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/* Definitions for MIPS running Linux-based GNU systems with ELF format.
Copyright (C) 1998, 1999, 2000, 2001 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. */
#undef TARGET_VERSION
#if TARGET_ENDIAN_DEFAULT == 0
#define TARGET_VERSION fprintf (stderr, " (MIPSel GNU/Linux with ELF)");
#else
#define TARGET_VERSION fprintf (stderr, " (MIPS GNU/Linux with ELF)");
#endif
#undef MD_EXEC_PREFIX
#undef MD_STARTFILE_PREFIX
/* Required to keep collect2.c happy */
#undef OBJECT_FORMAT_COFF
/* If we don't set MASK_ABICALLS, we can't default to PIC. */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_ABICALLS|MASK_GAS)
/* Handle #pragma weak and #pragma pack. */
#undef HANDLE_SYSV_PRAGMA
#define HANDLE_SYSV_PRAGMA 1
/* Don't assume anything about the header files. */
#define NO_IMPLICIT_EXTERN_C
/* Generate calls to memcpy, etc., not bcopy, etc. */
#define TARGET_MEM_FUNCTIONS
/* Specify predefined symbols in preprocessor. */
#undef CPP_PREDEFINES
#if TARGET_ENDIAN_DEFAULT == 0
#define CPP_PREDEFINES "-DMIPSEL -D_MIPSEL -Dunix -Dmips -D_mips \
-DR3000 -D_R3000 -Dlinux -Asystem=posix -Acpu=mips \
-Amachine=mips -D__ELF__ -D__PIC__ -D__pic__"
#else
#define CPP_PREDEFINES "-DMIPSEB -D_MIPSEB -Dunix -Dmips -D_mips \
-DR3000 -D_R3000 -Dlinux -Asystem=posix -Acpu=mips \
-Amachine=mips -D__ELF__ -D__PIC__ -D__pic__"
#endif
#undef SUBTARGET_CPP_SIZE_SPEC
#define SUBTARGET_CPP_SIZE_SPEC "\
%{mabi=32: -D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int} \
%{mabi=n32: -D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int} \
%{mabi=64: -D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int} \
%{!mabi*: -D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int}"
/* We must make -mips3 do what -mlong64 used to do. */
/* ??? If no mipsX option given, but a mabi=X option is, then should set
_MIPS_ISA based on the mabi=X option. */
/* ??? If no mabi=X option give, but a mipsX option is, then should set
_MIPS_SIM based on the mipsX option. */
/* ??? Same for _MIPS_SZINT. */
/* ??? Same for _MIPS_SZPTR. */
/* ??? Same for __SIZE_TYPE and __PTRDIFF_TYPE. */
#undef SUBTARGET_CPP_SPEC
#define SUBTARGET_CPP_SPEC "\
%{mfp32: -D_MIPS_FPSET=16} \
%{mfp64: -D_MIPS_FPSET=32} \
%{!mfp*: -D_MIPS_FPSET=32} \
%{mips1: -D_MIPS_ISA=_MIPS_ISA_MIPS1} \
%{mips2: -D_MIPS_ISA=_MIPS_ISA_MIPS2} \
%{mips3: -D_MIPS_ISA=_MIPS_ISA_MIPS3} \
%{mips4: -D_MIPS_ISA=_MIPS_ISA_MIPS4} \
%{!mips*: -D_MIPS_ISA=_MIPS_ISA_MIPS1} \
%{mabi=32: -D_MIPS_SIM=_MIPS_SIM_ABI32} \
%{mabi=n32: -D_ABIN32=2 -D_MIPS_SIM=_ABIN32} \
%{mabi=64: -D_ABI64=3 -D_MIPS_SIM=_ABI64} \
%{!mabi*: -D_MIPS_SIM=_MIPS_SIM_ABI32} \
%{!mint64: -D_MIPS_SZINT=32}%{mint64: -D_MIPS_SZINT=64} \
%{mabi=32: -D_MIPS_SZLONG=32} \
%{mabi=n32: -D_MIPS_SZLONG=32} \
%{mabi=64: -D_MIPS_SZLONG=64} \
%{!mabi*: -D_MIPS_SZLONG=32} \
%{mabi=32: -D_MIPS_SZPTR=32} \
%{mabi=n32: -D_MIPS_SZPTR=32} \
%{mabi=64: -D_MIPS_SZPTR=64} \
%{!mabi*: -D_MIPS_SZPTR=32} \
%{!mips*: -U__mips -D__mips} \
%{mabi=32: -U__mips64} \
%{mabi=n32: -D__mips64} \
%{mabi=64: -U__mips64} \
%{!mabi*: -U__mips64} \
%{fno-PIC:-U__PIC__ -U__pic__} %{fno-pic:-U__PIC__ -U__pic__} \
%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} \
%{pthread:-D_REENTRANT}"
/* The GNU C++ standard library requires that these macros be defined. */
#undef CPLUSPLUS_CPP_SPEC
#define CPLUSPLUS_CPP_SPEC "\
-D__LANGUAGE_C_PLUS_PLUS -D_LANGUAGE_C_PLUS_PLUS \
-D_GNU_SOURCE %(cpp) \
"
/* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
provides part of the support for getting C++ file-scope static
object constructed before entering `main'. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
"%{!shared: \
%{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
the GNU/Linux magical crtend.o file (see crtstuff.c) which
provides part of the support for getting C++ file-scope static
object constructed before entering `main', followed by a normal
GNU/Linux "finalizer" file, `crtn.o'. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
/* From iris5.h */
/* -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
#undef LIB_SPEC
/* Taken from sparc/linux.h. */
#define LIB_SPEC \
"%{shared: -lc} \
%{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
%{profile:-lc_p} %{!profile: -lc}}"
/* Borrowed from sparc/linux.h */
#undef LINK_SPEC
#define LINK_SPEC \
"%(endian_spec) \
%{shared:-shared} \
%{!shared: \
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
%{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
%{static:-static}}}"
#undef SUBTARGET_ASM_SPEC
#define SUBTARGET_ASM_SPEC "\
%{mabi=64: -64} \
%{!fno-PIC:%{!fno-pic:-KPIC}} \
%{fno-PIC:-non_shared} %{fno-pic:-non_shared}"
/* We don't need those nonsenses. */
#undef INVOKE__main
#undef CTOR_LIST_BEGIN
#undef CTOR_LIST_END
#undef DTOR_LIST_BEGIN
#undef DTOR_LIST_END
/* The MIPS assembler has different syntax for .set. We set it to
.dummy to trap any errors. */
#undef SET_ASM_OP
#define SET_ASM_OP "\t.dummy\t"
#undef ASM_OUTPUT_SOURCE_LINE
#define ASM_OUTPUT_SOURCE_LINE(FILE, LINE) \
do \
{ \
static int sym_lineno = 1; \
fprintf (FILE, "%sLM%d:\n\t%s 68,0,%d,%sLM%d", \
LOCAL_LABEL_PREFIX, sym_lineno, ASM_STABN_OP, \
LINE, LOCAL_LABEL_PREFIX, sym_lineno); \
putc ('-', FILE); \
assemble_name (FILE, \
XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));\
putc ('\n', FILE); \
sym_lineno++; \
} \
while (0)
/* This is how we tell the assembler that two symbols have the
same value. */
#undef ASM_OUTPUT_DEF
#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
do { \
fprintf ((FILE), "\t"); \
assemble_name (FILE, LABEL1); \
fprintf (FILE, "="); \
assemble_name (FILE, LABEL2); \
fprintf (FILE, "\n"); \
} while (0)
#undef ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL
#define ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL(FILE, SY, HI, LO) \
do { \
fputc ('\t', FILE); \
assemble_name (FILE, SY); \
fputc ('=', FILE); \
assemble_name (FILE, HI); \
fputc ('-', FILE); \
assemble_name (FILE, LO); \
} while (0)
#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \
do { \
if (!flag_inhibit_size_directive) \
{ \
fputs ("\t.ent\t", STREAM); \
assemble_name (STREAM, NAME); \
putc ('\n', STREAM); \
} \
fprintf (STREAM, "\t%s\t ", TYPE_ASM_OP); \
assemble_name (STREAM, NAME); \
putc (',', STREAM); \
fprintf (STREAM, TYPE_OPERAND_FMT, "function"); \
putc ('\n', STREAM); \
assemble_name (STREAM, NAME); \
fputs (":\n", STREAM); \
} while (0)
#undef ASM_DECLARE_FUNCTION_SIZE
#define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL) \
do { \
if (!flag_inhibit_size_directive) \
{ \
fputs ("\t.end\t", STREAM); \
assemble_name (STREAM, NAME); \
putc ('\n', STREAM); \
} \
} while (0)
/* Tell function_prologue in mips.c that we have already output the .ent/.end
pseudo-ops. */
#define FUNCTION_NAME_ALREADY_DECLARED
/* Output #ident as a .ident. */
#undef ASM_OUTPUT_IDENT
#define ASM_OUTPUT_IDENT(FILE, NAME) \
fprintf (FILE, "\t%s\t\"%s\"\n", IDENT_ASM_OP, NAME);
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