ad4ff31086
From-SVN: r13994
177 lines
5.6 KiB
C
177 lines
5.6 KiB
C
/* Definitions of target machine for GNU compiler.
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m68k series COFF object files and debugging, version.
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Copyright (C) 1994, 1996, 1997 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, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This file is included after m68k.h by CPU COFF specific files. It
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is not a complete target itself. */
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/* Generate sdb debugging information. */
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#define SDB_DEBUGGING_INFO
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/* Output DBX (stabs) debugging information if using -gstabs. */
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#include "dbxcoff.h"
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/* COFF symbols don't start with an underscore. */
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#undef USER_LABEL_PREFIX
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#define USER_LABEL_PREFIX ""
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/* Use a prefix for local labels, just to be on the save side. */
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#undef LOCAL_LABEL_PREFIX
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#define LOCAL_LABEL_PREFIX "."
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/* Use a register prefix to avoid clashes with external symbols (classic
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example: `extern char PC;' in termcap). */
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#undef REGISTER_PREFIX
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#define REGISTER_PREFIX "%"
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/* In the machine description we can't use %R, because it will not be seen
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by ASM_FPRINTF. (Isn't that a design bug?). */
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#undef REGISTER_PREFIX_MD
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#define REGISTER_PREFIX_MD "%%"
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/* config/m68k.md has an explicit reference to the program counter,
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prefix this by the register prefix. */
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#define ASM_RETURN_CASE_JUMP \
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do { \
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if (TARGET_5200) \
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return "ext%.l %0\n\tjmp %%pc@(2,%0:l)"; \
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else \
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return "jmp %%pc@(2,%0:w)"; \
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} while (0)
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/* Here are the new register names. */
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#undef REGISTER_NAMES
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#ifndef SUPPORT_SUN_FPA
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#define REGISTER_NAMES \
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{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
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"%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \
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"%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7" }
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#else /* SUPPORTED_SUN_FPA */
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#define REGISTER_NAMES \
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{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
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"%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \
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"%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7", \
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"%fpa0", "%fpa1", "%fpa2", "%fpa3", "%fpa4", "%fpa5", "%fpa6", "%fpa7", \
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"%fpa8", "%fpa9", "%fpa10", "%fpa11", "%fpa12", "%fpa13", "%fpa14", "%fpa15", \
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"%fpa16", "%fpa17", "%fpa18", "%fpa19", "%fpa20", "%fpa21", "%fpa22", "%fpa23", \
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"%fpa24", "%fpa25", "%fpa26", "%fpa27", "%fpa28", "%fpa29", "%fpa30", "%fpa31" }
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#endif /* defined SUPPORT_SUN_FPA */
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#undef ASM_FILE_START
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#define ASM_FILE_START(FILE) \
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output_file_directive ((FILE), main_input_filename)
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/* If defined, a C expression whose value is a string containing the
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assembler operation to identify the following data as uninitialized global
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data. */
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#define BSS_SECTION_ASM_OP ".section\t.bss"
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/* A C statement (sans semicolon) to output to the stdio stream
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FILE the assembler definition of uninitialized global DECL named
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NAME whose size is SIZE bytes and alignment is ALIGN bytes.
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Try to use asm_output_aligned_bss to implement this macro. */
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#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
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asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
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/* Support generic sections */
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#undef ASM_OUTPUT_SECTION_NAME
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#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC) \
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fprintf((FILE), ".section\t%s,\"%c\"\n", (NAME), \
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(DECL) && (TREE_CODE (DECL) == FUNCTION_DECL || \
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DECL_READONLY_SECTION (DECL, RELOC)) ? 'x' : 'd')
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/* Support the ctors and dtors sections for g++. */
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#define CTORS_SECTION_ASM_OP ".section\t.ctors,\"x\""
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#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"x\""
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/* A list of other sections which the compiler might be "in" at any
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given time. */
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#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS in_ctors, in_dtors
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/* A list of extra section function definitions. */
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#undef EXTRA_SECTION_FUNCTIONS
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#define EXTRA_SECTION_FUNCTIONS \
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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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#define INT_ASM_OP ".long"
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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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/* Don't assume anything about startfiles. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC ""
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