1996-09-18 05:35:50 +00:00
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/* Definitions of target machine for GNU compiler for Intel 80386
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running FreeBSD.
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Copyright (C) 1988, 1992, 1994 Free Software Foundation, Inc.
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Contributed by Poul-Henning Kamp <phk@login.dkuug.dk>
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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 is tested by i386gas.h. */
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#define YES_UNDERSCORES
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/* Don't assume anything about the header files. */
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#define NO_IMPLICIT_EXTERN_C
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#include "i386/gstabs.h"
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/* Get perform_* macros to build libgcc.a. */
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#include "i386/perform.h"
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1996-09-18 06:54:11 +00:00
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/* This was cloned from ../netbsd.h. It and several other things in
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this file should be in ../freebsd.h. */
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/* FREEBSD_NATIVE is defined when gcc is integrated into the FreeBSD
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source tree so it can be configured appropriately without using
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the GNU configure/build mechanism. */
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#ifdef FREEBSD_NATIVE
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/* Look for the include files in the system-defined places. */
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#define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++"
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#define GCC_INCLUDE_DIR "/usr/include"
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/* FreeBSD has GCC_INCLUDE_DIR first. */
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#define INCLUDE_DEFAULTS \
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{ \
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{ GCC_INCLUDE_DIR, 0, 0 }, \
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{ GPLUSPLUS_INCLUDE_DIR, 1, 1 }, \
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{ 0, 0, 0 } \
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}
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1996-09-18 05:35:50 +00:00
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1996-09-18 06:54:11 +00:00
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/* Under FreeBSD, the normal location of the compiler back ends is the
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/usr/libexec directory. */
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#define STANDARD_EXEC_PREFIX "/usr/libexec/"
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/* Under FreeBSD, the normal location of the various *crt*.o files is the
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/usr/lib directory. */
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#define STANDARD_STARTFILE_PREFIX "/usr/lib/"
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/* On FreeBSD, gcc is called 'cc' */
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#define GCC_NAME "cc"
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/* FreeBSD is 4.4BSD derived */
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#define bsd4_4
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#endif /* FREEBSD_NATIVE */
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#define MASK_PROFILER_EPILOGUE 010000000000
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#define TARGET_PROFILER_EPILOGUE (target_flags & MASK_PROFILER_EPILOGUE)
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#undef SUBTARGET_SWITCHES
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#define SUBTARGET_SWITCHES \
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{ "profiler-epilogue", MASK_PROFILER_EPILOGUE}, \
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{ "no-profiler-epilogue", -MASK_PROFILER_EPILOGUE},
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1996-09-18 05:35:50 +00:00
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#undef CPP_PREDEFINES
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1996-09-18 06:54:11 +00:00
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#define CPP_PREDEFINES "-Dunix -Di386 -D__FreeBSD__=2 -Asystem(unix) -Asystem(FreeBSD) -Acpu(i386) -Amachine(i386)"
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#define ASM_SPEC " %| %{fpic:-k} %{fPIC:-k}"
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1996-09-18 05:35:50 +00:00
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/* Like the default, except no -lg. */
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#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
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1996-09-18 06:54:11 +00:00
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#define LINK_SPEC \
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"%{!nostdlib:%{!r:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} %{assert*} \
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%{p:-Bstatic} %{pg:-Bstatic} %{Z}"
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#define LINK_LIBGCC_SPECIAL_1 1
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#define STARTFILE_SPEC \
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"%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:%{static:scrt0.o%s}%{!static:crt0.o%s}}}"
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/* This goes away when the math emulator is fixed. */
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT (MASK_NO_FANCY_MATH_387 | 0301)
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1996-09-18 05:35:50 +00:00
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#undef SIZE_TYPE
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#define SIZE_TYPE "unsigned int"
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "int"
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#undef WCHAR_TYPE
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1996-09-18 06:54:11 +00:00
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#define WCHAR_TYPE "int"
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1996-09-18 05:35:50 +00:00
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1996-09-18 06:54:11 +00:00
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#define WCHAR_UNSIGNED 0
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1996-09-18 05:35:50 +00:00
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#undef WCHAR_TYPE_SIZE
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1996-09-18 06:54:11 +00:00
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#define WCHAR_TYPE_SIZE BITS_PER_WORD
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1996-09-18 05:35:50 +00:00
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#define HAVE_ATEXIT
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1996-09-18 06:54:11 +00:00
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#define HAVE_PUTENV
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/* Override the default comment-starter of "/". */
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#undef ASM_COMMENT_START
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#define ASM_COMMENT_START "#"
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1996-09-18 05:35:50 +00:00
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#undef ASM_APP_ON
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#define ASM_APP_ON "#APP\n"
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#undef ASM_APP_OFF
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#define ASM_APP_OFF "#NO_APP\n"
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/* The following macros are stolen from i386v4.h */
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/* These have to be defined to get PIC code correct */
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/* This is how to output an element of a case-vector that is relative.
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This is only used for PIC code. See comments by the `casesi' insn in
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i386.md for an explanation of the expression this outputs. */
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#undef ASM_OUTPUT_ADDR_DIFF_ELT
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#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
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fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE)
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/* Indicate that jump tables go in the text section. This is
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necessary when compiling PIC code. */
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#define JUMP_TABLES_IN_TEXT_SECTION
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/* Don't default to pcc-struct-return, because gcc is the only compiler, and
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we want to retain compatibility with older gcc versions. */
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#define DEFAULT_PCC_STRUCT_RETURN 0
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1996-09-18 06:54:11 +00:00
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/* Tell final.c that we don't need a label passed to mcount. */
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#define NO_PROFILE_DATA
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/* Redefine this to not pass an unused label in %edx. */
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1996-09-18 05:35:50 +00:00
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#undef FUNCTION_PROFILER
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#define FUNCTION_PROFILER(FILE, LABELNO) \
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{ \
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if (flag_pic) \
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1996-09-18 06:54:11 +00:00
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fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n"); \
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1996-09-18 05:35:50 +00:00
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else \
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1996-09-18 06:54:11 +00:00
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fprintf (FILE, "\tcall mcount\n"); \
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}
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#define FUNCTION_PROFILER_EPILOGUE(FILE) \
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{ \
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if (TARGET_PROFILER_EPILOGUE) \
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1996-09-18 05:35:50 +00:00
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{ \
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1996-09-18 06:54:11 +00:00
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if (flag_pic) \
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fprintf (FILE, "\tcall *mexitcount@GOT(%%ebx)\n"); \
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else \
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fprintf (FILE, "\tcall mexitcount\n"); \
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1996-09-18 05:35:50 +00:00
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} \
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}
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1996-09-18 06:54:11 +00:00
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1996-09-18 05:35:50 +00:00
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/*
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* Some imports from svr4.h in support of shared libraries.
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* Currently, we need the DECLARE_OBJECT_SIZE stuff.
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*/
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1996-09-18 06:54:11 +00:00
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#define HANDLE_SYSV_PRAGMA
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1996-09-18 05:35:50 +00:00
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/* Define the strings used for the special svr4 .type and .size directives.
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These strings generally do not vary from one system running svr4 to
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another, but if a given system (e.g. m88k running svr) needs to use
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different pseudo-op names for these, they may be overridden in the
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file which includes this one. */
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#define TYPE_ASM_OP ".type"
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#define SIZE_ASM_OP ".size"
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1996-09-18 06:54:11 +00:00
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#define SET_ASM_OP ".set"
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/* This is how we tell the assembler that a symbol is weak. */
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#if 0 /* not ready for this yet - work in progress.
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* We should probably update gas in the FreeBSD source to something
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* more recent, so that this is recognised. Our LD handles it already.
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*/
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#define ASM_WEAKEN_LABEL(FILE,NAME) \
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do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
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fputc ('\n', FILE); } while (0)
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#endif
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1996-09-18 05:35:50 +00:00
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/* The following macro defines the format used to output the second
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operand of the .type assembler directive. Different svr4 assemblers
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expect various different forms for this operand. The one given here
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is just a default. You may need to override it in your machine-
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specific tm.h file (depending upon the particulars of your assembler). */
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#define TYPE_OPERAND_FMT "@%s"
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/* Write the extra assembler code needed to declare a function's result.
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Most svr4 assemblers don't require any special declaration of the
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result value, but there are exceptions. */
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#ifndef ASM_DECLARE_RESULT
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#define ASM_DECLARE_RESULT(FILE, RESULT)
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#endif
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/* These macros generate the special .type and .size directives which
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are used to set the corresponding fields of the linker symbol table
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entries in an ELF object file under SVR4. These macros also output
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the starting labels for the relevant functions/objects. */
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/* Write the extra assembler code needed to declare a function properly.
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Some svr4 assemblers need to also have something extra said about the
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function's return value. We allow for that here. */
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#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
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do { \
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fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
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assemble_name (FILE, NAME); \
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putc (',', FILE); \
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fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
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putc ('\n', FILE); \
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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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/* Write the extra assembler code needed to declare an object properly. */
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#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
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do { \
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fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
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assemble_name (FILE, NAME); \
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putc (',', FILE); \
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fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
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putc ('\n', FILE); \
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size_directive_output = 0; \
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if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
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{ \
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size_directive_output = 1; \
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fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
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} \
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ASM_OUTPUT_LABEL(FILE, NAME); \
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} while (0)
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/* Output the size directive for a decl in rest_of_decl_compilation
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in the case where we did not do so before the initializer.
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Once we find the error_mark_node, we know that the value of
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size_directive_output was set
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by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
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#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
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do { \
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char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
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if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
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&& ! AT_END && TOP_LEVEL \
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&& DECL_INITIAL (DECL) == error_mark_node \
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&& !size_directive_output) \
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{ \
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fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
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assemble_name (FILE, name); \
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fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL)));\
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} \
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} while (0)
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/* This is how to declare the size of a function. */
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#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
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do { \
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if (!flag_inhibit_size_directive) \
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{ \
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char label[256]; \
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static int labelno; \
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labelno++; \
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ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
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ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
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fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
|
|
|
|
|
assemble_name (FILE, (FNAME)); \
|
|
|
|
|
fprintf (FILE, ","); \
|
|
|
|
|
assemble_name (FILE, label); \
|
|
|
|
|
fprintf (FILE, "-"); \
|
|
|
|
|
assemble_name (FILE, (FNAME)); \
|
|
|
|
|
putc ('\n', FILE); \
|
|
|
|
|
} \
|
|
|
|
|
} while (0)
|