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1.1 ! root 1: /* Definitions of target machine for GNU compiler. Vax sysV version. ! 2: Copyright (C) 1988 Free Software Foundation, Inc. ! 3: ! 4: This file is part of GNU CC. ! 5: ! 6: GNU CC is free software; you can redistribute it and/or modify ! 7: it under the terms of the GNU General Public License as published by ! 8: the Free Software Foundation; either version 2, or (at your option) ! 9: any later version. ! 10: ! 11: GNU CC is distributed in the hope that it will be useful, ! 12: but WITHOUT ANY WARRANTY; without even the implied warranty of ! 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ! 14: GNU General Public License for more details. ! 15: ! 16: You should have received a copy of the GNU General Public License ! 17: along with GNU CC; see the file COPYING. If not, write to ! 18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ ! 19: ! 20: #include "clipper/clipper.h" ! 21: ! 22: #include "svr3.h" ! 23: ! 24: /* Names to predefine in the preprocessor for this target machine. */ ! 25: ! 26: #define CPP_PREDEFINES "-Dclipper -Dunix -Asystem(unix) -Asystem(svr3) -Acpu(clipper) -Amachine(clipper)" ! 27: ! 28: #undef STARTFILE_SPEC ! 29: #define STARTFILE_SPEC \ ! 30: "%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} crtbegin.o%s" ! 31: ! 32: #undef ENDFILE_SPEC ! 33: #define ENDFILE_SPEC "crtend.o%s crtn.o%s" ! 34: ! 35: #undef LIB_SPEC ! 36: ! 37: #undef HAVE_ATEXIT ! 38: #define HAVE_ATEXIT ! 39: ! 40: #define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \ ! 41: { \ ! 42: unsigned char *s; \ ! 43: int i; \ ! 44: for (i = 0, s = (unsigned char *)(PTR); i < (LEN); s++, i++) \ ! 45: { \ ! 46: if ((i % 8) == 0) \ ! 47: fputs ("\n\t.byte\t", (FILE)); \ ! 48: fprintf ((FILE), "%s0x%x", (i%8?",":""), (unsigned)*s); \ ! 49: } \ ! 50: fputs ("\n", (FILE)); \ ! 51: } ! 52: ! 53: #undef ASM_OUTPUT_DOUBLE ! 54: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ ! 55: { \ ! 56: union { int i[2]; double d; } _d_; \ ! 57: _d_.d = VALUE; \ ! 58: fprintf (FILE, "\t.long 0x%08x,0x%08x\n", _d_.i[0],_d_.i[1]); \ ! 59: } ! 60: ! 61: #undef ASM_OUTPUT_FLOAT ! 62: #define ASM_OUTPUT_FLOAT(FILE,VALUE) \ ! 63: { \ ! 64: union { int i; float f; } _f_; \ ! 65: _f_.f = VALUE; \ ! 66: fprintf (FILE, "\t.long 0x%08x\n", _f_.i); \ ! 67: } ! 68: ! 69: /* This is how to output an assembler line ! 70: that says to advance the location counter ! 71: to a multiple of 2**LOG bytes. */ ! 72: ! 73: #define ASM_OUTPUT_ALIGN(FILE,LOG) \ ! 74: fprintf(FILE, "\t.align %d\n", 1 << (LOG)) ! 75: ! 76: ! 77: #define ASM_LONG ".long" ! 78: #define BSS_SECTION_ASM_OP ".bss" ! 79: #undef INIT_SECTION_ASM_OP ! 80: #define INIT_SECTION_ASM_OP ".section .init,\"x\"" ! 81: ! 82: ! 83: /* Define a few machine-specific details of the implementation of ! 84: constructors. ! 85: ! 86: The __CTORS_LIST__ goes in the .init section. Define CTOR_LIST_BEGIN ! 87: and CTOR_LIST_END to contribute to the .init section an instruction to ! 88: push a word containing 0 (or some equivalent of that). ! 89: ! 90: ASM_OUTPUT_CONSTRUCTOR should be defined to push the address of the ! 91: constructor. */ ! 92: ! 93: #define CTOR_LIST_BEGIN \ ! 94: asm (INIT_SECTION_ASM_OP); \ ! 95: asm ("subq $8,sp"); \ ! 96: asm ("loadq $0,r0"); \ ! 97: asm ("storw r0,(sp)") ! 98: ! 99: /* don't need end marker */ ! 100: ! 101: #undef CTOR_LIST_END ! 102: ! 103: #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ ! 104: do { \ ! 105: init_section (); \ ! 106: fputs ("\tloada ", FILE); \ ! 107: assemble_name (FILE, NAME); \ ! 108: fputs (",r0\n\tsubq $8,sp\n\tstorw r0,(sp)\n", FILE); \ ! 109: } while (0) ! 110: ! 111: ! 112: /* fini psect is 8 aligned */ ! 113: ! 114: #define DTOR_LIST_BEGIN \ ! 115: asm (DTORS_SECTION_ASM_OP); \ ! 116: func_ptr __DTOR_LIST__[2] = { (func_ptr) (-1), 0 }; ! 117: ! 118: /* A C statement (sans semicolon) to output an element in the table of ! 119: global destructors. */ ! 120: ! 121: #undef ASM_OUTPUT_DESTRUCTOR ! 122: #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ ! 123: do { \ ! 124: fini_section (); \ ! 125: fprintf (FILE, "%s\t ", ASM_LONG); \ ! 126: assemble_name (FILE, NAME); \ ! 127: fprintf (FILE, ",0\n"); \ ! 128: } while (0) ! 129: ! 130: ! 131: /* On clix crt1.o first calls init code and then sets environ and a valid ! 132: chrclass. Unfortunately stdio routines bomb with unset chrclass. ! 133: Therefore we set chrclass prior to calling global constructors. */ ! 134: ! 135: #undef DO_GLOBAL_CTORS_BODY ! 136: #define DO_GLOBAL_CTORS_BODY \ ! 137: do { \ ! 138: func_ptr *p, *beg = alloca (0); \ ! 139: _setchrclass (0); \ ! 140: for (p = beg; *p; p+=2) \ ! 141: ; \ ! 142: while (p != beg) \ ! 143: { p-= 2; (*p) (); } \ ! 144: } while (0) ! 145: ! 146: ! 147: #undef DO_GLOBAL_DTORS_BODY ! 148: #define DO_GLOBAL_DTORS_BODY \ ! 149: func_ptr *f = &__DTOR_LIST__[2]; /* 0,1 contains -1,0 */ \ ! 150: int n = 0; \ ! 151: while (*f) \ ! 152: { \ ! 153: f+= 2; /* skip over alignment 0 */ \ ! 154: n++; \ ! 155: } \ ! 156: f -= 2; \ ! 157: while (--n >= 0) \ ! 158: { \ ! 159: (*f) (); \ ! 160: f-= 2; /* skip over alignment 0 */ \ ! 161: } ! 162: ! 163:
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