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Diffstat (limited to 'gcc/config/mips/openbsd.h')
| -rw-r--r-- | gcc/config/mips/openbsd.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/gcc/config/mips/openbsd.h b/gcc/config/mips/openbsd.h new file mode 100644 index 0000000..a40a7f9 --- /dev/null +++ b/gcc/config/mips/openbsd.h @@ -0,0 +1,126 @@ +/* Configuration for a Mips ABI32 OpenBSD target. + Copyright (C) 1999 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC 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 2, or (at your option) +any later version. + +GNU CC 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 GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* Definitions needed for OpenBSD, to avoid picking mips 'defaults'. */ + +/* GAS must know this. */ +#define SUBTARGET_ASM_SPEC "%{fPIC:-KPIC} %|" + +/* CPP specific OpenBSD specs. */ +#define SUBTARGET_CPP_SPEC OBSD_CPP_SPEC + +/* Needed for ELF (inspired by netbsd-elf). */ +#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG +#define LOCAL_LABEL_PREFIX "." + +/* The profiling lib spec here is not really correct but we leave + it as it is until we have some kind of profiling working. */ +#define LIB_SPEC OBSD_LIB_SPEC + +/* By default, OpenBSD mips is little endian. This is important to set + here as mips/mips.h defaults to big endian unless DECSTATION. */ +#ifndef TARGET_ENDIAN_DEFAULT +#define TARGET_ENDIAN_DEFAULT 0 +#endif + +#include <mips/mips.h> + +/* Get generic OpenBSD definitions. */ +#define OBSD_HAS_DECLARE_FUNCTION_NAME +#define OBSD_HAS_DECLARE_OBJECT +#define OBSD_HAS_CORRECT_SPECS +#include <openbsd.h> + +/* mips assembler uses .set for arcane purposes. __attribute__((alias)) + and friends won't work until we get recent binutils with .weakext + support. */ +#undef SET_ASM_OP + +/* Run-time target specifications. */ +#if TARGET_ENDIAN_DEFAULT != 0 +#define CPP_PREDEFINES "-D__SYSTYPE_BSD__ -D__NO_LEADING_UNDERSCORES__ \ +-D__GP_SUPPORT__ -D__MIPSEB__ -D__unix__ -D__OpenBSD__ -D__mips__ \ +-Asystem(unix) -Asystem(OpenBSD) -Acpu(mips) -Amachine(mips) -Aendian(big)" +#else +#define CPP_PREDEFINES "-D__SYSTYPE_BSD__ -D__NO_LEADING_UNDERSCORES__ \ +-D__GP_SUPPORT__ -D__MIPSEL__ -D__unix__ -D__OpenBSD__ -D__mips__ \ +-Asystem(unix) -Asystem(OpenBSD) -Acpu(mips) -Amachine(mips) -Aendian(little)" +#endif + +/* Layout of source language data types. */ + +/* This must agree with <machine/ansi.h>. */ +#undef SIZE_TYPE +#define SIZE_TYPE "unsigned int" + +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE "int" + +#undef WCHAR_TYPE +#define WCHAR_TYPE "int" + +#undef WCHAR_TYPE_SIZE +#define WCHAR_TYPE_SIZE 32 + +/* Controlling the compilation driver. */ + +/* LINK_SPEC appropriate for OpenBSD: support for GCC options + -static, -assert, and -nostdlib. Dynamic loader control. */ +#undef LINK_SPEC +#define LINK_SPEC \ + "%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \ + %{bestGnum} %{shared} %{non_shared} \ + %{call_shared} %{no_archive} %{exact_version} \ + %{!shared: %{!non_shared: %{!call_shared: -non_shared}}} \ + %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.so} \ + %{!nostdlib:%{!r*:%{!e*:-e __start}}} -dc -dp \ + %{static:-Bstatic} %{!static:-Bdynamic} %{assert*}" + +/* -G is incompatible with -KPIC which is the default, so only allow objects + in the small data section if the user explicitly asks for it. */ +#undef MIPS_DEFAULT_GVALUE +#define MIPS_DEFAULT_GVALUE 0 + + +/* Since gas and gld are standard on OpenBSD, we don't need these. */ +#undef ASM_FINAL_SPEC +#undef STARTFILE_SPEC + +/* A C statement to output something to the assembler file to switch to + section NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL + or NULL_TREE. Some target formats do not support arbitrary sections. + Do not define this macro in such cases. mips.h doesn't define this, + do it here. */ +#define ASM_OUTPUT_SECTION_NAME(F, DECL, NAME, RELOC) \ +do { \ + extern FILE *asm_out_text_file; \ + if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \ + fprintf (asm_out_text_file, "\t.section %s,\"ax\",@progbits\n", (NAME)); \ + else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \ + fprintf (F, "\t.section %s,\"a\",@progbits\n", (NAME)); \ + else \ + fprintf (F, "\t.section %s,\"aw\",@progbits\n", (NAME)); \ +} while (0) + +/* collect2 support (Macros for initialization). */ + +/* Mips default configuration is COFF-only, and confuses collect2. */ +#undef OBJECT_FORMAT_COFF +#undef EXTENDED_COFF |