diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/arm/sysdep.h | 48 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/arm/sysdep.h | 44 |
2 files changed, 48 insertions, 44 deletions
diff --git a/sysdeps/arm/sysdep.h b/sysdeps/arm/sysdep.h index 7f34ab042f..84b07e1476 100644 --- a/sysdeps/arm/sysdep.h +++ b/sysdeps/arm/sysdep.h @@ -19,6 +19,10 @@ #include <sysdeps/generic/sysdep.h> #include <features.h> +#ifndef __ASSEMBLER__ +# include <stdint.h> +#endif + /* The __ARM_ARCH define is provided by gcc 4.8. Construct it otherwise. */ #ifndef __ARM_ARCH # ifdef __ARM_ARCH_2__ @@ -286,3 +290,47 @@ #else # define PC_OFS 8 #endif + +/* Pointer mangling support. */ +#if (defined NOT_IN_libc && defined IS_IN_rtld) || \ + (!defined SHARED && (!defined NOT_IN_libc || defined IS_IN_libpthread)) +# ifdef __ASSEMBLER__ +# define PTR_MANGLE_LOAD(guard, tmp) \ + LDST_PCREL(ldr, guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard_local)); +# 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) \ + LDST_GLOBAL(ldr, guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard)); +# 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 diff --git a/sysdeps/unix/sysv/linux/arm/sysdep.h b/sysdeps/unix/sysv/linux/arm/sysdep.h index 700c1cec7e..52e27d0443 100644 --- a/sysdeps/unix/sysv/linux/arm/sysdep.h +++ b/sysdeps/unix/sysv/linux/arm/sysdep.h @@ -435,48 +435,4 @@ __local_syscall_error: \ #endif /* __ASSEMBLER__ */ -/* Pointer mangling support. */ -#if (defined NOT_IN_libc && defined IS_IN_rtld) || \ - (!defined SHARED && (!defined NOT_IN_libc || defined IS_IN_libpthread)) -# ifdef __ASSEMBLER__ -# define PTR_MANGLE_LOAD(guard, tmp) \ - LDST_PCREL(ldr, guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard_local)); -# 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) \ - LDST_GLOBAL(ldr, guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard)); -# 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 - #endif /* linux/arm/sysdep.h */ |