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- /* Definitions of target machine for GNU compiler. Iris version 6.
- Copyright (C) 1994 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. */
-
- /* Irix 6 uses DWARF. */
- #define DWARF_DEBUGGING_INFO
- #define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
-
- /* Default to -mips4. */
- #define TARGET_DEFAULT MASK_ABICALLS|MASK_FLOAT64|MASK_64BIT
- #define MIPS_ISA_DEFAULT 4
-
- #include "mips/iris5gas.h"
- #include "mips/abi64.h"
-
- /* The Irix 6.0.1 assembler doesn't like labels in the text section, so
- just avoid emitting them. */
- #define ASM_IDENTIFY_GCC
- #define ASM_IDENTIFY_LANGUAGE
-
- /* Irix 5 stuff that we don't need for Irix 6. */
- #undef ASM_OUTPUT_UNDEF_FUNCTION
- #undef ASM_OUTPUT_EXTERNAL_LIBCALL
- #undef ASM_DECLARE_FUNCTION_SIZE
-
- /* Stuff we need for Irix 6 that isn't in Irix 5. */
-
- #undef SET_ASM_OP /* Has no equivalent. See ASM_OUTPUT_DEF below. */
-
- /* This is how to equate one symbol to another symbol. The syntax used is
- `SYM1=SYM2'. Note that this is different from the way equates are done
- with most svr4 assemblers, where the syntax is `.set SYM1,SYM2'. */
-
- #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)
-
- #define POPSECTION_ASM_OP ".popsection"
-
- /* To enable use of init and fini sections. */
- #define INIT_SECTION_ASM_OP ".section\t.init"
- #undef LD_INIT_SWITCH
- #undef LD_FINI_SWITCH
- #undef HAS_INIT_SECTION
-
- #define DEBUG_SECTION ".debug,1,0,0,1"
- #define LINE_SECTION ".line,1,0,0,1"
- #define SFNAMES_SECTION ".debug_sfnames,1,0,0,1"
- #define SRCINFO_SECTION ".debug_srcinfo,1,0,0,1"
- #define MACINFO_SECTION ".debug_macinfo,1,0,0,1"
- #define PUBNAMES_SECTION ".debug_pubnames,1,0,0,1"
- #define ARANGES_SECTION ".debug_aranges,1,0,0,1"
-
- #undef ASM_SPEC
- #if ((TARGET_CPU_DEFAULT | TARGET_DEFAULT) & MASK_GAS) != 0
- /* GAS */
- #define ASM_SPEC "\
- %{mmips-as: \
- %{!.s:-nocpp} %{.s: %{cpp} %{nocpp}} \
- %{pipe: %e-pipe is not supported.} \
- %{K}} \
- %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} %{v} \
- %{noasmopt:-O0} \
- %{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \
- %{g} %{g0} %{g1} %{g2} %{g3} \
- %{ggdb:-g} %{ggdb0:-g0} %{ggdb1:-g1} %{ggdb2:-g2} %{ggdb3:-g3} \
- %{gstabs:-g} %{gstabs0:-g0} %{gstabs1:-g1} %{gstabs2:-g2} %{gstabs3:-g3} \
- %{gstabs+:-g} %{gstabs+0:-g0} %{gstabs+1:-g1} %{gstabs+2:-g2} %{gstabs+3:-g3} \
- %{gcoff:-g} %{gcoff0:-g0} %{gcoff1:-g1} %{gcoff2:-g2} %{gcoff3:-g3} \
- %{membedded-pic}"
-
- #else
- /* not GAS */
- /* Must pass -g0 to the assembler, otherwise it may overwrite our
- debug info with its own debug info. */
- /* Must pass -show instead of -v. */
- /* Must pass -G 0 to the assembler, otherwise we may get warnings about
- GOT overflow. */
- #define ASM_SPEC "\
- %{!mgas: \
- %{!.s:-nocpp} %{.s: %{cpp} %{nocpp}} \
- %{pipe: %e-pipe is not supported.} \
- %{K}} \
- %{G*} %{EB} %{EL} %{v:-show} \
- %{mips1} %{mips2} %{mips3} %{mips4} \
- %{!mips1: %{!mips2: %{!mips3: %{!mips4: -mips4}}}} \
- %{noasmopt:-O0} %{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \
- -g0 -G 0 %{membedded-pic}"
-
- #endif
-
- /* Stuff for constructors. Start here. */
-
- #define CONST_SECTION_ASM_OP_32 "\t.rdata"
- #define CONST_SECTION_ASM_OP_64 ".section\t.rodata"
- #define CTORS_SECTION_ASM_OP ".section\t.ctors,1,2,0,4"
- #define DTORS_SECTION_ASM_OP ".section\t.dtors,1,2,0,4"
-
- /* This is the pseudo-op used to generate a 32-bit word of data with a
- specific value in some section. This is the same for all known svr4
- assemblers. */
-
- #define INT_ASM_OP ".word"
-
- /* A default list of other sections which we might be "in" at any given
- time. For targets that use additional sections (e.g. .tdesc) you
- should override this definition in the target-specific file which
- includes this file. */
-
- #undef EXTRA_SECTIONS
- #define EXTRA_SECTIONS in_sdata, in_rdata, in_const, in_ctors, in_dtors, in_bss
-
- /* A default list of extra section function definitions. For targets
- that use additional sections (e.g. .tdesc) you should override this
- definition in the target-specific file which includes this file. */
-
- /* ??? rdata_section is now same as svr4 const_section. */
-
- #undef EXTRA_SECTION_FUNCTIONS
- #define EXTRA_SECTION_FUNCTIONS \
- void \
- sdata_section () \
- { \
- if (in_section != in_sdata) \
- { \
- fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \
- in_section = in_sdata; \
- } \
- } \
- \
- void \
- rdata_section () \
- { \
- if (in_section != in_rdata) \
- { \
- if (mips_isa >= 3) \
- fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP_64); \
- else \
- fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP_32); \
- in_section = in_rdata; \
- } \
- } \
- CTORS_SECTION_FUNCTION \
- DTORS_SECTION_FUNCTION
-
- #define CTORS_SECTION_FUNCTION \
- void \
- ctors_section () \
- { \
- if (in_section != in_ctors) \
- { \
- fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
- in_section = in_ctors; \
- } \
- }
-
- #define DTORS_SECTION_FUNCTION \
- void \
- dtors_section () \
- { \
- if (in_section != in_dtors) \
- { \
- fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
- in_section = in_dtors; \
- } \
- }
-
- /* A C statement (sans semicolon) to output an element in the table of
- global constructors. */
- #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
- do { \
- ctors_section (); \
- fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, "\n"); \
- } while (0)
-
- /* A C statement (sans semicolon) to output an element in the table of
- global destructors. */
- #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
- do { \
- dtors_section (); \
- fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, "\n"); \
- } while (0)
-
- /* Stuff for constructors. End here. */
-
- /* ??? Perhaps just include svr4.h in this file? */
-
- /* ??? SGI assembler may core dump when compiling with -g.
- Sometimes as succeeds, but then we get a linker error. (cmds.c in 072.sc)
- Getting rid of .file solves both problems. */
- #undef ASM_OUTPUT_FILENAME
- #define ASM_OUTPUT_FILENAME(STREAM, NUM_SOURCE_FILENAMES, NAME) \
- do \
- { \
- fprintf (STREAM, "\t#.file\t%d ", NUM_SOURCE_FILENAMES); \
- output_quoted_string (STREAM, NAME); \
- fputs ("\n", STREAM); \
- } \
- while (0)
-
- /* ??? SGI assembler gives warning whenever .lcomm is used. */
- #undef ASM_OUTPUT_LOCAL
- #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN) \
- do \
- { \
- if (mips_isa >= 3) \
- { \
- fputs ("\t.section\t.bss\n", STREAM); \
- ASM_DECLARE_OBJECT_NAME (STREAM, NAME, 0); \
- ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \
- ASM_OUTPUT_SKIP (STREAM, SIZE); \
- fprintf (STREAM, "\t%s\n", POPSECTION_ASM_OP); \
- } \
- else \
- mips_declare_object (STREAM, NAME, "\n\t.lcomm\t", ",%u\n", (SIZE)); \
- } \
- while (0)
-
- #undef ASM_OUTPUT_INTERNAL_LABEL
- #define ASM_OUTPUT_INTERNAL_LABEL(STREAM,PREFIX,NUM) \
- fprintf (STREAM, ".%s%d:\n", PREFIX, NUM)
-
- /* This is how to store into the string LABEL
- the symbol_ref name of an internal numbered label where
- PREFIX is the class of label and NUM is the number within the class.
- This is suitable for output with `assemble_name'. */
-
- #undef ASM_GENERATE_INTERNAL_LABEL
- #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
- sprintf (LABEL, "*.%s%d", PREFIX, NUM)
-
- #undef STARTFILE_SPEC
- /* Profiling is supported via libprof1.a not -lc_p as in Irix 3. */
- #undef STARTFILE_SPEC
- #define STARTFILE_SPEC \
- "%{mips1:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \
- %{mips2:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \
- %{!mips1:%{!mips2:%{pg:/usr/lib64/gcrt1.o}%{!pg:%{p:/usr/lib64/mcrt1.o /usr/lib64/libprof1.a}%{!p:/usr/lib64/crt1.o}}}}"
-
- #undef LIB_SPEC
- #define LIB_SPEC "%{p:libprof1.a%s}%{pg:libprof1.a%s} -lc"
-
- #undef ENDFILE_SPEC
- #define ENDFILE_SPEC \
- "%{mips1:crtn.o%s}%{mips2:crtn.o%s}%{!mips1:%{!mips2:/usr/lib64/crtn.o}}"
-
- #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: -call_shared -no_unresolved}}} \
- -_SYSTYPE_SVR4"
-
- /* ??? Debugging does not work. We get many assembler core dumps,
- and even some linker core dumps. */
- #undef DBX_DEBUGGING_INFO
- #undef SDB_DEBUGGING_INFO
- #undef MIPS_DEBUGGING_INFO
- #undef DWARF_DEBUGGING_INFO
- #undef PREFERRED_DEBUGGING_TYPE
-