openbsd.h revision 302408
1/* Configuration for a MIPS ABI32 OpenBSD target. 2 Copyright (C) 1999, 2003, 2004 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 2, 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 COPYING. If not, write to 18the Free Software Foundation, 51 Franklin Street, Fifth Floor, 19Boston, MA 02110-1301, USA. */ 20 21/* Definitions needed for OpenBSD, to avoid picking mips 'defaults'. */ 22 23/* GAS must know this. */ 24#undef SUBTARGET_ASM_SPEC 25#define SUBTARGET_ASM_SPEC "%{fPIC|fPIE:-KPIC}" 26 27#define AS_NEEDS_DASH_FOR_PIPED_INPUT 28 29/* CPP specific OpenBSD specs. */ 30#undef SUBTARGET_CPP_SPEC 31#define SUBTARGET_CPP_SPEC OBSD_CPP_SPEC 32 33/* Needed for ELF (inspired by netbsd-elf). */ 34#undef LOCAL_LABEL_PREFIX 35#define LOCAL_LABEL_PREFIX "." 36 37/* The profiling lib spec here is not really correct but we leave 38 it as it is until we have some kind of profiling working. */ 39#define LIB_SPEC OBSD_LIB_SPEC 40 41/* mips assembler uses .set for arcane purposes. __attribute__((alias)) 42 and friends won't work until we get recent binutils with .weakext 43 support. */ 44#undef SET_ASM_OP 45 46#define TARGET_OS_CPP_BUILTINS() \ 47 do { \ 48 builtin_define ("__unix__"); \ 49 builtin_define ("__SYSTYPE_BSD__"); \ 50 builtin_define ("__NO_LEADING_UNDERSCORES__"); \ 51 builtin_define ("__GP_SUPPORT__"); \ 52 builtin_define ("__OpenBSD__"); \ 53 builtin_assert ("system=unix"); \ 54 builtin_assert ("system=OpenBSD"); \ 55} while (0) 56 57/* Layout of source language data types. */ 58 59/* This must agree with <machine/ansi.h>. */ 60#undef SIZE_TYPE 61#define SIZE_TYPE "unsigned int" 62 63#undef PTRDIFF_TYPE 64#define PTRDIFF_TYPE "int" 65 66#undef WCHAR_TYPE 67#define WCHAR_TYPE "int" 68 69#undef WCHAR_TYPE_SIZE 70#define WCHAR_TYPE_SIZE 32 71 72/* Controlling the compilation driver. */ 73 74/* LINK_SPEC appropriate for OpenBSD: support for GCC options 75 -static, -assert, and -nostdlib. Dynamic loader control. */ 76#undef LINK_SPEC 77#define LINK_SPEC \ 78 "%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \ 79 %{bestGnum} %{shared} %{non_shared} \ 80 %{call_shared} %{no_archive} %{exact_version} \ 81 %{!shared: %{!non_shared: %{!call_shared: -non_shared}}} \ 82 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.so} \ 83 %{!nostdlib:%{!r*:%{!e*:-e __start}}} -dc -dp \ 84 %{static:-Bstatic} %{!static:-Bdynamic} %{assert*}" 85 86/* -G is incompatible with -KPIC which is the default, so only allow objects 87 in the small data section if the user explicitly asks for it. */ 88#undef MIPS_DEFAULT_GVALUE 89#define MIPS_DEFAULT_GVALUE 0 90 91 92/* Since gas and gld are standard on OpenBSD, we don't need these. */ 93#undef ASM_FINAL_SPEC 94#undef STARTFILE_SPEC 95 96/* Switch into a generic section. */ 97#undef TARGET_ASM_NAMED_SECTION 98#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section 99