diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h b/sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h index 486c30d300..ea3663b37e 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h +++ b/sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h @@ -87,46 +87,4 @@ #endif /* __ASSEMBLER__ */ -/* Pointer mangling support. */ -#undef PTR_MANGLE -#undef PTR_DEMANGLE - -#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. */ -# ifdef __ASSEMBLER__ -# define PTR_MANGLE(reg) xorl __pointer_chk_guard_local(%rip), reg; \ - roll $17, reg -# define PTR_DEMANGLE(reg) rorl $17, reg; \ - xorl __pointer_chk_guard_local(%rip), reg -# else -# define PTR_MANGLE(reg) asm ("xorl __pointer_chk_guard_local(%%rip), %0\n" \ - "roll $17, %0" \ - : "=r" (reg) : "0" (reg)) -# define PTR_DEMANGLE(reg) asm ("rorl $17, %0\n" \ - "xorl __pointer_chk_guard_local(%%rip), %0" \ - : "=r" (reg) : "0" (reg)) -# endif -#else -# ifdef __ASSEMBLER__ -# define PTR_MANGLE(reg) xorl %fs:POINTER_GUARD, reg; \ - roll $17, reg -# define PTR_DEMANGLE(reg) rorl $17, reg; \ - xorl %fs:POINTER_GUARD, reg -# else -# define PTR_MANGLE(var) asm ("xorl %%fs:%c2, %0\n" \ - "roll $17, %0" \ - : "=r" (var) \ - : "0" (var), \ - "i" (offsetof (tcbhead_t, \ - pointer_guard))) -# define PTR_DEMANGLE(var) asm ("rorl $17, %0\n" \ - "xorl %%fs:%c2, %0" \ - : "=r" (var) \ - : "0" (var), \ - "i" (offsetof (tcbhead_t, \ - pointer_guard))) -# endif -#endif - #endif /* linux/x86_64/x32/sysdep.h */ |