gcc/config/m88k/dgux.h - gcc - Git at Google

 /* Definitions of target machine for GNU compiler.
    Motorola m88100 running DG/UX.
    Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 2000
    Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@mcc.com)
    Currently maintained by (gcc@dg-rtp.dg.com)

 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.  */

 /* You're not seeing double!  To transition to dwarf debugging, both are
    supported.  The option -msvr4 specifies elf.  With these combinations,
    -g means dwarf.  */
 /* DWARF_DEBUGGING_INFO defined in svr4.h.  */
 #define SDB_DEBUGGING_INFO
 #define PREFERRED_DEBUGGING_TYPE \
   (TARGET_SVR4 ? DWARF_DEBUG : SDB_DEBUG)

 #ifndef NO_BUGS
 #define AS_BUG_IMMEDIATE_LABEL
 /* The DG/UX 4.30 assembler doesn't accept the symbol `fcr63'.  */
 #define AS_BUG_FLDCR
 #endif

 #include "svr4.h"
 #include "m88k/m88k.h"

 /* Augment TARGET_SWITCHES with the MXDB options.  */
 #define MASK_STANDARD		0x40000000 /* Retain standard information */
 #define MASK_NOLEGEND		0x20000000 /* Discard legend information */
 #define MASK_EXTERNAL_LEGEND	0x10000000 /* Make external legends */

 #define TARGET_STANDARD		  (target_flags & MASK_STANDARD)
 #define TARGET_NOLEGEND		  (target_flags & MASK_NOLEGEND)
 #define TARGET_EXTERNAL_LEGEND	  (target_flags & MASK_EXTERNAL_LEGEND)

 #undef  SUBTARGET_SWITCHES
 #define SUBTARGET_SWITCHES \
     { "standard",			 MASK_STANDARD }, \
     { "legend",				-MASK_NOLEGEND }, \
     { "no-legend",			 MASK_NOLEGEND }, \
     { "external-legend",		 MASK_EXTERNAL_LEGEND }, \
     /* the following is used only in the *_SPEC's */ \
     { "keep-coff",			 0 },

 /* Default switches */
 #undef	TARGET_DEFAULT
 #define TARGET_DEFAULT	(MASK_CHECK_ZERO_DIV	 | \
 			 MASK_OCS_DEBUG_INFO	 | \
 			 MASK_OCS_FRAME_POSITION | \
 			 MASK_STANDARD		 | \
 			 MASK_SVR4)
 #undef	CPU_DEFAULT
 #define CPU_DEFAULT MASK_88000

 /* Macros to be automatically defined.  __svr4__ is our extension.
    __CLASSIFY_TYPE__ is used in the <varargs.h> and <stdarg.h> header
    files with DG/UX revision 5.40 and later.  This allows GNU CC to
    operate without installing the header files.  */

 #undef	CPP_PREDEFINES
 #define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -DDGUX -D__CLASSIFY_TYPE__=2\
    -D__svr4__ -Asystem=unix -Acpu=m88k -Amachine=m88k"

 /* If -m88100 is in effect, add -Dm88100; similarly for -m88110.
    Here, the CPU_DEFAULT is assumed to be -m88000.  If not -ansi,
    -traditional, or restricting include files to one specific source
    target, specify full DG/UX features.  */
 #undef	CPP_SPEC
 #define	CPP_SPEC "%(cpp_cpu) %{msvr3:-D_M88KBCS_TARGET} %{!msvr3:-D_DGUX_TARGET}"

 /* Assembler support (-V, silicon filter, legends for mxdb).  */
 #undef	ASM_SPEC
 #define ASM_SPEC "%{pipe:%{!.s: - }\
 		   %{!msvr3:%{!m88110:-KV3 }%{m88110:-KV04.00 }}}\
 		  %(asm_cpu)"

 /* Override svr4.h.  */
 #undef	ASM_FINAL_SPEC
 #undef	STARTFILE_SPEC

 /* Linker and library spec's.
    -msvr4 is the default if -msvr3 is not specified.
    -static, -shared, -symbolic, -h* and -z* access AT&T V.4 link options.
    -svr4 instructs gcc to place /usr/lib/values-X[cat].o on the link line.
    -msvr3 indicates linking done in a COFF environment and the link
    script is added to the link line.  In all environments, the first
    and last objects are crtbegin.o (or bcscrtbegin.o) and crtend.o.
    When the -G link option is used (-shared and -symbolic) a final
    link is not being done.  */
 #undef  ENDFILE_SPEC
 #define ENDFILE_SPEC "crtend.o%s"
 #undef	LIB_SPEC
 #define LIB_SPEC "%{!msvr3:%{!shared:-lstaticdgc}} %{!shared:%{!symbolic:-lc}}"
 #undef	LINK_SPEC
 #define LINK_SPEC "%{z*} %{h*} %{v:-V} \
 		   %{static:-dn -Bstatic} \
 		   %{shared:-G -dy} \
 		   %{symbolic:-Bsymbolic -G -dy} \
 		   %{pg:-L/usr/lib/libp}%{p:-L/usr/lib/libp}"
 #undef	STARTFILE_SPEC
 #define STARTFILE_SPEC "%(startfile_default)"


 /* This macro defines names of additional specifications to put in the specs
    that can be used in various specifications like CC1_SPEC.  Its definition
    is an initializer with a subgrouping for each command option.

    Each subgrouping contains a string constant, that defines the
    specification name, and a string constant that used by the GNU CC driver
    program.

    Do not define this macro if it does not need to do anything.  */

 #define EXTRA_SPECS                                     \
   { "cpp_cpu",          CPP_CPU_SPEC },                 \
   { "asm_cpu",          ASM_CPU_SPEC },                 \
   { "startfile_default", STARTFILE_DEFAULT_SPEC },  \
   { "startfile_crtbegin", STARTFILE_CRTBEGIN_SPEC }

 /* Keep this left justified, no white space is allowed between
    the arguments to the -Wc option */
 #define ASM_CPU_SPEC "\
 		  %{v:-V}\
 		  %{g:\
 %{mno-legend:-Wc,off}\
 %{!mno-legend:-Wc,-fix-bb,-s\"%i\"\
 %{traditional:,-lc}\
 %{!traditional:,-lansi-c}\
 %{mstandard:,-keep-std}\
 %{mexternal-legend:,-external}\
 %{mocs-frame-position:,-ocs}}}"

 #define CPP_CPU_SPEC "\
                   %{!m88000:%{!m88100:%{m88110:-D__m88110__}}} \
 		  %{!m88000:%{!m88110:%{m88100:-D__m88100__}}} \
 		  %{!ansi:%{!traditional:-D__OPEN_NAMESPACE__}}"

 #define STARTFILE_DEFAULT_SPEC "\
                         %{!shared:%{!symbolic:%{pg:gcrt0.o%s} \
 			 %{!pg:%{p:/lib/mcrt0.o}%{!p:/lib/crt0.o}} \
 			  %(startfile_crtbegin) \
 			 %{svr4:%{ansi:/lib/values-Xc.o} \
 			  %{!ansi:%{traditional:/lib/values-Xt.o} \
 			   %{!traditional:/usr/lib/values-Xa.o}}}}}"

 #define STARTFILE_CRTBEGIN_SPEC "\
 			 %{msvr3:m88kdgux.ld%s bcscrtbegin.o%s} \
 			 %{!msvr3:crtbegin.o%s}"

 #undef	GPLUSPLUS_INCLUDE_DIR
 #define GPLUSPLUS_INCLUDE_DIR "/usr/opt/g++/lib/g++-include"

 /* Fast DG/UX version of profiler that does not require lots of
    registers to be stored.  */
 #undef	FUNCTION_PROFILER
 #define FUNCTION_PROFILER(FILE, LABELNO) \
   output_function_profiler (FILE, LABELNO, "gcc.mcount", 0)

 /* Output the legend info for mxdb when debugging except if standard
    debugging information only is explicitly requested.  */
 #undef  ASM_FIRST_LINE
 #define ASM_FIRST_LINE(FILE)						\
   do {									\
     if (TARGET_SVR4)							\
       {									\
 	if (TARGET_88110)						\
 	  fprintf (FILE, "%s\"%s\"\n", VERSION_ASM_OP, "04.00");	\
 	else								\
 	  fprintf (FILE, "%s\"%s\"\n", VERSION_ASM_OP, "03.00");	\
       }									\
     if (write_symbols != NO_DEBUG && !TARGET_NOLEGEND)			\
       {									\
 	fprintf (FILE, ";legend_info -fix-bb -h\"gcc-%s\" -s\"%s\"",	\
 		 version_string, main_input_filename);			\
 	fputs (flag_traditional ? " -lc" : " -lansi-c", FILE);		\
 	if (TARGET_STANDARD)						\
 	  fputs (" -keep-std", FILE);					\
 	if (TARGET_EXTERNAL_LEGEND)					\
 	  fputs (" -external", FILE);					\
 	if (TARGET_OCS_FRAME_POSITION)					\
 	  fputs (" -ocs", FILE);					\
 	fputc ('\n', FILE);						\
       }									\
   } while (0)

 /* Override svr4.h.  */
 #undef PTRDIFF_TYPE
 #undef WCHAR_TYPE
 #undef WCHAR_TYPE_SIZE

 /* Override svr4.h and m88k.h except when compiling crtstuff.c.  These must
    be constant strings when compiling crtstuff.c.  Otherwise, respect the
    -mversion-STRING option used.  */
 #undef INIT_SECTION_PREAMBLE
 #undef INIT_SECTION_ASM_OP
 #undef FINI_SECTION_ASM_OP
 #undef CTORS_SECTION_ASM_OP
 #undef DTORS_SECTION_ASM_OP

 #if defined (CRT_BEGIN) || defined (CRT_END) || defined (L__main)
 /* routines to invoke global constructors and destructors are always COFF
    to enable linking mixed COFF and ELF objects */
 #define FINI_SECTION_ASM_OP ("\tsection  .fini,\"x\"")
 #ifndef BCS
 #define INIT_SECTION_PREAMBLE asm ("\taddu\tr31,r31,0x20")
 #endif
 #undef	INIT_SECTION_ASM_OP
 #define INIT_SECTION_ASM_OP ("\tsection\t .init,\"x\"")
 #undef	CTORS_SECTION_ASM_OP
 #define CTORS_SECTION_ASM_OP ("\tsection\t .ctors,\"d\"")
 #undef	DTORS_SECTION_ASM_OP
 #define DTORS_SECTION_ASM_OP ("\tsection\t .dtors,\"d\"")
 #undef OBJECT_FORMAT_ELF
 #else
 #undef        INIT_SECTION_ASM_OP
 #define INIT_SECTION_ASM_OP (TARGET_SVR4                      \
                            ? "\tsection\t .init,\"xa\""         \
                            : "\tsection\t .init,\"x\"")
 #undef        CTORS_SECTION_ASM_OP
 #define CTORS_SECTION_ASM_OP (TARGET_SVR4                     \
                             ? "\tsection\t .ctors,\"aw\""       \
                             : "\tsection\t .ctors,\"d\"")
 #undef        DTORS_SECTION_ASM_OP
 #define DTORS_SECTION_ASM_OP (TARGET_SVR4                     \
                             ? "\tsection\t .dtors,\"aw\""       \
                             : "\tsection\t .dtors,\"d\"")
 #endif /* crtstuff.c */

 /* The lists of global object constructors and global destructors are always
    placed in the .ctors/.dtors sections.  This requires the use of a link
    script if the COFF linker is used, but otherwise COFF and ELF objects
    can be intermixed.  A COFF object will pad the section to 16 bytes with
    zeros; and ELF object will not contain padding.  We deal with this by
    putting a -1 marker at the begin and end of the list and ignoring zero
    entries.  */

 /* Mark the end of the .ctors/.dtors sections with a -1.  */

 #define CTOR_LIST_BEGIN			\
 asm (CTORS_SECTION_ASM_OP);		\
 func_ptr __CTOR_LIST__[1] = { (func_ptr) (-1) }

 #define CTOR_LIST_END			\
 asm (CTORS_SECTION_ASM_OP);		\
 func_ptr __CTOR_END__[1] = { (func_ptr) (-1) }

 #define DTOR_LIST_BEGIN			\
 asm (DTORS_SECTION_ASM_OP);		\
 func_ptr __DTOR_LIST__[1] = { (func_ptr) (-1) }

 #define DTOR_LIST_END			\
 asm (DTORS_SECTION_ASM_OP);		\
 func_ptr __DTOR_END__[1] = { (func_ptr) (-1) }

 /* Walk the list ignoring NULL entries till we hit the terminating -1.  */
 #define DO_GLOBAL_CTORS_BODY				\
   do {							\
     int i;						\
     for (i=1;(int)(__CTOR_LIST__[i]) != -1; i++)	\
       if (((int *)__CTOR_LIST__)[i] != 0)		\
 	__CTOR_LIST__[i] ();				\
   } while (0)

 /* Walk the list looking for the terminating -1 that marks the end.
    Go backward and ignore any NULL entries.  */
 #define DO_GLOBAL_DTORS_BODY				\
   do {							\
     int i;						\
     for (i=1;(int)(__DTOR_LIST__[i]) != -1; i++);	\
     for (i-=1;(int)(__DTOR_LIST__[i]) != -1; i--)	\
       if (((int *)__DTOR_LIST__)[i] != 0)		\
 	__DTOR_LIST__[i] ();				\
   } while (0)

 /* The maximum alignment which the object file format can support.
    page alignment would seem to be enough */
 #undef MAX_OFILE_ALIGNMENT
 #define MAX_OFILE_ALIGNMENT 0x1000

 /* Must use data section for relocatable constants when pic.  */
 #undef SELECT_RTX_SECTION
 #define SELECT_RTX_SECTION(MODE,RTX)            \
 {                                               \
   if (flag_pic && symbolic_operand (RTX))       \
     data_section ();                            \
   else                                          \
     const_section ();                           \
 }
	/* Definitions of target machine for GNU compiler.
	Motorola m88100 running DG/UX.
	Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 2000
	Free Software Foundation, Inc.
	Contributed by Michael Tiemann (tiemann@mcc.com)
	Currently maintained by (gcc@dg-rtp.dg.com)

	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. */

	/* You're not seeing double! To transition to dwarf debugging, both are
	supported. The option -msvr4 specifies elf. With these combinations,
	-g means dwarf. */
	/* DWARF_DEBUGGING_INFO defined in svr4.h. */
	#define SDB_DEBUGGING_INFO
	#define PREFERRED_DEBUGGING_TYPE \
	(TARGET_SVR4 ? DWARF_DEBUG : SDB_DEBUG)

	#ifndef NO_BUGS
	#define AS_BUG_IMMEDIATE_LABEL
	/* The DG/UX 4.30 assembler doesn't accept the symbol `fcr63'. */
	#define AS_BUG_FLDCR
	#endif

	#include "svr4.h"
	#include "m88k/m88k.h"

	/* Augment TARGET_SWITCHES with the MXDB options. */
	#define MASK_STANDARD 0x40000000 /* Retain standard information */
	#define MASK_NOLEGEND 0x20000000 /* Discard legend information */
	#define MASK_EXTERNAL_LEGEND 0x10000000 /* Make external legends */

	#define TARGET_STANDARD (target_flags & MASK_STANDARD)
	#define TARGET_NOLEGEND (target_flags & MASK_NOLEGEND)
	#define TARGET_EXTERNAL_LEGEND (target_flags & MASK_EXTERNAL_LEGEND)

	#undef SUBTARGET_SWITCHES
	#define SUBTARGET_SWITCHES \
	{ "standard", MASK_STANDARD }, \
	{ "legend", -MASK_NOLEGEND }, \
	{ "no-legend", MASK_NOLEGEND }, \
	{ "external-legend", MASK_EXTERNAL_LEGEND }, \
	/* the following is used only in the _SPEC's / \
	{ "keep-coff", 0 },

	/* Default switches */
	#undef TARGET_DEFAULT
	#define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV \| \
	MASK_OCS_DEBUG_INFO \| \
	MASK_OCS_FRAME_POSITION \| \
	MASK_STANDARD \| \
	MASK_SVR4)
	#undef CPU_DEFAULT
	#define CPU_DEFAULT MASK_88000

	/* Macros to be automatically defined. __svr4__ is our extension.
	__CLASSIFY_TYPE__ is used in the <varargs.h> and <stdarg.h> header
	files with DG/UX revision 5.40 and later. This allows GNU CC to
	operate without installing the header files. */

	#undef CPP_PREDEFINES
	#define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -DDGUX -D__CLASSIFY_TYPE__=2\
	-D__svr4__ -Asystem=unix -Acpu=m88k -Amachine=m88k"

	/* If -m88100 is in effect, add -Dm88100; similarly for -m88110.
	Here, the CPU_DEFAULT is assumed to be -m88000. If not -ansi,
	-traditional, or restricting include files to one specific source
	target, specify full DG/UX features. */
	#undef CPP_SPEC
	#define CPP_SPEC "%(cpp_cpu) %{msvr3:-D_M88KBCS_TARGET} %{!msvr3:-D_DGUX_TARGET}"

	/* Assembler support (-V, silicon filter, legends for mxdb). */
	#undef ASM_SPEC
	#define ASM_SPEC "%{pipe:%{!.s: - }\
	%{!msvr3:%{!m88110:-KV3 }%{m88110:-KV04.00 }}}\
	%(asm_cpu)"

	/* Override svr4.h. */
	#undef ASM_FINAL_SPEC
	#undef STARTFILE_SPEC

	/* Linker and library spec's.
	-msvr4 is the default if -msvr3 is not specified.
	-static, -shared, -symbolic, -h* and -z* access AT&T V.4 link options.
	-svr4 instructs gcc to place /usr/lib/values-X[cat].o on the link line.
	-msvr3 indicates linking done in a COFF environment and the link
	script is added to the link line. In all environments, the first
	and last objects are crtbegin.o (or bcscrtbegin.o) and crtend.o.
	When the -G link option is used (-shared and -symbolic) a final
	link is not being done. */
	#undef ENDFILE_SPEC
	#define ENDFILE_SPEC "crtend.o%s"
	#undef LIB_SPEC
	#define LIB_SPEC "%{!msvr3:%{!shared:-lstaticdgc}} %{!shared:%{!symbolic:-lc}}"
	#undef LINK_SPEC
	#define LINK_SPEC "%{z} %{h} %{v:-V} \
	%{static:-dn -Bstatic} \
	%{shared:-G -dy} \
	%{symbolic:-Bsymbolic -G -dy} \
	%{pg:-L/usr/lib/libp}%{p:-L/usr/lib/libp}"
	#undef STARTFILE_SPEC
	#define STARTFILE_SPEC "%(startfile_default)"


	/* This macro defines names of additional specifications to put in the specs
	that can be used in various specifications like CC1_SPEC. Its definition
	is an initializer with a subgrouping for each command option.

	Each subgrouping contains a string constant, that defines the
	specification name, and a string constant that used by the GNU CC driver
	program.

	Do not define this macro if it does not need to do anything. */

	#define EXTRA_SPECS \
	{ "cpp_cpu", CPP_CPU_SPEC }, \
	{ "asm_cpu", ASM_CPU_SPEC }, \
	{ "startfile_default", STARTFILE_DEFAULT_SPEC }, \
	{ "startfile_crtbegin", STARTFILE_CRTBEGIN_SPEC }

	/* Keep this left justified, no white space is allowed between
	the arguments to the -Wc option */
	#define ASM_CPU_SPEC "\
	%{v:-V}\
	%{g:\
	%{mno-legend:-Wc,off}\
	%{!mno-legend:-Wc,-fix-bb,-s\"%i\"\
	%{traditional:,-lc}\
	%{!traditional:,-lansi-c}\
	%{mstandard:,-keep-std}\
	%{mexternal-legend:,-external}\
	%{mocs-frame-position:,-ocs}}}"

	#define CPP_CPU_SPEC "\
	%{!m88000:%{!m88100:%{m88110:-D__m88110__}}} \
	%{!m88000:%{!m88110:%{m88100:-D__m88100__}}} \
	%{!ansi:%{!traditional:-D__OPEN_NAMESPACE__}}"

	#define STARTFILE_DEFAULT_SPEC "\
	%{!shared:%{!symbolic:%{pg:gcrt0.o%s} \
	%{!pg:%{p:/lib/mcrt0.o}%{!p:/lib/crt0.o}} \
	%(startfile_crtbegin) \
	%{svr4:%{ansi:/lib/values-Xc.o} \
	%{!ansi:%{traditional:/lib/values-Xt.o} \
	%{!traditional:/usr/lib/values-Xa.o}}}}}"

	#define STARTFILE_CRTBEGIN_SPEC "\
	%{msvr3:m88kdgux.ld%s bcscrtbegin.o%s} \
	%{!msvr3:crtbegin.o%s}"

	#undef GPLUSPLUS_INCLUDE_DIR
	#define GPLUSPLUS_INCLUDE_DIR "/usr/opt/g++/lib/g++-include"

	/* Fast DG/UX version of profiler that does not require lots of
	registers to be stored. */
	#undef FUNCTION_PROFILER
	#define FUNCTION_PROFILER(FILE, LABELNO) \
	output_function_profiler (FILE, LABELNO, "gcc.mcount", 0)

	/* Output the legend info for mxdb when debugging except if standard
	debugging information only is explicitly requested. */
	#undef ASM_FIRST_LINE
	#define ASM_FIRST_LINE(FILE) \
	do { \
	if (TARGET_SVR4) \
	{ \
	if (TARGET_88110) \
	fprintf (FILE, "%s\"%s\"\n", VERSION_ASM_OP, "04.00"); \
	else \
	fprintf (FILE, "%s\"%s\"\n", VERSION_ASM_OP, "03.00"); \
	} \
	if (write_symbols != NO_DEBUG && !TARGET_NOLEGEND) \
	{ \
	fprintf (FILE, ";legend_info -fix-bb -h\"gcc-%s\" -s\"%s\"", \
	version_string, main_input_filename); \
	fputs (flag_traditional ? " -lc" : " -lansi-c", FILE); \
	if (TARGET_STANDARD) \
	fputs (" -keep-std", FILE); \
	if (TARGET_EXTERNAL_LEGEND) \
	fputs (" -external", FILE); \
	if (TARGET_OCS_FRAME_POSITION) \
	fputs (" -ocs", FILE); \
	fputc ('\n', FILE); \
	} \
	} while (0)

	/* Override svr4.h. */
	#undef PTRDIFF_TYPE
	#undef WCHAR_TYPE
	#undef WCHAR_TYPE_SIZE

	/* Override svr4.h and m88k.h except when compiling crtstuff.c. These must
	be constant strings when compiling crtstuff.c. Otherwise, respect the
	-mversion-STRING option used. */
	#undef INIT_SECTION_PREAMBLE
	#undef INIT_SECTION_ASM_OP
	#undef FINI_SECTION_ASM_OP
	#undef CTORS_SECTION_ASM_OP
	#undef DTORS_SECTION_ASM_OP

	#if defined (CRT_BEGIN) \|\| defined (CRT_END) \|\| defined (L__main)
	/* routines to invoke global constructors and destructors are always COFF
	to enable linking mixed COFF and ELF objects */
	#define FINI_SECTION_ASM_OP ("\tsection .fini,\"x\"")
	#ifndef BCS
	#define INIT_SECTION_PREAMBLE asm ("\taddu\tr31,r31,0x20")
	#endif
	#undef INIT_SECTION_ASM_OP
	#define INIT_SECTION_ASM_OP ("\tsection\t .init,\"x\"")
	#undef CTORS_SECTION_ASM_OP
	#define CTORS_SECTION_ASM_OP ("\tsection\t .ctors,\"d\"")
	#undef DTORS_SECTION_ASM_OP
	#define DTORS_SECTION_ASM_OP ("\tsection\t .dtors,\"d\"")
	#undef OBJECT_FORMAT_ELF
	#else
	#undef INIT_SECTION_ASM_OP
	#define INIT_SECTION_ASM_OP (TARGET_SVR4 \
	? "\tsection\t .init,\"xa\"" \
	: "\tsection\t .init,\"x\"")
	#undef CTORS_SECTION_ASM_OP
	#define CTORS_SECTION_ASM_OP (TARGET_SVR4 \
	? "\tsection\t .ctors,\"aw\"" \
	: "\tsection\t .ctors,\"d\"")
	#undef DTORS_SECTION_ASM_OP
	#define DTORS_SECTION_ASM_OP (TARGET_SVR4 \
	? "\tsection\t .dtors,\"aw\"" \
	: "\tsection\t .dtors,\"d\"")
	#endif /* crtstuff.c */

	/* The lists of global object constructors and global destructors are always
	placed in the .ctors/.dtors sections. This requires the use of a link
	script if the COFF linker is used, but otherwise COFF and ELF objects
	can be intermixed. A COFF object will pad the section to 16 bytes with
	zeros; and ELF object will not contain padding. We deal with this by
	putting a -1 marker at the begin and end of the list and ignoring zero
	entries. */

	/* Mark the end of the .ctors/.dtors sections with a -1. */

	#define CTOR_LIST_BEGIN \
	asm (CTORS_SECTION_ASM_OP); \
	func_ptr __CTOR_LIST__[1] = { (func_ptr) (-1) }

	#define CTOR_LIST_END \
	asm (CTORS_SECTION_ASM_OP); \
	func_ptr __CTOR_END__[1] = { (func_ptr) (-1) }

	#define DTOR_LIST_BEGIN \
	asm (DTORS_SECTION_ASM_OP); \
	func_ptr __DTOR_LIST__[1] = { (func_ptr) (-1) }

	#define DTOR_LIST_END \
	asm (DTORS_SECTION_ASM_OP); \
	func_ptr __DTOR_END__[1] = { (func_ptr) (-1) }

	/* Walk the list ignoring NULL entries till we hit the terminating -1. */
	#define DO_GLOBAL_CTORS_BODY \
	do { \
	int i; \
	for (i=1;(int)(__CTOR_LIST__[i]) != -1; i++) \
	if (((int *)__CTOR_LIST__)[i] != 0) \
	__CTOR_LIST__[i] (); \
	} while (0)

	/* Walk the list looking for the terminating -1 that marks the end.
	Go backward and ignore any NULL entries. */
	#define DO_GLOBAL_DTORS_BODY \
	do { \
	int i; \
	for (i=1;(int)(__DTOR_LIST__[i]) != -1; i++); \
	for (i-=1;(int)(__DTOR_LIST__[i]) != -1; i--) \
	if (((int *)__DTOR_LIST__)[i] != 0) \
	__DTOR_LIST__[i] (); \
	} while (0)

	/* The maximum alignment which the object file format can support.
	page alignment would seem to be enough */
	#undef MAX_OFILE_ALIGNMENT
	#define MAX_OFILE_ALIGNMENT 0x1000

	/* Must use data section for relocatable constants when pic. */
	#undef SELECT_RTX_SECTION
	#define SELECT_RTX_SECTION(MODE,RTX) \
	{ \
	if (flag_pic && symbolic_operand (RTX)) \
	data_section (); \
	else \
	const_section (); \
	}