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Make PowerPC64 default to nonexecutable stack

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This commit is contained in:
Ryan S. Arnold
2010-12-19 22:49:01 -05:00
committed by Ulrich Drepper
parent db753e2cfb
commit 30950a5fd2
13 changed files with 104 additions and 18 deletions
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6
elf/dl-support.c
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@ -32,6 +32,7 @@
#include <dl-procinfo.h>
#include <unsecvars.h>
#include <hp-timing.h>
#include <stackinfo.h>
extern char *__progname;
char **_dl_argv = &__progname; /* This is checked for some error messages. */
@ -134,8 +135,9 @@ uint64_t _dl_hwcap __attribute__ ((nocommon));
setting _dl_hwcap nonzero below, but we do anyway. */
uint64_t _dl_hwcap_mask __attribute__ ((nocommon));
/* Prevailing state of the stack, PF_X indicating it's executable. */
ElfW(Word) _dl_stack_flags = PF_R|PF_W|PF_X;
/* Prevailing state of the stack. Generally this includes PF_X, indicating it's
* executable but this isn't true for all platforms. */
ElfW(Word) _dl_stack_flags = DEFAULT_STACK_PERMS;
/* If loading a shared object requires that we make the stack executable
when it was not, we do it by calling this function.