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1.1 root 1: /* Bytecode definitions for GNU C-compiler.
2: Copyright (C) 1993 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:
21: extern int output_bytecode;
22: extern int stack_depth;
23: extern int max_stack_depth;
24:
25: /* Emit DI constant according to target machine word ordering */
26:
27: #ifdef WORD_HIGH_ENDIAN
28:
29: #define bc_emit_bytecode_DI_const(CST) \
30: { int opcode; \
31: opcode = TREE_INT_CST_HIGH (CST); \
32: bc_emit_bytecode_const ((char *) &opcode, sizeof opcode); \
33: opcode = TREE_INT_CST_LOW (CST); \
34: bc_emit_bytecode_const ((char *) &opcode, sizeof opcode); \
35: }
36:
37: #else
38:
39: #define bc_emit_bytecode_DI_const(CST) \
40: { int opcode; \
41: opcode = TREE_INT_CST_LOW (CST); \
42: bc_emit_bytecode_const ((char *) &opcode, sizeof opcode); \
43: opcode = TREE_INT_CST_HIGH (CST); \
44: bc_emit_bytecode_const ((char *) &opcode, sizeof opcode); \
45: }
46:
47: #endif
48:
49:
50: extern void bc_expand_expr ();
51: extern void bc_output_data_constructor ();
52: extern void bc_store_field ();
53: extern void bc_load_bit_field ();
54: extern void bc_store_bit_field ();
55: extern void bc_push_offset_and_size ();
56: extern void bc_init_mode_to_code_map ();
57:
58: /* These are just stubs, so the compiler will compile for targets
59: that aren't yet supported by the bytecode generator. */
60:
61: #ifndef TARGET_SUPPORTS_BYTECODE
62:
63: #define MACHINE_SEG_ALIGN 1
64: #define INT_ALIGN 1
65: #define PTR_ALIGN 1
66: #define NAMES_HAVE_UNDERSCORES
67: #define BC_NOP (0)
68: #define BC_GLOBALIZE_LABEL(FP, NAME) BC_NOP
69: #define BC_OUTPUT_COMMON(FP, NAME, SIZE, ROUNDED) BC_NOP
70: #define BC_OUTPUT_LOCAL(FP, NAME, SIZE, ROUNDED) BC_NOP
71: #define BC_OUTPUT_ALIGN(FP, ALIGN) BC_NOP
72: #define BC_OUTPUT_LABEL(FP, NAME) BC_NOP
73: #define BC_OUTPUT_SKIP(FP, SIZE) BC_NOP
74: #define BC_OUTPUT_LABELREF(FP, NAME) BC_NOP
75: #define BC_OUTPUT_FLOAT(FP, VAL) BC_NOP
76: #define BC_OUTPUT_DOUBLE(FP, VAL) BC_NOP
77: #define BC_OUTPUT_BYTE(FP, VAL) BC_NOP
78: #define BC_OUTPUT_FILE ASM_OUTPUT_FILE
79: #define BC_OUTPUT_ASCII ASM_OUTPUT_ASCII
80: #define BC_OUTPUT_IDENT ASM_OUTPUT_IDENT
81: #define BCXSTR(RTX) ((RTX)->bc_label)
82: #define BC_WRITE_FILE(FP) BC_NOP
83: #define BC_WRITE_SEGSYM(SEGSYM, FP) BC_NOP
84: #define BC_WRITE_RELOC_ENTRY(SEGRELOC, FP, OFFSET) BC_NOP
85: #define BC_START_BYTECODE_LINE(FP) BC_NOP
86: #define BC_WRITE_BYTECODE(SEP, VAL, FP) BC_NOP
87: #define BC_WRITE_RTL(R, FP) BC_NOP
88: #define BC_EMIT_TRAMPOLINE(TRAMPSEG, CALLINFO) BC_NOP
89: #define VALIDATE_STACK BC_NOP
90:
91: #endif /* !TARGET_SUPPORTS_BYTECODE */
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