diff options
Diffstat (limited to 'elf/rtld.c')
| -rw-r--r-- | elf/rtld.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/elf/rtld.c b/elf/rtld.c index 8f9fc7c063..c17f621cc9 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -98,6 +98,8 @@ struct rtld_global _rtld_global = ._dl_fpu_control = _FPU_DEFAULT, ._dl_correct_cache_id = _DL_CACHE_DEFAULT_ID, ._dl_hwcap_mask = HWCAP_IMPORTANT, + /* Default presumption without further information is executable stack. */ + ._dl_stack_flags = PF_R|PF_W|PF_X, #ifdef _LIBC_REENTRANT ._dl_load_lock = _RTLD_LOCK_RECURSIVE_INITIALIZER #endif @@ -249,7 +251,7 @@ _dl_start_final (void *arg, struct dl_start_final_info *info) file access. It will call `dl_main' (below) to do all the real work of the dynamic linker, and then unwind our frame and run the user entry point on the same stack we entered on. */ - start_addr = _dl_sysdep_start (arg, &dl_main); + start_addr = _dl_sysdep_start (arg, &dl_main); #ifndef HP_TIMING_NONAVAIL if (HP_TIMING_AVAIL) @@ -903,6 +905,9 @@ of this helper program; chances are you did not intend to run this program.\n\ } break; #endif + case PT_GNU_STACK: + GL(dl_stack_flags) = ph->p_flags; + break; } #ifdef USE_TLS /* Adjust the address of the TLS initialization image in case @@ -949,6 +954,10 @@ of this helper program; chances are you did not intend to run this program.\n\ _exit (has_interp ? 0 : 2); } + /* The explicit initialization here is cheaper than processing the reloc + in the _rtld_local definition's initializer. */ + GL(dl_make_stack_executable_hook) = &_dl_make_stack_executable; + if (! rtld_is_main) /* Initialize the data structures for the search paths for shared objects. */ |