1/* Configuration for a MIPS ABI32 OpenBSD target. 2 Copyright (C) 1999, 2003, 2004, 2007, 2008 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify 7it under the terms of the GNU General Public License as published by 8the Free Software Foundation; either version 3, or (at your option) 9any later version. 10 11GCC is distributed in the hope that it will be useful, 12but WITHOUT ANY WARRANTY; without even the implied warranty of 13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14GNU General Public License for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING3. If not see 18<http://www.gnu.org/licenses/>. */ 19 20/* Definitions needed for OpenBSD, to avoid picking mips 'defaults'. */ 21 22/* GAS must know this. */ 23#undef SUBTARGET_ASM_SPEC 24#define SUBTARGET_ASM_SPEC "%{fPIC|fPIE:-KPIC}" 25 26#define AS_NEEDS_DASH_FOR_PIPED_INPUT 27 28/* CPP specific OpenBSD specs. */ 29#undef SUBTARGET_CPP_SPEC 30#define SUBTARGET_CPP_SPEC OBSD_CPP_SPEC 31 32/* Needed for ELF (inspired by netbsd-elf). */ 33#undef LOCAL_LABEL_PREFIX 34#define LOCAL_LABEL_PREFIX "." 35 36/* The profiling lib spec here is not really correct but we leave 37 it as it is until we have some kind of profiling working. */ 38#define LIB_SPEC OBSD_LIB_SPEC 39 40/* mips assembler uses .set for arcane purposes. __attribute__((alias)) 41 and friends won't work until we get recent binutils with .weakext 42 support. */ 43#undef SET_ASM_OP 44 45#define TARGET_OS_CPP_BUILTINS() \ 46 do { \ 47 builtin_define ("__unix__"); \ 48 builtin_define ("__SYSTYPE_BSD__"); \ 49 builtin_define ("__NO_LEADING_UNDERSCORES__"); \ 50 builtin_define ("__GP_SUPPORT__"); \ 51 builtin_define ("__OpenBSD__"); \ 52 builtin_assert ("system=unix"); \ 53 builtin_assert ("system=OpenBSD"); \ 54} while (0) 55 56/* Layout of source language data types. */ 57 58/* This must agree with <machine/ansi.h>. */ 59#undef SIZE_TYPE 60#define SIZE_TYPE "long unsigned int" 61 62#undef PTRDIFF_TYPE 63#define PTRDIFF_TYPE "long int" 64 65#undef WCHAR_TYPE 66#define WCHAR_TYPE "int" 67 68#undef WCHAR_TYPE_SIZE 69#define WCHAR_TYPE_SIZE 32 70 71#undef WINT_TYPE 72#define WINT_TYPE "int" 73 74/* Controlling the compilation driver. */ 75 76/* LINK_SPEC appropriate for OpenBSD: support for GCC options 77 -static, -assert, and -nostdlib. Dynamic loader control. */ 78#undef LINK_SPEC 79#define LINK_SPEC \ 80 "%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \ 81 %{bestGnum} %{shared} %{non_shared} \ 82 %{call_shared} %{no_archive} %{exact_version} \ 83 %{!shared: %{!non_shared: %{!call_shared: -non_shared}}} \ 84 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.so} \ 85 %{!nostdlib:%{!r*:%{!e*:-e __start}}} -dc -dp \ 86 %{static:-Bstatic} %{!static:-Bdynamic} %{assert*}" 87 88/* -G is incompatible with -KPIC which is the default, so only allow objects 89 in the small data section if the user explicitly asks for it. */ 90#undef MIPS_DEFAULT_GVALUE 91#define MIPS_DEFAULT_GVALUE 0 92 93 94/* Since gas and gld are standard on OpenBSD, we don't need these. */ 95#undef ASM_FINAL_SPEC 96#undef STARTFILE_SPEC 97 98/* Switch into a generic section. */ 99#undef TARGET_ASM_NAMED_SECTION 100#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section 101 102/* MIPS specific debugging info */ 103#define MIPS_DEBUGGING_INFO 1 104