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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [pa/] [pa32-linux.h] - Rev 289
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/* Definitions for PA_RISC with ELF-32 format Copyright (C) 2000, 2002, 2004, 2006, 2007 Free Software Foundation, Inc. This file is part of GCC. GCC 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. GCC 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 GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>. */ /* Turn off various SOM crap we don't want. */ #undef TARGET_ELF32 #define TARGET_ELF32 1 /* The libcall __canonicalize_funcptr_for_compare is referenced in crtend.o and the reference isn't resolved in objects that don't compare function pointers. Thus, we need to play games to provide a reference in crtbegin.o. The rest of the define is the same as that in crtstuff.c */ #define CTOR_LIST_BEGIN \ asm (".type __canonicalize_funcptr_for_compare,@function\n" \ " .text\n" \ " .word __canonicalize_funcptr_for_compare-$PIC_pcrel$0"); \ STATIC func_ptr __CTOR_LIST__[1] \ __attribute__ ((__unused__, section(".ctors"), \ aligned(sizeof(func_ptr)))) \ = { (func_ptr) (-1) } /* This is a PIC version of CRT_CALL_STATIC_FUNCTION. The PIC register has to be saved before the call and restored after the call. We assume that register %r4 is available for this purpose. The hack prevents GCC from deleting the restore. */ #ifdef CRTSTUFFS_O #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ static void __attribute__((__used__)) \ call_ ## FUNC (void) \ { \ asm (SECTION_OP); \ asm volatile ("bl " #FUNC ",%%r2\n\t" \ "copy %%r19,%%r4\n\t" \ "copy %%r4,%%r19\n" \ : \ : \ : "r1", "r2", "r4", "r20", "r21", \ "r22", "r23", "r24", "r25", "r26", \ "r27", "r28", "r29", "r31"); \ asm (TEXT_SECTION_ASM_OP); \ } #endif #define MD_UNWIND_SUPPORT "config/pa/linux-unwind.h"
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