1 /* Definitions for PA_RISC with ELF-32 format 2 Copyright (C) 2000-2018 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__ ((__used__, 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 #undef WCHAR_TYPE 61 #define WCHAR_TYPE "long int" 62 63 #undef WCHAR_TYPE_SIZE 64 #define WCHAR_TYPE_SIZE BITS_PER_WORD 65 66 /* POSIX types such as pthread_mutex_t require 16-byte alignment to retain 67 layout compatibility with the original linux thread implementation. */ 68 #undef MALLOC_ABI_ALIGNMENT 69 #define MALLOC_ABI_ALIGNMENT 128 70 71 /* Place jump tables in the text section except when generating non-PIC 72 code. When generating non-PIC code, the relocations needed to load the 73 address of the jump table result in a text label in the final executable 74 if the jump table is placed in the text section. This breaks the unwind 75 data for the function. Thus, the jump table needs to be placed in 76 rodata when generating non-PIC code. */ 77 #undef JUMP_TABLES_IN_TEXT_SECTION 78 #define JUMP_TABLES_IN_TEXT_SECTION (flag_pic) 79