| /* Definitions of target machine for GNU compiler. Iris version 5. |
| Copyright (C) 1993, 1995, 1996 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. */ |
| |
| #ifndef TARGET_DEFAULT |
| #define TARGET_DEFAULT MASK_ABICALLS |
| #endif |
| #define ABICALLS_ASM_OP ".option pic2" |
| |
| #include "mips/iris4.h" |
| |
| /* Irix 5 doesn't use COFF, so disable special COFF handling in collect2.c. */ |
| #undef OBJECT_FORMAT_COFF |
| |
| /* ??? This is correct, but not very useful, because there is no file that |
| uses this macro. */ |
| /* ??? The best way to handle global constructors under ELF is to use .init |
| and .fini sections. Unfortunately, there is apparently no way to get |
| the Irix 5.x (x <= 2) assembler to create these sections. So we instead |
| use collect. The linker can create these sections via -init and -fini |
| options, but using this would require modifying how crtstuff works, and |
| I will leave that for another time (or someone else). */ |
| #define OBJECT_FORMAT_ELF |
| #define HAS_INIT_SECTION |
| #define LD_INIT_SWITCH "-init" |
| #define LD_FINI_SWITCH "-fini" |
| |
| /* Specify wchar_t types. */ |
| #undef WCHAR_TYPE |
| #undef WCHAR_TYPE_SIZE |
| #undef MAX_WCHAR_TYPE_SIZE |
| |
| #define WCHAR_TYPE "long int" |
| #define WCHAR_TYPE_SIZE LONG_TYPE_SIZE |
| #define MAX_WCHAR_TYPE_SIZE MAX_LONG_TYPE_SIZE |
| |
| #define WORD_SWITCH_TAKES_ARG(STR) \ |
| (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \ |
| || !strcmp (STR, "rpath")) |
| |
| #undef SUBTARGET_CC1_SPEC |
| #define SUBTARGET_CC1_SPEC "%{static: -mno-abicalls}" |
| |
| /* ??? _MIPS_SIM and _MIPS_SZPTR should eventually depend on options when |
| options for them exist. */ |
| |
| #undef CPP_PREDEFINES |
| #define CPP_PREDEFINES \ |
| "-Dunix -Dmips -Dsgi -Dhost_mips -DMIPSEB -D_MIPSEB -DSYSTYPE_SVR4 \ |
| -D_SVR4_SOURCE -D_MODERN_C -D__DSO__ \ |
| -D_MIPS_SIM=_MIPS_SIM_ABI32 -D_MIPS_SZPTR=32 \ |
| -Asystem(unix) -Asystem(svr4) -Acpu(mips) -Amachine(sgi)" |
| |
| #undef SUBTARGET_CPP_SPEC |
| #define SUBTARGET_CPP_SPEC "\ |
| %{!ansi:-D__EXTENSIONS__ -D_SGI_SOURCE -D_LONGLONG} \ |
| %{!mfp64: -D_MIPS_FPSET=16}%{mfp64: -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} \ |
| %{!mips1: %{!mips2: %{!mips3: -D_MIPS_ISA=_MIPS_ISA_MIPS1}}} \ |
| %{!mint64: -D_MIPS_SZINT=32}%{mint64: -D_MIPS_SZINT=64} \ |
| %{!mlong64: -D_MIPS_SZLONG=32}%{mlong64: -D_MIPS_SZLONG=64}" |
| |
| #undef LINK_SPEC |
| #define LINK_SPEC "\ |
| %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \ |
| %{bestGnum} %{shared} %{non_shared} \ |
| %{call_shared} %{no_archive} %{exact_version} \ |
| %{static: -non_shared} \ |
| %{!static: \ |
| %{!shared:%{!non_shared:%{!call_shared: -call_shared -no_unresolved}}}} \ |
| %{rpath} \ |
| -_SYSTYPE_SVR4" |
| |
| /* We now support shared libraries. */ |
| #undef STARTFILE_SPEC |
| #define STARTFILE_SPEC "\ |
| %{!static: \ |
| %{!shared:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}}} \ |
| %{static: \ |
| %{pg:gcrt1.o%s} \ |
| %{!pg:%{p:/usr/lib/nonshared/mcrt1.o%s libprof1.a%s} \ |
| %{!p:/usr/lib/nonshared/crt1.o%s}}}" |
| |
| #undef LIB_SPEC |
| #define LIB_SPEC "%{!shared:%{p:-lprof1} %{pg:-lprof1} -lc}" |
| |
| #undef ENDFILE_SPEC |
| #define ENDFILE_SPEC "%{!shared:crtn.o%s}" |
| |
| /* We do not want to run mips-tfile! */ |
| #undef ASM_FINAL_SPEC |
| |
| /* 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 |
| |
| /* We don't support debugging info for now. */ |
| #undef DBX_DEBUGGING_INFO |
| #undef SDB_DEBUGGING_INFO |
| #undef MIPS_DEBUGGING_INFO |
| |
| #undef MACHINE_TYPE |
| #define MACHINE_TYPE "SGI running IRIX 5.x" |
| |
| /* Dollar signs are OK in Irix5 but not in Irix3. */ |
| #undef DOLLARS_IN_IDENTIFIERS |
| #undef NO_DOLLAR_IN_LABEL |
| |
| /* -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 |
| |
| /* In Irix 5, we must output a `.global name .text' directive for every used |
| but undefined function. If we don't, the linker may perform an optimization |
| (skipping over the insns that set $gp) when it is unsafe. This is used |
| indirectly by ASM_OUTPUT_EXTERNAL. */ |
| #define ASM_OUTPUT_UNDEF_FUNCTION(FILE, NAME) \ |
| do { \ |
| fputs ("\t.globl ", FILE); \ |
| assemble_name (FILE, NAME); \ |
| fputs (" .text\n", FILE); \ |
| } while (0) |
| |
| /* Also do this for libcalls. */ |
| #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \ |
| mips_output_external_libcall (FILE, XSTR (FUN, 0)) |
| |
| /* This does for functions what ASM_DECLARE_OBJECT_NAME does for variables. |
| This is used indirectly by ASM_OUTPUT_EXTERNAL. */ |
| #define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL) \ |
| do { \ |
| tree name_tree = get_identifier (NAME); \ |
| TREE_ASM_WRITTEN (name_tree) = 1; \ |
| } while (0) |