diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86_64/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/sysdep.h | 39 |
1 files changed, 6 insertions, 33 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/sysdep.h b/sysdeps/unix/sysv/linux/x86_64/sysdep.h index 5dfffca455..fd92d7ae16 100644 --- a/sysdeps/unix/sysv/linux/x86_64/sysdep.h +++ b/sysdeps/unix/sysv/linux/x86_64/sysdep.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. +/* Copyright (C) 2001,02,03,04 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -119,7 +119,7 @@ # define SYSCALL_ERROR_HANDLER \ 0: \ leaq rtld_errno(%rip), %rcx; \ - xorl %edx, %edx; \ + xorq %rdx, %rdx; \ subq %rax, %rdx; \ movl %edx, (%rcx); \ orq $-1, %rax; \ @@ -133,7 +133,7 @@ # define SYSCALL_ERROR_HANDLER \ 0: \ movq SYSCALL_ERROR_ERRNO@GOTTPOFF(%rip), %rcx;\ - xorl %edx, %edx; \ + xorq %rdx, %rdx; \ subq %rax, %rdx; \ movl %edx, %fs:(%rcx); \ orq $-1, %rax; \ @@ -143,7 +143,7 @@ Note that errno occupies only 4 bytes. */ # define SYSCALL_ERROR_HANDLER \ 0: \ - xorl %edx, %edx; \ + xorq %rdx, %rdx; \ subq %rax, %rdx; \ pushq %rdx; \ cfi_adjust_cfa_offset(8); \ @@ -161,7 +161,7 @@ #else /* Not _LIBC_REENTRANT. */ # define SYSCALL_ERROR_HANDLER \ 0:movq errno@GOTPCREL(%RIP), %rcx; \ - xorl %edx, %edx; \ + xorq %rdx, %rdx; \ subq %rax, %rdx; \ movl %edx, (%rcx); \ orq $-1, %rax; \ @@ -208,7 +208,7 @@ #undef DO_CALL #define DO_CALL(syscall_name, args) \ DOARGS_##args \ - movl $SYS_ify (syscall_name), %eax; \ + movq $SYS_ify (syscall_name), %rax; \ syscall; #define DOARGS_0 /* nothing */ @@ -311,31 +311,4 @@ #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. */ -# ifdef __ASSEMBLER__ -# define PTR_MANGLE(reg) xorq __pointer_chk_guard_local(%rip), reg -# define PTR_DEMANGLE(reg) PTR_MANGLE (reg) -# else -# define PTR_MANGLE(reg) asm ("xorq __pointer_chk_guard_local(%%rip), %0"\ - : "=r" (reg) : "0" (reg)) -# define PTR_DEMANGLE(reg) PTR_MANGLE (reg) -# endif -#else -# ifdef __ASSEMBLER__ -# define PTR_MANGLE(reg) xorq %fs:POINTER_GUARD, reg -# define PTR_DEMANGLE(reg) PTR_MANGLE (reg) -# else -# define PTR_MANGLE(var) asm ("xorq %%fs:%c2, %0" \ - : "=r" (var) \ - : "0" (var), \ - "i" (offsetof (tcbhead_t, \ - pointer_guard))) -# define PTR_DEMANGLE(var) PTR_MANGLE (var) -# endif -#endif - #endif /* linux/x86_64/sysdep.h */ |