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author | H.J. Lu <hjl.tools@gmail.com> | 2015-10-14 15:14:15 -0700 |
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committer | H.J. Lu <hjl.tools@gmail.com> | 2015-10-20 05:43:11 -0700 |
commit | 569475762b6e2caf8ffd253d48d27a9de7d5622d (patch) | |
tree | cc5d3d82d199b16485af8c74e448d79643f778c1 | |
parent | 9dd346ff431fc761f1b748bd4da8bb59f7652094 (diff) | |
download | glibc-569475762b6e2caf8ffd253d48d27a9de7d5622d.tar.gz glibc-569475762b6e2caf8ffd253d48d27a9de7d5622d.tar.xz glibc-569475762b6e2caf8ffd253d48d27a9de7d5622d.zip |
Mark ld.so internal mmap functions hidden in ld.so
Since ld.so internal mmap functions are only used internally in ld.so, they can be made hidden. Don't hide __mmap on Hurd, since __mmap in ld.so will be preempted by the one in libc.so after bootstrap. [BZ #19122] * include/sys/mman.h [IS_IN (rtld)]: Include <dl-mman.h>. * sysdeps/generic/dl-mman.h: New file. * sysdeps/mach/hurd/dl-mman.h: Likewise.
-rw-r--r-- | include/sys/mman.h | 4 | ||||
-rw-r--r-- | sysdeps/generic/dl-mman.h | 22 | ||||
-rw-r--r-- | sysdeps/mach/hurd/dl-mman.h | 23 |
3 files changed, 49 insertions, 0 deletions
diff --git a/include/sys/mman.h b/include/sys/mman.h index fd125ecb9c..7026f69f42 100644 --- a/include/sys/mman.h +++ b/include/sys/mman.h @@ -16,6 +16,10 @@ libc_hidden_proto (__madvise) /* This one is Linux specific. */ extern void *__mremap (void *__addr, size_t __old_len, size_t __new_len, int __flags, ...); + +# if IS_IN (rtld) +# include <dl-mman.h> +# endif #endif #endif diff --git a/sysdeps/generic/dl-mman.h b/sysdeps/generic/dl-mman.h new file mode 100644 index 0000000000..9087218508 --- /dev/null +++ b/sysdeps/generic/dl-mman.h @@ -0,0 +1,22 @@ +/* Functions with hidden attribute internal to ld.so, which are declared + in include/sys/mman.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 (__mmap) __mmap attribute_hidden; +extern __typeof (__mprotect) __mprotect attribute_hidden; +extern __typeof (__munmap) __munmap attribute_hidden; diff --git a/sysdeps/mach/hurd/dl-mman.h b/sysdeps/mach/hurd/dl-mman.h new file mode 100644 index 0000000000..f9d7996b6c --- /dev/null +++ b/sysdeps/mach/hurd/dl-mman.h @@ -0,0 +1,23 @@ +/* Functions with hidden attribute internal to ld.so, which are declared + in include/sys/mman.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/>. */ + +/* Can't hide __mmap on Hurd, since __mmap in ld.so will be preempted by + the one in libc.so after bootstrap. */ +extern __typeof (__mprotect) __mprotect attribute_hidden; +extern __typeof (__munmap) __munmap attribute_hidden; |