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/* 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. */
/* Default mips is little endian, unless otherwise specified. */
/* Definitions needed for OpenBSD, 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
/* We are little endian by default, unless an includer thinks otherwise.
This is important to set as mips/mips.h defaults to big unless DECSTATION
is defined. */
#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.
XXX Why don't we offer -R support ? */
#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
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