gcc/config/i386/freebsd.h - gcc - Git at Google

 /* Definitions of target machine for GNU compiler for Intel 80386
    running FreeBSD.
    Copyright (C) 1988, 1992, 1994, 1996 Free Software Foundation, Inc.
    Contributed by Poul-Henning Kamp <phk@login.dkuug.dk>

 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.  */

 /* This goes away when the math-emulator is fixed */
 #define TARGET_CPU_DEFAULT 0400		/* TARGET_NO_FANCY_MATH_387 */

 /* This is tested by i386gas.h.  */
 #define YES_UNDERSCORES

 /* Don't assume anything about the header files. */
 #define NO_IMPLICIT_EXTERN_C

 #include "i386/gstabs.h"

 /* Get perform_* macros to build libgcc.a.  */
 #include "i386/perform.h"

 #undef CPP_PREDEFINES
 #define CPP_PREDEFINES "-Dunix -Di386 -D__FreeBSD__ -D__386BSD__ -Asystem(unix) -Asystem(FreeBSD) -Acpu(i386) -Amachine(i386)"

 /* Like the default, except no -lg.  */
 #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"

 #undef SIZE_TYPE
 #define SIZE_TYPE "unsigned int"

 #undef PTRDIFF_TYPE
 #define PTRDIFF_TYPE "int"

 #undef WCHAR_TYPE
 #define WCHAR_TYPE "short unsigned int"

 #define WCHAR_UNSIGNED 1

 #undef WCHAR_TYPE_SIZE
 #define WCHAR_TYPE_SIZE 16

 #define HAVE_ATEXIT

 #undef ASM_APP_ON
 #define ASM_APP_ON "#APP\n"

 #undef ASM_APP_OFF
 #define ASM_APP_OFF "#NO_APP\n"

 /* The following macros are stolen from i386v4.h */
 /* These have to be defined to get PIC code correct */

 /* This is how to output an element of a case-vector that is relative.
    This is only used for PIC code.  See comments by the `casesi' insn in
    i386.md for an explanation of the expression this outputs. */

 #undef ASM_OUTPUT_ADDR_DIFF_ELT
 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
   fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE)

 /* Indicate that jump tables go in the text section.  This is
    necessary when compiling PIC code.  */

 #define JUMP_TABLES_IN_TEXT_SECTION

 /* Don't default to pcc-struct-return, because gcc is the only compiler, and
    we want to retain compatibility with older gcc versions.  */
 #define DEFAULT_PCC_STRUCT_RETURN 0

 /* Profiling routines, partially copied from i386/osfrose.h.  */

 /* Redefine this to use %eax instead of %edx.  */
 #undef FUNCTION_PROFILER
 #define FUNCTION_PROFILER(FILE, LABELNO)  \
 {									\
   if (flag_pic)								\
     {									\
       fprintf (FILE, "\tleal %sP%d@GOTOFF(%%ebx),%%eax\n",		\
 	       LPREFIX, (LABELNO));					\
       fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n");			\
     }									\
   else									\
     {									\
       fprintf (FILE, "\tmovl $%sP%d,%%eax\n", LPREFIX, (LABELNO));	\
       fprintf (FILE, "\tcall mcount\n");				\
     }									\
 }

 /*
  * Some imports from svr4.h in support of shared libraries.
  * Currently, we need the DECLARE_OBJECT_SIZE stuff.
  */

 /* Define the strings used for the special svr4 .type and .size directives.
    These strings generally do not vary from one system running svr4 to
    another, but if a given system (e.g. m88k running svr) needs to use
    different pseudo-op names for these, they may be overridden in the
    file which includes this one.  */

 #define TYPE_ASM_OP	".type"
 #define SIZE_ASM_OP	".size"

 /* The following macro defines the format used to output the second
    operand of the .type assembler directive.  Different svr4 assemblers
    expect various different forms for this operand.  The one given here
    is just a default.  You may need to override it in your machine-
    specific tm.h file (depending upon the particulars of your assembler).  */

 #define TYPE_OPERAND_FMT	"@%s"

 /* Write the extra assembler code needed to declare a function's result.
    Most svr4 assemblers don't require any special declaration of the
    result value, but there are exceptions.  */

 #ifndef ASM_DECLARE_RESULT
 #define ASM_DECLARE_RESULT(FILE, RESULT)
 #endif

 /* These macros generate the special .type and .size directives which
    are used to set the corresponding fields of the linker symbol table
    entries in an ELF object file under SVR4.  These macros also output
    the starting labels for the relevant functions/objects.  */

 /* Write the extra assembler code needed to declare a function properly.
    Some svr4 assemblers need to also have something extra said about the
    function's return value.  We allow for that here.  */

 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)			\
   do {									\
     fprintf (FILE, "\t%s\t ", TYPE_ASM_OP);				\
     assemble_name (FILE, NAME);						\
     putc (',', FILE);							\
     fprintf (FILE, TYPE_OPERAND_FMT, "function");			\
     putc ('\n', FILE);							\
     ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));			\
     ASM_OUTPUT_LABEL(FILE, NAME);					\
   } while (0)

 /* Write the extra assembler code needed to declare an object properly.  */

 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)			\
   do {									\
     fprintf (FILE, "\t%s\t ", TYPE_ASM_OP);				\
     assemble_name (FILE, NAME);						\
     putc (',', FILE);							\
     fprintf (FILE, TYPE_OPERAND_FMT, "object");				\
     putc ('\n', FILE);							\
     size_directive_output = 0;						\
     if (!flag_inhibit_size_directive && DECL_SIZE (DECL))		\
       {									\
         size_directive_output = 1;					\
 	fprintf (FILE, "\t%s\t ", SIZE_ASM_OP);				\
 	assemble_name (FILE, NAME);					\
 	fprintf (FILE, ",%d\n",  int_size_in_bytes (TREE_TYPE (DECL)));	\
       }									\
     ASM_OUTPUT_LABEL(FILE, NAME);					\
   } while (0)

 /* Output the size directive for a decl in rest_of_decl_compilation
    in the case where we did not do so before the initializer.
    Once we find the error_mark_node, we know that the value of
    size_directive_output was set
    by ASM_DECLARE_OBJECT_NAME when it was run for the same decl.  */

 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)        \
 do {                                                                    \
      char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0);                  \
      if (!flag_inhibit_size_directive && DECL_SIZE (DECL)	        \
          && ! AT_END && TOP_LEVEL                                       \
          && DECL_INITIAL (DECL) == error_mark_node                      \
          && !size_directive_output)                                     \
        {                                                                \
          fprintf (FILE, "\t%s\t ", SIZE_ASM_OP);                        \
 	 assemble_name (FILE, name);                                    \
 	 fprintf (FILE, ",%d\n",  int_size_in_bytes (TREE_TYPE (DECL)));\
 	}								\
    } while (0)


 /* This is how to declare the size of a function.  */

 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)			\
   do {									\
     if (!flag_inhibit_size_directive)					\
       {									\
         char label[256];						\
 	static int labelno;						\
 	labelno++;							\
 	ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno);		\
 	ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno);		\
 	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)

 #define ASM_SPEC   " %| %{fpic:-k} %{fPIC:-k}"
 #define LINK_SPEC \
   "%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} %{assert*}"

 /* This is defined when gcc is compiled in the BSD-directory-tree, and must
  * make up for the gap to all the stuff done in the GNU-makefiles.
  */

 #ifdef FREEBSD_NATIVE

 #define INCLUDE_DEFAULTS { \
 	{ "/usr/include", 0 }, \
 	{ "/usr/include/g++", 1 }, \
 	{ 0, 0} \
 	}

 #undef MD_EXEC_PREFIX
 #define MD_EXEC_PREFIX "/usr/libexec/"

 #undef STANDARD_STARTFILE_PREFIX
 #define STANDARD_STARTFILE_PREFIX "/usr/lib"

 #if 0 /* This is very wrong!!! */
 #define DEFAULT_TARGET_MACHINE "i386-unknown-freebsd_1.0"
 #define GPLUSPLUS_INCLUDE_DIR "/usr/local/lib/gcc-lib/i386-unknown-freebsd_1.0/2.5.8/include"
 #define TOOL_INCLUDE_DIR "/usr/local/i386-unknown-freebsd_1.0/include"
 #define GCC_INCLUDE_DIR "/usr/local/lib/gcc-lib/i386-unknown-freebsd_1.0/2.5.8/include"
 #endif

 #endif /* FREEBSD_NATIVE */
	/* Definitions of target machine for GNU compiler for Intel 80386
	running FreeBSD.
	Copyright (C) 1988, 1992, 1994, 1996 Free Software Foundation, Inc.
	Contributed by Poul-Henning Kamp <phk@login.dkuug.dk>

	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. */

	/* This goes away when the math-emulator is fixed */
	#define TARGET_CPU_DEFAULT 0400 /* TARGET_NO_FANCY_MATH_387 */

	/* This is tested by i386gas.h. */
	#define YES_UNDERSCORES

	/* Don't assume anything about the header files. */
	#define NO_IMPLICIT_EXTERN_C

	#include "i386/gstabs.h"

	/* Get perform_* macros to build libgcc.a. */
	#include "i386/perform.h"

	#undef CPP_PREDEFINES
	#define CPP_PREDEFINES "-Dunix -Di386 -D__FreeBSD__ -D__386BSD__ -Asystem(unix) -Asystem(FreeBSD) -Acpu(i386) -Amachine(i386)"

	/* Like the default, except no -lg. */
	#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"

	#undef SIZE_TYPE
	#define SIZE_TYPE "unsigned int"

	#undef PTRDIFF_TYPE
	#define PTRDIFF_TYPE "int"

	#undef WCHAR_TYPE
	#define WCHAR_TYPE "short unsigned int"

	#define WCHAR_UNSIGNED 1

	#undef WCHAR_TYPE_SIZE
	#define WCHAR_TYPE_SIZE 16

	#define HAVE_ATEXIT

	#undef ASM_APP_ON
	#define ASM_APP_ON "#APP\n"

	#undef ASM_APP_OFF
	#define ASM_APP_OFF "#NO_APP\n"

	/* The following macros are stolen from i386v4.h */
	/* These have to be defined to get PIC code correct */

	/* This is how to output an element of a case-vector that is relative.
	This is only used for PIC code. See comments by the `casesi' insn in
	i386.md for an explanation of the expression this outputs. */

	#undef ASM_OUTPUT_ADDR_DIFF_ELT
	#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
	fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE)

	/* Indicate that jump tables go in the text section. This is
	necessary when compiling PIC code. */

	#define JUMP_TABLES_IN_TEXT_SECTION

	/* Don't default to pcc-struct-return, because gcc is the only compiler, and
	we want to retain compatibility with older gcc versions. */
	#define DEFAULT_PCC_STRUCT_RETURN 0

	/* Profiling routines, partially copied from i386/osfrose.h. */

	/* Redefine this to use %eax instead of %edx. */
	#undef FUNCTION_PROFILER
	#define FUNCTION_PROFILER(FILE, LABELNO) \
	{ \
	if (flag_pic) \
	{ \
	fprintf (FILE, "\tleal %sP%d@GOTOFF(%%ebx),%%eax\n", \
	LPREFIX, (LABELNO)); \
	fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n"); \
	} \
	else \
	{ \
	fprintf (FILE, "\tmovl $%sP%d,%%eax\n", LPREFIX, (LABELNO)); \
	fprintf (FILE, "\tcall mcount\n"); \
	} \
	}

	/*
	* Some imports from svr4.h in support of shared libraries.
	* Currently, we need the DECLARE_OBJECT_SIZE stuff.
	*/

	/* Define the strings used for the special svr4 .type and .size directives.
	These strings generally do not vary from one system running svr4 to
	another, but if a given system (e.g. m88k running svr) needs to use
	different pseudo-op names for these, they may be overridden in the
	file which includes this one. */

	#define TYPE_ASM_OP ".type"
	#define SIZE_ASM_OP ".size"

	/* The following macro defines the format used to output the second
	operand of the .type assembler directive. Different svr4 assemblers
	expect various different forms for this operand. The one given here
	is just a default. You may need to override it in your machine-
	specific tm.h file (depending upon the particulars of your assembler). */

	#define TYPE_OPERAND_FMT "@%s"

	/* Write the extra assembler code needed to declare a function's result.
	Most svr4 assemblers don't require any special declaration of the
	result value, but there are exceptions. */

	#ifndef ASM_DECLARE_RESULT
	#define ASM_DECLARE_RESULT(FILE, RESULT)
	#endif

	/* These macros generate the special .type and .size directives which
	are used to set the corresponding fields of the linker symbol table
	entries in an ELF object file under SVR4. These macros also output
	the starting labels for the relevant functions/objects. */

	/* Write the extra assembler code needed to declare a function properly.
	Some svr4 assemblers need to also have something extra said about the
	function's return value. We allow for that here. */

	#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
	do { \
	fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
	assemble_name (FILE, NAME); \
	putc (',', FILE); \
	fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
	putc ('\n', FILE); \
	ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
	ASM_OUTPUT_LABEL(FILE, NAME); \
	} while (0)

	/* Write the extra assembler code needed to declare an object properly. */

	#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
	do { \
	fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
	assemble_name (FILE, NAME); \
	putc (',', FILE); \
	fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
	putc ('\n', FILE); \
	size_directive_output = 0; \
	if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
	{ \
	size_directive_output = 1; \
	fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
	assemble_name (FILE, NAME); \
	fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
	} \
	ASM_OUTPUT_LABEL(FILE, NAME); \
	} while (0)

	/* Output the size directive for a decl in rest_of_decl_compilation
	in the case where we did not do so before the initializer.
	Once we find the error_mark_node, we know that the value of
	size_directive_output was set
	by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */

	#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
	do { \
	char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
	if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
	&& ! AT_END && TOP_LEVEL \
	&& DECL_INITIAL (DECL) == error_mark_node \
	&& !size_directive_output) \
	{ \
	fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
	assemble_name (FILE, name); \
	fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL)));\
	} \
	} while (0)


	/* This is how to declare the size of a function. */

	#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
	do { \
	if (!flag_inhibit_size_directive) \
	{ \
	char label[256]; \
	static int labelno; \
	labelno++; \
	ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
	ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
	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)

	#define ASM_SPEC " %\| %{fpic:-k} %{fPIC:-k}"
	#define LINK_SPEC \
	"%{!nostdlib:%{!r:%{!e:-e start}}} -dc -dp %{static:-Bstatic} %{assert*}"

	/* This is defined when gcc is compiled in the BSD-directory-tree, and must
	* make up for the gap to all the stuff done in the GNU-makefiles.
	*/

	#ifdef FREEBSD_NATIVE

	#define INCLUDE_DEFAULTS { \
	{ "/usr/include", 0 }, \
	{ "/usr/include/g++", 1 }, \
	{ 0, 0} \
	}

	#undef MD_EXEC_PREFIX
	#define MD_EXEC_PREFIX "/usr/libexec/"

	#undef STANDARD_STARTFILE_PREFIX
	#define STANDARD_STARTFILE_PREFIX "/usr/lib"

	#if 0 /* This is very wrong!!! */
	#define DEFAULT_TARGET_MACHINE "i386-unknown-freebsd_1.0"
	#define GPLUSPLUS_INCLUDE_DIR "/usr/local/lib/gcc-lib/i386-unknown-freebsd_1.0/2.5.8/include"
	#define TOOL_INCLUDE_DIR "/usr/local/i386-unknown-freebsd_1.0/include"
	#define GCC_INCLUDE_DIR "/usr/local/lib/gcc-lib/i386-unknown-freebsd_1.0/2.5.8/include"
	#endif

	#endif /* FREEBSD_NATIVE */