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| author | Roland McGrath <roland@gnu.org> | 2003-09-23 12:06:48 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2003-09-23 12:06:48 +0000 |
| commit | ecdeaac05f73c29eca92eecd55ad4fb8513c7771 (patch) | |
| tree | e0cc585c839b68bc3e698f09d51c1f0b78c3cbef /sysdeps/generic/dl-execstack.c | |
| parent | 1deb5779e249255d4247529facd65025c1787cd1 (diff) | |
| download | glibc-ecdeaac05f73c29eca92eecd55ad4fb8513c7771.zip glibc-ecdeaac05f73c29eca92eecd55ad4fb8513c7771.tar.gz glibc-ecdeaac05f73c29eca92eecd55ad4fb8513c7771.tar.bz2 | |
2003-09-23 Roland McGrath <roland@redhat.com>
* sysdeps/generic/ldsodefs.h (struct rtld_global): Add _dl_stack_flags
and _dl_make_stack_executable_hook. Declare _dl_make_stack_executable.
* elf/rtld.c (_rtld_global): Add initializer for _dl_stack_flags.
(dl_main): Reset _dl_stack_flags according to PT_GNU_STACK phdr.
Initialize _dl_make_stack_executable_hook.
* elf/dl-support.c: Define those new variables.
(_dl_non_dynamic_init): Scan phdrs for PT_GNU_STACK.
(_dl_phdr): Fix type.
* elf/dl-load.c (_dl_map_object_from_fd): Grok PT_GNU_STACK phdr and
enable execute permission for the stack if necessary.
* sysdeps/generic/dl-execstack.c: New file.
* elf/Makefile (dl-routines): Add it.
* elf/Versions (ld: GLIBC_PRIVATE): Add _dl_make_stack_executable.
* sysdeps/unix/sysv/linux/dl-execstack.c: New file.
Diffstat (limited to 'sysdeps/generic/dl-execstack.c')
| -rw-r--r-- | sysdeps/generic/dl-execstack.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sysdeps/generic/dl-execstack.c b/sysdeps/generic/dl-execstack.c new file mode 100644 index 0000000..04f87cf --- /dev/null +++ b/sysdeps/generic/dl-execstack.c @@ -0,0 +1,32 @@ +/* Stack executability handling for GNU dynamic linker. Stub version. + Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <ldsodefs.h> +#include <errno.h> + +/* There is no portable way to know the bounds of the initial thread's stack + so as to mprotect it. */ + +int +internal_function +_dl_make_stack_executable (void) +{ + return ENOSYS; +} +rtld_hidden_def (_dl_make_stack_executable) |