285 lines
9.4 KiB
C
285 lines
9.4 KiB
C
/* Definitions of target machine for GNU compiler. Iris version 6.
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Copyright (C) 1994 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Irix 6 uses DWARF. */
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#define DWARF_DEBUGGING_INFO
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#define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
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/* Default to -mips4. */
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#define TARGET_DEFAULT MASK_ABICALLS|MASK_FLOAT64|MASK_64BIT
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#define MIPS_ISA_DEFAULT 4
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#include "mips/iris5gas.h"
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#include "mips/abi64.h"
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/* The Irix 6.0.1 assembler doesn't like labels in the text section, so
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just avoid emitting them. */
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#define ASM_IDENTIFY_GCC
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#define ASM_IDENTIFY_LANGUAGE
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/* Irix 5 stuff that we don't need for Irix 6. */
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#undef ASM_OUTPUT_UNDEF_FUNCTION
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#undef ASM_OUTPUT_EXTERNAL_LIBCALL
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#undef ASM_DECLARE_FUNCTION_SIZE
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/* Stuff we need for Irix 6 that isn't in Irix 5. */
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#undef SET_ASM_OP /* Has no equivalent. See ASM_OUTPUT_DEF below. */
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/* This is how to equate one symbol to another symbol. The syntax used is
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`SYM1=SYM2'. Note that this is different from the way equates are done
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with most svr4 assemblers, where the syntax is `.set SYM1,SYM2'. */
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#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
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do { fprintf ((FILE), "\t"); \
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assemble_name (FILE, LABEL1); \
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fprintf (FILE, " = "); \
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assemble_name (FILE, LABEL2); \
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fprintf (FILE, "\n"); \
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} while (0)
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#define POPSECTION_ASM_OP ".popsection"
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/* To enable use of init and fini sections. */
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#define INIT_SECTION_ASM_OP ".section\t.init"
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#undef LD_INIT_SWITCH
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#undef LD_FINI_SWITCH
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#undef HAS_INIT_SECTION
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#define DEBUG_SECTION ".debug,1,0,0,1"
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#define LINE_SECTION ".line,1,0,0,1"
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#define SFNAMES_SECTION ".debug_sfnames,1,0,0,1"
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#define SRCINFO_SECTION ".debug_srcinfo,1,0,0,1"
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#define MACINFO_SECTION ".debug_macinfo,1,0,0,1"
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#define PUBNAMES_SECTION ".debug_pubnames,1,0,0,1"
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#define ARANGES_SECTION ".debug_aranges,1,0,0,1"
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#undef ASM_SPEC
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#if ((TARGET_CPU_DEFAULT | TARGET_DEFAULT) & MASK_GAS) != 0
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/* GAS */
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#define ASM_SPEC "\
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%{mmips-as: \
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%{!.s:-nocpp} %{.s: %{cpp} %{nocpp}} \
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%{pipe: %e-pipe is not supported.} \
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%{K}} \
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%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} %{v} \
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%{noasmopt:-O0} \
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%{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \
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%{g} %{g0} %{g1} %{g2} %{g3} \
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%{ggdb:-g} %{ggdb0:-g0} %{ggdb1:-g1} %{ggdb2:-g2} %{ggdb3:-g3} \
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%{gstabs:-g} %{gstabs0:-g0} %{gstabs1:-g1} %{gstabs2:-g2} %{gstabs3:-g3} \
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%{gstabs+:-g} %{gstabs+0:-g0} %{gstabs+1:-g1} %{gstabs+2:-g2} %{gstabs+3:-g3} \
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%{gcoff:-g} %{gcoff0:-g0} %{gcoff1:-g1} %{gcoff2:-g2} %{gcoff3:-g3} \
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%{membedded-pic}"
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#else
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/* not GAS */
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/* Must pass -g0 to the assembler, otherwise it may overwrite our
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debug info with its own debug info. */
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/* Must pass -show instead of -v. */
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/* Must pass -G 0 to the assembler, otherwise we may get warnings about
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GOT overflow. */
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#define ASM_SPEC "\
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%{!mgas: \
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%{!.s:-nocpp} %{.s: %{cpp} %{nocpp}} \
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%{pipe: %e-pipe is not supported.} \
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%{K}} \
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%{G*} %{EB} %{EL} %{v:-show} \
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%{mips1} %{mips2} %{mips3} %{mips4} \
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%{!mips1: %{!mips2: %{!mips3: %{!mips4: -mips4}}}} \
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%{noasmopt:-O0} %{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \
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-g0 -G 0 %{membedded-pic}"
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#endif
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/* Stuff for constructors. Start here. */
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#define CONST_SECTION_ASM_OP_32 "\t.rdata"
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#define CONST_SECTION_ASM_OP_64 ".section\t.rodata"
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#define CTORS_SECTION_ASM_OP ".section\t.ctors,1,2,0,4"
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#define DTORS_SECTION_ASM_OP ".section\t.dtors,1,2,0,4"
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/* This is the pseudo-op used to generate a 32-bit word of data with a
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specific value in some section. This is the same for all known svr4
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assemblers. */
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#define INT_ASM_OP ".word"
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/* A default list of other sections which we might be "in" at any given
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time. For targets that use additional sections (e.g. .tdesc) you
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should override this definition in the target-specific file which
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includes this file. */
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#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS in_sdata, in_rdata, in_const, in_ctors, in_dtors, in_bss
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/* A default list of extra section function definitions. For targets
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that use additional sections (e.g. .tdesc) you should override this
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definition in the target-specific file which includes this file. */
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/* ??? rdata_section is now same as svr4 const_section. */
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#undef EXTRA_SECTION_FUNCTIONS
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#define EXTRA_SECTION_FUNCTIONS \
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void \
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sdata_section () \
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{ \
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if (in_section != in_sdata) \
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{ \
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fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \
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in_section = in_sdata; \
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} \
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} \
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\
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void \
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rdata_section () \
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{ \
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if (in_section != in_rdata) \
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{ \
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if (mips_isa >= 3) \
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fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP_64); \
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else \
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fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP_32); \
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in_section = in_rdata; \
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} \
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} \
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CTORS_SECTION_FUNCTION \
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DTORS_SECTION_FUNCTION
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#define CTORS_SECTION_FUNCTION \
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void \
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ctors_section () \
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{ \
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if (in_section != in_ctors) \
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{ \
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fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
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in_section = in_ctors; \
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} \
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}
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#define DTORS_SECTION_FUNCTION \
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void \
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dtors_section () \
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{ \
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if (in_section != in_dtors) \
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{ \
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fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
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in_section = in_dtors; \
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} \
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}
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/* A C statement (sans semicolon) to output an element in the table of
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global constructors. */
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#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
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do { \
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ctors_section (); \
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fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, "\n"); \
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} while (0)
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/* A C statement (sans semicolon) to output an element in the table of
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global destructors. */
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#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
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do { \
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dtors_section (); \
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fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, "\n"); \
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} while (0)
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/* Stuff for constructors. End here. */
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/* ??? Perhaps just include svr4.h in this file? */
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/* ??? SGI assembler may core dump when compiling with -g.
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Sometimes as succeeds, but then we get a linker error. (cmds.c in 072.sc)
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Getting rid of .file solves both problems. */
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#undef ASM_OUTPUT_FILENAME
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#define ASM_OUTPUT_FILENAME(STREAM, NUM_SOURCE_FILENAMES, NAME) \
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do \
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{ \
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fprintf (STREAM, "\t#.file\t%d ", NUM_SOURCE_FILENAMES); \
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output_quoted_string (STREAM, NAME); \
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fputs ("\n", STREAM); \
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} \
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while (0)
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/* ??? SGI assembler gives warning whenever .lcomm is used. */
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#undef ASM_OUTPUT_LOCAL
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#define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN) \
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do \
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{ \
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if (mips_isa >= 3) \
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{ \
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fputs ("\t.section\t.bss\n", STREAM); \
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ASM_DECLARE_OBJECT_NAME (STREAM, NAME, 0); \
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ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \
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ASM_OUTPUT_SKIP (STREAM, SIZE); \
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fprintf (STREAM, "\t%s\n", POPSECTION_ASM_OP); \
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} \
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else \
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mips_declare_object (STREAM, NAME, "\n\t.lcomm\t", ",%u\n", (SIZE)); \
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} \
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while (0)
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#undef ASM_OUTPUT_INTERNAL_LABEL
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#define ASM_OUTPUT_INTERNAL_LABEL(STREAM,PREFIX,NUM) \
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fprintf (STREAM, ".%s%d:\n", PREFIX, NUM)
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/* This is how to store into the string LABEL
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the symbol_ref name of an internal numbered label where
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PREFIX is the class of label and NUM is the number within the class.
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This is suitable for output with `assemble_name'. */
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#undef ASM_GENERATE_INTERNAL_LABEL
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#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
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sprintf (LABEL, "*.%s%d", PREFIX, NUM)
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#undef STARTFILE_SPEC
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/* Profiling is supported via libprof1.a not -lc_p as in Irix 3. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC \
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"%{mips1:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \
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%{mips2:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \
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%{!mips1:%{!mips2:%{pg:/usr/lib64/gcrt1.o}%{!pg:%{p:/usr/lib64/mcrt1.o /usr/lib64/libprof1.a}%{!p:/usr/lib64/crt1.o}}}}"
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#undef LIB_SPEC
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#define LIB_SPEC "%{p:libprof1.a%s}%{pg:libprof1.a%s} -lc"
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC \
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"%{mips1:crtn.o%s}%{mips2:crtn.o%s}%{!mips1:%{!mips2:/usr/lib64/crtn.o}}"
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#undef LINK_SPEC
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#define LINK_SPEC "\
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%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \
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%{bestGnum} %{shared} %{non_shared} \
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%{call_shared} %{no_archive} %{exact_version} \
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%{!shared: %{!non_shared: %{!call_shared: -call_shared -no_unresolved}}} \
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-_SYSTYPE_SVR4"
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/* ??? Debugging does not work. We get many assembler core dumps,
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and even some linker core dumps. */
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#undef DBX_DEBUGGING_INFO
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#undef SDB_DEBUGGING_INFO
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#undef MIPS_DEBUGGING_INFO
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#undef DWARF_DEBUGGING_INFO
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#undef PREFERRED_DEBUGGING_TYPE
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