103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
/* Definitions of target machine for GNU compiler, for SPARC using a.out.
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Copyright (C) 1994, 1996 Free Software Foundation, Inc.
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Contributed by Michael Tiemann (tiemann@cygnus.com).
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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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/* Print subsidiary information on the compiler version in use. */
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#define TARGET_VERSION fprintf (stderr, " (sparc)");
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/* Names to predefine in the preprocessor for this target machine.
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??? It would be nice to not include any subtarget specific values here,
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however there's no way to portably provide subtarget values to
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CPP_PREFINES. Also, -D values in CPP_SUBTARGET_SPEC don't get turned into
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foo, __foo and __foo__. */
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#define CPP_PREDEFINES "-Dsparc -Acpu=sparc -Amachine=sparc"
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/* These compiler options take an argument. We ignore -target for now. */
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#define WORD_SWITCH_TAKES_ARG(STR) \
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(DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \
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|| !strcmp (STR, "target") || !strcmp (STR, "assert"))
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/* This is defined differently for v9 in a cover file. */
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#define SELECT_SECTION(T,RELOC,ALIGN) \
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{ \
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if (TREE_CODE (T) == VAR_DECL) \
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{ \
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if (TREE_READONLY (T) && ! TREE_SIDE_EFFECTS (T) \
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&& DECL_INITIAL (T) \
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&& (DECL_INITIAL (T) == error_mark_node \
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|| TREE_CONSTANT (DECL_INITIAL (T))) \
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&& DECL_ALIGN (T) <= MAX_TEXT_ALIGN \
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&& ! (flag_pic && ((RELOC) || SUNOS4_SHARED_LIBRARIES))) \
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text_section (); \
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else \
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data_section (); \
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} \
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else if (TREE_CODE (T) == CONSTRUCTOR) \
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{ \
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if (flag_pic && ((RELOC) || SUNOS4_SHARED_LIBRARIES)) \
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data_section (); \
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} \
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else if (TREE_CODE_CLASS (TREE_CODE (T)) == 'c') \
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{ \
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if ((TREE_CODE (T) == STRING_CST && flag_writable_strings) \
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|| TYPE_ALIGN (TREE_TYPE (T)) > MAX_TEXT_ALIGN \
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|| (flag_pic && ((RELOC) || SUNOS4_SHARED_LIBRARIES))) \
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data_section (); \
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else \
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text_section (); \
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} \
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}
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/* Output the label for a function definition. */
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#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
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do { \
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ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
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ASM_OUTPUT_LABEL (FILE, NAME); \
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} while (0)
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/* Output before read-only data. */
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#define TEXT_SECTION_ASM_OP "\t.text"
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/* Output before writable data. */
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#define DATA_SECTION_ASM_OP "\t.data"
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/* How to renumber registers for dbx and gdb. In the flat model, the frame
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pointer is really %i7. */
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#define DBX_REGISTER_NUMBER(REGNO) \
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(TARGET_FLAT && (REGNO) == HARD_FRAME_POINTER_REGNUM ? 31 : REGNO)
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/* This is how to output a note to DBX telling it the line number
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to which the following sequence of instructions corresponds.
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This is needed for SunOS 4.0, and should not hurt for 3.2
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versions either. */
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#define ASM_OUTPUT_SOURCE_LINE(file, line) \
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{ static int sym_lineno = 1; \
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fprintf (file, ".stabn 68,0,%d,LM%d\nLM%d:\n", \
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line, sym_lineno, sym_lineno); \
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sym_lineno += 1; }
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