diff options
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/ldsodefs.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h index 81cce2e4d5..8426b5cbd8 100644 --- a/sysdeps/generic/ldsodefs.h +++ b/sysdeps/generic/ldsodefs.h @@ -416,10 +416,12 @@ struct rtld_global #endif #include <dl-procruntime.c> +#if !PTHREAD_IN_LIBC /* If loading a shared object requires that we make the stack executable when it was not, we do it by calling this function. It returns an errno code or zero on success. */ EXTERN int (*_dl_make_stack_executable_hook) (void **); +#endif /* Prevailing state of the stack, PF_X indicating it's executable. */ EXTERN ElfW(Word) _dl_stack_flags; @@ -717,10 +719,17 @@ extern const ElfW(Phdr) *_dl_phdr; extern size_t _dl_phnum; #endif +#if PTHREAD_IN_LIBC +/* This function changes the permissions of all stacks (not just those + of the main stack). */ +int _dl_make_stacks_executable (void **stack_endp) attribute_hidden; +#else /* This is the initial value of GL(dl_make_stack_executable_hook). - A threads library can change it. */ + A threads library can change it. The ld.so implementation changes + the permissions of the main stack only. */ extern int _dl_make_stack_executable (void **stack_endp); rtld_hidden_proto (_dl_make_stack_executable) +#endif /* Variable pointing to the end of the stack (or close to it). This value must be constant over the runtime of the application. Some programs |