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1.1.1.3 root 1: /* Definitions of target machine for GNU compiler. Clipper/Clix version.
2: Copyright (C) 1988, 1993 Free Software Foundation, Inc.
1.1 root 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
1.1.1.4 ! root 18: the Free Software Foundation, 59 Temple Place - Suite 330,
! 19: Boston, MA 02111-1307, USA. */
1.1 root 20:
21: #include "clipper/clipper.h"
22:
23: #include "svr3.h"
24:
25: /* Names to predefine in the preprocessor for this target machine. */
26:
1.1.1.2 root 27: #define CPP_PREDEFINES "-Dclipper -Dunix -Asystem(unix) -Asystem(svr3) -Acpu(clipper) -Amachine(clipper)"
1.1 root 28:
29: #undef STARTFILE_SPEC
30: #define STARTFILE_SPEC \
31: "%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} crtbegin.o%s"
32:
33: #undef ENDFILE_SPEC
34: #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
35:
36: #undef LIB_SPEC
37:
38: #undef HAVE_ATEXIT
39: #define HAVE_ATEXIT
40:
41: #define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \
1.1.1.3 root 42: do { \
1.1 root 43: unsigned char *s; \
44: int i; \
45: for (i = 0, s = (unsigned char *)(PTR); i < (LEN); s++, i++) \
46: { \
47: if ((i % 8) == 0) \
48: fputs ("\n\t.byte\t", (FILE)); \
49: fprintf ((FILE), "%s0x%x", (i%8?",":""), (unsigned)*s); \
50: } \
51: fputs ("\n", (FILE)); \
1.1.1.3 root 52: } while (0)
1.1 root 53:
54: #undef ASM_OUTPUT_DOUBLE
55: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
56: { \
57: union { int i[2]; double d; } _d_; \
58: _d_.d = VALUE; \
59: fprintf (FILE, "\t.long 0x%08x,0x%08x\n", _d_.i[0],_d_.i[1]); \
60: }
61:
62: #undef ASM_OUTPUT_FLOAT
63: #define ASM_OUTPUT_FLOAT(FILE,VALUE) \
64: { \
65: union { int i; float f; } _f_; \
66: _f_.f = VALUE; \
67: fprintf (FILE, "\t.long 0x%08x\n", _f_.i); \
68: }
69:
70: /* This is how to output an assembler line
71: that says to advance the location counter
72: to a multiple of 2**LOG bytes. */
73:
74: #define ASM_OUTPUT_ALIGN(FILE,LOG) \
75: fprintf(FILE, "\t.align %d\n", 1 << (LOG))
76:
77:
78: #define ASM_LONG ".long"
79: #define BSS_SECTION_ASM_OP ".bss"
80: #undef INIT_SECTION_ASM_OP
81: #define INIT_SECTION_ASM_OP ".section .init,\"x\""
82:
83:
84: /* Define a few machine-specific details of the implementation of
85: constructors.
86:
87: The __CTORS_LIST__ goes in the .init section. Define CTOR_LIST_BEGIN
88: and CTOR_LIST_END to contribute to the .init section an instruction to
89: push a word containing 0 (or some equivalent of that).
90:
91: ASM_OUTPUT_CONSTRUCTOR should be defined to push the address of the
92: constructor. */
93:
94: #define CTOR_LIST_BEGIN \
95: asm (INIT_SECTION_ASM_OP); \
96: asm ("subq $8,sp"); \
97: asm ("loadq $0,r0"); \
98: asm ("storw r0,(sp)")
99:
100: /* don't need end marker */
101:
102: #undef CTOR_LIST_END
103:
104: #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
105: do { \
106: init_section (); \
107: fputs ("\tloada ", FILE); \
108: assemble_name (FILE, NAME); \
109: fputs (",r0\n\tsubq $8,sp\n\tstorw r0,(sp)\n", FILE); \
110: } while (0)
111:
112:
113: /* fini psect is 8 aligned */
114:
115: #define DTOR_LIST_BEGIN \
116: asm (DTORS_SECTION_ASM_OP); \
117: func_ptr __DTOR_LIST__[2] = { (func_ptr) (-1), 0 };
118:
119: /* A C statement (sans semicolon) to output an element in the table of
120: global destructors. */
121:
122: #undef ASM_OUTPUT_DESTRUCTOR
123: #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
124: do { \
125: fini_section (); \
126: fprintf (FILE, "%s\t ", ASM_LONG); \
127: assemble_name (FILE, NAME); \
128: fprintf (FILE, ",0\n"); \
129: } while (0)
130:
131:
132: /* On clix crt1.o first calls init code and then sets environ and a valid
133: chrclass. Unfortunately stdio routines bomb with unset chrclass.
134: Therefore we set chrclass prior to calling global constructors. */
135:
136: #undef DO_GLOBAL_CTORS_BODY
137: #define DO_GLOBAL_CTORS_BODY \
138: do { \
139: func_ptr *p, *beg = alloca (0); \
140: _setchrclass (0); \
141: for (p = beg; *p; p+=2) \
142: ; \
143: while (p != beg) \
144: { p-= 2; (*p) (); } \
145: } while (0)
146:
147:
148: #undef DO_GLOBAL_DTORS_BODY
149: #define DO_GLOBAL_DTORS_BODY \
150: func_ptr *f = &__DTOR_LIST__[2]; /* 0,1 contains -1,0 */ \
151: int n = 0; \
152: while (*f) \
153: { \
154: f+= 2; /* skip over alignment 0 */ \
155: n++; \
156: } \
157: f -= 2; \
158: while (--n >= 0) \
159: { \
160: (*f) (); \
161: f-= 2; /* skip over alignment 0 */ \
162: }
163:
164:
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