diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/i686/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/i686/sysdep.h | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/i686/sysdep.h b/sysdeps/unix/sysv/linux/i386/i686/sysdep.h deleted file mode 100644 index 1cd335ad7b..0000000000 --- a/sysdeps/unix/sysv/linux/i386/i686/sysdep.h +++ /dev/null @@ -1,99 +0,0 @@ -/* Copyright (C) 1998, 2000, 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper, <drepper@cygnus.com>, 1998. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _LINUX_I386_I686_SYSDEP_H -#define _LINUX_I386_I686_SYSDEP_H 1 - -/* There is some commonality. */ -#include <sysdeps/unix/sysv/linux/i386/sysdep.h> -#include <bp-sym.h> -#include <bp-asm.h> - -/* We define special versions of the error handler code to match the i686's - deep branch prediction mechanism. */ -#ifdef PIC -# undef SYSCALL_ERROR_HANDLER - -# undef SETUP_PIC_REG -# ifndef HAVE_HIDDEN -# define SETUP_PIC_REG(reg) \ - call 1f; \ - .subsection 1; \ -1:movl (%esp), %e##reg; \ - ret; \ - .previous -# else -# define SETUP_PIC_REG(reg) \ - .section .gnu.linkonce.t.__i686.get_pc_thunk.reg,"ax",@progbits; \ - .globl __i686.get_pc_thunk.reg; \ - .hidden __i686.get_pc_thunk.reg; \ - .type __i686.get_pc_thunk.reg,@function; \ -__i686.get_pc_thunk.reg: \ - movl (%esp), %e##reg; \ - ret; \ - .previous; \ - call __i686.get_pc_thunk.reg -# endif - -/* Store (- %eax) into errno through the GOT. */ -# ifdef _LIBC_REENTRANT -# if USE_TLS && HAVE___THREAD -# define SYSCALL_ERROR_HANDLER \ -0:SETUP_PIC_REG (cx); \ - addl $_GLOBAL_OFFSET_TABLE_, %ecx; \ - xorl %edx, %edx; \ - subl %eax, %edx; \ - movl %gs:0, %eax; \ - subl errno@gottpoff(%ecx), %eax; \ - movl %edx, (%eax); \ - orl $-1, %eax; \ - jmp L(pseudo_end); -# else -# define SYSCALL_ERROR_HANDLER \ -0:pushl %ebx; \ - SETUP_PIC_REG(bx); \ - addl $_GLOBAL_OFFSET_TABLE_, %ebx; \ - xorl %edx, %edx; \ - subl %eax, %edx; \ - pushl %edx; \ - PUSH_ERRNO_LOCATION_RETURN; \ - call BP_SYM (__errno_location)@PLT; \ - POP_ERRNO_LOCATION_RETURN; \ - popl %ecx; \ - popl %ebx; \ - movl %ecx, (%eax); \ - orl $-1, %eax; \ - jmp L(pseudo_end); -/* A quick note: it is assumed that the call to `__errno_location' does - not modify the stack! */ -# endif -# else -# define SYSCALL_ERROR_HANDLER \ -0:SETUP_PIC_REG(cx); \ - addl $_GLOBAL_OFFSET_TABLE_, %ecx; \ - xorl %edx, %edx; \ - subl %eax, %edx; \ - movl errno@GOT(%ecx), %ecx; \ - movl %edx, (%ecx); \ - orl $-1, %eax; \ - jmp L(pseudo_end); -# endif /* _LIBC_REENTRANT */ -#endif /* PIC */ - -#endif /* linux/i386/i686/sysdep.h */ |