| 1 |
38 |
julius |
/* Definitions for MIPS running Linux-based GNU systems with ELF format.
|
| 2 |
|
|
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
|
| 3 |
|
|
2007 Free Software Foundation, Inc.
|
| 4 |
|
|
|
| 5 |
|
|
This file is part of GCC.
|
| 6 |
|
|
|
| 7 |
|
|
GCC is free software; you can redistribute it and/or modify
|
| 8 |
|
|
it under the terms of the GNU General Public License as published by
|
| 9 |
|
|
the Free Software Foundation; either version 3, or (at your option)
|
| 10 |
|
|
any later version.
|
| 11 |
|
|
|
| 12 |
|
|
GCC is distributed in the hope that it will be useful,
|
| 13 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 14 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 15 |
|
|
GNU General Public License for more details.
|
| 16 |
|
|
|
| 17 |
|
|
You should have received a copy of the GNU General Public License
|
| 18 |
|
|
along with GCC; see the file COPYING3. If not see
|
| 19 |
|
|
<http://www.gnu.org/licenses/>. */
|
| 20 |
|
|
|
| 21 |
|
|
#undef WCHAR_TYPE
|
| 22 |
|
|
#define WCHAR_TYPE "int"
|
| 23 |
|
|
|
| 24 |
|
|
#undef WCHAR_TYPE_SIZE
|
| 25 |
|
|
#define WCHAR_TYPE_SIZE 32
|
| 26 |
|
|
|
| 27 |
|
|
/* If defined, a C expression whose value is a string containing the
|
| 28 |
|
|
assembler operation to identify the following data as
|
| 29 |
|
|
uninitialized global data. If not defined, and neither
|
| 30 |
|
|
`ASM_OUTPUT_BSS' nor `ASM_OUTPUT_ALIGNED_BSS' are defined,
|
| 31 |
|
|
uninitialized global data will be output in the data section if
|
| 32 |
|
|
`-fno-common' is passed, otherwise `ASM_OUTPUT_COMMON' will be
|
| 33 |
|
|
used. */
|
| 34 |
|
|
#define BSS_SECTION_ASM_OP "\t.section\t.bss"
|
| 35 |
|
|
|
| 36 |
|
|
#define ASM_OUTPUT_ALIGNED_BSS mips_output_aligned_bss
|
| 37 |
|
|
|
| 38 |
|
|
#undef ASM_DECLARE_OBJECT_NAME
|
| 39 |
|
|
#define ASM_DECLARE_OBJECT_NAME mips_declare_object_name
|
| 40 |
|
|
|
| 41 |
|
|
#undef TARGET_VERSION
|
| 42 |
|
|
#if TARGET_ENDIAN_DEFAULT == 0
|
| 43 |
|
|
#define TARGET_VERSION fprintf (stderr, " (MIPSel GNU/Linux with ELF)");
|
| 44 |
|
|
#else
|
| 45 |
|
|
#define TARGET_VERSION fprintf (stderr, " (MIPS GNU/Linux with ELF)");
|
| 46 |
|
|
#endif
|
| 47 |
|
|
|
| 48 |
|
|
#undef MD_EXEC_PREFIX
|
| 49 |
|
|
#undef MD_STARTFILE_PREFIX
|
| 50 |
|
|
|
| 51 |
|
|
/* If we don't set MASK_ABICALLS, we can't default to PIC. */
|
| 52 |
|
|
#undef TARGET_DEFAULT
|
| 53 |
|
|
#define TARGET_DEFAULT MASK_ABICALLS
|
| 54 |
|
|
|
| 55 |
|
|
#define TARGET_OS_CPP_BUILTINS() \
|
| 56 |
|
|
do { \
|
| 57 |
|
|
LINUX_TARGET_OS_CPP_BUILTINS(); \
|
| 58 |
|
|
/* The GNU C++ standard library requires this. */ \
|
| 59 |
|
|
if (c_dialect_cxx ()) \
|
| 60 |
|
|
builtin_define ("_GNU_SOURCE"); \
|
| 61 |
|
|
\
|
| 62 |
|
|
if (mips_abi == ABI_N32) \
|
| 63 |
|
|
{ \
|
| 64 |
|
|
builtin_define ("_ABIN32=2"); \
|
| 65 |
|
|
builtin_define ("_MIPS_SIM=_ABIN32"); \
|
| 66 |
|
|
builtin_define ("_MIPS_SZLONG=32"); \
|
| 67 |
|
|
builtin_define ("_MIPS_SZPTR=32"); \
|
| 68 |
|
|
} \
|
| 69 |
|
|
else if (mips_abi == ABI_64) \
|
| 70 |
|
|
{ \
|
| 71 |
|
|
builtin_define ("_ABI64=3"); \
|
| 72 |
|
|
builtin_define ("_MIPS_SIM=_ABI64"); \
|
| 73 |
|
|
builtin_define ("_MIPS_SZLONG=64"); \
|
| 74 |
|
|
builtin_define ("_MIPS_SZPTR=64"); \
|
| 75 |
|
|
} \
|
| 76 |
|
|
else \
|
| 77 |
|
|
{ \
|
| 78 |
|
|
builtin_define ("_ABIO32=1"); \
|
| 79 |
|
|
builtin_define ("_MIPS_SIM=_ABIO32"); \
|
| 80 |
|
|
builtin_define ("_MIPS_SZLONG=32"); \
|
| 81 |
|
|
builtin_define ("_MIPS_SZPTR=32"); \
|
| 82 |
|
|
} \
|
| 83 |
|
|
if (TARGET_FLOAT64) \
|
| 84 |
|
|
builtin_define ("_MIPS_FPSET=32"); \
|
| 85 |
|
|
else \
|
| 86 |
|
|
builtin_define ("_MIPS_FPSET=16"); \
|
| 87 |
|
|
\
|
| 88 |
|
|
builtin_define ("_MIPS_SZINT=32"); \
|
| 89 |
|
|
} while (0)
|
| 90 |
|
|
|
| 91 |
|
|
#undef SUBTARGET_CPP_SPEC
|
| 92 |
|
|
#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
|
| 93 |
|
|
|
| 94 |
|
|
/* A standard GNU/Linux mapping. On most targets, it is included in
|
| 95 |
|
|
CC1_SPEC itself by config/linux.h, but mips.h overrides CC1_SPEC
|
| 96 |
|
|
and provides this hook instead. */
|
| 97 |
|
|
#undef SUBTARGET_CC1_SPEC
|
| 98 |
|
|
#define SUBTARGET_CC1_SPEC "%{profile:-p}"
|
| 99 |
|
|
|
| 100 |
|
|
/* From iris5.h */
|
| 101 |
|
|
/* -G is incompatible with -KPIC which is the default, so only allow objects
|
| 102 |
|
|
in the small data section if the user explicitly asks for it. */
|
| 103 |
|
|
#undef MIPS_DEFAULT_GVALUE
|
| 104 |
|
|
#define MIPS_DEFAULT_GVALUE 0
|
| 105 |
|
|
|
| 106 |
|
|
#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
|
| 107 |
|
|
|
| 108 |
|
|
/* Borrowed from sparc/linux.h */
|
| 109 |
|
|
#undef LINK_SPEC
|
| 110 |
|
|
#define LINK_SPEC \
|
| 111 |
|
|
"%(endian_spec) \
|
| 112 |
|
|
%{shared:-shared} \
|
| 113 |
|
|
%{!shared: \
|
| 114 |
|
|
%{!ibcs: \
|
| 115 |
|
|
%{!static: \
|
| 116 |
|
|
%{rdynamic:-export-dynamic} \
|
| 117 |
|
|
%{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
|
| 118 |
|
|
%{static:-static}}}"
|
| 119 |
|
|
|
| 120 |
|
|
#undef SUBTARGET_ASM_SPEC
|
| 121 |
|
|
#define SUBTARGET_ASM_SPEC "%{mabi=64: -64} %{!mno-abicalls:-KPIC}"
|
| 122 |
|
|
|
| 123 |
|
|
/* The MIPS assembler has different syntax for .set. We set it to
|
| 124 |
|
|
.dummy to trap any errors. */
|
| 125 |
|
|
#undef SET_ASM_OP
|
| 126 |
|
|
#define SET_ASM_OP "\t.dummy\t"
|
| 127 |
|
|
|
| 128 |
|
|
#undef ASM_OUTPUT_DEF
|
| 129 |
|
|
#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
|
| 130 |
|
|
do { \
|
| 131 |
|
|
fputc ( '\t', FILE); \
|
| 132 |
|
|
assemble_name (FILE, LABEL1); \
|
| 133 |
|
|
fputs ( " = ", FILE); \
|
| 134 |
|
|
assemble_name (FILE, LABEL2); \
|
| 135 |
|
|
fputc ( '\n', FILE); \
|
| 136 |
|
|
} while (0)
|
| 137 |
|
|
|
| 138 |
|
|
#undef ASM_DECLARE_FUNCTION_NAME
|
| 139 |
|
|
#define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \
|
| 140 |
|
|
do { \
|
| 141 |
|
|
if (!flag_inhibit_size_directive) \
|
| 142 |
|
|
{ \
|
| 143 |
|
|
fputs ("\t.ent\t", STREAM); \
|
| 144 |
|
|
assemble_name (STREAM, NAME); \
|
| 145 |
|
|
putc ('\n', STREAM); \
|
| 146 |
|
|
} \
|
| 147 |
|
|
ASM_OUTPUT_TYPE_DIRECTIVE (STREAM, NAME, "function"); \
|
| 148 |
|
|
assemble_name (STREAM, NAME); \
|
| 149 |
|
|
fputs (":\n", STREAM); \
|
| 150 |
|
|
} while (0)
|
| 151 |
|
|
|
| 152 |
|
|
#undef ASM_DECLARE_FUNCTION_SIZE
|
| 153 |
|
|
#define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL) \
|
| 154 |
|
|
do { \
|
| 155 |
|
|
if (!flag_inhibit_size_directive) \
|
| 156 |
|
|
{ \
|
| 157 |
|
|
fputs ("\t.end\t", STREAM); \
|
| 158 |
|
|
assemble_name (STREAM, NAME); \
|
| 159 |
|
|
putc ('\n', STREAM); \
|
| 160 |
|
|
} \
|
| 161 |
|
|
} while (0)
|
| 162 |
|
|
|
| 163 |
|
|
/* Tell function_prologue in mips.c that we have already output the .ent/.end
|
| 164 |
|
|
pseudo-ops. */
|
| 165 |
|
|
#undef FUNCTION_NAME_ALREADY_DECLARED
|
| 166 |
|
|
#define FUNCTION_NAME_ALREADY_DECLARED 1
|
| 167 |
|
|
|
| 168 |
|
|
/* The glibc _mcount stub will save $v0 for us. Don't mess with saving
|
| 169 |
|
|
it, since ASM_OUTPUT_REG_PUSH/ASM_OUTPUT_REG_POP do not work in the
|
| 170 |
|
|
presence of $gp-relative calls. */
|
| 171 |
|
|
#undef ASM_OUTPUT_REG_PUSH
|
| 172 |
|
|
#undef ASM_OUTPUT_REG_POP
|
| 173 |
|
|
|
| 174 |
|
|
#undef LIB_SPEC
|
| 175 |
|
|
#define LIB_SPEC "\
|
| 176 |
|
|
%{shared: -lc} \
|
| 177 |
|
|
%{!shared: %{pthread:-lpthread} \
|
| 178 |
|
|
%{profile:-lc_p} %{!profile: -lc}}"
|
| 179 |
|
|
|
| 180 |
|
|
#define MD_UNWIND_SUPPORT "config/mips/linux-unwind.h"
|
