/* Definitions for MIPS running Linux-based GNU systems with ELF format.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GNU CC.
#undef TARGET_VERSION
#if TARGET_ENDIAN_DEFAULT == 0
-#define TARGET_VERSION fprintf (stderr, " (MIPSel GNU/ELF)");
+#define TARGET_VERSION fprintf (stderr, " (MIPSel GNU/Linux with ELF)");
#else
-#define TARGET_VERSION fprintf (stderr, " (MIPS GNU/ELF)");
+#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
+#undef OBJECT_FORMAT_COFF
/* If we don't set MASK_ABICALLS, we can't default to PIC. */
#undef TARGET_DEFAULT
/* Handle #pragma weak and #pragma pack. */
+#undef HANDLE_SYSV_PRAGMA
#define HANDLE_SYSV_PRAGMA 1
-/* Use more efficient ``thunks'' to implement C++ vtables. */
-#undef DEFAULT_VTABLE_THUNKS
-#define DEFAULT_VTABLE_THUNKS 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__"
+-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__"
+-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
/* Borrowed from sparc/linux.h */
#undef LINK_SPEC
-#define LINK_SPEC "%{shared:-shared} \
+#define LINK_SPEC \
+ "%(endian_spec) \
+ %{shared:-shared} \
%{!shared: \
%{!ibcs: \
%{!static: \
#undef SUBTARGET_ASM_SPEC
-#define SUBTARGET_ASM_SPEC "-KPIC"
-
-/* Undefine the following which were defined in elf.h. This will cause the linux
- port to continue to use collect2 for constructors/destructors. These may be removed
- when .ctor/.dtor section support is desired. */
-
-#undef CTORS_SECTION_ASM_OP
-#undef DTORS_SECTION_ASM_OP
-
-#undef EXTRA_SECTIONS
-#define EXTRA_SECTIONS in_sdata, in_sbss, in_rdata
+#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 NAME__MAIN
-#undef SYMBOL__MAIN
-
-#undef EXTRA_SECTION_FUNCTIONS
-#define EXTRA_SECTION_FUNCTIONS \
- SECTION_FUNCTION_TEMPLATE(sdata_section, in_sdata, SDATA_SECTION_ASM_OP) \
- SECTION_FUNCTION_TEMPLATE(sbss_section, in_sbss, SBSS_SECTION_ASM_OP) \
- SECTION_FUNCTION_TEMPLATE(rdata_section, in_rdata, RDATA_SECTION_ASM_OP)
-
-#undef ASM_OUTPUT_CONSTRUCTOR
-#undef ASM_OUTPUT_DESTRUCTOR
-
#undef CTOR_LIST_BEGIN
#undef CTOR_LIST_END
#undef DTOR_LIST_BEGIN
#undef DTOR_LIST_END
-/* End of undefines to turn off .ctor/.dtor section support */
+/* 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"
+
+/* 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
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