| /* Definitions of target machine for GNU compiler. Generic IRIX version. |
| Copyright (C) 1993, 1995, 1996, 1998, 2000, |
| 2001, 2002, 2003, 2004 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| 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. |
| |
| 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 GCC; see the file COPYING. If not, write to |
| the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| /* We are compiling for IRIX now. */ |
| #undef TARGET_IRIX |
| #define TARGET_IRIX 1 |
| |
| /* The size in bytes of a DWARF field indicating an offset or length |
| relative to a debug info section, specified to be 4 bytes in the DWARF-2 |
| specification. The SGI/MIPS ABI defines it to be the same as PTR_SIZE. */ |
| #define DWARF_OFFSET_SIZE PTR_SIZE |
| |
| /* The size in bytes of the initial length field in a debug info |
| section. The DWARF 3 (draft) specification defines this to be |
| either 4 or 12 (with a 4-byte "escape" word when it's 12), but the |
| SGI/MIPS ABI predates this standard and defines it to be the same |
| as DWARF_OFFSET_SIZE. */ |
| #define DWARF_INITIAL_LENGTH_SIZE DWARF_OFFSET_SIZE |
| |
| /* MIPS assemblers don't have the usual .set foo,bar construct; |
| .set is used for assembler options instead. */ |
| #undef SET_ASM_OP |
| #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) |
| |
| /* The MIPSpro o32 linker warns about not linking .comment sections. */ |
| #undef IDENT_ASM_OP |
| |
| #undef LOCAL_LABEL_PREFIX |
| #define LOCAL_LABEL_PREFIX (TARGET_NEWABI ? "." : "$") |
| |
| #undef ASM_DECLARE_OBJECT_NAME |
| #define ASM_DECLARE_OBJECT_NAME mips_declare_object_name |
| |
| #undef ASM_FINISH_DECLARE_OBJECT |
| #define ASM_FINISH_DECLARE_OBJECT mips_finish_declare_object |
| |
| /* Also do this for libcalls. */ |
| #undef TARGET_ASM_EXTERNAL_LIBCALL |
| #define TARGET_ASM_EXTERNAL_LIBCALL irix_output_external_libcall |
| |
| /* The linker needs a space after "-o". */ |
| #define SWITCHES_NEED_SPACES "o" |
| |
| /* Specify wchar_t types. */ |
| #undef WCHAR_TYPE |
| #define WCHAR_TYPE (Pmode == DImode ? "int" : "long int") |
| |
| #undef WCHAR_TYPE_SIZE |
| #define WCHAR_TYPE_SIZE INT_TYPE_SIZE |
| |
| /* Same for wint_t. */ |
| #undef WINT_TYPE |
| #define WINT_TYPE (Pmode == DImode ? "int" : "long int") |
| |
| #undef WINT_TYPE_SIZE |
| #define WINT_TYPE_SIZE 32 |
| |
| /* Plain char is unsigned in the SGI compiler. */ |
| #undef DEFAULT_SIGNED_CHAR |
| #define DEFAULT_SIGNED_CHAR 0 |
| |
| #define WORD_SWITCH_TAKES_ARG(STR) \ |
| (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \ |
| || strcmp (STR, "rpath") == 0) |
| |
| #define TARGET_OS_CPP_BUILTINS() \ |
| do \ |
| { \ |
| builtin_define_std ("host_mips"); \ |
| builtin_define_std ("sgi"); \ |
| builtin_define_std ("unix"); \ |
| builtin_define_std ("SYSTYPE_SVR4"); \ |
| builtin_define ("_MODERN_C"); \ |
| builtin_define ("_SVR4_SOURCE"); \ |
| builtin_define ("__DSO__"); \ |
| builtin_assert ("system=unix"); \ |
| builtin_assert ("system=svr4"); \ |
| builtin_assert ("machine=sgi"); \ |
| \ |
| if (mips_abi == ABI_32) \ |
| { \ |
| builtin_define ("_ABIO32=1"); \ |
| builtin_define ("_MIPS_SIM=_ABIO32"); \ |
| builtin_define ("_MIPS_SZINT=32"); \ |
| 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_SZINT=32"); \ |
| builtin_define ("_MIPS_SZLONG=64"); \ |
| builtin_define ("_MIPS_SZPTR=64"); \ |
| } \ |
| else \ |
| { \ |
| builtin_define ("_ABIN32=2"); \ |
| builtin_define ("_MIPS_SIM=_ABIN32"); \ |
| builtin_define ("_MIPS_SZINT=32"); \ |
| builtin_define ("_MIPS_SZLONG=32"); \ |
| builtin_define ("_MIPS_SZPTR=32"); \ |
| } \ |
| \ |
| if (!ISA_MIPS1 && !ISA_MIPS2) \ |
| builtin_define ("_COMPILER_VERSION=601"); \ |
| \ |
| if (!TARGET_FLOAT64) \ |
| builtin_define ("_MIPS_FPSET=16"); \ |
| else \ |
| builtin_define ("_MIPS_FPSET=32"); \ |
| \ |
| /* We must always define _LONGLONG, even when -ansi is \ |
| used, because IRIX 5 system header files require it. \ |
| This is OK, because gcc never warns when long long \ |
| is used in system header files. \ |
| \ |
| An alternative would be to support the SGI builtin \ |
| type __long_long. */ \ |
| builtin_define ("_LONGLONG"); \ |
| \ |
| /* IRIX 6.5.18 and above provide many ISO C99 \ |
| features protected by the __c99 macro. \ |
| libstdc++ v3 needs them as well. */ \ |
| if (TARGET_IRIX6) \ |
| if (flag_isoc99 || c_dialect_cxx ()) \ |
| builtin_define ("__c99"); \ |
| \ |
| /* The GNU C++ standard library requires that \ |
| __EXTENSIONS__ and _SGI_SOURCE be defined on at \ |
| least IRIX 6.2 and probably all IRIX 6 prior to 6.5. \ |
| We don't need this on IRIX 6.5 itself, but it \ |
| shouldn't hurt other than the namespace pollution. */ \ |
| if (!flag_iso || (TARGET_IRIX6 && c_dialect_cxx ())) \ |
| { \ |
| builtin_define ("__EXTENSIONS__"); \ |
| builtin_define ("_SGI_SOURCE"); \ |
| } \ |
| } \ |
| while (0) |
| |
| #undef SUBTARGET_CC1_SPEC |
| #define SUBTARGET_CC1_SPEC "%{static: -mno-abicalls}" |
| |
| #undef INIT_SECTION_ASM_OP |
| #define INIT_SECTION_ASM_OP "\t.section\t.gcc_init,\"ax\",@progbits" |
| |
| #undef FINI_SECTION_ASM_OP |
| #define FINI_SECTION_ASM_OP "\t.section\t.gcc_fini,\"ax\",@progbits" |
| |
| #ifdef IRIX_USING_GNU_LD |
| #define IRIX_NO_UNRESOLVED "" |
| #else |
| #define IRIX_NO_UNRESOLVED "-no_unresolved" |
| #endif |
| |
| /* Generic part of the LINK_SPEC. */ |
| #undef LINK_SPEC |
| #define LINK_SPEC "\ |
| %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \ |
| %{bestGnum} %{shared} %{non_shared} \ |
| %{call_shared} %{no_archive} %{exact_version} \ |
| %{!shared: \ |
| %{!non_shared: %{!call_shared:%{!r: -call_shared " IRIX_NO_UNRESOLVED "}}}} \ |
| %{rpath} -init __gcc_init -fini __gcc_fini " IRIX_SUBTARGET_LINK_SPEC |
| |
| /* A linker error can empirically be avoided by removing duplicate |
| library search directories. */ |
| #define LINK_ELIMINATE_DUPLICATE_LDIRECTORIES 1 |
| |
| /* Add -g to mips.h default to avoid confusing gas with local symbols |
| generated from stabs info. */ |
| #undef NM_FLAGS |
| #define NM_FLAGS "-Bng" |
| |
| /* The system header files are C++ aware. */ |
| /* ??? Unfortunately, most but not all of the headers are C++ aware. |
| Specifically, curses.h is not, and as a consequence, defining this |
| used to prevent libg++ building. This is no longer the case so |
| define it again to prevent other problems, e.g. with getopt in |
| unistd.h. We still need some way to fix just those files that need |
| fixing. */ |
| #define NO_IMPLICIT_EXTERN_C 1 |
| |
| /* -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 |
| |
| /* The native o32 IRIX linker does not support merging without a |
| special elspec(5) file. */ |
| #ifndef IRIX_USING_GNU_LD |
| #undef HAVE_GAS_SHF_MERGE |
| #define HAVE_GAS_SHF_MERGE 0 |
| #endif |
