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expread.c
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C/C++ Source or Header
|
1993-10-04
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80KB
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2,840 lines
/* A Bison parser, made from expread.y with Bison version GNU Bison version 1.22
*/
#define YYBISON 1 /* Identify Bison output. */
#define INT 258
#define CHAR 259
#define UINT 260
#define FLOAT 261
#define NAME 262
#define TYPENAME 263
#define BLOCKNAME 264
#define STRING 265
#define STRUCT 266
#define UNION 267
#define ENUM 268
#define SIZEOF 269
#define UNSIGNED 270
#define COLONCOLON 271
#define SIGNED 272
#define LONG 273
#define SHORT 274
#define INT_KEYWORD 275
#define DOUBLE 276
#define LAST 277
#define REGNAME 278
#define VARIABLE 279
#define ASSIGN_MODIFY 280
#define THIS 281
#define ABOVE_COMMA 282
#define OR 283
#define AND 284
#define EQUAL 285
#define NOTEQUAL 286
#define LEQ 287
#define GEQ 288
#define LSH 289
#define RSH 290
#define UNARY 291
#define INCREMENT 292
#define DECREMENT 293
#define ARROW 294
#line 29 "expread.y"
#include <stdio.h>
#include "defs.h"
#include "param.h"
#include "symtab.h"
#include "frame.h"
#include "expression.h"
#ifdef atarist
#include "gnu-out.h"
#else
#include <a.out.h>
#endif
static struct expression *expout;
static int expout_size;
static int expout_ptr;
static int yylex ();
static void yyerror ();
static void write_exp_elt ();
static void write_exp_elt_opcode ();
static void write_exp_elt_sym ();
static void write_exp_elt_longcst ();
static void write_exp_elt_dblcst ();
static void write_exp_elt_type ();
static void write_exp_elt_intern ();
static void write_exp_string ();
static void start_arglist ();
static int end_arglist ();
static void free_funcalls ();
static char *copy_name ();
/* If this is nonzero, this block is used as the lexical context
for symbol names. */
static struct block *expression_context_block;
/* The innermost context required by the stack and register variables
we've encountered so far. */
struct block *innermost_block;
/* The block in which the most recently discovered symbol was found. */
struct block *block_found;
/* Number of arguments seen so far in innermost function call. */
static int arglist_len;
/* Data structure for saving values of arglist_len
for function calls whose arguments contain other function calls. */
struct funcall
{
struct funcall *next;
int arglist_len;
};
struct funcall *funcall_chain;
/* This kind of datum is used to represent the name
of a symbol token. */
struct stoken
{
char *ptr;
int length;
};
/* For parsing of complicated types.
An array should be preceded in the list by the size of the array. */
enum type_pieces
{tp_end = -1, tp_pointer, tp_reference, tp_array, tp_function};
static enum type_pieces *type_stack;
static int type_stack_depth, type_stack_size;
static void push_type ();
static enum type_pieces pop_type ();
/* Allow debugging of parsing. */
#define YYDEBUG 1
#line 115 "expread.y"
typedef union
{
LONGEST lval;
unsigned LONGEST ulval;
double dval;
struct symbol *sym;
struct type *tval;
struct stoken sval;
int voidval;
struct block *bval;
enum exp_opcode opcode;
struct internalvar *ivar;
struct type **tvec;
int *ivec;
} YYSTYPE;
#ifndef YYLTYPE
typedef
struct yyltype
{
int timestamp;
int first_line;
int first_column;
int last_line;
int last_column;
char *text;
}
yyltype;
#define YYLTYPE yyltype
#endif
#include <stdio.h>
#ifndef __cplusplus
#ifndef __STDC__
#define const
#endif
#endif
#define YYFINAL 191
#define YYFLAG -32768
#define YYNTBASE 64
#define YYTRANSLATE(x) ((unsigned)(x) <= 294 ? yytranslate[x] : 82)
static const char yytranslate[] = { 0,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 57, 2, 2, 2, 49, 35, 2, 56,
60, 47, 45, 27, 46, 54, 48, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 63, 2, 38,
29, 39, 30, 44, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
55, 2, 59, 34, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 61, 33, 62, 58, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
26, 28, 31, 32, 36, 37, 40, 41, 42, 43,
50, 51, 52, 53
};
#if YYDEBUG != 0
static const short yyprhs[] = { 0,
0, 2, 4, 8, 11, 14, 17, 20, 23, 26,
29, 32, 35, 38, 42, 47, 51, 56, 61, 62,
68, 69, 71, 75, 80, 85, 89, 93, 97, 101,
105, 109, 113, 117, 121, 125, 129, 133, 137, 141,
145, 149, 153, 157, 161, 165, 171, 175, 179, 181,
183, 185, 187, 189, 191, 193, 195, 200, 202, 204,
206, 210, 214, 218, 221, 223, 225, 228, 230, 233,
235, 239, 242, 244, 247, 249, 252, 256, 259, 261,
265, 272, 281, 291, 293, 295, 297, 300, 302, 305,
309, 313, 318, 321, 325, 327, 330, 333, 336, 339,
342, 344, 347, 349, 351, 353, 355, 357, 359, 363,
365, 367, 369, 371
};
static const short yyrhs[] = { 65,
0, 66, 0, 65, 27, 66, 0, 47, 66, 0,
35, 66, 0, 46, 66, 0, 57, 66, 0, 58,
66, 0, 51, 66, 0, 52, 66, 0, 66, 51,
0, 66, 52, 0, 14, 66, 0, 66, 53, 80,
0, 66, 53, 47, 66, 0, 66, 54, 80, 0,
66, 54, 47, 66, 0, 66, 55, 65, 59, 0,
0, 66, 56, 67, 68, 60, 0, 0, 66, 0,
68, 27, 66, 0, 61, 76, 62, 66, 0, 56,
76, 60, 66, 0, 56, 65, 60, 0, 66, 44,
66, 0, 66, 47, 66, 0, 66, 48, 66, 0,
66, 49, 66, 0, 66, 45, 66, 0, 66, 46,
66, 0, 66, 42, 66, 0, 66, 43, 66, 0,
66, 36, 66, 0, 66, 37, 66, 0, 66, 40,
66, 0, 66, 41, 66, 0, 66, 38, 66, 0,
66, 39, 66, 0, 66, 35, 66, 0, 66, 34,
66, 0, 66, 33, 66, 0, 66, 32, 66, 0,
66, 31, 66, 0, 66, 30, 66, 63, 66, 0,
66, 29, 66, 0, 66, 25, 66, 0, 3, 0,
5, 0, 4, 0, 6, 0, 70, 0, 22, 0,
23, 0, 24, 0, 14, 56, 76, 60, 0, 10,
0, 26, 0, 9, 0, 69, 16, 80, 0, 69,
16, 80, 0, 77, 16, 80, 0, 16, 80, 0,
81, 0, 77, 0, 77, 72, 0, 47, 0, 47,
72, 0, 73, 0, 56, 72, 60, 0, 73, 74,
0, 74, 0, 73, 75, 0, 75, 0, 55, 59,
0, 55, 3, 59, 0, 56, 60, 0, 71, 0,
77, 16, 47, 0, 76, 56, 77, 16, 47, 60,
0, 76, 56, 77, 16, 47, 60, 56, 60, 0,
76, 56, 77, 16, 47, 60, 56, 79, 60, 0,
8, 0, 20, 0, 18, 0, 18, 18, 0, 19,
0, 18, 20, 0, 18, 18, 20, 0, 15, 18,
20, 0, 15, 18, 18, 20, 0, 19, 20, 0,
15, 19, 20, 0, 21, 0, 18, 21, 0, 11,
80, 0, 12, 80, 0, 13, 80, 0, 15, 78,
0, 15, 0, 17, 78, 0, 17, 0, 8, 0,
20, 0, 18, 0, 19, 0, 76, 0, 79, 27,
76, 0, 7, 0, 9, 0, 8, 0, 7, 0,
9, 0
};
#endif
#if YYDEBUG != 0
static const short yyrline[] = { 0,
194, 198, 199, 204, 207, 210, 214, 218, 222, 226,
230, 234, 238, 242, 248, 252, 258, 262, 266, 270,
276, 279, 283, 287, 293, 299, 305, 309, 313, 317,
321, 325, 329, 333, 337, 341, 345, 349, 353, 357,
361, 365, 369, 373, 377, 381, 385, 389, 395, 415,
436, 443, 450, 453, 459, 465, 471, 478, 485, 492,
513, 522, 533, 546, 592, 669, 670, 705, 707, 709,
712, 714, 719, 725, 727, 731, 733, 737, 741, 742,
744, 746, 749, 756, 759, 761, 763, 772, 774, 776,
785, 787, 796, 798, 800, 802, 811, 814, 817, 820,
822, 824, 827, 831, 832, 837, 842, 850, 855, 862,
863, 864, 867, 868
};
static const char * const yytname[] = { "$","error","$illegal.","INT","CHAR",
"UINT","FLOAT","NAME","TYPENAME","BLOCKNAME","STRING","STRUCT","UNION","ENUM",
"SIZEOF","UNSIGNED","COLONCOLON","SIGNED","LONG","SHORT","INT_KEYWORD","DOUBLE",
"LAST","REGNAME","VARIABLE","ASSIGN_MODIFY","THIS","','","ABOVE_COMMA","'='",
"'?'","OR","AND","'|'","'^'","'&'","EQUAL","NOTEQUAL","'<'","'>'","LEQ","GEQ",
"LSH","RSH","'@'","'+'","'-'","'*'","'/'","'%'","UNARY","INCREMENT","DECREMENT",
"ARROW","'.'","'['","'('","'!'","'~'","']'","')'","'{'","'}'","':'","start",
"exp1","exp","@1","arglist","block","variable","ptype","abs_decl","direct_abs_decl",
"array_mod","func_mod","type","typebase","typename","nonempty_typelist","name",
"name_not_typename",""
};
#endif
static const short yyr1[] = { 0,
64, 65, 65, 66, 66, 66, 66, 66, 66, 66,
66, 66, 66, 66, 66, 66, 66, 66, 67, 66,
68, 68, 68, 66, 66, 66, 66, 66, 66, 66,
66, 66, 66, 66, 66, 66, 66, 66, 66, 66,
66, 66, 66, 66, 66, 66, 66, 66, 66, 66,
66, 66, 66, 66, 66, 66, 66, 66, 66, 69,
69, 70, 70, 70, 70, 71, 71, 72, 72, 72,
73, 73, 73, 73, 73, 74, 74, 75, 76, 76,
76, 76, 76, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 78, 78, 78, 78, 79, 79, 80,
80, 80, 81, 81
};
static const short yyr2[] = { 0,
1, 1, 3, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 3, 4, 3, 4, 4, 0, 5,
0, 1, 3, 4, 4, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 5, 3, 3, 1, 1,
1, 1, 1, 1, 1, 1, 4, 1, 1, 1,
3, 3, 3, 2, 1, 1, 2, 1, 2, 1,
3, 2, 1, 2, 1, 2, 3, 2, 1, 3,
6, 8, 9, 1, 1, 1, 2, 1, 2, 3,
3, 4, 2, 3, 1, 2, 2, 2, 2, 2,
1, 2, 1, 1, 1, 1, 1, 1, 3, 1,
1, 1, 1, 1
};
static const short yydefact[] = { 0,
49, 51, 50, 52, 113, 84, 114, 58, 0, 0,
0, 0, 101, 0, 103, 86, 88, 85, 95, 54,
55, 56, 59, 0, 0, 0, 0, 0, 0, 0,
0, 0, 1, 2, 0, 53, 0, 65, 110, 112,
111, 97, 98, 99, 0, 13, 104, 106, 107, 105,
100, 64, 106, 107, 102, 87, 89, 96, 93, 5,
6, 4, 9, 10, 0, 79, 0, 66, 7, 8,
0, 66, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 11, 12, 0, 0, 0,
19, 0, 0, 0, 0, 91, 94, 90, 26, 0,
0, 0, 68, 0, 0, 67, 70, 73, 75, 0,
0, 3, 48, 47, 0, 45, 44, 43, 42, 41,
35, 36, 39, 40, 37, 38, 33, 34, 27, 31,
32, 28, 29, 30, 0, 14, 0, 16, 0, 21,
62, 63, 57, 92, 0, 25, 80, 69, 0, 76,
78, 0, 0, 72, 74, 24, 0, 15, 17, 18,
22, 0, 0, 77, 71, 46, 0, 20, 0, 23,
81, 0, 82, 108, 0, 0, 83, 109, 0, 0,
0
};
static const short yydefgoto[] = { 189,
65, 34, 150, 172, 35, 36, 66, 116, 117, 118,
119, 67, 37, 51, 185, 152, 38
};
static const short yypact[] = { 163,
-32768,-32768,-32768,-32768,-32768,-32768, -13,-32768, 137, 137,
137, 222, 131, 137, 198, 82, 8,-32768,-32768,-32768,
-32768,-32768,-32768, 163, 163, 163, 163, 163, 163, 163,
163, 105, 6, 350, 18,-32768, 37,-32768,-32768,-32768,
-32768,-32768,-32768,-32768, 163, 515,-32768, 11, 40,-32768,
-32768,-32768,-32768,-32768,-32768, 85,-32768,-32768,-32768, 515,
515, 515, 515, 515, -22,-32768, -50, -7, 515, 515,
-45, 39, 163, 163, 163, 163, 163, 163, 163, 163,
163, 163, 163, 163, 163, 163, 163, 163, 163, 163,
163, 163, 163, 163, 163,-32768,-32768, 43, 80, 163,
-32768, 137, 137, -30, 89,-32768,-32768,-32768,-32768, 105,
163, 84, 51, -1, 87,-32768, -9,-32768,-32768, 163,
12, 350, 350, 350, 315, 402, 275, 425, 447, 468,
487, 487, 148, 148, 148, 148, 207, 207, 499, 509,
509, 515, 515, 515, 163,-32768, 163,-32768, -2, 163,
88,-32768, 281,-32768, 94, 515,-32768,-32768, 55,-32768,
-32768, 59, 61,-32768,-32768, 515, 163, 515, 515,-32768,
350, 69, 81,-32768,-32768, 377, 163,-32768, 72, 350,
92, 24,-32768, 96, 70, 105,-32768, 96, 136, 140,
-32768
};
static const short yypgoto[] = {-32768,
1, -12,-32768,-32768,-32768,-32768,-32768, -59,-32768, 20,
36, -24, -25, 139,-32768, 13,-32768
};
#define YYLAST 571
static const short yytable[] = { 46,
33, 159, -60, 68, 73, 110, 72, 71, 112, 111,
110, 60, 61, 62, 63, 64, 120, 69, 70, 68,
104, 42, 43, 44, 73, 110, 52, 59, 105, 153,
106, 6, 73, 102, 9, 10, 11, 109, 13, 113,
15, 16, 17, 18, 19, 114, 163, 114, 115, 39,
40, 41, 103, 158, 121, 162, 170, 160, 157, 107,
122, 123, 124, 125, 126, 127, 128, 129, 130, 131,
132, 133, 134, 135, 136, 137, 138, 139, 140, 141,
142, 143, 144, 183, 155, 113, 39, 40, 41, 145,
39, 40, 41, 114, 115, 177, 186, 113, 156, 56,
149, 57, 58, -61, 108, 114, 115, 166, 154, 173,
146, 148, 6, 174, 151, 9, 10, 11, 175, 13,
161, 15, 16, 17, 18, 19, 147, 179, 178, 187,
157, 181, 168, 113, 169, 190, 164, 171, 47, 191,
156, 114, 115, 39, 40, 41, 161, 182, 48, 49,
50, 110, 165, 55, 176, 0, 72, 184, 0, 0,
72, 188, 0, 0, 180, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 0, 23, 88,
89, 90, 91, 92, 93, 94, 95, 24, 96, 97,
98, 99, 100, 101, 0, 47, 0, 0, 25, 26,
0, 0, 0, 27, 28, 53, 54, 50, 29, 30,
31, 0, 0, 32, 1, 2, 3, 4, 5, 6,
7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 0, 23, 0, 0,
90, 91, 92, 93, 94, 95, 24, 96, 97, 98,
99, 100, 101, 0, 0, 0, 0, 25, 26, 0,
0, 0, 27, 28, 0, 0, 0, 45, 30, 31,
0, 0, 32, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
18, 19, 20, 21, 22, 0, 23, 79, 80, 81,
82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
92, 93, 94, 95, 0, 96, 97, 98, 99, 100,
101, 27, 28, 0, 0, 0, 29, 30, 31, 74,
0, 32, 0, 75, 76, 77, 78, 79, 80, 81,
82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
92, 93, 94, 95, 0, 96, 97, 98, 99, 100,
101, 0, 0, 0, 74, 0, 0, 167, 75, 76,
77, 78, 79, 80, 81, 82, 83, 84, 85, 86,
87, 88, 89, 90, 91, 92, 93, 94, 95, 0,
96, 97, 98, 99, 100, 101, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
90, 91, 92, 93, 94, 95, 0, 96, 97, 98,
99, 100, 101, 78, 79, 80, 81, 82, 83, 84,
85, 86, 87, 88, 89, 90, 91, 92, 93, 94,
95, 0, 96, 97, 98, 99, 100, 101, 80, 81,
82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
92, 93, 94, 95, 0, 96, 97, 98, 99, 100,
101, 81, 82, 83, 84, 85, 86, 87, 88, 89,
90, 91, 92, 93, 94, 95, 0, 96, 97, 98,
99, 100, 101, 82, 83, 84, 85, 86, 87, 88,
89, 90, 91, 92, 93, 94, 95, 0, 96, 97,
98, 99, 100, 101, 84, 85, 86, 87, 88, 89,
90, 91, 92, 93, 94, 95, 0, 96, 97, 98,
99, 100, 101, 91, 92, 93, 94, 95, 0, 96,
97, 98, 99, 100, 101, 93, 94, 95, 0, 96,
97, 98, 99, 100, 101, 96, 97, 98, 99, 100,
101
};
static const short yycheck[] = { 12,
0, 3, 16, 29, 27, 56, 32, 32, 16, 60,
56, 24, 25, 26, 27, 28, 62, 30, 31, 45,
45, 9, 10, 11, 27, 56, 14, 20, 18, 60,
20, 8, 27, 16, 11, 12, 13, 60, 15, 47,
17, 18, 19, 20, 21, 55, 56, 55, 56, 7,
8, 9, 16, 113, 16, 115, 59, 59, 47, 20,
73, 74, 75, 76, 77, 78, 79, 80, 81, 82,
83, 84, 85, 86, 87, 88, 89, 90, 91, 92,
93, 94, 95, 60, 110, 47, 7, 8, 9, 47,
7, 8, 9, 55, 56, 27, 27, 47, 111, 18,
100, 20, 21, 16, 20, 55, 56, 120, 20, 16,
98, 99, 8, 59, 102, 11, 12, 13, 60, 15,
60, 17, 18, 19, 20, 21, 47, 47, 60, 60,
47, 60, 145, 47, 147, 0, 117, 150, 8, 0,
153, 55, 56, 7, 8, 9, 60, 56, 18, 19,
20, 56, 117, 15, 167, -1, 182, 182, -1, -1,
186, 186, -1, -1, 177, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
18, 19, 20, 21, 22, 23, 24, -1, 26, 42,
43, 44, 45, 46, 47, 48, 49, 35, 51, 52,
53, 54, 55, 56, -1, 8, -1, -1, 46, 47,
-1, -1, -1, 51, 52, 18, 19, 20, 56, 57,
58, -1, -1, 61, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
19, 20, 21, 22, 23, 24, -1, 26, -1, -1,
44, 45, 46, 47, 48, 49, 35, 51, 52, 53,
54, 55, 56, -1, -1, -1, -1, 46, 47, -1,
-1, -1, 51, 52, -1, -1, -1, 56, 57, 58,
-1, -1, 61, 3, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, -1, 26, 33, 34, 35,
36, 37, 38, 39, 40, 41, 42, 43, 44, 45,
46, 47, 48, 49, -1, 51, 52, 53, 54, 55,
56, 51, 52, -1, -1, -1, 56, 57, 58, 25,
-1, 61, -1, 29, 30, 31, 32, 33, 34, 35,
36, 37, 38, 39, 40, 41, 42, 43, 44, 45,
46, 47, 48, 49, -1, 51, 52, 53, 54, 55,
56, -1, -1, -1, 25, -1, -1, 63, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, -1,
51, 52, 53, 54, 55, 56, 30, 31, 32, 33,
34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 47, 48, 49, -1, 51, 52, 53,
54, 55, 56, 32, 33, 34, 35, 36, 37, 38,
39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
49, -1, 51, 52, 53, 54, 55, 56, 34, 35,
36, 37, 38, 39, 40, 41, 42, 43, 44, 45,
46, 47, 48, 49, -1, 51, 52, 53, 54, 55,
56, 35, 36, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 47, 48, 49, -1, 51, 52, 53,
54, 55, 56, 36, 37, 38, 39, 40, 41, 42,
43, 44, 45, 46, 47, 48, 49, -1, 51, 52,
53, 54, 55, 56, 38, 39, 40, 41, 42, 43,
44, 45, 46, 47, 48, 49, -1, 51, 52, 53,
54, 55, 56, 45, 46, 47, 48, 49, -1, 51,
52, 53, 54, 55, 56, 47, 48, 49, -1, 51,
52, 53, 54, 55, 56, 51, 52, 53, 54, 55,
56
};
/* -*-C-*- Note some compilers choke on comments on `#line' lines. */
#line 3 "/gnu/lib/bison.simple"
/* Skeleton output parser for bison,
Copyright (C) 1984, 1989, 1990 Bob Corbett and Richard Stallman
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef alloca
#ifdef __GNUC__
#define alloca __builtin_alloca
#else /* not GNU C. */
#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi)
#include <alloca.h>
#else /* not sparc */
#if defined (MSDOS) && !defined (__TURBOC__)
#include <malloc.h>
#else /* not MSDOS, or __TURBOC__ */
#if defined(_AIX)
#include <malloc.h>
#pragma alloca
#else /* not MSDOS, __TURBOC__, or _AIX */
#ifdef __hpux
#ifdef __cplusplus
extern "C" {
void *alloca (unsigned int);
};
#else /* not __cplusplus */
void *alloca ();
#endif /* not __cplusplus */
#endif /* __hpux */
#endif /* not _AIX */
#endif /* not MSDOS, or __TURBOC__ */
#endif /* not sparc. */
#endif /* not GNU C. */
#endif /* alloca not defined. */
/* This is the parser code that is written into each bison parser
when the %semantic_parser declaration is not specified in the grammar.
It was written by Richard Stallman by simplifying the hairy parser
used when %semantic_parser is specified. */
/* Note: there must be only one dollar sign in this file.
It is replaced by the list of actions, each action
as one case of the switch. */
#define yyerrok (yyerrstatus = 0)
#define yyclearin (yychar = YYEMPTY)
#define YYEMPTY -2
#define YYEOF 0
#define YYACCEPT return(0)
#define YYABORT return(1)
#define YYERROR goto yyerrlab1
/* Like YYERROR except do call yyerror.
This remains here temporarily to ease the
transition to the new meaning of YYERROR, for GCC.
Once GCC version 2 has supplanted version 1, this can go. */
#define YYFAIL goto yyerrlab
#define YYRECOVERING() (!!yyerrstatus)
#define YYBACKUP(token, value) \
do \
if (yychar == YYEMPTY && yylen == 1) \
{ yychar = (token), yylval = (value); \
yychar1 = YYTRANSLATE (yychar); \
YYPOPSTACK; \
goto yybackup; \
} \
else \
{ yyerror ("syntax error: cannot back up"); YYERROR; } \
while (0)
#define YYTERROR 1
#define YYERRCODE 256
#ifndef YYPURE
#define YYLEX yylex()
#endif
#ifdef YYPURE
#ifdef YYLSP_NEEDED
#define YYLEX yylex(&yylval, &yylloc)
#else
#define YYLEX yylex(&yylval)
#endif
#endif
/* If nonreentrant, generate the variables here */
#ifndef YYPURE
int yychar; /* the lookahead symbol */
YYSTYPE yylval; /* the semantic value of the */
/* lookahead symbol */
#ifdef YYLSP_NEEDED
YYLTYPE yylloc; /* location data for the lookahead */
/* symbol */
#endif
int yynerrs; /* number of parse errors so far */
#endif /* not YYPURE */
#if YYDEBUG != 0
int yydebug; /* nonzero means print parse trace */
/* Since this is uninitialized, it does not stop multiple parsers
from coexisting. */
#endif
/* YYINITDEPTH indicates the initial size of the parser's stacks */
#ifndef YYINITDEPTH
#define YYINITDEPTH 200
#endif
/* YYMAXDEPTH is the maximum size the stacks can grow to
(effective only if the built-in stack extension method is used). */
#if YYMAXDEPTH == 0
#undef YYMAXDEPTH
#endif
#ifndef YYMAXDEPTH
#define YYMAXDEPTH 10000
#endif
/* Prevent warning if -Wstrict-prototypes. */
#ifdef __GNUC__
int yyparse (void);
#endif
#if __GNUC__ > 1 /* GNU C and GNU C++ define this. */
#define __yy_bcopy(FROM,TO,COUNT) __builtin_memcpy(TO,FROM,COUNT)
#else /* not GNU C or C++ */
#ifndef __cplusplus
/* This is the most reliable way to avoid incompatibilities
in available built-in functions on various systems. */
static void
__yy_bcopy (from, to, count)
char *from;
char *to;
int count;
{
register char *f = from;
register char *t = to;
register int i = count;
while (i-- > 0)
*t++ = *f++;
}
#else /* __cplusplus */
/* This is the most reliable way to avoid incompatibilities
in available built-in functions on various systems. */
static void
__yy_bcopy (char *from, char *to, int count)
{
register char *f = from;
register char *t = to;
register int i = count;
while (i-- > 0)
*t++ = *f++;
}
#endif
#endif
#line 184 "/gnu/lib/bison.simple"
int
yyparse()
{
register int yystate;
register int yyn;
register short *yyssp;
register YYSTYPE *yyvsp;
int yyerrstatus; /* number of tokens to shift before error messages enabled */
int yychar1 = 0; /* lookahead token as an internal (translated) token number */
short yyssa[YYINITDEPTH]; /* the state stack */
YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */
short *yyss = yyssa; /* refer to the stacks thru separate pointers */
YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */
#ifdef YYLSP_NEEDED
YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */
YYLTYPE *yyls = yylsa;
YYLTYPE *yylsp;
#define YYPOPSTACK (yyvsp--, yyssp--, yylsp--)
#else
#define YYPOPSTACK (yyvsp--, yyssp--)
#endif
int yystacksize = YYINITDEPTH;
#ifdef YYPURE
int yychar;
YYSTYPE yylval;
int yynerrs;
#ifdef YYLSP_NEEDED
YYLTYPE yylloc;
#endif
#endif
YYSTYPE yyval; /* the variable used to return */
/* semantic values from the action */
/* routines */
int yylen;
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Starting parse\n");
#endif
yystate = 0;
yyerrstatus = 0;
yynerrs = 0;
yychar = YYEMPTY; /* Cause a token to be read. */
/* Initialize stack pointers.
Waste one element of value and location stack
so that they stay on the same level as the state stack.
The wasted elements are never initialized. */
yyssp = yyss - 1;
yyvsp = yyvs;
#ifdef YYLSP_NEEDED
yylsp = yyls;
#endif
/* Push a new state, which is found in yystate . */
/* In all cases, when you get here, the value and location stacks
have just been pushed. so pushing a state here evens the stacks. */
yynewstate:
*++yyssp = yystate;
if (yyssp >= yyss + yystacksize - 1)
{
/* Give user a chance to reallocate the stack */
/* Use copies of these so that the &'s don't force the real ones into memory. */
YYSTYPE *yyvs1 = yyvs;
short *yyss1 = yyss;
#ifdef YYLSP_NEEDED
YYLTYPE *yyls1 = yyls;
#endif
/* Get the current used size of the three stacks, in elements. */
int size = yyssp - yyss + 1;
#ifdef yyoverflow
/* Each stack pointer address is followed by the size of
the data in use in that stack, in bytes. */
#ifdef YYLSP_NEEDED
/* This used to be a conditional around just the two extra args,
but that might be undefined if yyoverflow is a macro. */
yyoverflow("parser stack overflow",
&yyss1, size * sizeof (*yyssp),
&yyvs1, size * sizeof (*yyvsp),
&yyls1, size * sizeof (*yylsp),
&yystacksize);
#else
yyoverflow("parser stack overflow",
&yyss1, size * sizeof (*yyssp),
&yyvs1, size * sizeof (*yyvsp),
&yystacksize);
#endif
yyss = yyss1; yyvs = yyvs1;
#ifdef YYLSP_NEEDED
yyls = yyls1;
#endif
#else /* no yyoverflow */
/* Extend the stack our own way. */
if (yystacksize >= YYMAXDEPTH)
{
yyerror("parser stack overflow");
return 2;
}
yystacksize *= 2;
if (yystacksize > YYMAXDEPTH)
yystacksize = YYMAXDEPTH;
yyss = (short *) alloca (yystacksize * sizeof (*yyssp));
__yy_bcopy ((char *)yyss1, (char *)yyss, size * sizeof (*yyssp));
yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp));
__yy_bcopy ((char *)yyvs1, (char *)yyvs, size * sizeof (*yyvsp));
#ifdef YYLSP_NEEDED
yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp));
__yy_bcopy ((char *)yyls1, (char *)yyls, size * sizeof (*yylsp));
#endif
#endif /* no yyoverflow */
yyssp = yyss + size - 1;
yyvsp = yyvs + size - 1;
#ifdef YYLSP_NEEDED
yylsp = yyls + size - 1;
#endif
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Stack size increased to %d\n", yystacksize);
#endif
if (yyssp >= yyss + yystacksize - 1)
YYABORT;
}
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Entering state %d\n", yystate);
#endif
goto yybackup;
yybackup:
/* Do appropriate processing given the current state. */
/* Read a lookahead token if we need one and don't already have one. */
/* yyresume: */
/* First try to decide what to do without reference to lookahead token. */
yyn = yypact[yystate];
if (yyn == YYFLAG)
goto yydefault;
/* Not known => get a lookahead token if don't already have one. */
/* yychar is either YYEMPTY or YYEOF
or a valid token in external form. */
if (yychar == YYEMPTY)
{
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Reading a token: ");
#endif
yychar = YYLEX;
}
/* Convert token to internal form (in yychar1) for indexing tables with */
if (yychar <= 0) /* This means end of input. */
{
yychar1 = 0;
yychar = YYEOF; /* Don't call YYLEX any more */
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Now at end of input.\n");
#endif
}
else
{
yychar1 = YYTRANSLATE(yychar);
#if YYDEBUG != 0
if (yydebug)
{
fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]);
/* Give the individual parser a way to print the precise meaning
of a token, for further debugging info. */
#ifdef YYPRINT
YYPRINT (stderr, yychar, yylval);
#endif
fprintf (stderr, ")\n");
}
#endif
}
yyn += yychar1;
if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1)
goto yydefault;
yyn = yytable[yyn];
/* yyn is what to do for this token type in this state.
Negative => reduce, -yyn is rule number.
Positive => shift, yyn is new state.
New state is final state => don't bother to shift,
just return success.
0, or most negative number => error. */
if (yyn < 0)
{
if (yyn == YYFLAG)
goto yyerrlab;
yyn = -yyn;
goto yyreduce;
}
else if (yyn == 0)
goto yyerrlab;
if (yyn == YYFINAL)
YYACCEPT;
/* Shift the lookahead token. */
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
#endif
/* Discard the token being shifted unless it is eof. */
if (yychar != YYEOF)
yychar = YYEMPTY;
*++yyvsp = yylval;
#ifdef YYLSP_NEEDED
*++yylsp = yylloc;
#endif
/* count tokens shifted since error; after three, turn off error status. */
if (yyerrstatus) yyerrstatus--;
yystate = yyn;
goto yynewstate;
/* Do the default action for the current state. */
yydefault:
yyn = yydefact[yystate];
if (yyn == 0)
goto yyerrlab;
/* Do a reduction. yyn is the number of a rule to reduce with. */
yyreduce:
yylen = yyr2[yyn];
if (yylen > 0)
yyval = yyvsp[1-yylen]; /* implement default value of the action */
#if YYDEBUG != 0
if (yydebug)
{
int i;
fprintf (stderr, "Reducing via rule %d (line %d), ",
yyn, yyrline[yyn]);
/* Print the symbols being reduced, and their result. */
for (i = yyprhs[yyn]; yyrhs[i] > 0; i++)
fprintf (stderr, "%s ", yytname[yyrhs[i]]);
fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]);
}
#endif
switch (yyn) {
case 3:
#line 200 "expread.y"
{ write_exp_elt_opcode (BINOP_COMMA); ;
break;}
case 4:
#line 205 "expread.y"
{ write_exp_elt_opcode (UNOP_IND); ;
break;}
case 5:
#line 208 "expread.y"
{ write_exp_elt_opcode (UNOP_ADDR); ;
break;}
case 6:
#line 211 "expread.y"
{ write_exp_elt_opcode (UNOP_NEG); ;
break;}
case 7:
#line 215 "expread.y"
{ write_exp_elt_opcode (UNOP_ZEROP); ;
break;}
case 8:
#line 219 "expread.y"
{ write_exp_elt_opcode (UNOP_LOGNOT); ;
break;}
case 9:
#line 223 "expread.y"
{ write_exp_elt_opcode (UNOP_PREINCREMENT); ;
break;}
case 10:
#line 227 "expread.y"
{ write_exp_elt_opcode (UNOP_PREDECREMENT); ;
break;}
case 11:
#line 231 "expread.y"
{ write_exp_elt_opcode (UNOP_POSTINCREMENT); ;
break;}
case 12:
#line 235 "expread.y"
{ write_exp_elt_opcode (UNOP_POSTDECREMENT); ;
break;}
case 13:
#line 239 "expread.y"
{ write_exp_elt_opcode (UNOP_SIZEOF); ;
break;}
case 14:
#line 243 "expread.y"
{ write_exp_elt_opcode (STRUCTOP_PTR);
write_exp_string (yyvsp[0].sval);
write_exp_elt_opcode (STRUCTOP_PTR); ;
break;}
case 15:
#line 249 "expread.y"
{ write_exp_elt_opcode (STRUCTOP_MPTR); ;
break;}
case 16:
#line 253 "expread.y"
{ write_exp_elt_opcode (STRUCTOP_STRUCT);
write_exp_string (yyvsp[0].sval);
write_exp_elt_opcode (STRUCTOP_STRUCT); ;
break;}
case 17:
#line 259 "expread.y"
{ write_exp_elt_opcode (STRUCTOP_MEMBER); ;
break;}
case 18:
#line 263 "expread.y"
{ write_exp_elt_opcode (BINOP_SUBSCRIPT); ;
break;}
case 19:
#line 269 "expread.y"
{ start_arglist (); ;
break;}
case 20:
#line 271 "expread.y"
{ write_exp_elt_opcode (OP_FUNCALL);
write_exp_elt_longcst ((LONGEST) end_arglist ());
write_exp_elt_opcode (OP_FUNCALL); ;
break;}
case 22:
#line 280 "expread.y"
{ arglist_len = 1; ;
break;}
case 23:
#line 284 "expread.y"
{ arglist_len++; ;
break;}
case 24:
#line 288 "expread.y"
{ write_exp_elt_opcode (UNOP_MEMVAL);
write_exp_elt_type (yyvsp[-2].tval);
write_exp_elt_opcode (UNOP_MEMVAL); ;
break;}
case 25:
#line 294 "expread.y"
{ write_exp_elt_opcode (UNOP_CAST);
write_exp_elt_type (yyvsp[-2].tval);
write_exp_elt_opcode (UNOP_CAST); ;
break;}
case 26:
#line 300 "expread.y"
{ ;
break;}
case 27:
#line 306 "expread.y"
{ write_exp_elt_opcode (BINOP_REPEAT); ;
break;}
case 28:
#line 310 "expread.y"
{ write_exp_elt_opcode (BINOP_MUL); ;
break;}
case 29:
#line 314 "expread.y"
{ write_exp_elt_opcode (BINOP_DIV); ;
break;}
case 30:
#line 318 "expread.y"
{ write_exp_elt_opcode (BINOP_REM); ;
break;}
case 31:
#line 322 "expread.y"
{ write_exp_elt_opcode (BINOP_ADD); ;
break;}
case 32:
#line 326 "expread.y"
{ write_exp_elt_opcode (BINOP_SUB); ;
break;}
case 33:
#line 330 "expread.y"
{ write_exp_elt_opcode (BINOP_LSH); ;
break;}
case 34:
#line 334 "expread.y"
{ write_exp_elt_opcode (BINOP_RSH); ;
break;}
case 35:
#line 338 "expread.y"
{ write_exp_elt_opcode (BINOP_EQUAL); ;
break;}
case 36:
#line 342 "expread.y"
{ write_exp_elt_opcode (BINOP_NOTEQUAL); ;
break;}
case 37:
#line 346 "expread.y"
{ write_exp_elt_opcode (BINOP_LEQ); ;
break;}
case 38:
#line 350 "expread.y"
{ write_exp_elt_opcode (BINOP_GEQ); ;
break;}
case 39:
#line 354 "expread.y"
{ write_exp_elt_opcode (BINOP_LESS); ;
break;}
case 40:
#line 358 "expread.y"
{ write_exp_elt_opcode (BINOP_GTR); ;
break;}
case 41:
#line 362 "expread.y"
{ write_exp_elt_opcode (BINOP_LOGAND); ;
break;}
case 42:
#line 366 "expread.y"
{ write_exp_elt_opcode (BINOP_LOGXOR); ;
break;}
case 43:
#line 370 "expread.y"
{ write_exp_elt_opcode (BINOP_LOGIOR); ;
break;}
case 44:
#line 374 "expread.y"
{ write_exp_elt_opcode (BINOP_AND); ;
break;}
case 45:
#line 378 "expread.y"
{ write_exp_elt_opcode (BINOP_OR); ;
break;}
case 46:
#line 382 "expread.y"
{ write_exp_elt_opcode (TERNOP_COND); ;
break;}
case 47:
#line 386 "expread.y"
{ write_exp_elt_opcode (BINOP_ASSIGN); ;
break;}
case 48:
#line 390 "expread.y"
{ write_exp_elt_opcode (BINOP_ASSIGN_MODIFY);
write_exp_elt_opcode (yyvsp[-1].opcode);
write_exp_elt_opcode (BINOP_ASSIGN_MODIFY); ;
break;}
case 49:
#line 396 "expread.y"
{ write_exp_elt_opcode (OP_LONG);
#ifdef atarist
if (gcc_mshort && (yyvsp[0].lval == (short) yyvsp[0].lval
|| yyvsp[0].lval == (unsigned short) yyvsp[0].lval))
write_exp_elt_type (builtin_type_short);
else
#endif
if (yyvsp[0].lval == (int) yyvsp[0].lval || yyvsp[0].lval == (unsigned int) yyvsp[0].lval)
write_exp_elt_type (builtin_type_int);
#ifdef LONG_LONG
else if (yyvsp[0].lval == (long) yyvsp[0].lval || yyvsp[0].lval == (unsigned long) yyvsp[0].lval)
write_exp_elt_type (builtin_type_long);
#endif
else
write_exp_elt_type (BUILTIN_TYPE_LONGEST);
write_exp_elt_longcst ((LONGEST) yyvsp[0].lval);
write_exp_elt_opcode (OP_LONG); ;
break;}
case 50:
#line 416 "expread.y"
{
write_exp_elt_opcode (OP_LONG);
#ifdef atarist
if (gcc_mshort && yyvsp[0].ulval == (unsigned short) yyvsp[0].ulval)
write_exp_elt_type (builtin_type_unsigned_short);
else
#endif
if (yyvsp[0].ulval == (unsigned int) yyvsp[0].ulval)
write_exp_elt_type (builtin_type_unsigned_int);
#ifdef LONG_LONG
else if (yyvsp[0].ulval == (unsigned long) yyvsp[0].ulval)
write_exp_elt_type (builtin_type_unsigned_long);
#endif
else
write_exp_elt_type (BUILTIN_TYPE_UNSIGNED_LONGEST);
write_exp_elt_longcst ((LONGEST) yyvsp[0].ulval);
write_exp_elt_opcode (OP_LONG);
;
break;}
case 51:
#line 437 "expread.y"
{ write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (builtin_type_char);
write_exp_elt_longcst ((LONGEST) yyvsp[0].lval);
write_exp_elt_opcode (OP_LONG); ;
break;}
case 52:
#line 444 "expread.y"
{ write_exp_elt_opcode (OP_DOUBLE);
write_exp_elt_type (builtin_type_double);
write_exp_elt_dblcst (yyvsp[0].dval);
write_exp_elt_opcode (OP_DOUBLE); ;
break;}
case 54:
#line 454 "expread.y"
{ write_exp_elt_opcode (OP_LAST);
write_exp_elt_longcst ((LONGEST) yyvsp[0].lval);
write_exp_elt_opcode (OP_LAST); ;
break;}
case 55:
#line 460 "expread.y"
{ write_exp_elt_opcode (OP_REGISTER);
write_exp_elt_longcst ((LONGEST) yyvsp[0].lval);
write_exp_elt_opcode (OP_REGISTER); ;
break;}
case 56:
#line 466 "expread.y"
{ write_exp_elt_opcode (OP_INTERNALVAR);
write_exp_elt_intern (yyvsp[0].ivar);
write_exp_elt_opcode (OP_INTERNALVAR); ;
break;}
case 57:
#line 472 "expread.y"
{ write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (builtin_type_int);
write_exp_elt_longcst ((LONGEST) TYPE_LENGTH (yyvsp[-1].tval));
write_exp_elt_opcode (OP_LONG); ;
break;}
case 58:
#line 479 "expread.y"
{ write_exp_elt_opcode (OP_STRING);
write_exp_string (yyvsp[0].sval);
write_exp_elt_opcode (OP_STRING); ;
break;}
case 59:
#line 486 "expread.y"
{ write_exp_elt_opcode (OP_THIS);
write_exp_elt_opcode (OP_THIS); ;
break;}
case 60:
#line 493 "expread.y"
{
struct symtab *tem = lookup_symtab (copy_name (yyvsp[0].sval));
struct symbol *sym;
if (tem)
yyval.bval = BLOCKVECTOR_BLOCK (BLOCKVECTOR (tem), 1);
else
{
sym = lookup_symbol (copy_name (yyvsp[0].sval),
expression_context_block,
VAR_NAMESPACE, 0);
if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
yyval.bval = SYMBOL_BLOCK_VALUE (sym);
else
error ("No file or function \"%s\".",
copy_name (yyvsp[0].sval));
}
;
break;}
case 61:
#line 514 "expread.y"
{ struct symbol *tem
= lookup_symbol (copy_name (yyvsp[0].sval), yyvsp[-2].bval, VAR_NAMESPACE, 0);
if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
error ("No function \"%s\" in specified context.",
copy_name (yyvsp[0].sval));
yyval.bval = SYMBOL_BLOCK_VALUE (tem); ;
break;}
case 62:
#line 523 "expread.y"
{ struct symbol *sym;
sym = lookup_symbol (copy_name (yyvsp[0].sval), yyvsp[-2].bval, VAR_NAMESPACE, 0);
if (sym == 0)
error ("No symbol \"%s\" in specified context.",
copy_name (yyvsp[0].sval));
write_exp_elt_opcode (OP_VAR_VALUE);
write_exp_elt_sym (sym);
write_exp_elt_opcode (OP_VAR_VALUE); ;
break;}
case 63:
#line 534 "expread.y"
{
struct type *type = yyvsp[-2].tval;
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
&& TYPE_CODE (type) != TYPE_CODE_UNION)
error ("`%s' is not defined as an aggregate type.",
TYPE_NAME (type));
write_exp_elt_opcode (OP_SCOPE);
write_exp_elt_type (type);
write_exp_string (yyvsp[0].sval);
write_exp_elt_opcode (OP_SCOPE);
;
break;}
case 64:
#line 547 "expread.y"
{
char *name = copy_name (yyvsp[0].sval);
struct symbol *sym;
int i;
sym = lookup_symbol (name, 0, VAR_NAMESPACE, 0);
if (sym)
{
write_exp_elt_opcode (OP_VAR_VALUE);
write_exp_elt_sym (sym);
write_exp_elt_opcode (OP_VAR_VALUE);
break;
}
for (i = 0; i < misc_function_count; i++)
if (!strcmp (misc_function_vector[i].name, name))
break;
if (i < misc_function_count)
{
enum misc_function_type mft =
(enum misc_function_type)
misc_function_vector[i].type;
write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (builtin_type_int);
write_exp_elt_longcst ((LONGEST) misc_function_vector[i].address);
write_exp_elt_opcode (OP_LONG);
write_exp_elt_opcode (UNOP_MEMVAL);
if (mft == mf_data || mft == mf_bss)
write_exp_elt_type (builtin_type_int);
else if (mft == mf_text)
write_exp_elt_type (lookup_function_type (builtin_type_int));
else
write_exp_elt_type (builtin_type_char);
write_exp_elt_opcode (UNOP_MEMVAL);
}
else
if (symtab_list == 0
&& partial_symtab_list == 0)
error ("No symbol table is loaded. Use the \"symbol-file\" command.");
else
error ("No symbol \"%s\" in current context.", name);
;
break;}
case 65:
#line 593 "expread.y"
{ struct symbol *sym;
int is_a_field_of_this;
sym = lookup_symbol (copy_name (yyvsp[0].sval),
expression_context_block,
VAR_NAMESPACE,
&is_a_field_of_this);
if (sym)
{
switch (sym->class)
{
case LOC_REGISTER:
case LOC_ARG:
case LOC_LOCAL:
if (innermost_block == 0 ||
contained_in (block_found,
innermost_block))
innermost_block = block_found;
}
write_exp_elt_opcode (OP_VAR_VALUE);
write_exp_elt_sym (sym);
write_exp_elt_opcode (OP_VAR_VALUE);
}
else if (is_a_field_of_this)
{
/* C++: it hangs off of `this'. Must
not inadvertently convert from a method call
to data ref. */
if (innermost_block == 0 ||
contained_in (block_found, innermost_block))
innermost_block = block_found;
write_exp_elt_opcode (OP_THIS);
write_exp_elt_opcode (OP_THIS);
write_exp_elt_opcode (STRUCTOP_PTR);
write_exp_string (yyvsp[0].sval);
write_exp_elt_opcode (STRUCTOP_PTR);
}
else
{
register int i;
register char *arg = copy_name (yyvsp[0].sval);
for (i = 0; i < misc_function_count; i++)
if (!strcmp (misc_function_vector[i].name, arg))
break;
if (i < misc_function_count)
{
enum misc_function_type mft =
(enum misc_function_type)
misc_function_vector[i].type;
write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (builtin_type_int);
write_exp_elt_longcst ((LONGEST) misc_function_vector[i].address);
write_exp_elt_opcode (OP_LONG);
write_exp_elt_opcode (UNOP_MEMVAL);
if (mft == mf_data || mft == mf_bss)
write_exp_elt_type (builtin_type_int);
else if (mft == mf_text)
write_exp_elt_type (lookup_function_type (builtin_type_int));
else
write_exp_elt_type (builtin_type_char);
write_exp_elt_opcode (UNOP_MEMVAL);
}
else if (symtab_list == 0
&& partial_symtab_list == 0)
error ("No symbol table is loaded. Use the \"symbol-file\" command.");
else
error ("No symbol \"%s\" in current context.",
copy_name (yyvsp[0].sval));
}
;
break;}
case 67:
#line 671 "expread.y"
{
/* This is where the interesting stuff happens. */
int done = 0;
int array_size;
struct type *follow_type = yyvsp[-1].tval;
while (!done)
switch (pop_type ())
{
case tp_end:
done = 1;
break;
case tp_pointer:
follow_type = lookup_pointer_type (follow_type);
break;
case tp_reference:
follow_type = lookup_reference_type (follow_type);
break;
case tp_array:
array_size = (int) pop_type ();
if (array_size != -1)
follow_type = create_array_type (follow_type,
array_size);
else
follow_type = lookup_pointer_type (follow_type);
break;
case tp_function:
follow_type = lookup_function_type (follow_type);
break;
}
yyval.tval = follow_type;
;
break;}
case 68:
#line 706 "expread.y"
{ push_type (tp_pointer); yyval.voidval = 0; ;
break;}
case 69:
#line 708 "expread.y"
{ push_type (tp_pointer); yyval.voidval = yyvsp[0].voidval; ;
break;}
case 71:
#line 713 "expread.y"
{ yyval.voidval = yyvsp[-1].voidval; ;
break;}
case 72:
#line 715 "expread.y"
{
push_type ((enum type_pieces) yyvsp[0].lval);
push_type (tp_array);
;
break;}
case 73:
#line 720 "expread.y"
{
push_type ((enum type_pieces) yyvsp[0].lval);
push_type (tp_array);
yyval.voidval = 0;
;
break;}
case 74:
#line 726 "expread.y"
{ push_type (tp_function); ;
break;}
case 75:
#line 728 "expread.y"
{ push_type (tp_function); ;
break;}
case 76:
#line 732 "expread.y"
{ yyval.lval = -1; ;
break;}
case 77:
#line 734 "expread.y"
{ yyval.lval = yyvsp[-1].lval; ;
break;}
case 78:
#line 738 "expread.y"
{ yyval.voidval = 0; ;
break;}
case 80:
#line 743 "expread.y"
{ yyval.tval = lookup_member_type (builtin_type_int, yyvsp[-2].tval); ;
break;}
case 81:
#line 745 "expread.y"
{ yyval.tval = lookup_member_type (yyvsp[-5].tval, yyvsp[-3].tval); ;
break;}
case 82:
#line 747 "expread.y"
{ yyval.tval = lookup_member_type
(lookup_function_type (yyvsp[-7].tval), yyvsp[-5].tval); ;
break;}
case 83:
#line 750 "expread.y"
{ yyval.tval = lookup_member_type
(lookup_function_type (yyvsp[-8].tval), yyvsp[-6].tval);
free (yyvsp[-1].tvec); ;
break;}
case 84:
#line 757 "expread.y"
{ yyval.tval = lookup_typename (copy_name (yyvsp[0].sval),
expression_context_block, 0); ;
break;}
case 85:
#line 760 "expread.y"
{ yyval.tval = builtin_type_int; ;
break;}
case 86:
#line 762 "expread.y"
{ yyval.tval = builtin_type_long; ;
break;}
case 87:
#line 764 "expread.y"
{
#ifdef LONG_LONG
yyval.tval = builtin_type_long_long;
#else
yyval.tval = lookup_typename ("long long",
expression_context_block, 0);
#endif
;
break;}
case 88:
#line 773 "expread.y"
{ yyval.tval = builtin_type_short; ;
break;}
case 89:
#line 775 "expread.y"
{ yyval.tval = builtin_type_long; ;
break;}
case 90:
#line 777 "expread.y"
{
#ifdef LONG_LONG
yyval.tval = builtin_type_long_long;
#else
yyval.tval = lookup_typename ("long long int",
expression_context_block, 0);
#endif
;
break;}
case 91:
#line 786 "expread.y"
{ yyval.tval = builtin_type_unsigned_long; ;
break;}
case 92:
#line 788 "expread.y"
{
#ifdef LONG_LONG
yyval.tval = builtin_type_unsigned_long_long;
#else
yyval.tval = lookup_typename ("unsigned long long int",
expression_context_block, 0);
#endif
;
break;}
case 93:
#line 797 "expread.y"
{ yyval.tval = builtin_type_short; ;
break;}
case 94:
#line 799 "expread.y"
{ yyval.tval = builtin_type_unsigned_short; ;
break;}
case 95:
#line 801 "expread.y"
{ yyval.tval = builtin_type_double; ;
break;}
case 96:
#line 803 "expread.y"
{
#ifdef LONG_DOUBLE
yyval.tval = builtin_type_long_double;
#else
yyval.tval = lookup_typename ("long double",
expression_context_block, 0);
#endif
;
break;}
case 97:
#line 812 "expread.y"
{ yyval.tval = lookup_struct (copy_name (yyvsp[0].sval),
expression_context_block); ;
break;}
case 98:
#line 815 "expread.y"
{ yyval.tval = lookup_union (copy_name (yyvsp[0].sval),
expression_context_block); ;
break;}
case 99:
#line 818 "expread.y"
{ yyval.tval = lookup_enum (copy_name (yyvsp[0].sval),
expression_context_block); ;
break;}
case 100:
#line 821 "expread.y"
{ yyval.tval = lookup_unsigned_typename (copy_name (yyvsp[0].sval)); ;
break;}
case 101:
#line 823 "expread.y"
{ yyval.tval = builtin_type_unsigned_int; ;
break;}
case 102:
#line 825 "expread.y"
{ yyval.tval = lookup_typename (copy_name (yyvsp[0].sval),
expression_context_block, 0); ;
break;}
case 103:
#line 828 "expread.y"
{ yyval.tval = builtin_type_int; ;
break;}
case 105:
#line 833 "expread.y"
{
yyval.sval.ptr = "int";
yyval.sval.length = 3;
;
break;}
case 106:
#line 838 "expread.y"
{
yyval.sval.ptr = "long";
yyval.sval.length = 4;
;
break;}
case 107:
#line 843 "expread.y"
{
yyval.sval.ptr = "short";
yyval.sval.length = 5;
;
break;}
case 108:
#line 851 "expread.y"
{ yyval.tvec = (struct type **)xmalloc (sizeof (struct type *) * 2);
yyval.tvec[0] = (struct type *)0;
yyval.tvec[1] = yyvsp[0].tval;
;
break;}
case 109:
#line 856 "expread.y"
{ int len = sizeof (struct type *) * ++(yyvsp[-2].ivec[0]);
yyval.tvec = (struct type **)xrealloc (yyvsp[-2].tvec, len);
yyval.tvec[yyval.ivec[0]] = yyvsp[0].tval;
;
break;}
}
/* the action file gets copied in in place of this dollarsign */
#line 465 "/gnu/lib/bison.simple"
yyvsp -= yylen;
yyssp -= yylen;
#ifdef YYLSP_NEEDED
yylsp -= yylen;
#endif
#if YYDEBUG != 0
if (yydebug)
{
short *ssp1 = yyss - 1;
fprintf (stderr, "state stack now");
while (ssp1 != yyssp)
fprintf (stderr, " %d", *++ssp1);
fprintf (stderr, "\n");
}
#endif
*++yyvsp = yyval;
#ifdef YYLSP_NEEDED
yylsp++;
if (yylen == 0)
{
yylsp->first_line = yylloc.first_line;
yylsp->first_column = yylloc.first_column;
yylsp->last_line = (yylsp-1)->last_line;
yylsp->last_column = (yylsp-1)->last_column;
yylsp->text = 0;
}
else
{
yylsp->last_line = (yylsp+yylen-1)->last_line;
yylsp->last_column = (yylsp+yylen-1)->last_column;
}
#endif
/* Now "shift" the result of the reduction.
Determine what state that goes to,
based on the state we popped back to
and the rule number reduced by. */
yyn = yyr1[yyn];
yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
yystate = yytable[yystate];
else
yystate = yydefgoto[yyn - YYNTBASE];
goto yynewstate;
yyerrlab: /* here on detecting error */
if (! yyerrstatus)
/* If not already recovering from an error, report this error. */
{
++yynerrs;
#ifdef YYERROR_VERBOSE
yyn = yypact[yystate];
if (yyn > YYFLAG && yyn < YYLAST)
{
int size = 0;
char *msg;
int x, count;
count = 0;
/* Start X at -yyn if nec to avoid negative indexes in yycheck. */
for (x = (yyn < 0 ? -yyn : 0);
x < (sizeof(yytname) / sizeof(char *)); x++)
if (yycheck[x + yyn] == x)
size += strlen(yytname[x]) + 15, count++;
msg = (char *) malloc(size + 15);
if (msg != 0)
{
strcpy(msg, "parse error");
if (count < 5)
{
count = 0;
for (x = (yyn < 0 ? -yyn : 0);
x < (sizeof(yytname) / sizeof(char *)); x++)
if (yycheck[x + yyn] == x)
{
strcat(msg, count == 0 ? ", expecting `" : " or `");
strcat(msg, yytname[x]);
strcat(msg, "'");
count++;
}
}
yyerror(msg);
free(msg);
}
else
yyerror ("parse error; also virtual memory exceeded");
}
else
#endif /* YYERROR_VERBOSE */
yyerror("parse error");
}
goto yyerrlab1;
yyerrlab1: /* here on error raised explicitly by an action */
if (yyerrstatus == 3)
{
/* if just tried and failed to reuse lookahead token after an error, discard it. */
/* return failure if at end of input */
if (yychar == YYEOF)
YYABORT;
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
#endif
yychar = YYEMPTY;
}
/* Else will try to reuse lookahead token
after shifting the error token. */
yyerrstatus = 3; /* Each real token shifted decrements this */
goto yyerrhandle;
yyerrdefault: /* current state does not do anything special for the error token. */
#if 0
/* This is wrong; only states that explicitly want error tokens
should shift them. */
yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
if (yyn) goto yydefault;
#endif
yyerrpop: /* pop the current state because it cannot handle the error token */
if (yyssp == yyss) YYABORT;
yyvsp--;
yystate = *--yyssp;
#ifdef YYLSP_NEEDED
yylsp--;
#endif
#if YYDEBUG != 0
if (yydebug)
{
short *ssp1 = yyss - 1;
fprintf (stderr, "Error: state stack now");
while (ssp1 != yyssp)
fprintf (stderr, " %d", *++ssp1);
fprintf (stderr, "\n");
}
#endif
yyerrhandle:
yyn = yypact[yystate];
if (yyn == YYFLAG)
goto yyerrdefault;
yyn += YYTERROR;
if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR)
goto yyerrdefault;
yyn = yytable[yyn];
if (yyn < 0)
{
if (yyn == YYFLAG)
goto yyerrpop;
yyn = -yyn;
goto yyreduce;
}
else if (yyn == 0)
goto yyerrpop;
if (yyn == YYFINAL)
YYACCEPT;
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Shifting error token, ");
#endif
*++yyvsp = yylval;
#ifdef YYLSP_NEEDED
*++yylsp = yylloc;
#endif
yystate = yyn;
goto yynewstate;
}
#line 871 "expread.y"
/* Begin counting arguments for a function call,
saving the data about any containing call. */
static void
start_arglist ()
{
register struct funcall *new = (struct funcall *) xmalloc (sizeof (struct funcall));
new->next = funcall_chain;
new->arglist_len = arglist_len;
arglist_len = 0;
funcall_chain = new;
}
/* Return the number of arguments in a function call just terminated,
and restore the data for the containing function call. */
static int
end_arglist ()
{
register int val = arglist_len;
register struct funcall *call = funcall_chain;
funcall_chain = call->next;
arglist_len = call->arglist_len;
free (call);
return val;
}
/* Free everything in the funcall chain.
Used when there is an error inside parsing. */
static void
free_funcalls ()
{
register struct funcall *call, *next;
for (call = funcall_chain; call; call = next)
{
next = call->next;
free (call);
}
}
/* This page contains the functions for adding data to the struct expression
being constructed. */
/* Add one element to the end of the expression. */
/* To avoid a bug in the Sun 4 compiler, we pass things that can fit into
a register through here */
static void
write_exp_elt (expelt)
union exp_element expelt;
{
if (expout_ptr >= expout_size)
{
expout_size *= 2;
expout = (struct expression *) xrealloc (expout,
sizeof (struct expression)
+ expout_size * sizeof (union exp_element));
}
expout->elts[expout_ptr++] = expelt;
}
static void
write_exp_elt_opcode (expelt)
enum exp_opcode expelt;
{
union exp_element tmp;
tmp.opcode = expelt;
write_exp_elt (tmp);
}
static void
write_exp_elt_sym (expelt)
struct symbol *expelt;
{
union exp_element tmp;
tmp.symbol = expelt;
write_exp_elt (tmp);
}
static void
write_exp_elt_longcst (expelt)
LONGEST expelt;
{
union exp_element tmp;
tmp.longconst = expelt;
write_exp_elt (tmp);
}
static void
write_exp_elt_dblcst (expelt)
double expelt;
{
union exp_element tmp;
tmp.doubleconst = expelt;
write_exp_elt (tmp);
}
static void
write_exp_elt_type (expelt)
struct type *expelt;
{
union exp_element tmp;
tmp.type = expelt;
write_exp_elt (tmp);
}
static void
write_exp_elt_intern (expelt)
struct internalvar *expelt;
{
union exp_element tmp;
tmp.internalvar = expelt;
write_exp_elt (tmp);
}
/* Add a string constant to the end of the expression.
Follow it by its length in bytes, as a separate exp_element. */
static void
write_exp_string (str)
struct stoken str;
{
register int len = str.length;
register int lenelt
= (len + sizeof (union exp_element)) / sizeof (union exp_element);
expout_ptr += lenelt;
if (expout_ptr >= expout_size)
{
expout_size = max (expout_size * 2, expout_ptr + 10);
expout = (struct expression *)
xrealloc (expout, (sizeof (struct expression)
+ (expout_size * sizeof (union exp_element))));
}
bcopy (str.ptr, (char *) &expout->elts[expout_ptr - lenelt], len);
((char *) &expout->elts[expout_ptr - lenelt])[len] = 0;
write_exp_elt_longcst ((LONGEST) len);
}
/* During parsing of a C expression, the pointer to the next character
is in this variable. */
static char *lexptr;
/* Tokens that refer to names do so with explicit pointer and length,
so they can share the storage that lexptr is parsing.
When it is necessary to pass a name to a function that expects
a null-terminated string, the substring is copied out
into a block of storage that namecopy points to.
namecopy is allocated once, guaranteed big enough, for each parsing. */
static char *namecopy;
/* Current depth in parentheses within the expression. */
static int paren_depth;
/* Nonzero means stop parsing on first comma (if not within parentheses). */
static int comma_terminates;
/* Take care of parsing a number (anything that starts with a digit).
Set yylval and return the token type; update lexptr.
LEN is the number of characters in it. */
/*** Needs some error checking for the float case ***/
static int
parse_number (olen)
int olen;
{
register char *p = lexptr;
register LONGEST n = 0;
register int c;
register int base = 10;
register int len = olen;
char *err_copy;
int unsigned_p = 0;
extern double atof ();
for (c = 0; c < len; c++)
if (p[c] == '.')
{
/* It's a float since it contains a point. */
yylval.dval = atof (p);
lexptr += len;
return FLOAT;
}
if (len >= 3 && (!strncmp (p, "0x", 2) || !strncmp (p, "0X", 2)))
{
p += 2;
base = 16;
len -= 2;
}
else if (*p == '0')
base = 8;
while (len-- > 0)
{
c = *p++;
if (c >= 'A' && c <= 'Z') c += 'a' - 'A';
if (c != 'l' && c != 'u')
n *= base;
if (c >= '0' && c <= '9')
n += c - '0';
else
{
if (base == 16 && c >= 'a' && c <= 'f')
n += c - 'a' + 10;
else if (len == 0 && c == 'l')
;
else if (len == 0 && c == 'u')
unsigned_p = 1;
else if (base == 10 && len != 0 && (c == 'e' || c == 'E'))
{
/* Scientific notation, where we are unlucky enough not
to have a '.' in the string. */
yylval.dval = atof (lexptr);
lexptr += olen;
return FLOAT;
}
else
{
err_copy = (char *) alloca (olen + 1);
bcopy (lexptr, err_copy, olen);
err_copy[olen] = 0;
error ("Invalid number \"%s\".", err_copy);
}
}
}
lexptr = p;
if (unsigned_p)
{
yylval.ulval = n;
return UINT;
}
else
{
yylval.lval = n;
return INT;
}
}
struct token
{
char *operator;
int token;
enum exp_opcode opcode;
};
static struct token tokentab3[] =
{
{">>=", ASSIGN_MODIFY, BINOP_RSH},
{"<<=", ASSIGN_MODIFY, BINOP_LSH}
};
static struct token tokentab2[] =
{
{"+=", ASSIGN_MODIFY, BINOP_ADD},
{"-=", ASSIGN_MODIFY, BINOP_SUB},
{"*=", ASSIGN_MODIFY, BINOP_MUL},
{"/=", ASSIGN_MODIFY, BINOP_DIV},
{"%=", ASSIGN_MODIFY, BINOP_REM},
{"|=", ASSIGN_MODIFY, BINOP_LOGIOR},
{"&=", ASSIGN_MODIFY, BINOP_LOGAND},
{"^=", ASSIGN_MODIFY, BINOP_LOGXOR},
{"++", INCREMENT, BINOP_END},
{"--", DECREMENT, BINOP_END},
{"->", ARROW, BINOP_END},
{"&&", AND, BINOP_END},
{"||", OR, BINOP_END},
{"::", COLONCOLON, BINOP_END},
{"<<", LSH, BINOP_END},
{">>", RSH, BINOP_END},
{"==", EQUAL, BINOP_END},
{"!=", NOTEQUAL, BINOP_END},
{"<=", LEQ, BINOP_END},
{">=", GEQ, BINOP_END}
};
/* assign machine-independent names to certain registers
* (unless overridden by the REGISTER_NAMES table)
*/
struct std_regs {
char *name;
int regnum;
} std_regs[] = {
#ifdef PC_REGNUM
{ "pc", PC_REGNUM },
#endif
#ifdef FP_REGNUM
{ "fp", FP_REGNUM },
#endif
#ifdef SP_REGNUM
{ "sp", SP_REGNUM },
#endif
#ifdef PS_REGNUM
{ "ps", PS_REGNUM },
#endif
};
#define NUM_STD_REGS (sizeof std_regs / sizeof std_regs[0])
/* Read one token, getting characters through lexptr. */
static int
yylex ()
{
register int c;
register int namelen;
register int i;
register char *tokstart;
retry:
tokstart = lexptr;
/* See if it is a special token of length 3. */
for (i = 0; i < sizeof tokentab3 / sizeof tokentab3[0]; i++)
if (!strncmp (tokstart, tokentab3[i].operator, 3))
{
lexptr += 3;
yylval.opcode = tokentab3[i].opcode;
return tokentab3[i].token;
}
/* See if it is a special token of length 2. */
for (i = 0; i < sizeof tokentab2 / sizeof tokentab2[0]; i++)
if (!strncmp (tokstart, tokentab2[i].operator, 2))
{
lexptr += 2;
yylval.opcode = tokentab2[i].opcode;
return tokentab2[i].token;
}
switch (c = *tokstart)
{
case 0:
return 0;
case ' ':
case '\t':
case '\n':
lexptr++;
goto retry;
case '\'':
lexptr++;
c = *lexptr++;
if (c == '\\')
c = parse_escape (&lexptr);
yylval.lval = c;
c = *lexptr++;
if (c != '\'')
error ("Invalid character constant.");
return CHAR;
case '(':
paren_depth++;
lexptr++;
return c;
case ')':
if (paren_depth == 0)
return 0;
paren_depth--;
lexptr++;
return c;
case ',':
if (comma_terminates && paren_depth == 0)
return 0;
lexptr++;
return c;
case '.':
/* Might be a floating point number. */
if (lexptr[1] >= '0' && lexptr[1] <= '9')
break; /* Falls into number code. */
case '+':
case '-':
case '*':
case '/':
case '%':
case '|':
case '&':
case '^':
case '~':
case '!':
case '@':
case '<':
case '>':
case '[':
case ']':
case '?':
case ':':
case '=':
case '{':
case '}':
lexptr++;
return c;
case '"':
for (namelen = 1; (c = tokstart[namelen]) != '"'; namelen++)
if (c == '\\')
{
c = tokstart[++namelen];
if (c >= '0' && c <= '9')
{
c = tokstart[++namelen];
if (c >= '0' && c <= '9')
c = tokstart[++namelen];
}
}
yylval.sval.ptr = tokstart + 1;
yylval.sval.length = namelen - 1;
lexptr += namelen + 1;
return STRING;
}
/* Is it a number? */
/* Note: We have already dealt with the case of the token '.'.
See case '.' above. */
if ((c >= '0' && c <= '9') || c == '.')
{
/* It's a number. */
int got_dot = 0, got_e = 0;
register char *p = tokstart;
int hex = c == '0' && (p[1] == 'x' || p[1] == 'X');
if (hex)
p += 2;
for (;; ++p)
{
if (!hex && !got_e && (*p == 'e' || *p == 'E'))
got_dot = got_e = 1;
else if (!hex && !got_dot && *p == '.')
got_dot = 1;
else if (got_e && (p[-1] == 'e' || p[-1] == 'E')
&& (*p == '-' || *p == '+'))
/* This is the sign of the exponent, not the end of the
number. */
continue;
else if (*p < '0' || *p > '9'
&& (!hex || ((*p < 'a' || *p > 'f')
&& (*p < 'A' || *p > 'F'))))
break;
}
return parse_number (p - tokstart);
}
if (!(c == '_' || c == '$'
|| (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')))
/* We must have come across a bad character (e.g. ';'). */
error ("Invalid character '%c' in expression.", c);
/* It's a name. See how long it is. */
namelen = 0;
for (c = tokstart[namelen];
(c == '_' || c == '$' || (c >= '0' && c <= '9')
|| (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'));
c = tokstart[++namelen])
;
/* The token "if" terminates the expression and is NOT
removed from the input stream. */
if (namelen == 2 && tokstart[0] == 'i' && tokstart[1] == 'f')
{
return 0;
}
lexptr += namelen;
/* Handle the tokens $digits; also $ (short for $0) and $$ (short for $$1)
and $$digits (equivalent to $<-digits> if you could type that).
Make token type LAST, and put the number (the digits) in yylval. */
if (*tokstart == '$')
{
register int negate = 0;
c = 1;
/* Double dollar means negate the number and add -1 as well.
Thus $$ alone means -1. */
if (namelen >= 2 && tokstart[1] == '$')
{
negate = 1;
c = 2;
}
if (c == namelen)
{
/* Just dollars (one or two) */
yylval.lval = - negate;
return LAST;
}
/* Is the rest of the token digits? */
for (; c < namelen; c++)
if (!(tokstart[c] >= '0' && tokstart[c] <= '9'))
break;
if (c == namelen)
{
yylval.lval = atoi (tokstart + 1 + negate);
if (negate)
yylval.lval = - yylval.lval;
return LAST;
}
}
/* Handle tokens that refer to machine registers:
$ followed by a register name. */
if (*tokstart == '$') {
for (c = 0; c < NUM_REGS; c++)
if (namelen - 1 == strlen (reg_names[c])
&& !strncmp (tokstart + 1, reg_names[c], namelen - 1))
{
yylval.lval = c;
return REGNAME;
}
for (c = 0; c < NUM_STD_REGS; c++)
if (namelen - 1 == strlen (std_regs[c].name)
&& !strncmp (tokstart + 1, std_regs[c].name, namelen - 1))
{
yylval.lval = std_regs[c].regnum;
return REGNAME;
}
}
/* Catch specific keywords. Should be done with a data structure. */
switch (namelen)
{
case 8:
if (!strncmp (tokstart, "unsigned", 8))
return UNSIGNED;
break;
case 6:
if (!strncmp (tokstart, "struct", 6))
return STRUCT;
if (!strncmp (tokstart, "signed", 6))
return SIGNED;
if (!strncmp (tokstart, "sizeof", 6))
return SIZEOF;
if (!strncmp (tokstart, "double", 6))
return DOUBLE;
break;
case 5:
if (!strncmp (tokstart, "union", 5))
return UNION;
if (!strncmp (tokstart, "short", 5))
return SHORT;
break;
case 4:
if (!strncmp (tokstart, "enum", 4))
return ENUM;
if (!strncmp (tokstart, "long", 4))
return LONG;
if (!strncmp (tokstart, "this", 4)
&& lookup_symbol ("$this", expression_context_block,
VAR_NAMESPACE, 0))
return THIS;
break;
case 3:
if (!strncmp (tokstart, "int", 3))
return INT_KEYWORD;
break;
default:
break;
}
yylval.sval.ptr = tokstart;
yylval.sval.length = namelen;
/* Any other names starting in $ are debugger internal variables. */
if (*tokstart == '$')
{
yylval.ivar = (struct internalvar *) lookup_internalvar (copy_name (yylval.sval) + 1);
return VARIABLE;
}
/* Use token-type BLOCKNAME for symbols that happen to be defined as
functions or symtabs. If this is not so, then ...
Use token-type TYPENAME for symbols that happen to be defined
currently as names of types; NAME for other symbols.
The caller is not constrained to care about the distinction. */
{
char *tmp = copy_name (yylval.sval);
struct symbol *sym;
if (lookup_partial_symtab (tmp))
return BLOCKNAME;
sym = lookup_symbol (tmp, expression_context_block,
VAR_NAMESPACE, 0);
if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
return BLOCKNAME;
if (lookup_typename (copy_name (yylval.sval), expression_context_block, 1))
return TYPENAME;
return NAME;
}
}
static void
yyerror ()
{
error ("Invalid syntax in expression.");
}
/* Return a null-terminated temporary copy of the name
of a string token. */
static char *
copy_name (token)
struct stoken token;
{
bcopy (token.ptr, namecopy, token.length);
namecopy[token.length] = 0;
return namecopy;
}
/* Reverse an expression from suffix form (in which it is constructed)
to prefix form (in which we can conveniently print or execute it). */
static void prefixify_subexp ();
static void
prefixify_expression (expr)
register struct expression *expr;
{
register int len = sizeof (struct expression) +
expr->nelts * sizeof (union exp_element);
register struct expression *temp;
register int inpos = expr->nelts, outpos = 0;
temp = (struct expression *) alloca (len);
/* Copy the original expression into temp. */
bcopy (expr, temp, len);
prefixify_subexp (temp, expr, inpos, outpos);
}
/* Return the number of exp_elements in the subexpression of EXPR
whose last exp_element is at index ENDPOS - 1 in EXPR. */
static int
length_of_subexp (expr, endpos)
register struct expression *expr;
register int endpos;
{
register int oplen = 1;
register int args = 0;
register int i;
if (endpos < 0)
error ("?error in length_of_subexp");
i = (int) expr->elts[endpos - 1].opcode;
switch (i)
{
/* C++ */
case OP_SCOPE:
oplen = 4 + ((expr->elts[endpos - 2].longconst
+ sizeof (union exp_element))
/ sizeof (union exp_element));
break;
case OP_LONG:
case OP_DOUBLE:
oplen = 4;
break;
case OP_VAR_VALUE:
case OP_LAST:
case OP_REGISTER:
case OP_INTERNALVAR:
oplen = 3;
break;
case OP_FUNCALL:
oplen = 3;
args = 1 + expr->elts[endpos - 2].longconst;
break;
case UNOP_CAST:
case UNOP_MEMVAL:
oplen = 3;
args = 1;
break;
case STRUCTOP_STRUCT:
case STRUCTOP_PTR:
args = 1;
case OP_STRING:
oplen = 3 + ((expr->elts[endpos - 2].longconst
+ sizeof (union exp_element))
/ sizeof (union exp_element));
break;
case TERNOP_COND:
args = 3;
break;
case BINOP_ASSIGN_MODIFY:
oplen = 3;
args = 2;
break;
/* C++ */
case OP_THIS:
oplen = 2;
break;
default:
args = 1 + (i < (int) BINOP_END);
}
while (args > 0)
{
oplen += length_of_subexp (expr, endpos - oplen);
args--;
}
return oplen;
}
/* Copy the subexpression ending just before index INEND in INEXPR
into OUTEXPR, starting at index OUTBEG.
In the process, convert it from suffix to prefix form. */
static void
prefixify_subexp (inexpr, outexpr, inend, outbeg)
register struct expression *inexpr;
struct expression *outexpr;
register int inend;
int outbeg;
{
register int oplen = 1;
register int args = 0;
register int i;
int *arglens;
enum exp_opcode opcode;
/* Compute how long the last operation is (in OPLEN),
and also how many preceding subexpressions serve as
arguments for it (in ARGS). */
opcode = inexpr->elts[inend - 1].opcode;
switch (opcode)
{
/* C++ */
case OP_SCOPE:
oplen = 4 + ((inexpr->elts[inend - 2].longconst
+ sizeof (union exp_element))
/ sizeof (union exp_element));
break;
case OP_LONG:
case OP_DOUBLE:
oplen = 4;
break;
case OP_VAR_VALUE:
case OP_LAST:
case OP_REGISTER:
case OP_INTERNALVAR:
oplen = 3;
break;
case OP_FUNCALL:
oplen = 3;
args = 1 + inexpr->elts[inend - 2].longconst;
break;
case UNOP_CAST:
case UNOP_MEMVAL:
oplen = 3;
args = 1;
break;
case STRUCTOP_STRUCT:
case STRUCTOP_PTR:
args = 1;
case OP_STRING:
oplen = 3 + ((inexpr->elts[inend - 2].longconst
+ sizeof (union exp_element))
/ sizeof (union exp_element));
break;
case TERNOP_COND:
args = 3;
break;
case BINOP_ASSIGN_MODIFY:
oplen = 3;
args = 2;
break;
/* C++ */
case OP_THIS:
oplen = 2;
break;
default:
args = 1 + ((int) opcode < (int) BINOP_END);
}
/* Copy the final operator itself, from the end of the input
to the beginning of the output. */
inend -= oplen;
bcopy (&inexpr->elts[inend], &outexpr->elts[outbeg],
oplen * sizeof (union exp_element));
outbeg += oplen;
/* Find the lengths of the arg subexpressions. */
arglens = (int *) alloca (args * sizeof (int));
for (i = args - 1; i >= 0; i--)
{
oplen = length_of_subexp (inexpr, inend);
arglens[i] = oplen;
inend -= oplen;
}
/* Now copy each subexpression, preserving the order of
the subexpressions, but prefixifying each one.
In this loop, inend starts at the beginning of
the expression this level is working on
and marches forward over the arguments.
outbeg does similarly in the output. */
for (i = 0; i < args; i++)
{
oplen = arglens[i];
inend += oplen;
prefixify_subexp (inexpr, outexpr, inend, outbeg);
outbeg += oplen;
}
}
/* This page contains the two entry points to this file. */
/* Read a C expression from the string *STRINGPTR points to,
parse it, and return a pointer to a struct expression that we malloc.
Use block BLOCK as the lexical context for variable names;
if BLOCK is zero, use the block of the selected stack frame.
Meanwhile, advance *STRINGPTR to point after the expression,
at the first nonwhite character that is not part of the expression
(possibly a null character).
If COMMA is nonzero, stop if a comma is reached. */
struct expression *
parse_c_1 (stringptr, block, comma)
char **stringptr;
struct block *block;
{
struct cleanup *old_chain;
lexptr = *stringptr;
paren_depth = 0;
type_stack_depth = 0;
comma_terminates = comma;
if (lexptr == 0 || *lexptr == 0)
error_no_arg ("expression to compute");
old_chain = make_cleanup (free_funcalls, 0);
funcall_chain = 0;
expression_context_block = block ? block : get_selected_block ();
namecopy = (char *) alloca (strlen (lexptr) + 1);
expout_size = 10;
expout_ptr = 0;
expout = (struct expression *)
xmalloc (sizeof (struct expression)
+ expout_size * sizeof (union exp_element));
make_cleanup (free_current_contents, &expout);
if (yyparse ())
yyerror ();
discard_cleanups (old_chain);
expout->nelts = expout_ptr;
expout = (struct expression *)
xrealloc (expout,
sizeof (struct expression)
+ expout_ptr * sizeof (union exp_element));
prefixify_expression (expout);
*stringptr = lexptr;
return expout;
}
/* Parse STRING as an expression, and complain if this fails
to use up all of the contents of STRING. */
struct expression *
parse_c_expression (string)
char *string;
{
register struct expression *exp;
exp = parse_c_1 (&string, 0, 0);
if (*string)
error ("Junk after end of expression.");
return exp;
}
static void
push_type (tp)
enum type_pieces tp;
{
if (type_stack_depth == type_stack_size)
{
type_stack_size *= 2;
type_stack = (enum type_pieces *)
xrealloc (type_stack, type_stack_size * sizeof (enum type_pieces));
}
type_stack[type_stack_depth++] = tp;
}
static enum type_pieces
pop_type ()
{
if (type_stack_depth)
return type_stack[--type_stack_depth];
return tp_end;
}
void
_initialize_expread ()
{
type_stack_size = 80;
type_stack_depth = 0;
type_stack = (enum type_pieces *)
xmalloc (type_stack_size * sizeof (enum type_pieces));
}