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/* Definitions of target machine for GNU compiler.
Motorola m88100 running DG/UX.
Copyright (C) 1988, 92, 93, 94, 95, 96, 1997 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 VERSION_INFO2
#define VERSION_INFO2 "$Revision: 1.2 $"
#endif
#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, "\t%s\t \"%s\"\n", VERSION_ASM_OP, "04.00"); \
else \
fprintf (FILE, "\t%s\t \"%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 ("section .fini,\"x\"")
#ifndef BCS
#define INIT_SECTION_PREAMBLE asm ("\taddu\tr31,r31,0x20")
#endif
#undef INIT_SECTION_ASM_OP
#define INIT_SECTION_ASM_OP ("section\t .init,\"x\"")
#undef CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP ("section\t .ctors,\"d\"")
#undef DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP ("section\t .dtors,\"d\"")
#undef OBJECT_FORMAT_ELF
#else
#undef INIT_SECTION_ASM_OP
#define INIT_SECTION_ASM_OP (TARGET_SVR4 \
? "section\t .init,\"xa\"" \
: "section\t .init,\"x\"")
#undef CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP (TARGET_SVR4 \
? "section\t .ctors,\"aw\"" \
: "section\t .ctors,\"d\"")
#undef DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP (TARGET_SVR4 \
? "section\t .dtors,\"aw\"" \
: "section\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 (); \
}
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