__close) __close attribute_hidden;
+extern __typeof (__getcwd) __getcwd attribute_hidden;
+extern __typeof (__getpid) __getpid attribute_hidden;
+extern __typeof (__libc_read) __libc_read attribute_hidden;
+extern __typeof (__libc_write) __libc_write attribute_hidden;
+extern __typeof (__lseek) __lseek attribute_hidden;
+extern __typeof (__profil) __profil attribute_hidden;
+extern __typeof (__read) __read attribute_hidden;
+extern __typeof (__sbrk) __sbrk attribute_hidden;
new file mode 100644
@@ -0,0 +1,25 @@
+/* Functions with hidden attribute internal to ld.so, which are declared
+ in include/unistd.h. Hurd version.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+extern __typeof (__access) __access attribute_hidden;
+extern __typeof (__brk) __brk attribute_hidden;
+extern __typeof (__lseek) __lseek attribute_hidden;
+extern __typeof (__profil) __profil attribute_hidden;
+extern __typeof (__read) __read attribute_hidden;
+extern __typeof (__sbrk) __sbrk attribute_hidden;