diff options
| author | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2016-07-08 16:01:41 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2016-07-17 11:22:40 +0200 |
| commit | 4458cc330e6e5b7369151ebe172c00faceb43ade (patch) | |
| tree | eb96eb6ccda71a9b93b9f9b7d5cfda500d23d92b /libc/sysdeps/linux/i386/sysdep.h | |
| parent | ff58e44fc38474b1898c59caf9a5e75d0d8c6c57 (diff) | |
cleanup PTR_MANGLE/PTR_DEMANGLE support
As this is only implemented for a few architecture and not well
tested, just remove it.
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/i386/sysdep.h')
| -rw-r--r-- | libc/sysdeps/linux/i386/sysdep.h | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/libc/sysdeps/linux/i386/sysdep.h b/libc/sysdeps/linux/i386/sysdep.h index c92a10663..4fa47fcf2 100644 --- a/libc/sysdeps/linux/i386/sysdep.h +++ b/libc/sysdeps/linux/i386/sysdep.h @@ -396,34 +396,4 @@ __x86.get_pc_thunk.reg: \ cfi_restore (ebp); L(POPBP1): #endif /* __ASSEMBLER__ */ - - -/* Pointer mangling support. */ -#if defined NOT_IN_libc && defined IS_IN_rtld -/* We cannot use the thread descriptor because in ld.so we use setjmp - earlier than the descriptor is initialized. Using a global variable - is too complicated here since we have no PC-relative addressing mode. */ -#else -# ifdef __ASSEMBLER__ -# define PTR_MANGLE(reg) xorl %gs:POINTER_GUARD, reg; \ - roll $9, reg -# define PTR_DEMANGLE(reg) rorl $9, reg; \ - xorl %gs:POINTER_GUARD, reg -# else -# include <stddef.h> -# define PTR_MANGLE(var) __asm__ ("xorl %%gs:%c2, %0\n" \ - "roll $9, %0" \ - : "=r" (var) \ - : "0" (var), \ - "i" (offsetof (tcbhead_t, \ - pointer_guard))) -# define PTR_DEMANGLE(var) __asm__ ("rorl $9, %0\n" \ - "xorl %%gs:%c2, %0" \ - : "=r" (var) \ - : "0" (var), \ - "i" (offsetof (tcbhead_t, \ - pointer_guard))) -# endif -#endif - #endif /* linux/i386/sysdep.h */ |