| /* Definitions for PA_RISC with ELF-32 format |
| Copyright (C) 2000-2021 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__ ((__used__, 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 |
| |
| /* We need to link against libgcc.a for __canonicalize_funcptr_for_compare |
| and $$dyncall. */ |
| #undef ENDFILE_SPEC |
| #define ENDFILE_SPEC GNU_USER_TARGET_ENDFILE_SPEC "libgcc.a%s" |
| |
| #undef WCHAR_TYPE |
| #define WCHAR_TYPE "long int" |
| |
| #undef WCHAR_TYPE_SIZE |
| #define WCHAR_TYPE_SIZE BITS_PER_WORD |
| |
| /* POSIX types such as pthread_mutex_t require 16-byte alignment to retain |
| layout compatibility with the original linux thread implementation. */ |
| #undef MALLOC_ABI_ALIGNMENT |
| #define MALLOC_ABI_ALIGNMENT 128 |
| |
| /* Place jump tables in the text section except when generating non-PIC |
| code. When generating non-PIC code, the relocations needed to load the |
| address of the jump table result in a text label in the final executable |
| if the jump table is placed in the text section. This breaks the unwind |
| data for the function. Thus, the jump table needs to be placed in |
| rodata when generating non-PIC code. */ |
| #undef JUMP_TABLES_IN_TEXT_SECTION |
| #define JUMP_TABLES_IN_TEXT_SECTION (flag_pic) |
| |
| /* We need to override default selection to put references to functions |
| in COMDAT groups in .data.rel.ro.local. */ |
| #undef TARGET_ASM_SELECT_RTX_SECTION |
| #define TARGET_ASM_SELECT_RTX_SECTION pa_elf_select_rtx_section |
