1 /* Definitions of target machine for GNU compiler.
2 Motorola m88100 running DG/UX.
3 Copyright (C) 1988, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
4 Contributed by Michael Tiemann (tiemann@mcc.com)
5 Currently maintained by (gcc@dg-rtp.dg.com)
7 This file is part of GNU CC.
9 GNU CC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
14 GNU CC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GNU CC; see the file COPYING. If not, write to
21 the Free Software Foundation, 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
24 /* You're not seeing double! To transition to dwarf debugging, both are
25 supported. The option -msvr4 specifies elf. With these combinations,
27 /* DWARF_DEBUGGING_INFO defined in svr4.h. */
28 #define SDB_DEBUGGING_INFO
29 #define PREFERRED_DEBUGGING_TYPE \
30 (TARGET_SVR4 ? DWARF_DEBUG : SDB_DEBUG)
33 #define VERSION_INFO2 "$Revision: 1.21 $"
36 #define AS_BUG_IMMEDIATE_LABEL
37 /* The DG/UX 4.30 assembler doesn't accept the symbol `fcr63'. */
42 #include "m88k/m88k.h"
44 /* Augment TARGET_SWITCHES with the MXDB options. */
45 #define MASK_STANDARD 0x40000000 /* Retain standard information */
46 #define MASK_NOLEGEND 0x20000000 /* Discard legend information */
47 #define MASK_EXTERNAL_LEGEND 0x10000000 /* Make external legends */
49 #define TARGET_STANDARD (target_flags & MASK_STANDARD)
50 #define TARGET_NOLEGEND (target_flags & MASK_NOLEGEND)
51 #define TARGET_EXTERNAL_LEGEND (target_flags & MASK_EXTERNAL_LEGEND)
53 #undef SUBTARGET_SWITCHES
54 #define SUBTARGET_SWITCHES \
55 { "standard", MASK_STANDARD }, \
56 { "legend", -MASK_NOLEGEND }, \
57 { "no-legend", MASK_NOLEGEND }, \
58 { "external-legend", MASK_EXTERNAL_LEGEND }, \
59 /* the following is used only in the *_SPEC's */ \
62 /* Default switches */
64 #define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV | \
65 MASK_OCS_DEBUG_INFO | \
66 MASK_OCS_FRAME_POSITION | \
70 #define CPU_DEFAULT MASK_88000
72 /* Macros to be automatically defined. __svr4__ is our extension.
73 __CLASSIFY_TYPE__ is used in the <varargs.h> and <stdarg.h> header
74 files with DG/UX revision 5.40 and later. This allows GNU CC to
75 operate without installing the header files. */
78 #define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -DDGUX -D__CLASSIFY_TYPE__=2\
79 -D__svr4__ -Asystem(unix) -Acpu(m88k) -Amachine(m88k)"
81 /* If -m88100 is in effect, add -Dm88100; similarly for -m88110.
82 Here, the CPU_DEFAULT is assumed to be -m88000. If not -ansi,
83 -traditional, or restricting include files to one specific source
84 target, specify full DG/UX features. */
86 #define CPP_SPEC "%(cpp_cpu)
87 %{msvr3:-D_M88KBCS_TARGET} %{!msvr3:-D_DGUX_TARGET}"
89 /* Assembler support (-V, silicon filter, legends for mxdb). */
91 #define ASM_SPEC "%{pipe:%{!.s: - }\
92 %{!msvr3:%{!m88110:-KV3 }%{m88110:-KV04.00 }}}\
95 /* Override svr4.h. */
99 /* Linker and library spec's.
100 -msvr4 is the default if -msvr3 is not specified.
101 -static, -shared, -symbolic, -h* and -z* access AT&T V.4 link options.
102 -svr4 instructs gcc to place /usr/lib/values-X[cat].o on the link line.
103 -msvr3 indicates linking done in a COFF environment and the link
104 script is added to the link line. In all environments, the first
105 and last objects are crtbegin.o (or bcscrtbegin.o) and crtend.o.
106 When the -G link option is used (-shared and -symbolic) a final
107 link is not being done. */
109 #define ENDFILE_SPEC "crtend.o%s"
111 #define LIB_SPEC "%{!msvr3:%{!shared:-lstaticdgc}} %{!shared:%{!symbolic:-lc}}"
113 #define LINK_SPEC "%{z*} %{h*} %{V} %{v:%{!V:-V}} \
114 %{static:-dn -Bstatic} \
116 %{symbolic:-Bsymbolic -G -dy} \
117 %{pg:-L/usr/lib/libp}%{p:-L/usr/lib/libp}"
118 #undef STARTFILE_SPEC
119 #define STARTFILE_SPEC "%(startfile_default)"
122 /* This macro defines names of additional specifications to put in the specs
123 that can be used in various specifications like CC1_SPEC. Its definition
124 is an initializer with a subgrouping for each command option.
126 Each subgrouping contains a string constant, that defines the
127 specification name, and a string constant that used by the GNU CC driver
130 Do not define this macro if it does not need to do anything. */
132 #define EXTRA_SPECS \
133 { "cpp_cpu", CPP_CPU_SPEC }, \
134 { "asm_cpu", ASM_CPU_SPEC }, \
135 { "startfile_default", STARTFILE_DEFAULT_SPEC }, \
136 { "startfile_crtbegin", STARTFILE_CRTBEGIN_SPEC }
138 #define ASM_CPU_SPEC "\
141 %{mno-legend:-Wc,off}\
142 %{!mno-legend:-Wc,-fix-bb,-s\"%i\"\
144 %{!traditional:,-lansi-c}\
145 %{mstandard:,-keep-std}\
146 %{mexternal-legend:,-external}\
147 %{mocs-frame-position:,-ocs}}}"
149 #define CPP_CPU_SPEC "\
150 %{!m88000:%{!m88100:%{m88110:-D__m88110__}}} \
151 %{!m88000:%{!m88110:%{m88100:-D__m88100__}}} \
152 %{!ansi:%{!traditional:-D__OPEN_NAMESPACE__}}"
154 #define STARTFILE_DEFAULT_SPEC "\
155 %{!shared:%{!symbolic:%{pg:gcrt0.o%s} \
156 %{!pg:%{p:/lib/mcrt0.o}%{!p:/lib/crt0.o}} \
157 %(startfile_crtbegin) \
158 %{svr4:%{ansi:/lib/values-Xc.o} \
159 %{!ansi:%{traditional:/lib/values-Xt.o} \
160 %{!traditional:/usr/lib/values-Xa.o}}}}}"
162 #define STARTFILE_CRTBEGIN_SPEC "\
163 %{msvr3:m88kdgux.ld%s bcscrtbegin.o%s} \
164 %{!msvr3:crtbegin.o%s}"
166 #undef GPLUSPLUS_INCLUDE_DIR
167 #define GPLUSPLUS_INCLUDE_DIR "/usr/opt/g++/lib/g++-include"
169 /* Fast DG/UX version of profiler that does not require lots of
170 registers to be stored. */
171 #undef FUNCTION_PROFILER
172 #define FUNCTION_PROFILER(FILE, LABELNO) \
173 output_function_profiler (FILE, LABELNO, "gcc.mcount", 0)
175 /* Output the legend info for mxdb when debugging except if standard
176 debugging information only is explicitly requested. */
177 #undef ASM_FIRST_LINE
178 #define ASM_FIRST_LINE(FILE) \
183 fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, "04.00"); \
185 fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, "03.00"); \
187 if (write_symbols != NO_DEBUG && !TARGET_NOLEGEND) \
189 fprintf (FILE, ";legend_info -fix-bb -h\"gcc-%s\" -s\"%s\"", \
190 VERSION_STRING, main_input_filename); \
191 fputs (flag_traditional ? " -lc" : " -lansi-c", FILE); \
192 if (TARGET_STANDARD) \
193 fputs (" -keep-std", FILE); \
194 if (TARGET_EXTERNAL_LEGEND) \
195 fputs (" -external", FILE); \
196 if (TARGET_OCS_FRAME_POSITION) \
197 fputs (" -ocs", FILE); \
198 fputc ('\n', FILE); \
202 /* Override svr4.h. */
205 #undef WCHAR_TYPE_SIZE
207 /* Override svr4.h and m88k.h except when compiling crtstuff.c. These must
208 be constant strings when compiling crtstuff.c. Otherwise, respect the
209 -mversion-STRING option used. */
210 #undef INIT_SECTION_PREAMBLE
211 #undef INIT_SECTION_ASM_OP
212 #undef FINI_SECTION_ASM_OP
213 #undef CTORS_SECTION_ASM_OP
214 #undef DTORS_SECTION_ASM_OP
216 #if defined (CRT_BEGIN) || defined (CRT_END) || defined (L__main)
217 /* routines to invoke global constructors and destructors are always COFF
218 to enable linking mixed COFF and ELF objects */
219 #define FINI_SECTION_ASM_OP ("section .fini,\"x\"")
221 #define INIT_SECTION_PREAMBLE asm ("\taddu\tr31,r31,0x20")
223 #undef INIT_SECTION_ASM_OP
224 #define INIT_SECTION_ASM_OP ("section\t .init,\"x\"")
225 #undef CTORS_SECTION_ASM_OP
226 #define CTORS_SECTION_ASM_OP ("section\t .ctors,\"d\"")
227 #undef DTORS_SECTION_ASM_OP
228 #define DTORS_SECTION_ASM_OP ("section\t .dtors,\"d\"")
229 #undef OBJECT_FORMAT_ELF
231 #undef INIT_SECTION_ASM_OP
232 #define INIT_SECTION_ASM_OP (TARGET_SVR4 \
233 ? "section\t .init,\"xa\"" \
234 : "section\t .init,\"x\"")
235 #undef CTORS_SECTION_ASM_OP
236 #define CTORS_SECTION_ASM_OP (TARGET_SVR4 \
237 ? "section\t .ctors,\"aw\"" \
238 : "section\t .ctors,\"d\"")
239 #undef DTORS_SECTION_ASM_OP
240 #define DTORS_SECTION_ASM_OP (TARGET_SVR4 \
241 ? "section\t .dtors,\"aw\"" \
242 : "section\t .dtors,\"d\"")
243 #endif /* crtstuff.c */
245 /* The lists of global object constructors and global destructors are always
246 placed in the .ctors/.dtors sections. This requires the use of a link
247 script if the COFF linker is used, but otherwise COFF and ELF objects
248 can be intermixed. A COFF object will pad the section to 16 bytes with
249 zeros; and ELF object will not contain padding. We deal with this by
250 putting a -1 marker at the begin and end of the list and ignoring zero
253 /* Mark the end of the .ctors/.dtors sections with a -1. */
255 #define CTOR_LIST_BEGIN \
256 asm (CTORS_SECTION_ASM_OP); \
257 func_ptr __CTOR_LIST__[1] = { (func_ptr) (-1) }
259 #define CTOR_LIST_END \
260 asm (CTORS_SECTION_ASM_OP); \
261 func_ptr __CTOR_END__[1] = { (func_ptr) (-1) }
263 #define DTOR_LIST_BEGIN \
264 asm (DTORS_SECTION_ASM_OP); \
265 func_ptr __DTOR_LIST__[1] = { (func_ptr) (-1) }
267 #define DTOR_LIST_END \
268 asm (DTORS_SECTION_ASM_OP); \
269 func_ptr __DTOR_END__[1] = { (func_ptr) (-1) }
271 /* Walk the list ignoring NULL entries till we hit the terminating -1. */
272 #define DO_GLOBAL_CTORS_BODY \
275 for (i=1;(int)(__CTOR_LIST__[i]) != -1; i++) \
276 if (((int *)__CTOR_LIST__)[i] != 0) \
277 __CTOR_LIST__[i] (); \
280 /* Walk the list looking for the terminating -1 that marks the end.
281 Go backward and ignore any NULL entries. */
282 #define DO_GLOBAL_DTORS_BODY \
285 for (i=1;(int)(__DTOR_LIST__[i]) != -1; i++); \
286 for (i-=1;(int)(__DTOR_LIST__[i]) != -1; i--) \
287 if (((int *)__DTOR_LIST__)[i] != 0) \
288 __DTOR_LIST__[i] (); \
291 /* The maximum alignment which the object file format can support.
292 page alignment would seem to be enough */
293 #undef MAX_OFILE_ALIGNMENT
294 #define MAX_OFILE_ALIGNMENT 0x1000
296 /* Must use data section for relocatable constants when pic. */
297 #undef SELECT_RTX_SECTION
298 #define SELECT_RTX_SECTION(MODE,RTX) \
300 if (flag_pic && symbolic_operand (RTX)) \