/* Definitions for MIPS running Linux-based GNU systems with ELF format.
- Copyright (C) 1998 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC 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,
+GCC 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. */
+along with GCC; see the file COPYING. If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
-/* Required to keep collect2.c happy */
-#undef OBJECT_FORMAT_COFF
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "int"
-#define HAVE_ATEXIT
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32
-/* If we don't set MASK_ABICALLS, we can't default to PIC. */
-#undef TARGET_DEFAULT
-#define TARGET_DEFAULT (MASK_ABICALLS|MASK_GAS)
+/* If defined, a C expression whose value is a string containing the
+ assembler operation to identify the following data as
+ uninitialized global data. If not defined, and neither
+ `ASM_OUTPUT_BSS' nor `ASM_OUTPUT_ALIGNED_BSS' are defined,
+ uninitialized global data will be output in the data section if
+ `-fno-common' is passed, otherwise `ASM_OUTPUT_COMMON' will be
+ used. */
+#define BSS_SECTION_ASM_OP "\t.section\t.bss"
+#define ASM_OUTPUT_ALIGNED_BSS mips_output_aligned_bss
-/* 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 ASM_DECLARE_OBJECT_NAME
+#define ASM_DECLARE_OBJECT_NAME mips_declare_object_name
-#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}"
+#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
-/* 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 MD_EXEC_PREFIX
+#undef MD_STARTFILE_PREFIX
-#undef ENDFILE_SPEC
-#define ENDFILE_SPEC \
- "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
+/* If we don't set MASK_ABICALLS, we can't default to PIC. */
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT MASK_ABICALLS
+
+#define TARGET_OS_CPP_BUILTINS() \
+ do { \
+ LINUX_TARGET_OS_CPP_BUILTINS(); \
+ /* The GNU C++ standard library requires this. */ \
+ if (c_dialect_cxx ()) \
+ builtin_define ("_GNU_SOURCE"); \
+ \
+ if (mips_abi == ABI_N32) \
+ { \
+ builtin_define ("_ABIN32=2"); \
+ builtin_define ("_MIPS_SIM=_ABIN32"); \
+ builtin_define ("_MIPS_SZLONG=32"); \
+ builtin_define ("_MIPS_SZPTR=32"); \
+ } \
+ else if (mips_abi == ABI_64) \
+ { \
+ builtin_define ("_ABI64=3"); \
+ builtin_define ("_MIPS_SIM=_ABI64"); \
+ builtin_define ("_MIPS_SZLONG=64"); \
+ builtin_define ("_MIPS_SZPTR=64"); \
+ } \
+ else \
+ { \
+ builtin_define ("_ABIO32=1"); \
+ builtin_define ("_MIPS_SIM=_ABIO32"); \
+ builtin_define ("_MIPS_SZLONG=32"); \
+ builtin_define ("_MIPS_SZPTR=32"); \
+ } \
+ if (TARGET_FLOAT64) \
+ builtin_define ("_MIPS_FPSET=32"); \
+ else \
+ builtin_define ("_MIPS_FPSET=16"); \
+ \
+ builtin_define ("_MIPS_SZINT=32"); \
+ } while (0)
+
+#undef SUBTARGET_CPP_SPEC
+#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+
+/* A standard GNU/Linux mapping. On most targets, it is included in
+ CC1_SPEC itself by config/linux.h, but mips.h overrides CC1_SPEC
+ and provides this hook instead. */
+#undef SUBTARGET_CC1_SPEC
+#define SUBTARGET_CC1_SPEC "%{profile:-p}"
/* From iris5.h */
/* -G is incompatible with -KPIC which is the default, so only allow objects
#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}}"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
/* Borrowed from sparc/linux.h */
#undef LINK_SPEC
-#define LINK_SPEC "-Y P,/usr/lib %{shared:-shared} \
+#define LINK_SPEC \
+ "%(endian_spec) \
+ %{shared:-shared} \
%{!shared: \
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
%{static:-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
+#define SUBTARGET_ASM_SPEC "%{mabi=64: -64} %{!mno-abicalls:-KPIC}"
+
+/* 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_DEF
+#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
+ do { \
+ fputc ( '\t', FILE); \
+ assemble_name (FILE, LABEL1); \
+ fputs ( " = ", FILE); \
+ assemble_name (FILE, LABEL2); \
+ fputc ( '\n', FILE); \
+ } 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); \
+ } \
+ ASM_OUTPUT_TYPE_DIRECTIVE (STREAM, NAME, "function"); \
+ 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. */
+#undef FUNCTION_NAME_ALREADY_DECLARED
+#define FUNCTION_NAME_ALREADY_DECLARED 1
+
+/* The glibc _mcount stub will save $v0 for us. Don't mess with saving
+ it, since ASM_OUTPUT_REG_PUSH/ASM_OUTPUT_REG_POP do not work in the
+ presence of $gp-relative calls. */
+#undef ASM_OUTPUT_REG_PUSH
+#undef ASM_OUTPUT_REG_POP
-#undef EXTRA_SECTIONS
-#define EXTRA_SECTIONS in_sdata, in_rdata
-
-#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(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 */
+#undef LIB_SPEC
+#define LIB_SPEC "\
+%{shared: -lc} \
+%{!shared: %{pthread:-lpthread} \
+ %{profile:-lc_p} %{!profile: -lc}}"
+
+#define MD_UNWIND_SUPPORT "config/mips/linux-unwind.h"
+
+#ifdef HAVE_AS_NO_SHARED
+/* Default to -mno-shared for non-PIC. */
+#define NO_SHARED_SPECS \
+ "%{mshared|mno-shared|fpic|fPIC|fpie|fPIE:;:-mno-shared}"
+#define DRIVER_SELF_SPECS NO_SHARED_SPECS
+#else
+#define NO_SHARED_SPECS
+#endif
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