diff options
Diffstat (limited to 'sysdeps/arm/sysdep.h')
| -rw-r--r-- | sysdeps/arm/sysdep.h | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/sysdeps/arm/sysdep.h b/sysdeps/arm/sysdep.h index f19146b85f..ffd848de88 100644 --- a/sysdeps/arm/sysdep.h +++ b/sysdeps/arm/sysdep.h @@ -293,47 +293,3 @@ #else # define PC_OFS 8 #endif - -/* Pointer mangling support. */ -#if (IS_IN (rtld) \ - || (!defined SHARED && (IS_IN (libc) || IS_IN (libpthread)))) -# ifdef __ASSEMBLER__ -# define PTR_MANGLE_LOAD(guard, tmp) \ - LDR_HIDDEN (guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard_local), 0) -# define PTR_MANGLE(dst, src, guard, tmp) \ - PTR_MANGLE_LOAD(guard, tmp); \ - PTR_MANGLE2(dst, src, guard) -/* Use PTR_MANGLE2 for efficiency if guard is already loaded. */ -# define PTR_MANGLE2(dst, src, guard) \ - eor dst, src, guard -# define PTR_DEMANGLE(dst, src, guard, tmp) \ - PTR_MANGLE (dst, src, guard, tmp) -# define PTR_DEMANGLE2(dst, src, guard) \ - PTR_MANGLE2 (dst, src, guard) -# else -extern uintptr_t __pointer_chk_guard_local attribute_relro attribute_hidden; -# define PTR_MANGLE(var) \ - (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard_local) -# define PTR_DEMANGLE(var) PTR_MANGLE (var) -# endif -#else -# ifdef __ASSEMBLER__ -# define PTR_MANGLE_LOAD(guard, tmp) \ - LDR_GLOBAL (guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard), 0); -# define PTR_MANGLE(dst, src, guard, tmp) \ - PTR_MANGLE_LOAD(guard, tmp); \ - PTR_MANGLE2(dst, src, guard) -/* Use PTR_MANGLE2 for efficiency if guard is already loaded. */ -# define PTR_MANGLE2(dst, src, guard) \ - eor dst, src, guard -# define PTR_DEMANGLE(dst, src, guard, tmp) \ - PTR_MANGLE (dst, src, guard, tmp) -# define PTR_DEMANGLE2(dst, src, guard) \ - PTR_MANGLE2 (dst, src, guard) -# else -extern uintptr_t __pointer_chk_guard attribute_relro; -# define PTR_MANGLE(var) \ - (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard) -# define PTR_DEMANGLE(var) PTR_MANGLE (var) -# endif -#endif |