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Diffstat (limited to 'gcc/config/rs6000/tramp.asm')
-rw-r--r-- | gcc/config/rs6000/tramp.asm | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/gcc/config/rs6000/tramp.asm b/gcc/config/rs6000/tramp.asm deleted file mode 100644 index 133b988..0000000 --- a/gcc/config/rs6000/tramp.asm +++ /dev/null @@ -1,107 +0,0 @@ -/* Special support for trampolines - * - * Copyright (C) 1996, 1997, 2000, 2007, 2008, 2009 Free Software Foundation, Inc. - * Written By Michael Meissner - * - * This file is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 3, or (at your option) any - * later version. - * - * This file 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 - * General Public License for more details. - * - * Under Section 7 of GPL version 3, you are granted additional - * permissions described in the GCC Runtime Library Exception, version - * 3.1, as published by the Free Software Foundation. - * - * You should have received a copy of the GNU General Public License and - * a copy of the GCC Runtime Library Exception along with this program; - * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see - * <http://www.gnu.org/licenses/>. - */ - -/* Set up trampolines. */ - - .section ".text" -#include "ppc-asm.h" -#include "config.h" - -#ifndef __powerpc64__ - .type trampoline_initial,@object - .align 2 -trampoline_initial: - mflr r0 - bcl 20,31,1f -.Lfunc = .-trampoline_initial - .long 0 /* will be replaced with function address */ -.Lchain = .-trampoline_initial - .long 0 /* will be replaced with static chain */ -1: mflr r11 - mtlr r0 - lwz r0,0(r11) /* function address */ - lwz r11,4(r11) /* static chain */ - mtctr r0 - bctr - -trampoline_size = .-trampoline_initial - .size trampoline_initial,trampoline_size - - -/* R3 = stack address to store trampoline */ -/* R4 = length of trampoline area */ -/* R5 = function address */ -/* R6 = static chain */ - -FUNC_START(__trampoline_setup) - mflr r0 /* save return address */ - bcl 20,31,.LCF0 /* load up __trampoline_initial into r7 */ -.LCF0: - mflr r11 - addi r7,r11,trampoline_initial-4-.LCF0 /* trampoline address -4 */ - - li r8,trampoline_size /* verify that the trampoline is big enough */ - cmpw cr1,r8,r4 - srwi r4,r4,2 /* # words to move */ - addi r9,r3,-4 /* adjust pointer for lwzu */ - mtctr r4 - blt cr1,.Labort - - mtlr r0 - - /* Copy the instructions to the stack */ -.Lmove: - lwzu r10,4(r7) - stwu r10,4(r9) - bdnz .Lmove - - /* Store correct function and static chain */ - stw r5,.Lfunc(r3) - stw r6,.Lchain(r3) - - /* Now flush both caches */ - mtctr r4 -.Lcache: - icbi 0,r3 - dcbf 0,r3 - addi r3,r3,4 - bdnz .Lcache - - /* Finally synchronize things & return */ - sync - isync - blr - -.Labort: -#if (defined __PIC__ || defined __pic__) && defined HAVE_AS_REL16 - bcl 20,31,1f -1: mflr r30 - addis r30,r30,_GLOBAL_OFFSET_TABLE_-1b@ha - addi r30,r30,_GLOBAL_OFFSET_TABLE_-1b@l -#endif - bl JUMP_TARGET(abort) -FUNC_END(__trampoline_setup) - -#endif |