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- /* Definitions of target machine for GNU compiler.
- Motorola m88100 running DG/UX.
- Copyright (C) 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
- Contributed by Michael Tiemann (tiemann@mcc.com)
- Enhanced by Michael Meissner (meissner@osf.org)
- Version 2 port by Tom Wood (Tom_Wood@NeXT.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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* You're not seeing double! To transition to dwarf debugging, both are
- supported. The option -msvr4 and -mversion-03.00 specify (for DG/UX)
- `real' elf. With these combinations, -g means dwarf. */
- /* DWARF_DEBUGGING_INFO defined in svr4.h. */
- #define SDB_DEBUGGING_INFO
- #define PREFERRED_DEBUGGING_TYPE \
- (GET_VERSION_0300_SYNTAX ? DWARF_DEBUG : SDB_DEBUG)
- /* This controls a bug fix in cp-decl.c.
- For version 2.6, someone should figure out the right condition. */
- #define RMS_QUICK_HACK_1
-
- #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_LEGEND 0x20000000 /* Retain legend information */
- #define MASK_EXTERNAL_LEGEND 0x10000000 /* Make external legends */
-
- #define TARGET_STANDARD (target_flags & MASK_STANDARD)
- #define TARGET_LEGEND (target_flags & MASK_LEGEND)
- #define TARGET_EXTERNAL_LEGEND (target_flags & MASK_EXTERNAL_LEGEND)
-
- #undef SUBTARGET_SWITCHES
- #define SUBTARGET_SWITCHES \
- { "standard", MASK_STANDARD }, \
- { "legend", MASK_LEGEND }, \
- { "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)
- #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) -Asystem(svr4) -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 "%{!m88000:%{!m88100:%{m88110:-D__m88110__}}} \
- %{!m88000:%{!m88110:%{m88100:-D__m88100__}}} \
- %{!ansi:%{!traditional:-D__OPEN_NAMESPACE__}}"
-
- /* Assembler support (-V, silicon filter, legends for mxdb). */
- #undef ASM_SPEC
- #define ASM_SPEC "\
- %{V} %{v:%{!V:-V}} %{pipe:%{!.s: - }\
- %{msvr4:%{mversion-03.00:-KV3}%{!mversion-03.00:%{mversion-*:-KV%*}}}}\
- %{!mlegend:%{mstandard:-Wc,off}}\
- %{mlegend:-Wc,-fix-bb,-h\"gcc-2.3.3\",-s\"%i\"\
- %{traditional:,-lc}%{!traditional:,-lansi-c}\
- %{mstandard:,-keep-std}\
- %{mkeep-coff:,-keep-coff}\
- %{mexternal-legend:,-external}\
- %{mocs-frame-position:,-ocs}}"
-
- /* Override svr4.h. */
- #undef ASM_FINAL_SPEC
- #undef STARTFILE_SPEC
-
- /* Linker and library spec's.
- -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 link the line.
- The absense of -msvr4 indicates linking done in a COFF environment and
- adds the link script to the link line. In all environments, the first
- and last objects are crtbegin.o and crtend.o.
- When the -G link option is used (-shared and -symbolic) a final link is
- not being done. */
- #undef LIB_SPEC
- #define LIB_SPEC "%{msvr4:%{!shared:-lstaticdgc}} %{!shared:%{!symbolic:-lc}} crtend.o%s"
- #undef LINK_SPEC
- #define LINK_SPEC "%{z*} %{h*} %{V} %{v:%{!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 "%{!shared:%{!symbolic:%{pg:gcrt0.o%s} \
- %{!pg:%{p:/lib/mcrt0.o}%{!p:/lib/crt0.o}} \
- %{!msvr4:m88kdgux.ld%s} crtbegin.o%s \
- %{svr4:%{ansi:/lib/values-Xc.o} \
- %{!ansi:%{traditional:/lib/values-Xt.o} \
- %{!traditional:/usr/lib/values-Xa.o}}}}}"
-
- /* 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)
-
- /* DGUX V.4 isn't quite ELF--yet. */
- #undef VERSION_0300_SYNTAX
- #define VERSION_0300_SYNTAX (TARGET_SVR4 && m88k_version_0300)
-
- /* Same, but used before OVERRIDE_OPTIONS has been processed. */
- #define GET_VERSION_0300_SYNTAX \
- (TARGET_SVR4 && m88k_version != 0 && strcmp (m88k_version, "03.00") >= 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 (m88k_version) \
- fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, m88k_version); \
- if (write_symbols != NO_DEBUG \
- && ! (TARGET_STANDARD && ! TARGET_LEGEND)) \
- { \
- 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. */
- #if !defined (CRT_BEGIN) && !defined (CRT_END)
- #undef INIT_SECTION_ASM_OP
- #define INIT_SECTION_ASM_OP (VERSION_0300_SYNTAX \
- ? "section\t .init,\"xa\"" \
- : "section\t .init,\"x\"")
- #undef CTORS_SECTION_ASM_OP
- #define CTORS_SECTION_ASM_OP (VERSION_0300_SYNTAX \
- ? "section\t .ctors,\"aw\"" \
- : "section\t .ctors,\"d\"")
- #undef DTORS_SECTION_ASM_OP
- #define DTORS_SECTION_ASM_OP (VERSION_0300_SYNTAX \
- ? "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_END \
- asm (CTORS_SECTION_ASM_OP); \
- func_ptr __CTOR_END__[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)
-