diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/dl-reloc.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/elf/dl-reloc.c b/elf/dl-reloc.c index 9c2705d539..b72287d984 100644 --- a/elf/dl-reloc.c +++ b/elf/dl-reloc.c @@ -26,6 +26,7 @@ #include <sys/types.h> #include <_itoa.h> #include "dynamic-link.h" +#include <libc-internal.h> /* Statistics function. */ #ifdef SHARED @@ -74,9 +75,9 @@ _dl_try_allocate_static_tls (struct link_map *map) map->l_tls_offset = GL(dl_tls_static_used) = offset; #elif TLS_DTV_AT_TP /* dl_tls_static_used includes the TCB at the beginning. */ - size_t offset = (((GL(dl_tls_static_used) - - map->l_tls_firstbyte_offset - + map->l_tls_align - 1) & -map->l_tls_align) + size_t offset = (ALIGN_UP(GL(dl_tls_static_used) + - map->l_tls_firstbyte_offset, + map->l_tls_align) + map->l_tls_firstbyte_offset); size_t used = offset + map->l_tls_blocksize; @@ -201,11 +202,10 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[], struct textrels *newp; newp = (struct textrels *) alloca (sizeof (*newp)); - newp->len = (((ph->p_vaddr + ph->p_memsz + GLRO(dl_pagesize) - 1) - & ~(GLRO(dl_pagesize) - 1)) - - (ph->p_vaddr & ~(GLRO(dl_pagesize) - 1))); - newp->start = ((ph->p_vaddr & ~(GLRO(dl_pagesize) - 1)) - + (caddr_t) l->l_addr); + newp->len = ALIGN_UP (ph->p_vaddr + ph->p_memsz, GLRO(dl_pagesize)) + - ALIGN_DOWN (ph->p_vaddr, GLRO(dl_pagesize)); + newp->start = PTR_ALIGN_DOWN (ph->p_vaddr, GLRO(dl_pagesize)) + + (caddr_t) l->l_addr; if (__mprotect (newp->start, newp->len, PROT_READ|PROT_WRITE) < 0) { @@ -324,11 +324,13 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[], void internal_function _dl_protect_relro (struct link_map *l) { - ElfW(Addr) start = ((l->l_addr + l->l_relro_addr) - & ~(GLRO(dl_pagesize) - 1)); - ElfW(Addr) end = ((l->l_addr + l->l_relro_addr + l->l_relro_size) - & ~(GLRO(dl_pagesize) - 1)); - + ElfW(Addr) start = ALIGN_DOWN((l->l_addr + + l->l_relro_addr), + GLRO(dl_pagesize)); + ElfW(Addr) end = ALIGN_DOWN((l->l_addr + + l->l_relro_addr + + l->l_relro_size), + GLRO(dl_pagesize)); if (start != end && __mprotect ((void *) start, end - start, PROT_READ) < 0) { |