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GNU C Library master sources branch master updated. glibc-2.22-645-g730bbab
- From: hjl at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 6 Jan 2016 20:55:13 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.22-645-g730bbab
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=730bbab2c39dd615c31c924041b4d16d7f107ae0
commit 730bbab2c39dd615c31c924041b4d16d7f107ae0
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Jan 6 12:37:04 2016 -0800
Mark internal unistd functions hidden in ld.so
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.
diff --git a/ChangeLog b/ChangeLog
index 6c7fef4..72614fe 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
2016-01-05 H.J. Lu <hongjiu.lu@intel.com>
+ [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.
+
+2016-01-05 H.J. Lu <hongjiu.lu@intel.com>
+
[BZ #19122]
* include/sys/mman.h [IS_IN (rtld)]: Include <dl-mman.h>.
* sysdeps/generic/dl-mman.h: New file.
diff --git a/include/unistd.h b/include/unistd.h
index cb41637..5152f64 100644
--- a/include/unistd.h
+++ b/include/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
diff --git a/sysdeps/generic/dl-unistd.h b/sysdeps/generic/dl-unistd.h
new file mode 100644
index 0000000..98da672
--- /dev/null
+++ b/sysdeps/generic/dl-unistd.h
@@ -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;
diff --git a/sysdeps/mach/hurd/dl-unistd.h b/sysdeps/mach/hurd/dl-unistd.h
new file mode 100644
index 0000000..14e5f6b
--- /dev/null
+++ b/sysdeps/mach/hurd/dl-unistd.h
@@ -0,0 +1,28 @@
+/* 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/>. */
+
+/* __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. */
+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;
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 7 +++++++
include/unistd.h | 6 +++++-
sysdeps/generic/{dl-mman.h => dl-unistd.h} | 16 ++++++++++++----
.../{generic/dl-mman.h => mach/hurd/dl-unistd.h} | 14 ++++++++++----
4 files changed, 34 insertions(+), 9 deletions(-)
copy sysdeps/generic/{dl-mman.h => dl-unistd.h} (57%)
copy sysdeps/{generic/dl-mman.h => mach/hurd/dl-unistd.h} (62%)
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