diff options
Diffstat (limited to 'elf/dl-load.c')
| -rw-r--r-- | elf/dl-load.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/elf/dl-load.c b/elf/dl-load.c index c6af485..e7747fa 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -902,12 +902,14 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp, case PT_LOAD: /* A load command tells us to map in part of the file. We record the load commands and process them all later. */ - if ((ph->p_align & (GL(dl_pagesize) - 1)) != 0) + if (__builtin_expect ((ph->p_align & (GL(dl_pagesize) - 1)) != 0, + 0)) { errstring = N_("ELF load command alignment not page-aligned"); goto call_lose; } - if (((ph->p_vaddr - ph->p_offset) & (ph->p_align - 1)) != 0) + if (__builtin_expect (((ph->p_vaddr - ph->p_offset) + & (ph->p_align - 1)) != 0, 0)) { errstring = N_("ELF load command address/offset not properly aligned"); @@ -988,7 +990,7 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp, l->l_map_start = (ElfW(Addr)) __mmap ((void *) mappref, maplength, c->prot, MAP_COPY | MAP_FILE, fd, c->mapoff); - if ((void *) l->l_map_start == MAP_FAILED) + if (__builtin_expect ((void *) l->l_map_start == MAP_FAILED, 0)) { map_error: errstring = N_("failed to map segment from shared object"); @@ -1068,8 +1070,13 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp, if ((c->prot & PROT_WRITE) == 0) { /* Dag nab it. */ - if (__mprotect ((caddr_t) (zero & ~(GL(dl_pagesize) - 1)), - GL(dl_pagesize), c->prot|PROT_WRITE) < 0) + if (__builtin_expect (__mprotect ((caddr_t) + (zero + & ~(GL(dl_pagesize) + - 1)), + GL(dl_pagesize), + c->prot|PROT_WRITE) < 0, + 0)) { errstring = N_("cannot change memory protections"); goto call_lose_errno; @@ -1088,7 +1095,7 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp, mapat = __mmap ((caddr_t) zeropage, zeroend - zeropage, c->prot, MAP_ANON|MAP_PRIVATE|MAP_FIXED, ANONFD, 0); - if (mapat == MAP_FAILED) + if (__builtin_expect (mapat == MAP_FAILED, 0)) { errstring = N_("cannot map zero-fill pages"); goto call_lose_errno; @@ -1137,7 +1144,7 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp, if (l->l_ld == 0) { - if (type == ET_DYN) + if (__builtin_expect (type == ET_DYN, 0)) { errstring = N_("object file has no dynamic section"); goto call_lose; @@ -1811,7 +1818,7 @@ _dl_map_object (struct link_map *loader, const char *name, int preloaded, fd = open_path (name, namelen, preloaded, &rtld_search_dirs, &realname, &fb); - /* Add another newline when we a tracing the library loading. */ + /* Add another newline when we are tracing the library loading. */ if (__builtin_expect (GL(dl_debug_mask) & DL_DEBUG_LIBS, 0)) INTUSE(_dl_debug_printf) ("\n"); } |