diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/dl-execstack.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/dl-execstack.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-execstack.c b/sysdeps/unix/sysv/linux/dl-execstack.c index 48512ede7d..d3b048192c 100644 --- a/sysdeps/unix/sysv/linux/dl-execstack.c +++ b/sysdeps/unix/sysv/linux/dl-execstack.c @@ -31,7 +31,8 @@ internal_function _dl_make_stack_executable (void **stack_endp) { /* This gives us the highest/lowest page that needs to be changed. */ - uintptr_t page = (uintptr_t) __libc_stack_end & -(intptr_t) GL(dl_pagesize); + uintptr_t page = ((uintptr_t) __libc_stack_end + & -(intptr_t) GLRO(dl_pagesize)); /* Challenge the caller. */ if (__builtin_expect (*stack_endp != __libc_stack_end, 0)) @@ -46,7 +47,7 @@ _dl_make_stack_executable (void **stack_endp) if (! no_growsdown) # endif { - if (__builtin_expect (__mprotect ((void *) page, GL(dl_pagesize), + if (__builtin_expect (__mprotect ((void *) page, GLRO(dl_pagesize), PROT_READ|PROT_WRITE|PROT_EXEC |PROT_GROWSDOWN) == 0, 1)) goto return_success; @@ -67,8 +68,8 @@ _dl_make_stack_executable (void **stack_endp) so as to have extended the GROWSDOWN mapping to lower pages. */ # if __ASSUME_PROT_GROWSUPDOWN == 0 - size_t size = GL(dl_pagesize) * 8; - page = page + GL(dl_pagesize) - size; + size_t size = GLRO(dl_pagesize) * 8; + page = page + GLRO(dl_pagesize) - size; while (1) { if (__mprotect ((void *) page, size, @@ -80,7 +81,7 @@ _dl_make_stack_executable (void **stack_endp) if (errno != ENOMEM) /* Unexpected failure mode. */ return errno; - if (size == GL(dl_pagesize)) + if (size == GLRO(dl_pagesize)) /* We just tried to mprotect the top hole page and failed. We are done. */ break; @@ -101,7 +102,7 @@ _dl_make_stack_executable (void **stack_endp) if (! no_growsup) # endif { - if (__mprotect ((void *) page, GL(dl_pagesize), + if (__mprotect ((void *) page, GLRO(dl_pagesize), PROT_READ|PROT_WRITE|PROT_EXEC|PROT_GROWSUP) == 0) goto return_success; # if __ASSUME_PROT_GROWSUPDOWN == 0 @@ -121,7 +122,7 @@ _dl_make_stack_executable (void **stack_endp) so as to have extended the GROWSUP mapping to higher pages. */ # if __ASSUME_PROT_GROWSUPDOWN == 0 - size_t size = GL(dl_pagesize) * 8; + size_t size = GLRO(dl_pagesize) * 8; while (1) { if (__mprotect ((void *) page, size, @@ -133,7 +134,7 @@ _dl_make_stack_executable (void **stack_endp) if (errno != ENOMEM) /* Unexpected failure mode. */ return errno; - if (size == GL(dl_pagesize)) + if (size == GLRO(dl_pagesize)) /* We just tried to mprotect the lowest hole page and failed. We are done. */ break; |