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Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/rs6000/darwin-tramp.asm')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/config/rs6000/darwin-tramp.asm | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/rs6000/darwin-tramp.asm b/gcc-4.2.1-5666.3/gcc/config/rs6000/darwin-tramp.asm deleted file mode 100644 index 62522b9e3..000000000 --- a/gcc-4.2.1-5666.3/gcc/config/rs6000/darwin-tramp.asm +++ /dev/null @@ -1,135 +0,0 @@ -/* Special support for trampolines - * - * Copyright (C) 1996, 1997, 2000, 2004, 2005 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 2, or (at your option) any - * later version. - * - * In addition to the permissions in the GNU General Public License, the - * Free Software Foundation gives you unlimited permission to link the - * compiled version of this file with other programs, and to distribute - * those programs without any restriction coming from the use of this - * file. (The General Public License restrictions do apply in other - * respects; for example, they cover modification of the file, and - * distribution when not linked into another program.) - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - * As a special exception, if you link this library with files - * compiled with GCC to produce an executable, this does not cause the - * resulting executable to be covered by the GNU General Public License. - * This exception does not however invalidate any other reasons why the - * executable file might be covered by the GNU General Public License. - */ - -#include "darwin-asm.h" - -/* Set up trampolines. */ - -.text - .align LOG2_GPR_BYTES -Ltrampoline_initial: - mflr r0 - bl 1f -Lfunc = .-Ltrampoline_initial - .g_long 0 /* will be replaced with function address */ -Lchain = .-Ltrampoline_initial - .g_long 0 /* will be replaced with static chain */ -1: mflr r11 - lg r12,0(r11) /* function address */ - mtlr r0 - mtctr r12 - lg r11,GPR_BYTES(r11) /* static chain */ - bctr - -trampoline_size = .-Ltrampoline_initial - -/* R3 = stack address to store trampoline */ -/* R4 = length of trampoline area */ -/* R5 = function address */ -/* R6 = static chain */ - - .globl ___trampoline_setup -___trampoline_setup: - mflr r0 /* save return address */ - bcl 20,31,LCF0 /* load up __trampoline_initial into r7 */ -LCF0: - mflr r11 - addis r7,r11,ha16(LTRAMP-LCF0) - lg r7,lo16(LTRAMP-LCF0)(r7) - subi r7,r7,4 - li r8,trampoline_size /* verify trampoline big enough */ - cmpg cr1,r8,r4 - srwi r4,r4,2 /* # words to move (insns always 4-byte) */ - addi r9,r3,-4 /* adjust pointer for lgu */ - 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 */ - stg r5,Lfunc(r3) - stg r6,Lchain(r3) - - /* Now flush both caches */ - mtctr r4 -Lcache: - icbi 0,r3 - dcbf 0,r3 - addi r3,r3,4 - bdnz Lcache - - /* Ensure cache-flushing has finished. */ - sync - isync - - /* Make stack writeable. */ - b ___enable_execute_stack - -Labort: -#ifdef __DYNAMIC__ - bl L_abort$stub -.data -.section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32 - .align 2 -L_abort$stub: - .indirect_symbol _abort - mflr r0 - bcl 20,31,L0$_abort -L0$_abort: - mflr r11 - addis r11,r11,ha16(L_abort$lazy_ptr-L0$_abort) - mtlr r0 - lgu r12,lo16(L_abort$lazy_ptr-L0$_abort)(r11) - mtctr r12 - bctr -.data -.lazy_symbol_pointer -L_abort$lazy_ptr: - .indirect_symbol _abort - .g_long dyld_stub_binding_helper -#else - bl _abort -#endif -.data - .align LOG2_GPR_BYTES -LTRAMP: - .g_long Ltrampoline_initial - |