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Update.

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2004-03-26  Ulrich Drepper  <drepper@redhat.com>

	* elf/dl-caller.c: New file.
	* include/caller.h: New file.
	* Makefile (distribute): Add include/caller.h.
	* elf/Makefile (dl-routines): Add dl-caller.
	* elf/dl-load.c (_dl_map_object_from_fd): Record l_text_end.
	* elf/dl-open.c (check_libc_caller): Removed.
	(dl_open_worker): Use __check_caller instead.
	* elf/rtld.c (_rtld_global_ro): Initialize _dl_check_caller.
	(_dl_start_final): Record l_text_end for ld.so map.
	(dl_main): Record l_text_end for main object and vdso.
	* include/link.h (struct link_map): Add l_text_end field.
	* sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Add
	_dl_check_caller field.
	Define enum allowmask.  Add declaration of _dl_check_caller.
	* sysdeps/unix/sysv/linux/dl-execstack.c: Also use __check_caller test.
This commit is contained in:
Ulrich Drepper
2004-03-27 03:40:33 +00:00
parent 17c263876b
commit eec8b6cae5
12 changed files with 159 additions and 79 deletions
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11
nptl/allocatestack.c
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@ -676,9 +676,10 @@ int
internal_function
__make_stacks_executable (void **stack_endp)
{
/* Challenge the caller. */
if (*stack_endp != __libc_stack_end)
return EPERM;
/* First the main thread's stack. */
int err = _dl_make_stack_executable (stack_endp);
if (err != 0)
return err;
#ifdef NEED_SEPARATE_REGISTER_STACK
const size_t pagemask = ~(__getpagesize () - 1);
@ -686,7 +687,6 @@ __make_stacks_executable (void **stack_endp)
lll_lock (stack_cache_lock);
int err = 0;
list_t *runp;
list_for_each (runp, &stack_used)
{
@ -716,9 +716,6 @@ __make_stacks_executable (void **stack_endp)
lll_unlock (stack_cache_lock);
if (err == 0)
err = _dl_make_stack_executable (stack_endp);
return err;
}