/* Definitions for MIPS running Linux-based GNU systems with ELF format.
- Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2007 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)
+the Free Software Foundation; either version 3, 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. */
-
-#include "gofast.h"
-
-/* US Software GOFAST library support. */
-#define INIT_SUBTARGET_OPTABS INIT_GOFAST_OPTABS
-
-#include "mips/mips.h"
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#undef WCHAR_TYPE
#define WCHAR_TYPE "int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32
-/* 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 SBSS_SECTION_ASM_OP "\t.section .sbss"
-
-/* Like `ASM_OUTPUT_BSS' except takes the required alignment as a
- separate, explicit argument. If you define this macro, it is used
- in place of `ASM_OUTPUT_BSS', and gives you more flexibility in
- handling the required alignment of the variable. The alignment is
- specified as the number of bits.
-
- Try to use function `asm_output_aligned_bss' defined in file
- `varasm.c' when defining this macro. */
-#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
-do { \
- ASM_GLOBALIZE_LABEL (FILE, NAME); \
- if (SIZE > 0 && SIZE <= mips_section_threshold) \
- sbss_section (); \
- else \
- bss_section (); \
- ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \
- last_assemble_variable_decl = DECL; \
- ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL); \
- ASM_OUTPUT_SKIP (FILE, SIZE ? SIZE : 1); \
-} while (0)
-
-/* These macros generate the special .type and .size directives which
- are used to set the corresponding fields of the linker symbol table
- entries in an ELF object file under SVR4. These macros also output
- the starting labels for the relevant functions/objects. */
-
-/* Write the extra assembler code needed to declare an object properly. */
-
#undef ASM_DECLARE_OBJECT_NAME
-#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
- do { \
- fprintf (FILE, "%s", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- putc (',', FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
- putc ('\n', FILE); \
- size_directive_output = 0; \
- if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
- { \
- size_directive_output = 1; \
- fprintf (FILE, "%s", SIZE_ASM_OP); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, ",%d\n", \
- int_size_in_bytes (TREE_TYPE (DECL))); \
- } \
- mips_declare_object (FILE, NAME, "", ":\n", 0); \
- } while (0)
-
-#undef UNIQUE_SECTION
-#define UNIQUE_SECTION(DECL,RELOC) \
- mips_unique_section ((DECL), (RELOC))
-
-/* A list of other sections which the compiler might be "in" at any
- given time. */
-#undef EXTRA_SECTIONS
-#define EXTRA_SECTIONS in_sdata, in_sbss, in_rdata
-
-#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)
-
-#define SECTION_FUNCTION_TEMPLATE(FN, ENUM, OP) \
-void FN () \
-{ \
- if (in_section != ENUM) \
- { \
- fprintf (asm_out_file, "%s\n", OP); \
- in_section = ENUM; \
- } \
-}
-
-/* A C statement (sans semicolon) to output an element in the table of
- global constructors. */
-#undef ASM_OUTPUT_CONSTRUCTOR
-#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
- do { \
- ctors_section (); \
- fprintf (FILE, "\t%s\t", TARGET_LONG64 ? ".dword" : ".word"); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, "\n"); \
- } while (0)
-
-
-/* A C statement (sans semicolon) to output an element in the table of
- global destructors. */
-#undef ASM_OUTPUT_DESTRUCTOR
-#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
- do { \
- dtors_section (); \
- fprintf (FILE, "\t%s\t", TARGET_LONG64 ? ".dword" : ".word"); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, "\n"); \
- } while (0)
+#define ASM_DECLARE_OBJECT_NAME mips_declare_object_name
#undef TARGET_VERSION
#if TARGET_ENDIAN_DEFAULT == 0
#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. */
+/* If we don't set MASK_ABICALLS, we can't default to PIC. */
#undef TARGET_DEFAULT
-#define TARGET_DEFAULT (MASK_ABICALLS|MASK_GAS)
+#define TARGET_DEFAULT MASK_ABICALLS
-/* 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}"
+#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"); \
+ } while (0)
-/* 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}"
+#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{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) \
-"
+/* 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
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+
/* Borrowed from sparc/linux.h */
#undef LINK_SPEC
#define LINK_SPEC \
%{!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 "\
-%{mabi=64: -64} \
-%{!fno-PIC:%{!fno-pic:-KPIC}} \
-%{fno-PIC:-non_shared} %{fno-pic:-non_shared}"
+#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. */
fputc ( '\n', FILE); \
} 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 { \
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); \
+ ASM_OUTPUT_TYPE_DIRECTIVE (STREAM, NAME, "function"); \
assemble_name (STREAM, NAME); \
fputs (":\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
+#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 LIB_SPEC
+#define LIB_SPEC "\
+%{pthread:-lpthread} \
+%{shared:-lc} \
+%{!shared: \
+ %{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}"
+#else
+# define NO_SHARED_SPECS ""
+#endif
+
+/* -march=native handling only makes sense with compiler running on
+ a MIPS chip. */
+#if defined(__mips__)
+extern const char *host_detect_local_cpu (int argc, const char **argv);
+# define EXTRA_SPEC_FUNCTIONS \
+ { "local_cpu_detect", host_detect_local_cpu },
+
+# define MARCH_MTUNE_NATIVE_SPECS \
+ " %{march=native:%<march=native %:local_cpu_detect(arch)}" \
+ " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
+#else
+# define MARCH_MTUNE_NATIVE_SPECS ""
+#endif
+
+#define BASE_DRIVER_SELF_SPECS \
+ NO_SHARED_SPECS \
+ MARCH_MTUNE_NATIVE_SPECS
+#define DRIVER_SELF_SPECS BASE_DRIVER_SELF_SPECS
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