diff options
Diffstat (limited to 'csu/libc-start.c')
| -rw-r--r-- | csu/libc-start.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/csu/libc-start.c b/csu/libc-start.c index 04b013b770..46e56126bb 100644 --- a/csu/libc-start.c +++ b/csu/libc-start.c @@ -37,6 +37,12 @@ extern void __pthread_initialize_minimal (void); in thread local area. */ uintptr_t __stack_chk_guard attribute_relro; # endif +# ifndef THREAD_SET_POINTER_GUARD +/* Only exported for architectures that don't store the pointer guard + value in thread local area. */ +uintptr_t __pointer_chk_guard_local + attribute_relro attribute_hidden __attribute__ ((nocommon)); +# endif #endif #ifdef HAVE_PTR_NTHREADS @@ -197,6 +203,16 @@ LIBC_START_MAIN (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL), # else __stack_chk_guard = stack_chk_guard; # endif + + /* Set up the pointer guard value. */ + uintptr_t pointer_chk_guard = _dl_setup_pointer_guard (_dl_random, + stack_chk_guard); +# ifdef THREAD_SET_POINTER_GUARD + THREAD_SET_POINTER_GUARD (pointer_chk_guard); +# else + __pointer_chk_guard_local = pointer_chk_guard; +# endif + #endif /* Register the destructor of the dynamic linker if there is any. */ |