gcc/config/mips/netbsd.h - gcc - Git at Google

 /* Definitions for DECstation running BSD as target machine for GNU compiler.
    Copyright (C) 1993, 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.

 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.  */

 #define DECSTATION

 /* Look for the include files in the system-defined places.  */

 #ifndef CROSS_COMPILE
 #undef GPLUSPLUS_INCLUDE_DIR
 #define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++"

 #undef GCC_INCLUDE_DIR
 #define GCC_INCLUDE_DIR "/usr/include"

 #undef INCLUDE_DEFAULTS
 #define INCLUDE_DEFAULTS			\
   {						\
     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },	\
     { GCC_INCLUDE_DIR, "GCC", 0, 0 },		\
     { 0, 0, 0, 0 }				\
   }

 /* Under NetBSD, the normal location of the various *crt*.o files is the
    /usr/lib directory.  */

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

 /* Provide a LINK_SPEC appropriate for NetBSD.  Here we provide support
    for the special GCC options -static, -assert, and -nostdlib.  */

 #undef LINK_SPEC
 #define LINK_SPEC \
   "%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
    %{!nostartfiles:%{!r*:%{!e*:-e __start}}} -dc -dp %{static:-Bstatic} %{assert*}"

 /* Implicit library calls should use memcpy, not bcopy, etc.  */

 #define TARGET_MEM_FUNCTIONS

 /* Define mips-specific netbsd predefines... */
 #ifndef CPP_PREDEFINES
 #define CPP_PREDEFINES "-D__ANSI_COMPAT \
 -DMIPSEL -DR3000 -DSYSTYPE_BSD -D_SYSTYPE_BSD -D__NetBSD__ -Dmips \
 -D__NO_LEADING_UNDERSCORES__ -D__GP_SUPPORT__ \
 -Dunix -D_R3000 \
 -Asystem=unix -Asystem=NetBSD -Amachine=mips"
 #endif

 #ifndef SUBTARGET_CPP_SPEC
 #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
 #endif

 #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
 #define STARTFILE_SPEC ""

 #ifndef MACHINE_TYPE
 #define MACHINE_TYPE "NetBSD/pmax"
 #endif

 #define TARGET_DEFAULT MASK_GAS
 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG

 #include "mips/mips.h"

 /*
  * 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.  */

 #undef TYPE_ASM_OP
 #undef SIZE_ASM_OP
 #undef WEAK_ASM_OP
 #define TYPE_ASM_OP	"\t.type\t"
 #define SIZE_ASM_OP	"\t.size\t"
 #define WEAK_ASM_OP	"\t.weak\t"

 /* 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).  */

 #undef TYPE_OPERAND_FMT
 #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.  */

 #undef ASM_DECLARE_FUNCTION_NAME
 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)			\
   do {									\
     fprintf (FILE, "%s", 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));			\
   } while (0)

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

 #undef ASM_DECLARE_OBJECT_NAME
 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)			\
   do {									\
     fprintf (FILE, "%s", 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, "%s", 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.  */

 #undef ASM_FINISH_DECLARE_OBJECT
 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)	 \
 do {									 \
      const 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)					 \
        {								 \
 	 size_directive_output = 1;					 \
 	 fprintf (FILE, "%s", 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.  */

 #undef ASM_DECLARE_FUNCTION_SIZE
 #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, "%s", SIZE_ASM_OP);				\
 	assemble_name (FILE, (FNAME));					\
         fprintf (FILE, ",");						\
 	assemble_name (FILE, label);					\
         fprintf (FILE, "-");						\
 	assemble_name (FILE, (FNAME));					\
 	putc ('\n', FILE);						\
       }									\
   } while (0)

 /*
  A C statement to output something to the assembler file to switch to section
  NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
  NULL_TREE.  Some target formats do not support arbitrary sections.  Do not
  define this macro in such cases.
 */
 #define ASM_OUTPUT_SECTION_NAME(F, DECL, NAME, RELOC)                        \
 do {                                                                         \
   extern FILE *asm_out_text_file;                                            \
   if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL)                           \
     fprintf (asm_out_text_file, "\t.section %s,\"ax\",@progbits\n", (NAME)); \
   else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC))                    \
     fprintf (F, "\t.section %s,\"a\",@progbits\n", (NAME));                  \
   else if (! strcmp (NAME, ".bss"))                         	             \
     fprintf (F, "\t.section %s,\"aw\",@nobits\n", (NAME));      	     \
   else                                                                       \
     fprintf (F, "\t.section %s,\"aw\",@progbits\n", (NAME));                 \
 } while (0)

 /* Since gas and gld are standard on NetBSD, we don't need these */
 #undef ASM_FINAL_SPEC
 #undef STARTFILE_SPEC
	/* Definitions for DECstation running BSD as target machine for GNU compiler.
	Copyright (C) 1993, 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.

	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. */

	#define DECSTATION

	/* Look for the include files in the system-defined places. */

	#ifndef CROSS_COMPILE
	#undef GPLUSPLUS_INCLUDE_DIR
	#define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++"

	#undef GCC_INCLUDE_DIR
	#define GCC_INCLUDE_DIR "/usr/include"

	#undef INCLUDE_DEFAULTS
	#define INCLUDE_DEFAULTS \
	{ \
	{ GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 }, \
	{ GCC_INCLUDE_DIR, "GCC", 0, 0 }, \
	{ 0, 0, 0, 0 } \
	}

	/* Under NetBSD, the normal location of the various crt.o files is the
	/usr/lib directory. */

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

	/* Provide a LINK_SPEC appropriate for NetBSD. Here we provide support
	for the special GCC options -static, -assert, and -nostdlib. */

	#undef LINK_SPEC
	#define LINK_SPEC \
	"%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
	%{!nostartfiles:%{!r:%{!e:-e __start}}} -dc -dp %{static:-Bstatic} %{assert*}"

	/* Implicit library calls should use memcpy, not bcopy, etc. */

	#define TARGET_MEM_FUNCTIONS

	/* Define mips-specific netbsd predefines... */
	#ifndef CPP_PREDEFINES
	#define CPP_PREDEFINES "-D__ANSI_COMPAT \
	-DMIPSEL -DR3000 -DSYSTYPE_BSD -D_SYSTYPE_BSD -D__NetBSD__ -Dmips \
	-D__NO_LEADING_UNDERSCORES__ -D__GP_SUPPORT__ \
	-Dunix -D_R3000 \
	-Asystem=unix -Asystem=NetBSD -Amachine=mips"
	#endif

	#ifndef SUBTARGET_CPP_SPEC
	#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
	#endif

	#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
	#define STARTFILE_SPEC ""

	#ifndef MACHINE_TYPE
	#define MACHINE_TYPE "NetBSD/pmax"
	#endif

	#define TARGET_DEFAULT MASK_GAS
	#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG

	#include "mips/mips.h"

	/*
	* 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. */

	#undef TYPE_ASM_OP
	#undef SIZE_ASM_OP
	#undef WEAK_ASM_OP
	#define TYPE_ASM_OP "\t.type\t"
	#define SIZE_ASM_OP "\t.size\t"
	#define WEAK_ASM_OP "\t.weak\t"

	/* 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). */

	#undef TYPE_OPERAND_FMT
	#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. */

	#undef ASM_DECLARE_FUNCTION_NAME
	#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
	do { \
	fprintf (FILE, "%s", 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)); \
	} while (0)

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

	#undef ASM_DECLARE_OBJECT_NAME
	#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
	do { \
	fprintf (FILE, "%s", 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, "%s", 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. */

	#undef ASM_FINISH_DECLARE_OBJECT
	#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
	do { \
	const 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) \
	{ \
	size_directive_output = 1; \
	fprintf (FILE, "%s", 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. */

	#undef ASM_DECLARE_FUNCTION_SIZE
	#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, "%s", SIZE_ASM_OP); \
	assemble_name (FILE, (FNAME)); \
	fprintf (FILE, ","); \
	assemble_name (FILE, label); \
	fprintf (FILE, "-"); \
	assemble_name (FILE, (FNAME)); \
	putc ('\n', FILE); \
	} \
	} while (0)

	/*
	A C statement to output something to the assembler file to switch to section
	NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
	NULL_TREE. Some target formats do not support arbitrary sections. Do not
	define this macro in such cases.
	*/
	#define ASM_OUTPUT_SECTION_NAME(F, DECL, NAME, RELOC) \
	do { \
	extern FILE *asm_out_text_file; \
	if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \
	fprintf (asm_out_text_file, "\t.section %s,\"ax\",@progbits\n", (NAME)); \
	else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \
	fprintf (F, "\t.section %s,\"a\",@progbits\n", (NAME)); \
	else if (! strcmp (NAME, ".bss")) \
	fprintf (F, "\t.section %s,\"aw\",@nobits\n", (NAME)); \
	else \
	fprintf (F, "\t.section %s,\"aw\",@progbits\n", (NAME)); \
	} while (0)

	/* Since gas and gld are standard on NetBSD, we don't need these */
	#undef ASM_FINAL_SPEC
	#undef STARTFILE_SPEC