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1.1 root 1: /* Definitions of target machine for GNU compiler.
2: Motorola m88100 running DG/UX.
3: Copyright (C) 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
4: Contributed by Michael Tiemann ([email protected])
5: Enhanced by Michael Meissner ([email protected])
1.1.1.3 ! root 6: Version 2 port by Tom Wood ([email protected])
! 7: Currently maintained by ([email protected])
1.1 root 8:
9: This file is part of GNU CC.
10:
11: GNU CC is free software; you can redistribute it and/or modify
12: it under the terms of the GNU General Public License as published by
13: the Free Software Foundation; either version 2, or (at your option)
14: any later version.
15:
16: GNU CC is distributed in the hope that it will be useful,
17: but WITHOUT ANY WARRANTY; without even the implied warranty of
18: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: GNU General Public License for more details.
20:
21: You should have received a copy of the GNU General Public License
22: along with GNU CC; see the file COPYING. If not, write to
23: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
24:
25: /* You're not seeing double! To transition to dwarf debugging, both are
1.1.1.3 ! root 26: supported. The option -msvr4 specifies elf. With these combinations,
! 27: -g means dwarf. */
1.1 root 28: /* DWARF_DEBUGGING_INFO defined in svr4.h. */
29: #define SDB_DEBUGGING_INFO
30: #define PREFERRED_DEBUGGING_TYPE \
1.1.1.3 ! root 31: (TARGET_SVR4 ? DWARF_DEBUG : SDB_DEBUG)
1.1 root 32:
1.1.1.3 ! root 33: #ifndef VERSION_INFO2
! 34: #define VERSION_INFO2 "$Revision: 1.15 $"
! 35: #endif
1.1 root 36: #ifndef NO_BUGS
37: #define AS_BUG_IMMEDIATE_LABEL
38: /* The DG/UX 4.30 assembler doesn't accept the symbol `fcr63'. */
39: #define AS_BUG_FLDCR
40: #endif
41:
42: #include "svr4.h"
43: #include "m88k/m88k.h"
44:
45: /* Augment TARGET_SWITCHES with the MXDB options. */
46: #define MASK_STANDARD 0x40000000 /* Retain standard information */
47: #define MASK_LEGEND 0x20000000 /* Retain legend information */
48: #define MASK_EXTERNAL_LEGEND 0x10000000 /* Make external legends */
49:
50: #define TARGET_STANDARD (target_flags & MASK_STANDARD)
51: #define TARGET_LEGEND (target_flags & MASK_LEGEND)
52: #define TARGET_EXTERNAL_LEGEND (target_flags & MASK_EXTERNAL_LEGEND)
53:
54: #undef SUBTARGET_SWITCHES
55: #define SUBTARGET_SWITCHES \
56: { "standard", MASK_STANDARD }, \
57: { "legend", MASK_LEGEND }, \
58: { "external-legend", MASK_EXTERNAL_LEGEND }, \
59: /* the following is used only in the *_SPEC's */ \
60: { "keep-coff", 0 },
61:
62: /* Default switches */
63: #undef TARGET_DEFAULT
64: #define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV | \
65: MASK_OCS_DEBUG_INFO | \
1.1.1.3 ! root 66: MASK_OCS_FRAME_POSITION | \
! 67: MASK_STANDARD | \
! 68: MASK_SVR4)
1.1 root 69: #undef CPU_DEFAULT
70: #define CPU_DEFAULT MASK_88000
71:
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. */
76:
77: #undef CPP_PREDEFINES
78: #define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -DDGUX -D__CLASSIFY_TYPE__=2\
1.1.1.3 ! root 79: -D__svr4__ -Asystem(unix) -Acpu(m88k) -Amachine(m88k)"
1.1 root 80:
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. */
85: #undef CPP_SPEC
86: #define CPP_SPEC "%{!m88000:%{!m88100:%{m88110:-D__m88110__}}} \
87: %{!m88000:%{!m88110:%{m88100:-D__m88100__}}} \
1.1.1.3 ! root 88: %{!ansi:%{!traditional:-D__OPEN_NAMESPACE__}} \
! 89: %{msvr3:-D_M88KBCS_TARGET} %{!msvr3:-D_DGUX_TARGET}"
1.1 root 90:
91: /* Assembler support (-V, silicon filter, legends for mxdb). */
92: #undef ASM_SPEC
93: #define ASM_SPEC "\
94: %{V} %{v:%{!V:-V}} %{pipe:%{!.s: - }\
1.1.1.3 ! root 95: %{!msvr3:%{!m88110:-KV3 }%{m88110:-KV04.00 }}}\
1.1 root 96: %{!mlegend:%{mstandard:-Wc,off}}\
1.1.1.3 ! root 97: %{mlegend:-Wc,-fix-bb,-h\"gcc-" VERSION_INFO2 "\",-s\"%i\"\
1.1 root 98: %{traditional:,-lc}%{!traditional:,-lansi-c}\
99: %{mstandard:,-keep-std}\
100: %{mkeep-coff:,-keep-coff}\
101: %{mexternal-legend:,-external}\
102: %{mocs-frame-position:,-ocs}}"
103:
104: /* Override svr4.h. */
105: #undef ASM_FINAL_SPEC
106: #undef STARTFILE_SPEC
107:
108: /* Linker and library spec's.
1.1.1.3 ! root 109: -msvr4 is the default if -msvr3 is not specified.
1.1 root 110: -static, -shared, -symbolic, -h* and -z* access AT&T V.4 link options.
1.1.1.3 ! root 111: -svr4 instructs gcc to place /usr/lib/values-X[cat].o on the link line.
! 112: -msvr3 indicates linking done in a COFF environment and the link
! 113: script is added to the link line. In all environments, the first
! 114: and last objects are crtbegin.o (or bcscrtbegin.o) and crtend.o.
! 115: When the -G link option is used (-shared and -symbolic) a final
! 116: link is not being done. */
1.1 root 117: #undef LIB_SPEC
1.1.1.3 ! root 118: #define LIB_SPEC "%{!msvr3:%{!shared:-lstaticdgc}} %{!shared:%{!symbolic:-lc}} crtend.o%s"
1.1 root 119: #undef LINK_SPEC
120: #define LINK_SPEC "%{z*} %{h*} %{V} %{v:%{!V:-V}} \
121: %{static:-dn -Bstatic} \
122: %{shared:-G -dy} \
123: %{symbolic:-Bsymbolic -G -dy} \
124: %{pg:-L/usr/lib/libp}%{p:-L/usr/lib/libp}"
125: #undef STARTFILE_SPEC
126: #define STARTFILE_SPEC "%{!shared:%{!symbolic:%{pg:gcrt0.o%s} \
127: %{!pg:%{p:/lib/mcrt0.o}%{!p:/lib/crt0.o}} \
1.1.1.3 ! root 128: %{msvr3:m88kdgux.ld%s bcscrtbegin.o%s} \
! 129: %{!msvr3:crtbegin.o%s} \
1.1 root 130: %{svr4:%{ansi:/lib/values-Xc.o} \
131: %{!ansi:%{traditional:/lib/values-Xt.o} \
132: %{!traditional:/usr/lib/values-Xa.o}}}}}"
133:
1.1.1.3 ! root 134: #undef GPLUSPLUS_INCLUDE_DIR
! 135: #define GPLUSPLUS_INCLUDE_DIR "/usr/opt/g++/lib/g++-include"
! 136:
1.1 root 137: /* Fast DG/UX version of profiler that does not require lots of
138: registers to be stored. */
139: #undef FUNCTION_PROFILER
140: #define FUNCTION_PROFILER(FILE, LABELNO) \
141: output_function_profiler (FILE, LABELNO, "gcc.mcount", 0)
142:
143: /* Output the legend info for mxdb when debugging except if standard
144: debugging information only is explicitly requested. */
145: #undef ASM_FIRST_LINE
146: #define ASM_FIRST_LINE(FILE) \
147: do { \
1.1.1.3 ! root 148: if (TARGET_SVR4) \
! 149: { \
! 150: if (TARGET_88110) \
! 151: fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, "04.00"); \
! 152: else \
! 153: fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, "03.00"); \
! 154: } \
1.1 root 155: if (write_symbols != NO_DEBUG \
156: && ! (TARGET_STANDARD && ! TARGET_LEGEND)) \
157: { \
158: fprintf (FILE, ";legend_info -fix-bb -h\"gcc-%s\" -s\"%s\"", \
159: VERSION_STRING, main_input_filename); \
160: fputs (flag_traditional ? " -lc" : " -lansi-c", FILE); \
161: if (TARGET_STANDARD) \
162: fputs (" -keep-std", FILE); \
163: if (TARGET_EXTERNAL_LEGEND) \
164: fputs (" -external", FILE); \
165: if (TARGET_OCS_FRAME_POSITION) \
166: fputs (" -ocs", FILE); \
167: fputc ('\n', FILE); \
168: } \
169: } while (0)
170:
171: /* Override svr4.h. */
172: #undef PTRDIFF_TYPE
173: #undef WCHAR_TYPE
174: #undef WCHAR_TYPE_SIZE
175:
176: /* Override svr4.h and m88k.h except when compiling crtstuff.c. These must
177: be constant strings when compiling crtstuff.c. Otherwise, respect the
178: -mversion-STRING option used. */
1.1.1.3 ! root 179: #undef INIT_SECTION_PREAMBLE
! 180: #undef INIT_SECTION_ASM_OP
! 181: #undef FINI_SECTION_ASM_OP
! 182: #undef CTORS_SECTION_ASM_OP
! 183: #undef DTORS_SECTION_ASM_OP
! 184:
1.1 root 185: #if !defined (CRT_BEGIN) && !defined (CRT_END)
186: #undef INIT_SECTION_ASM_OP
1.1.1.3 ! root 187: #define INIT_SECTION_ASM_OP (TARGET_SVR4 \
! 188: ? "section\t .init,\"xa\"" \
1.1 root 189: : "section\t .init,\"x\"")
190: #undef CTORS_SECTION_ASM_OP
1.1.1.3 ! root 191: #define CTORS_SECTION_ASM_OP (TARGET_SVR4 \
1.1 root 192: ? "section\t .ctors,\"aw\"" \
193: : "section\t .ctors,\"d\"")
194: #undef DTORS_SECTION_ASM_OP
1.1.1.3 ! root 195: #define DTORS_SECTION_ASM_OP (TARGET_SVR4 \
1.1 root 196: ? "section\t .dtors,\"aw\"" \
197: : "section\t .dtors,\"d\"")
1.1.1.3 ! root 198: #else
! 199: /* These must be constant strings for crtstuff.c.
! 200: An elf and bcs crtbegin.o are needed since bcs does not
! 201: increment the stack pointer in the init section as elf does */
! 202: #ifndef BCS
! 203: #define INIT_SECTION_PREAMBLE asm ("\taddu\tr31,r31,0x20")
! 204: #endif
! 205: #define INIT_SECTION_ASM_OP "section\t .init,\"x\""
! 206: #define FINI_SECTION_ASM_OP "section\t .fini,\"x\""
! 207: #define CTORS_SECTION_ASM_OP "section\t .ctors,\"d\""
! 208: #define DTORS_SECTION_ASM_OP "section\t .dtors,\"d\""
1.1 root 209: #endif /* crtstuff.c */
210:
211: /* The lists of global object constructors and global destructors are always
212: placed in the .ctors/.dtors sections. This requires the use of a link
213: script if the COFF linker is used, but otherwise COFF and ELF objects
214: can be intermixed. A COFF object will pad the section to 16 bytes with
215: zeros; and ELF object will not contain padding. We deal with this by
216: putting a -1 marker at the begin and end of the list and ignoring zero
217: entries. */
218:
219: /* Mark the end of the .ctors/.dtors sections with a -1. */
220: #define CTOR_LIST_END \
221: asm (CTORS_SECTION_ASM_OP); \
222: func_ptr __CTOR_END__[1] = { (func_ptr) (-1) }
223:
224: #define DTOR_LIST_END \
225: asm (DTORS_SECTION_ASM_OP); \
226: func_ptr __DTOR_END__[1] = { (func_ptr) (-1) }
227:
228: /* Walk the list ignoring NULL entries till we hit the terminating -1. */
229: #define DO_GLOBAL_CTORS_BODY \
230: do { \
231: int i; \
232: for (i=1;(int)(__CTOR_LIST__[i]) != -1; i++) \
233: if (((int *)__CTOR_LIST__)[i] != 0) \
234: __CTOR_LIST__[i] (); \
235: } while (0)
236:
237: /* Walk the list looking for the terminating -1 that marks the end.
238: Go backward and ignore any NULL entries. */
239: #define DO_GLOBAL_DTORS_BODY \
240: do { \
241: int i; \
242: for (i=1;(int)(__DTOR_LIST__[i]) != -1; i++); \
243: for (i-=1;(int)(__DTOR_LIST__[i]) != -1; i--) \
244: if (((int *)__DTOR_LIST__)[i] != 0) \
245: __DTOR_LIST__[i] (); \
246: } while (0)
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