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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]) ! 6: Version 2 port by Tom Wood ([email protected]) ! 7: ! 8: This file is part of GNU CC. ! 9: ! 10: GNU CC is free software; you can redistribute it and/or modify ! 11: it under the terms of the GNU General Public License as published by ! 12: the Free Software Foundation; either version 2, or (at your option) ! 13: any later version. ! 14: ! 15: GNU CC is distributed in the hope that it will be useful, ! 16: but WITHOUT ANY WARRANTY; without even the implied warranty of ! 17: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ! 18: GNU General Public License for more details. ! 19: ! 20: You should have received a copy of the GNU General Public License ! 21: along with GNU CC; see the file COPYING. If not, write to ! 22: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ ! 23: ! 24: /* You're not seeing double! To transition to dwarf debugging, both are ! 25: supported. The option -msvr4 and -mversion-03.00 specify (for DG/UX) ! 26: `real' elf. With these combinations, -g means dwarf. */ ! 27: /* DWARF_DEBUGGING_INFO defined in svr4.h. */ ! 28: #define SDB_DEBUGGING_INFO ! 29: #define PREFERRED_DEBUGGING_TYPE \ ! 30: (GET_VERSION_0300_SYNTAX ? DWARF_DEBUG : SDB_DEBUG) ! 31: /* This controls a bug fix in cp-decl.c. ! 32: For version 2.6, someone should figure out the right condition. */ ! 33: #define RMS_QUICK_HACK_1 ! 34: ! 35: #ifndef NO_BUGS ! 36: #define AS_BUG_IMMEDIATE_LABEL ! 37: /* The DG/UX 4.30 assembler doesn't accept the symbol `fcr63'. */ ! 38: #define AS_BUG_FLDCR ! 39: #endif ! 40: ! 41: #include "svr4.h" ! 42: #include "m88k/m88k.h" ! 43: ! 44: /* Augment TARGET_SWITCHES with the MXDB options. */ ! 45: #define MASK_STANDARD 0x40000000 /* Retain standard information */ ! 46: #define MASK_LEGEND 0x20000000 /* Retain legend information */ ! 47: #define MASK_EXTERNAL_LEGEND 0x10000000 /* Make external legends */ ! 48: ! 49: #define TARGET_STANDARD (target_flags & MASK_STANDARD) ! 50: #define TARGET_LEGEND (target_flags & MASK_LEGEND) ! 51: #define TARGET_EXTERNAL_LEGEND (target_flags & MASK_EXTERNAL_LEGEND) ! 52: ! 53: #undef SUBTARGET_SWITCHES ! 54: #define SUBTARGET_SWITCHES \ ! 55: { "standard", MASK_STANDARD }, \ ! 56: { "legend", MASK_LEGEND }, \ ! 57: { "external-legend", MASK_EXTERNAL_LEGEND }, \ ! 58: /* the following is used only in the *_SPEC's */ \ ! 59: { "keep-coff", 0 }, ! 60: ! 61: /* Default switches */ ! 62: #undef TARGET_DEFAULT ! 63: #define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV | \ ! 64: MASK_OCS_DEBUG_INFO | \ ! 65: MASK_OCS_FRAME_POSITION) ! 66: #undef CPU_DEFAULT ! 67: #define CPU_DEFAULT MASK_88000 ! 68: ! 69: /* Macros to be automatically defined. __svr4__ is our extension. ! 70: __CLASSIFY_TYPE__ is used in the <varargs.h> and <stdarg.h> header ! 71: files with DG/UX revision 5.40 and later. This allows GNU CC to ! 72: operate without installing the header files. */ ! 73: ! 74: #undef CPP_PREDEFINES ! 75: #define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -DDGUX -D__CLASSIFY_TYPE__=2\ ! 76: -D__svr4__ -Asystem(unix) -Asystem(svr4) -Acpu(m88k) -Amachine(m88k)" ! 77: ! 78: /* If -m88100 is in effect, add -Dm88100; similarly for -m88110. ! 79: Here, the CPU_DEFAULT is assumed to be -m88000. If not -ansi, ! 80: -traditional, or restricting include files to one specific source ! 81: target, specify full DG/UX features. */ ! 82: #undef CPP_SPEC ! 83: #define CPP_SPEC "%{!m88000:%{!m88100:%{m88110:-D__m88110__}}} \ ! 84: %{!m88000:%{!m88110:%{m88100:-D__m88100__}}} \ ! 85: %{!ansi:%{!traditional:-D__OPEN_NAMESPACE__}}" ! 86: ! 87: /* Assembler support (-V, silicon filter, legends for mxdb). */ ! 88: #undef ASM_SPEC ! 89: #define ASM_SPEC "\ ! 90: %{V} %{v:%{!V:-V}} %{pipe:%{!.s: - }\ ! 91: %{msvr4:%{mversion-03.00:-KV3}%{!mversion-03.00:%{mversion-*:-KV%*}}}}\ ! 92: %{!mlegend:%{mstandard:-Wc,off}}\ ! 93: %{mlegend:-Wc,-fix-bb,-h\"gcc-2.3.3\",-s\"%i\"\ ! 94: %{traditional:,-lc}%{!traditional:,-lansi-c}\ ! 95: %{mstandard:,-keep-std}\ ! 96: %{mkeep-coff:,-keep-coff}\ ! 97: %{mexternal-legend:,-external}\ ! 98: %{mocs-frame-position:,-ocs}}" ! 99: ! 100: /* Override svr4.h. */ ! 101: #undef ASM_FINAL_SPEC ! 102: #undef STARTFILE_SPEC ! 103: ! 104: /* Linker and library spec's. ! 105: -static, -shared, -symbolic, -h* and -z* access AT&T V.4 link options. ! 106: -svr4 instructs gcc to place /usr/lib/values-X[cat].o on link the line. ! 107: The absense of -msvr4 indicates linking done in a COFF environment and ! 108: adds the link script to the link line. In all environments, the first ! 109: and last objects are crtbegin.o and crtend.o. ! 110: When the -G link option is used (-shared and -symbolic) a final link is ! 111: not being done. */ ! 112: #undef LIB_SPEC ! 113: #define LIB_SPEC "%{msvr4:%{!shared:-lstaticdgc}} %{!shared:%{!symbolic:-lc}} crtend.o%s" ! 114: #undef LINK_SPEC ! 115: #define LINK_SPEC "%{z*} %{h*} %{V} %{v:%{!V:-V}} \ ! 116: %{static:-dn -Bstatic} \ ! 117: %{shared:-G -dy} \ ! 118: %{symbolic:-Bsymbolic -G -dy} \ ! 119: %{pg:-L/usr/lib/libp}%{p:-L/usr/lib/libp}" ! 120: #undef STARTFILE_SPEC ! 121: #define STARTFILE_SPEC "%{!shared:%{!symbolic:%{pg:gcrt0.o%s} \ ! 122: %{!pg:%{p:/lib/mcrt0.o}%{!p:/lib/crt0.o}} \ ! 123: %{!msvr4:m88kdgux.ld%s} crtbegin.o%s \ ! 124: %{svr4:%{ansi:/lib/values-Xc.o} \ ! 125: %{!ansi:%{traditional:/lib/values-Xt.o} \ ! 126: %{!traditional:/usr/lib/values-Xa.o}}}}}" ! 127: ! 128: /* Fast DG/UX version of profiler that does not require lots of ! 129: registers to be stored. */ ! 130: #undef FUNCTION_PROFILER ! 131: #define FUNCTION_PROFILER(FILE, LABELNO) \ ! 132: output_function_profiler (FILE, LABELNO, "gcc.mcount", 0) ! 133: ! 134: /* DGUX V.4 isn't quite ELF--yet. */ ! 135: #undef VERSION_0300_SYNTAX ! 136: #define VERSION_0300_SYNTAX (TARGET_SVR4 && m88k_version_0300) ! 137: ! 138: /* Same, but used before OVERRIDE_OPTIONS has been processed. */ ! 139: #define GET_VERSION_0300_SYNTAX \ ! 140: (TARGET_SVR4 && m88k_version != 0 && strcmp (m88k_version, "03.00") >= 0) ! 141: ! 142: /* Output the legend info for mxdb when debugging except if standard ! 143: debugging information only is explicitly requested. */ ! 144: #undef ASM_FIRST_LINE ! 145: #define ASM_FIRST_LINE(FILE) \ ! 146: do { \ ! 147: if (m88k_version) \ ! 148: fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, m88k_version); \ ! 149: if (write_symbols != NO_DEBUG \ ! 150: && ! (TARGET_STANDARD && ! TARGET_LEGEND)) \ ! 151: { \ ! 152: fprintf (FILE, ";legend_info -fix-bb -h\"gcc-%s\" -s\"%s\"", \ ! 153: VERSION_STRING, main_input_filename); \ ! 154: fputs (flag_traditional ? " -lc" : " -lansi-c", FILE); \ ! 155: if (TARGET_STANDARD) \ ! 156: fputs (" -keep-std", FILE); \ ! 157: if (TARGET_EXTERNAL_LEGEND) \ ! 158: fputs (" -external", FILE); \ ! 159: if (TARGET_OCS_FRAME_POSITION) \ ! 160: fputs (" -ocs", FILE); \ ! 161: fputc ('\n', FILE); \ ! 162: } \ ! 163: } while (0) ! 164: ! 165: /* Override svr4.h. */ ! 166: #undef PTRDIFF_TYPE ! 167: #undef WCHAR_TYPE ! 168: #undef WCHAR_TYPE_SIZE ! 169: ! 170: /* Override svr4.h and m88k.h except when compiling crtstuff.c. These must ! 171: be constant strings when compiling crtstuff.c. Otherwise, respect the ! 172: -mversion-STRING option used. */ ! 173: #if !defined (CRT_BEGIN) && !defined (CRT_END) ! 174: #undef INIT_SECTION_ASM_OP ! 175: #define INIT_SECTION_ASM_OP (VERSION_0300_SYNTAX \ ! 176: ? "section\t .init,\"xa\"" \ ! 177: : "section\t .init,\"x\"") ! 178: #undef CTORS_SECTION_ASM_OP ! 179: #define CTORS_SECTION_ASM_OP (VERSION_0300_SYNTAX \ ! 180: ? "section\t .ctors,\"aw\"" \ ! 181: : "section\t .ctors,\"d\"") ! 182: #undef DTORS_SECTION_ASM_OP ! 183: #define DTORS_SECTION_ASM_OP (VERSION_0300_SYNTAX \ ! 184: ? "section\t .dtors,\"aw\"" \ ! 185: : "section\t .dtors,\"d\"") ! 186: #endif /* crtstuff.c */ ! 187: ! 188: /* The lists of global object constructors and global destructors are always ! 189: placed in the .ctors/.dtors sections. This requires the use of a link ! 190: script if the COFF linker is used, but otherwise COFF and ELF objects ! 191: can be intermixed. A COFF object will pad the section to 16 bytes with ! 192: zeros; and ELF object will not contain padding. We deal with this by ! 193: putting a -1 marker at the begin and end of the list and ignoring zero ! 194: entries. */ ! 195: ! 196: /* Mark the end of the .ctors/.dtors sections with a -1. */ ! 197: #define CTOR_LIST_END \ ! 198: asm (CTORS_SECTION_ASM_OP); \ ! 199: func_ptr __CTOR_END__[1] = { (func_ptr) (-1) } ! 200: ! 201: #define DTOR_LIST_END \ ! 202: asm (DTORS_SECTION_ASM_OP); \ ! 203: func_ptr __DTOR_END__[1] = { (func_ptr) (-1) } ! 204: ! 205: /* Walk the list ignoring NULL entries till we hit the terminating -1. */ ! 206: #define DO_GLOBAL_CTORS_BODY \ ! 207: do { \ ! 208: int i; \ ! 209: for (i=1;(int)(__CTOR_LIST__[i]) != -1; i++) \ ! 210: if (((int *)__CTOR_LIST__)[i] != 0) \ ! 211: __CTOR_LIST__[i] (); \ ! 212: } while (0) ! 213: ! 214: /* Walk the list looking for the terminating -1 that marks the end. ! 215: Go backward and ignore any NULL entries. */ ! 216: #define DO_GLOBAL_DTORS_BODY \ ! 217: do { \ ! 218: int i; \ ! 219: for (i=1;(int)(__DTOR_LIST__[i]) != -1; i++); \ ! 220: for (i-=1;(int)(__DTOR_LIST__[i]) != -1; i--) \ ! 221: if (((int *)__DTOR_LIST__)[i] != 0) \ ! 222: __DTOR_LIST__[i] (); \ ! 223: } while (0)
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