1 /* Definitions for PA_RISC with ELF-32 format 2 Copyright (C) 2000, 2002, 2004, 2006, 2007 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3, or (at your option) 9 any later version. 10 11 GCC is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING3. If not see 18 <http://www.gnu.org/licenses/>. */ 19 20 /* Turn off various SOM crap we don't want. */ 21 #undef TARGET_ELF32 22 #define TARGET_ELF32 1 23 24 /* The libcall __canonicalize_funcptr_for_compare is referenced in 25 crtend.o and the reference isn't resolved in objects that don't 26 compare function pointers. Thus, we need to play games to provide 27 a reference in crtbegin.o. The rest of the define is the same 28 as that in crtstuff.c */ 29 #define CTOR_LIST_BEGIN \ 30 asm (".type __canonicalize_funcptr_for_compare,@function\n" \ 31 " .text\n" \ 32 " .word __canonicalize_funcptr_for_compare-$PIC_pcrel$0"); \ 33 STATIC func_ptr __CTOR_LIST__[1] \ 34 __attribute__ ((__unused__, section(".ctors"), \ 35 aligned(sizeof(func_ptr)))) \ 36 = { (func_ptr) (-1) } 37 38 /* This is a PIC version of CRT_CALL_STATIC_FUNCTION. The PIC 39 register has to be saved before the call and restored after 40 the call. We assume that register %r4 is available for this 41 purpose. The hack prevents GCC from deleting the restore. */ 42 #ifdef CRTSTUFFS_O 43 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ 44 static void __attribute__((__used__)) \ 45 call_ ## FUNC (void) \ 46 { \ 47 asm (SECTION_OP); \ 48 asm volatile ("bl " #FUNC ",%%r2\n\t" \ 49 "copy %%r19,%%r4\n\t" \ 50 "copy %%r4,%%r19\n" \ 51 : \ 52 : \ 53 : "r1", "r2", "r4", "r20", "r21", \ 54 "r22", "r23", "r24", "r25", "r26", \ 55 "r27", "r28", "r29", "r31"); \ 56 asm (TEXT_SECTION_ASM_OP); \ 57 } 58 #endif 59 60 #define MD_UNWIND_SUPPORT "config/pa/linux-unwind.h" 61