957 lines
31 KiB
C
957 lines
31 KiB
C
/* Print in infix form a struct expression.
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Copyright (C) 1986, 1989, 1991 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "expression.h"
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#include "value.h"
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#include "language.h"
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#include "parser-defs.h"
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/* Prototypes for local functions */
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static void
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print_subexp PARAMS ((struct expression *, int *, GDB_FILE *, enum precedence));
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void
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print_expression (exp, stream)
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struct expression *exp;
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GDB_FILE *stream;
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{
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int pc = 0;
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print_subexp (exp, &pc, stream, PREC_NULL);
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}
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/* Print the subexpression of EXP that starts in position POS, on STREAM.
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PREC is the precedence of the surrounding operator;
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if the precedence of the main operator of this subexpression is less,
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parentheses are needed here. */
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static void
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print_subexp (exp, pos, stream, prec)
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register struct expression *exp;
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register int *pos;
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GDB_FILE *stream;
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enum precedence prec;
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{
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register unsigned tem;
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register const struct op_print *op_print_tab;
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register int pc;
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unsigned nargs;
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register char *op_str;
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int assign_modify = 0;
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enum exp_opcode opcode;
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enum precedence myprec = PREC_NULL;
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/* Set to 1 for a right-associative operator. */
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int assoc = 0;
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value_ptr val;
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char *tempstr = NULL;
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op_print_tab = exp->language_defn->la_op_print_tab;
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pc = (*pos)++;
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opcode = exp->elts[pc].opcode;
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switch (opcode)
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{
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/* Common ops */
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case OP_SCOPE:
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myprec = PREC_PREFIX;
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assoc = 0;
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fputs_filtered (type_name_no_tag (exp->elts[pc + 1].type), stream);
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fputs_filtered ("::", stream);
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nargs = longest_to_int (exp->elts[pc + 2].longconst);
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(*pos) += 4 + BYTES_TO_EXP_ELEM (nargs + 1);
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fputs_filtered (&exp->elts[pc + 3].string, stream);
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return;
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case OP_LONG:
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(*pos) += 3;
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value_print (value_from_longest (exp->elts[pc + 1].type,
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exp->elts[pc + 2].longconst),
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stream, 0, Val_no_prettyprint);
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return;
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case OP_DOUBLE:
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(*pos) += 3;
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value_print (value_from_double (exp->elts[pc + 1].type,
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exp->elts[pc + 2].doubleconst),
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stream, 0, Val_no_prettyprint);
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return;
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case OP_VAR_VALUE:
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{
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struct block *b;
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(*pos) += 3;
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b = exp->elts[pc + 1].block;
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if (b != NULL
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&& BLOCK_FUNCTION (b) != NULL
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&& SYMBOL_SOURCE_NAME (BLOCK_FUNCTION (b)) != NULL)
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{
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fputs_filtered (SYMBOL_SOURCE_NAME (BLOCK_FUNCTION (b)), stream);
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fputs_filtered ("::", stream);
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}
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fputs_filtered (SYMBOL_SOURCE_NAME (exp->elts[pc + 2].symbol), stream);
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}
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return;
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case OP_LAST:
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(*pos) += 2;
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fprintf_filtered (stream, "$%d",
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longest_to_int (exp->elts[pc + 1].longconst));
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return;
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case OP_REGISTER:
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(*pos) += 2;
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fprintf_filtered (stream, "$%s",
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reg_names[longest_to_int (exp->elts[pc + 1].longconst)]);
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return;
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case OP_BOOL:
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(*pos) += 2;
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fprintf_filtered (stream, "%s",
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longest_to_int (exp->elts[pc + 1].longconst)
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? "TRUE" : "FALSE");
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return;
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case OP_INTERNALVAR:
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(*pos) += 2;
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fprintf_filtered (stream, "$%s",
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internalvar_name (exp->elts[pc + 1].internalvar));
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return;
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case OP_FUNCALL:
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(*pos) += 2;
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nargs = longest_to_int (exp->elts[pc + 1].longconst);
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print_subexp (exp, pos, stream, PREC_SUFFIX);
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fputs_filtered (" (", stream);
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for (tem = 0; tem < nargs; tem++)
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{
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if (tem != 0)
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fputs_filtered (", ", stream);
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print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
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}
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fputs_filtered (")", stream);
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return;
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case OP_NAME:
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case OP_EXPRSTRING:
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nargs = longest_to_int (exp -> elts[pc + 1].longconst);
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(*pos) += 3 + BYTES_TO_EXP_ELEM (nargs + 1);
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fputs_filtered (&exp->elts[pc + 2].string, stream);
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return;
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case OP_STRING:
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nargs = longest_to_int (exp -> elts[pc + 1].longconst);
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(*pos) += 3 + BYTES_TO_EXP_ELEM (nargs + 1);
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/* LA_PRINT_STRING will print using the current repeat count threshold.
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If necessary, we can temporarily set it to zero, or pass it as an
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additional parameter to LA_PRINT_STRING. -fnf */
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LA_PRINT_STRING (stream, &exp->elts[pc + 2].string, nargs, 0);
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return;
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case OP_BITSTRING:
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nargs = longest_to_int (exp -> elts[pc + 1].longconst);
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(*pos)
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+= 3 + BYTES_TO_EXP_ELEM ((nargs + HOST_CHAR_BIT - 1) / HOST_CHAR_BIT);
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fprintf (stream, "B'<unimplemented>'");
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return;
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case OP_ARRAY:
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(*pos) += 3;
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nargs = longest_to_int (exp->elts[pc + 2].longconst);
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nargs -= longest_to_int (exp->elts[pc + 1].longconst);
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nargs++;
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tem = 0;
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if (exp->elts[pc + 4].opcode == OP_LONG
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&& exp->elts[pc + 5].type == builtin_type_char
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&& exp->language_defn->la_language == language_c)
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{
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/* Attempt to print C character arrays using string syntax.
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Walk through the args, picking up one character from each
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of the OP_LONG expression elements. If any array element
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does not match our expection of what we should find for
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a simple string, revert back to array printing. Note that
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the last expression element is an explicit null terminator
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byte, which doesn't get printed. */
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tempstr = alloca (nargs);
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pc += 4;
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while (tem < nargs)
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{
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if (exp->elts[pc].opcode != OP_LONG
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|| exp->elts[pc + 1].type != builtin_type_char)
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{
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/* Not a simple array of char, use regular array printing. */
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tem = 0;
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break;
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}
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else
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{
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tempstr[tem++] =
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longest_to_int (exp->elts[pc + 2].longconst);
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pc += 4;
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}
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}
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}
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if (tem > 0)
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{
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LA_PRINT_STRING (stream, tempstr, nargs - 1, 0);
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(*pos) = pc;
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}
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else
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{
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int is_chill = exp->language_defn->la_language == language_chill;
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fputs_filtered (is_chill ? " [" : " {", stream);
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for (tem = 0; tem < nargs; tem++)
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{
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if (tem != 0)
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{
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fputs_filtered (", ", stream);
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}
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print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
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}
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fputs_filtered (is_chill ? "]" : "}", stream);
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}
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return;
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case OP_LABELED:
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tem = longest_to_int (exp->elts[pc + 1].longconst);
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(*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
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if (exp->language_defn->la_language == language_chill)
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{
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fputs_filtered (".", stream);
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fputs_filtered (&exp->elts[pc + 2].string, stream);
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fputs_filtered (exp->elts[*pos].opcode == OP_LABELED ? ", "
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: ": ",
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stream);
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}
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else
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{
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/* Gcc support both these syntaxes. Unsure which is preferred. */
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#if 1
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fputs_filtered (&exp->elts[pc + 2].string, stream);
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fputs_filtered (": ", stream);
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#else
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fputs_filtered (".", stream);
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fputs_filtered (&exp->elts[pc + 2].string, stream);
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fputs_filtered ("=", stream);
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#endif
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}
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print_subexp (exp, pos, stream, PREC_SUFFIX);
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return;
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case TERNOP_COND:
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if ((int) prec > (int) PREC_COMMA)
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fputs_filtered ("(", stream);
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/* Print the subexpressions, forcing parentheses
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around any binary operations within them.
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This is more parentheses than are strictly necessary,
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but it looks clearer. */
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print_subexp (exp, pos, stream, PREC_HYPER);
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fputs_filtered (" ? ", stream);
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print_subexp (exp, pos, stream, PREC_HYPER);
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fputs_filtered (" : ", stream);
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print_subexp (exp, pos, stream, PREC_HYPER);
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if ((int) prec > (int) PREC_COMMA)
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fputs_filtered (")", stream);
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return;
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case TERNOP_SLICE:
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case TERNOP_SLICE_COUNT:
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print_subexp (exp, pos, stream, PREC_SUFFIX);
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fputs_filtered ("(", stream);
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print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
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fputs_filtered (opcode == TERNOP_SLICE ? " : " : " UP ", stream);
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print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
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fputs_filtered (")", stream);
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return;
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case STRUCTOP_STRUCT:
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tem = longest_to_int (exp->elts[pc + 1].longconst);
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(*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
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print_subexp (exp, pos, stream, PREC_SUFFIX);
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fputs_filtered (".", stream);
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fputs_filtered (&exp->elts[pc + 2].string, stream);
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return;
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/* Will not occur for Modula-2 */
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case STRUCTOP_PTR:
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tem = longest_to_int (exp->elts[pc + 1].longconst);
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(*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
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print_subexp (exp, pos, stream, PREC_SUFFIX);
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fputs_filtered ("->", stream);
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fputs_filtered (&exp->elts[pc + 2].string, stream);
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return;
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case BINOP_SUBSCRIPT:
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print_subexp (exp, pos, stream, PREC_SUFFIX);
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fputs_filtered ("[", stream);
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print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
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fputs_filtered ("]", stream);
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return;
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case UNOP_POSTINCREMENT:
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print_subexp (exp, pos, stream, PREC_SUFFIX);
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fputs_filtered ("++", stream);
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return;
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case UNOP_POSTDECREMENT:
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print_subexp (exp, pos, stream, PREC_SUFFIX);
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fputs_filtered ("--", stream);
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return;
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case UNOP_CAST:
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(*pos) += 2;
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if ((int) prec > (int) PREC_PREFIX)
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fputs_filtered ("(", stream);
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fputs_filtered ("(", stream);
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type_print (exp->elts[pc + 1].type, "", stream, 0);
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fputs_filtered (") ", stream);
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print_subexp (exp, pos, stream, PREC_PREFIX);
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if ((int) prec > (int) PREC_PREFIX)
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fputs_filtered (")", stream);
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return;
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case UNOP_MEMVAL:
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(*pos) += 2;
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if ((int) prec > (int) PREC_PREFIX)
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fputs_filtered ("(", stream);
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if (exp->elts[pc + 1].type->code == TYPE_CODE_FUNC &&
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exp->elts[pc + 3].opcode == OP_LONG) {
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/* We have a minimal symbol fn, probably. It's encoded
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as a UNOP_MEMVAL (function-type) of an OP_LONG (int, address).
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Swallow the OP_LONG (including both its opcodes); ignore
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its type; print the value in the type of the MEMVAL. */
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(*pos) += 4;
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val = value_at_lazy (exp->elts[pc + 1].type,
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(CORE_ADDR) exp->elts[pc + 5].longconst,
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NULL);
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value_print (val, stream, 0, Val_no_prettyprint);
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} else {
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fputs_filtered ("{", stream);
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type_print (exp->elts[pc + 1].type, "", stream, 0);
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fputs_filtered ("} ", stream);
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print_subexp (exp, pos, stream, PREC_PREFIX);
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}
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if ((int) prec > (int) PREC_PREFIX)
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fputs_filtered (")", stream);
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return;
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case BINOP_ASSIGN_MODIFY:
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opcode = exp->elts[pc + 1].opcode;
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(*pos) += 2;
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myprec = PREC_ASSIGN;
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assoc = 1;
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assign_modify = 1;
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op_str = "???";
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for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
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if (op_print_tab[tem].opcode == opcode)
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{
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op_str = op_print_tab[tem].string;
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break;
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}
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if (op_print_tab[tem].opcode != opcode)
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/* Not found; don't try to keep going because we don't know how
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to interpret further elements. */
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error ("Invalid expression");
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break;
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/* C++ ops */
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case OP_THIS:
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++(*pos);
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fputs_filtered ("this", stream);
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return;
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/* Modula-2 ops */
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case MULTI_SUBSCRIPT:
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(*pos) += 2;
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nargs = longest_to_int (exp->elts[pc + 1].longconst);
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print_subexp (exp, pos, stream, PREC_SUFFIX);
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fprintf_unfiltered (stream, " [");
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for (tem = 0; tem < nargs; tem++)
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{
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if (tem != 0)
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fprintf_unfiltered (stream, ", ");
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print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
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}
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fprintf_unfiltered (stream, "]");
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return;
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case BINOP_VAL:
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(*pos)+=2;
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fprintf_unfiltered(stream,"VAL(");
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type_print(exp->elts[pc+1].type,"",stream,0);
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fprintf_unfiltered(stream,",");
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print_subexp(exp,pos,stream,PREC_PREFIX);
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fprintf_unfiltered(stream,")");
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return;
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case BINOP_INCL:
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case BINOP_EXCL:
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error("print_subexp: Not implemented.");
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/* Default ops */
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default:
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op_str = "???";
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for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
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if (op_print_tab[tem].opcode == opcode)
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{
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op_str = op_print_tab[tem].string;
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myprec = op_print_tab[tem].precedence;
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assoc = op_print_tab[tem].right_assoc;
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break;
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}
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if (op_print_tab[tem].opcode != opcode)
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/* Not found; don't try to keep going because we don't know how
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to interpret further elements. For example, this happens
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if opcode is OP_TYPE. */
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error ("Invalid expression");
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}
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/* Note that PREC_BUILTIN will always emit parentheses. */
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if ((int) myprec < (int) prec)
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fputs_filtered ("(", stream);
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if ((int) opcode > (int) BINOP_END)
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{
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if (assoc)
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{
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/* Unary postfix operator. */
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print_subexp (exp, pos, stream, PREC_SUFFIX);
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fputs_filtered (op_str, stream);
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}
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else
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{
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/* Unary prefix operator. */
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fputs_filtered (op_str, stream);
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if (myprec == PREC_BUILTIN_FUNCTION)
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fputs_filtered ("(", stream);
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print_subexp (exp, pos, stream, PREC_PREFIX);
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if (myprec == PREC_BUILTIN_FUNCTION)
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fputs_filtered (")", stream);
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}
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}
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else
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{
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/* Binary operator. */
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/* Print left operand.
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If operator is right-associative,
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increment precedence for this operand. */
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print_subexp (exp, pos, stream,
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(enum precedence) ((int) myprec + assoc));
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/* Print the operator itself. */
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if (assign_modify)
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fprintf_filtered (stream, " %s= ", op_str);
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else if (op_str[0] == ',')
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fprintf_filtered (stream, "%s ", op_str);
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else
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fprintf_filtered (stream, " %s ", op_str);
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/* Print right operand.
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If operator is left-associative,
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increment precedence for this operand. */
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print_subexp (exp, pos, stream,
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(enum precedence) ((int) myprec + !assoc));
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}
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if ((int) myprec < (int) prec)
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fputs_filtered (")", stream);
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}
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/* Return the operator corresponding to opcode OP as
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a string. NULL indicates that the opcode was not found in the
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current language table. */
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char *
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op_string(op)
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enum exp_opcode op;
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{
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int tem;
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register const struct op_print *op_print_tab;
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op_print_tab = current_language->la_op_print_tab;
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for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
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if (op_print_tab[tem].opcode == op)
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return op_print_tab[tem].string;
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return NULL;
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}
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#ifdef MAINTENANCE_CMDS
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/* Support for dumping the raw data from expressions in a human readable
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form. */
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void
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dump_prefix_expression (exp, stream, note)
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struct expression *exp;
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GDB_FILE *stream;
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char *note;
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{
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int elt;
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char *opcode_name;
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char *eltscan;
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int eltsize;
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fprintf_filtered (stream, "Dump of expression @ ");
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gdb_print_address (exp, stream);
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fprintf_filtered (stream, ", %s:\nExpression: `", note);
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print_expression (exp, stream);
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fprintf_filtered (stream, "'\n\tLanguage %s, %d elements, %d bytes each.\n",
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exp->language_defn->la_name, exp -> nelts,
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sizeof (union exp_element));
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fprintf_filtered (stream, "\t%5s %20s %16s %s\n", "Index", "Opcode",
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"Hex Value", "String Value");
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for (elt = 0; elt < exp -> nelts; elt++)
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{
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fprintf_filtered (stream, "\t%5d ", elt);
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switch (exp -> elts[elt].opcode)
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{
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default: opcode_name = "<unknown>"; break;
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case OP_NULL: opcode_name = "OP_NULL"; break;
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case BINOP_ADD: opcode_name = "BINOP_ADD"; break;
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case BINOP_SUB: opcode_name = "BINOP_SUB"; break;
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case BINOP_MUL: opcode_name = "BINOP_MUL"; break;
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case BINOP_DIV: opcode_name = "BINOP_DIV"; break;
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case BINOP_REM: opcode_name = "BINOP_REM"; break;
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case BINOP_MOD: opcode_name = "BINOP_MOD"; break;
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case BINOP_LSH: opcode_name = "BINOP_LSH"; break;
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case BINOP_RSH: opcode_name = "BINOP_RSH"; break;
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case BINOP_LOGICAL_AND: opcode_name = "BINOP_LOGICAL_AND"; break;
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case BINOP_LOGICAL_OR: opcode_name = "BINOP_LOGICAL_OR"; break;
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case BINOP_BITWISE_AND: opcode_name = "BINOP_BITWISE_AND"; break;
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case BINOP_BITWISE_IOR: opcode_name = "BINOP_BITWISE_IOR"; break;
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case BINOP_BITWISE_XOR: opcode_name = "BINOP_BITWISE_XOR"; break;
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case BINOP_EQUAL: opcode_name = "BINOP_EQUAL"; break;
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case BINOP_NOTEQUAL: opcode_name = "BINOP_NOTEQUAL"; break;
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case BINOP_LESS: opcode_name = "BINOP_LESS"; break;
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case BINOP_GTR: opcode_name = "BINOP_GTR"; break;
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case BINOP_LEQ: opcode_name = "BINOP_LEQ"; break;
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case BINOP_GEQ: opcode_name = "BINOP_GEQ"; break;
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case BINOP_REPEAT: opcode_name = "BINOP_REPEAT"; break;
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case BINOP_ASSIGN: opcode_name = "BINOP_ASSIGN"; break;
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case BINOP_COMMA: opcode_name = "BINOP_COMMA"; break;
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case BINOP_SUBSCRIPT: opcode_name = "BINOP_SUBSCRIPT"; break;
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case MULTI_SUBSCRIPT: opcode_name = "MULTI_SUBSCRIPT"; break;
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case BINOP_EXP: opcode_name = "BINOP_EXP"; break;
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case BINOP_MIN: opcode_name = "BINOP_MIN"; break;
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case BINOP_MAX: opcode_name = "BINOP_MAX"; break;
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case BINOP_SCOPE: opcode_name = "BINOP_SCOPE"; break;
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case STRUCTOP_MEMBER: opcode_name = "STRUCTOP_MEMBER"; break;
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case STRUCTOP_MPTR: opcode_name = "STRUCTOP_MPTR"; break;
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case BINOP_INTDIV: opcode_name = "BINOP_INTDIV"; break;
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case BINOP_ASSIGN_MODIFY: opcode_name = "BINOP_ASSIGN_MODIFY"; break;
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case BINOP_VAL: opcode_name = "BINOP_VAL"; break;
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case BINOP_INCL: opcode_name = "BINOP_INCL"; break;
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case BINOP_EXCL: opcode_name = "BINOP_EXCL"; break;
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case BINOP_CONCAT: opcode_name = "BINOP_CONCAT"; break;
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case BINOP_RANGE: opcode_name = "BINOP_RANGE"; break;
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case BINOP_END: opcode_name = "BINOP_END"; break;
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case TERNOP_COND: opcode_name = "TERNOP_COND"; break;
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case TERNOP_SLICE: opcode_name = "TERNOP_SLICE"; break;
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case TERNOP_SLICE_COUNT: opcode_name = "TERNOP_SLICE_COUNT"; break;
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case OP_LONG: opcode_name = "OP_LONG"; break;
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case OP_DOUBLE: opcode_name = "OP_DOUBLE"; break;
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case OP_VAR_VALUE: opcode_name = "OP_VAR_VALUE"; break;
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case OP_LAST: opcode_name = "OP_LAST"; break;
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case OP_REGISTER: opcode_name = "OP_REGISTER"; break;
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case OP_INTERNALVAR: opcode_name = "OP_INTERNALVAR"; break;
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case OP_FUNCALL: opcode_name = "OP_FUNCALL"; break;
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case OP_STRING: opcode_name = "OP_STRING"; break;
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case OP_BITSTRING: opcode_name = "OP_BITSTRING"; break;
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case OP_ARRAY: opcode_name = "OP_ARRAY"; break;
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case UNOP_CAST: opcode_name = "UNOP_CAST"; break;
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case UNOP_MEMVAL: opcode_name = "UNOP_MEMVAL"; break;
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case UNOP_NEG: opcode_name = "UNOP_NEG"; break;
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case UNOP_LOGICAL_NOT: opcode_name = "UNOP_LOGICAL_NOT"; break;
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case UNOP_COMPLEMENT: opcode_name = "UNOP_COMPLEMENT"; break;
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case UNOP_IND: opcode_name = "UNOP_IND"; break;
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case UNOP_ADDR: opcode_name = "UNOP_ADDR"; break;
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case UNOP_PREINCREMENT: opcode_name = "UNOP_PREINCREMENT"; break;
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case UNOP_POSTINCREMENT: opcode_name = "UNOP_POSTINCREMENT"; break;
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case UNOP_PREDECREMENT: opcode_name = "UNOP_PREDECREMENT"; break;
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case UNOP_POSTDECREMENT: opcode_name = "UNOP_POSTDECREMENT"; break;
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case UNOP_SIZEOF: opcode_name = "UNOP_SIZEOF"; break;
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case UNOP_LOWER: opcode_name = "UNOP_LOWER"; break;
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case UNOP_UPPER: opcode_name = "UNOP_UPPER"; break;
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case UNOP_LENGTH: opcode_name = "UNOP_LENGTH"; break;
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case UNOP_PLUS: opcode_name = "UNOP_PLUS"; break;
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case UNOP_CAP: opcode_name = "UNOP_CAP"; break;
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case UNOP_CHR: opcode_name = "UNOP_CHR"; break;
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case UNOP_ORD: opcode_name = "UNOP_ORD"; break;
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case UNOP_ABS: opcode_name = "UNOP_ABS"; break;
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case UNOP_FLOAT: opcode_name = "UNOP_FLOAT"; break;
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case UNOP_HIGH: opcode_name = "UNOP_HIGH"; break;
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case UNOP_MAX: opcode_name = "UNOP_MAX"; break;
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case UNOP_MIN: opcode_name = "UNOP_MIN"; break;
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case UNOP_ODD: opcode_name = "UNOP_ODD"; break;
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case UNOP_TRUNC: opcode_name = "UNOP_TRUNC"; break;
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case OP_BOOL: opcode_name = "OP_BOOL"; break;
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case OP_M2_STRING: opcode_name = "OP_M2_STRING"; break;
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case STRUCTOP_STRUCT: opcode_name = "STRUCTOP_STRUCT"; break;
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case STRUCTOP_PTR: opcode_name = "STRUCTOP_PTR"; break;
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case OP_THIS: opcode_name = "OP_THIS"; break;
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case OP_SCOPE: opcode_name = "OP_SCOPE"; break;
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case OP_TYPE: opcode_name = "OP_TYPE"; break;
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case OP_LABELED: opcode_name = "OP_LABELED"; break;
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}
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fprintf_filtered (stream, "%20s ", opcode_name);
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print_longest (stream, 'd', 0, exp -> elts[elt].longconst);
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fprintf_filtered (stream, " ");
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for (eltscan = (char *) &exp->elts[elt],
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eltsize = sizeof (union exp_element) ;
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eltsize-- > 0;
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eltscan++)
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{
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fprintf_filtered (stream, "%c",
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isprint (*eltscan) ? (*eltscan & 0xFF) : '.');
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}
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fprintf_filtered (stream, "\n");
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}
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}
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static int dump_subexp PARAMS ((struct expression *exp, GDB_FILE *stream, int elt));
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static int
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dump_subexp (exp, stream, elt)
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struct expression *exp;
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GDB_FILE *stream;
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int elt;
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{
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char *opcode_name;
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static int indent = 0;
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int i;
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fprintf_filtered (stream, "\n");
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fprintf_filtered (stream, "\t%5d ", elt);
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for (i = 1; i <= indent; i++)
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fprintf_filtered (stream, " ");
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indent += 2;
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switch (exp -> elts[elt].opcode)
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{
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default: opcode_name = "<unknown>"; break;
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case OP_NULL: opcode_name = "OP_NULL"; break;
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case BINOP_ADD: opcode_name = "BINOP_ADD"; break;
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case BINOP_SUB: opcode_name = "BINOP_SUB"; break;
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case BINOP_MUL: opcode_name = "BINOP_MUL"; break;
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case BINOP_DIV: opcode_name = "BINOP_DIV"; break;
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case BINOP_REM: opcode_name = "BINOP_REM"; break;
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case BINOP_MOD: opcode_name = "BINOP_MOD"; break;
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case BINOP_LSH: opcode_name = "BINOP_LSH"; break;
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case BINOP_RSH: opcode_name = "BINOP_RSH"; break;
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case BINOP_LOGICAL_AND: opcode_name = "BINOP_LOGICAL_AND"; break;
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case BINOP_LOGICAL_OR: opcode_name = "BINOP_LOGICAL_OR"; break;
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case BINOP_BITWISE_AND: opcode_name = "BINOP_BITWISE_AND"; break;
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case BINOP_BITWISE_IOR: opcode_name = "BINOP_BITWISE_IOR"; break;
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case BINOP_BITWISE_XOR: opcode_name = "BINOP_BITWISE_XOR"; break;
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case BINOP_EQUAL: opcode_name = "BINOP_EQUAL"; break;
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case BINOP_NOTEQUAL: opcode_name = "BINOP_NOTEQUAL"; break;
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case BINOP_LESS: opcode_name = "BINOP_LESS"; break;
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case BINOP_GTR: opcode_name = "BINOP_GTR"; break;
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case BINOP_LEQ: opcode_name = "BINOP_LEQ"; break;
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case BINOP_GEQ: opcode_name = "BINOP_GEQ"; break;
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case BINOP_REPEAT: opcode_name = "BINOP_REPEAT"; break;
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case BINOP_ASSIGN: opcode_name = "BINOP_ASSIGN"; break;
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case BINOP_COMMA: opcode_name = "BINOP_COMMA"; break;
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case BINOP_SUBSCRIPT: opcode_name = "BINOP_SUBSCRIPT"; break;
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case MULTI_SUBSCRIPT: opcode_name = "MULTI_SUBSCRIPT"; break;
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case BINOP_EXP: opcode_name = "BINOP_EXP"; break;
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case BINOP_MIN: opcode_name = "BINOP_MIN"; break;
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case BINOP_MAX: opcode_name = "BINOP_MAX"; break;
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case BINOP_SCOPE: opcode_name = "BINOP_SCOPE"; break;
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case STRUCTOP_MEMBER: opcode_name = "STRUCTOP_MEMBER"; break;
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case STRUCTOP_MPTR: opcode_name = "STRUCTOP_MPTR"; break;
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case BINOP_INTDIV: opcode_name = "BINOP_INTDIV"; break;
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case BINOP_ASSIGN_MODIFY: opcode_name = "BINOP_ASSIGN_MODIFY"; break;
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case BINOP_VAL: opcode_name = "BINOP_VAL"; break;
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case BINOP_INCL: opcode_name = "BINOP_INCL"; break;
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case BINOP_EXCL: opcode_name = "BINOP_EXCL"; break;
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case BINOP_CONCAT: opcode_name = "BINOP_CONCAT"; break;
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case BINOP_RANGE: opcode_name = "BINOP_RANGE"; break;
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case BINOP_END: opcode_name = "BINOP_END"; break;
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case TERNOP_COND: opcode_name = "TERNOP_COND"; break;
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case TERNOP_SLICE: opcode_name = "TERNOP_SLICE"; break;
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case TERNOP_SLICE_COUNT: opcode_name = "TERNOP_SLICE_COUNT"; break;
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case OP_LONG: opcode_name = "OP_LONG"; break;
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case OP_DOUBLE: opcode_name = "OP_DOUBLE"; break;
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case OP_VAR_VALUE: opcode_name = "OP_VAR_VALUE"; break;
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case OP_LAST: opcode_name = "OP_LAST"; break;
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case OP_REGISTER: opcode_name = "OP_REGISTER"; break;
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case OP_INTERNALVAR: opcode_name = "OP_INTERNALVAR"; break;
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case OP_FUNCALL: opcode_name = "OP_FUNCALL"; break;
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case OP_STRING: opcode_name = "OP_STRING"; break;
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case OP_BITSTRING: opcode_name = "OP_BITSTRING"; break;
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case OP_ARRAY: opcode_name = "OP_ARRAY"; break;
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case UNOP_CAST: opcode_name = "UNOP_CAST"; break;
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case UNOP_MEMVAL: opcode_name = "UNOP_MEMVAL"; break;
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case UNOP_NEG: opcode_name = "UNOP_NEG"; break;
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case UNOP_LOGICAL_NOT: opcode_name = "UNOP_LOGICAL_NOT"; break;
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case UNOP_COMPLEMENT: opcode_name = "UNOP_COMPLEMENT"; break;
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case UNOP_IND: opcode_name = "UNOP_IND"; break;
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case UNOP_ADDR: opcode_name = "UNOP_ADDR"; break;
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case UNOP_PREINCREMENT: opcode_name = "UNOP_PREINCREMENT"; break;
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case UNOP_POSTINCREMENT: opcode_name = "UNOP_POSTINCREMENT"; break;
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case UNOP_PREDECREMENT: opcode_name = "UNOP_PREDECREMENT"; break;
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case UNOP_POSTDECREMENT: opcode_name = "UNOP_POSTDECREMENT"; break;
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case UNOP_SIZEOF: opcode_name = "UNOP_SIZEOF"; break;
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case UNOP_LOWER: opcode_name = "UNOP_LOWER"; break;
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case UNOP_UPPER: opcode_name = "UNOP_UPPER"; break;
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case UNOP_LENGTH: opcode_name = "UNOP_LENGTH"; break;
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case UNOP_PLUS: opcode_name = "UNOP_PLUS"; break;
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case UNOP_CAP: opcode_name = "UNOP_CAP"; break;
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case UNOP_CHR: opcode_name = "UNOP_CHR"; break;
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case UNOP_ORD: opcode_name = "UNOP_ORD"; break;
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case UNOP_ABS: opcode_name = "UNOP_ABS"; break;
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case UNOP_FLOAT: opcode_name = "UNOP_FLOAT"; break;
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case UNOP_HIGH: opcode_name = "UNOP_HIGH"; break;
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case UNOP_MAX: opcode_name = "UNOP_MAX"; break;
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case UNOP_MIN: opcode_name = "UNOP_MIN"; break;
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case UNOP_ODD: opcode_name = "UNOP_ODD"; break;
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case UNOP_TRUNC: opcode_name = "UNOP_TRUNC"; break;
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case OP_BOOL: opcode_name = "OP_BOOL"; break;
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case OP_M2_STRING: opcode_name = "OP_M2_STRING"; break;
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case STRUCTOP_STRUCT: opcode_name = "STRUCTOP_STRUCT"; break;
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case STRUCTOP_PTR: opcode_name = "STRUCTOP_PTR"; break;
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case OP_THIS: opcode_name = "OP_THIS"; break;
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case OP_SCOPE: opcode_name = "OP_SCOPE"; break;
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case OP_TYPE: opcode_name = "OP_TYPE"; break;
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case OP_LABELED: opcode_name = "OP_LABELED"; break;
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}
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fprintf_filtered (stream, "%-20s ", opcode_name);
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switch (exp -> elts[elt++].opcode)
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{
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case TERNOP_COND:
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case TERNOP_SLICE:
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case TERNOP_SLICE_COUNT:
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elt = dump_subexp (exp, stream, elt);
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case BINOP_ADD:
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case BINOP_SUB:
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case BINOP_MUL:
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case BINOP_DIV:
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case BINOP_REM:
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case BINOP_MOD:
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case BINOP_LSH:
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case BINOP_RSH:
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case BINOP_LOGICAL_AND:
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case BINOP_LOGICAL_OR:
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case BINOP_BITWISE_AND:
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case BINOP_BITWISE_IOR:
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case BINOP_BITWISE_XOR:
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case BINOP_EQUAL:
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case BINOP_NOTEQUAL:
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case BINOP_LESS:
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case BINOP_GTR:
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case BINOP_LEQ:
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case BINOP_GEQ:
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case BINOP_REPEAT:
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case BINOP_ASSIGN:
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case BINOP_COMMA:
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case BINOP_SUBSCRIPT:
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case BINOP_EXP:
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case BINOP_MIN:
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case BINOP_MAX:
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case BINOP_SCOPE:
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case BINOP_INTDIV:
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case BINOP_ASSIGN_MODIFY:
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case BINOP_VAL:
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case BINOP_INCL:
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case BINOP_EXCL:
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case BINOP_CONCAT:
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case BINOP_IN:
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case BINOP_RANGE:
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case BINOP_END:
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elt = dump_subexp (exp, stream, elt);
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case UNOP_NEG:
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case UNOP_LOGICAL_NOT:
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case UNOP_COMPLEMENT:
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case UNOP_IND:
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case UNOP_ADDR:
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case UNOP_PREINCREMENT:
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case UNOP_POSTINCREMENT:
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case UNOP_PREDECREMENT:
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case UNOP_POSTDECREMENT:
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case UNOP_SIZEOF:
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case UNOP_PLUS:
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case UNOP_CAP:
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case UNOP_CHR:
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case UNOP_ORD:
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case UNOP_ABS:
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case UNOP_FLOAT:
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case UNOP_HIGH:
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case UNOP_MAX:
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case UNOP_MIN:
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case UNOP_ODD:
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case UNOP_TRUNC:
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case UNOP_LOWER:
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case UNOP_UPPER:
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case UNOP_LENGTH:
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case UNOP_CARD:
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case UNOP_CHMAX:
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case UNOP_CHMIN:
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elt = dump_subexp (exp, stream, elt);
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break;
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case OP_LONG:
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fprintf_filtered (stream, "Type @0x%x (", exp->elts[elt].type);
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type_print (exp->elts[elt].type, NULL, stream, 0);
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fprintf_filtered (stream, "), value %ld (0x%lx)",
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(long)exp->elts[elt+1].longconst,
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(long)exp->elts[elt+1].longconst);
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elt += 3;
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break;
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case OP_DOUBLE:
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fprintf_filtered (stream, "Type @0x%x (", exp->elts[elt].type);
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type_print (exp->elts[elt].type, NULL, stream, 0);
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fprintf_filtered (stream, "), value %g",
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(double)exp->elts[elt+1].doubleconst);
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elt += 3;
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break;
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case OP_VAR_VALUE:
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fprintf_filtered (stream, "Block @0x%x, symbol @0x%x (%s)",
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exp->elts[elt].block,
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exp->elts[elt+1].symbol,
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SYMBOL_NAME (exp->elts[elt+1].symbol));
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elt += 3;
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break;
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case OP_LAST:
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fprintf_filtered (stream, "History element %ld",
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(long)exp->elts[elt].longconst);
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elt += 2;
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break;
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case OP_REGISTER:
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fprintf_filtered (stream, "Register %ld",
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(long)exp->elts[elt].longconst);
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elt += 2;
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break;
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case OP_INTERNALVAR:
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fprintf_filtered (stream, "Internal var @0x%x (%s)",
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exp->elts[elt].internalvar,
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|
exp->elts[elt].internalvar->name);
|
|
elt += 2;
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break;
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case OP_FUNCALL:
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{
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int nargs;
|
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nargs = longest_to_int (exp->elts[elt].longconst);
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|
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fprintf_filtered (stream, "Number of args: %d", nargs);
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elt += 2;
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for (i = 1; i <= nargs + 1; i++)
|
|
elt = dump_subexp (exp, stream, elt);
|
|
}
|
|
break;
|
|
case OP_ARRAY:
|
|
{
|
|
int lower, upper;
|
|
int i;
|
|
|
|
lower = longest_to_int (exp->elts[elt].longconst);
|
|
upper = longest_to_int (exp->elts[elt + 1].longconst);
|
|
|
|
fprintf_filtered (stream, "Bounds [%d:%d]", lower, upper);
|
|
elt += 3;
|
|
|
|
for (i = 1; i <= upper - lower + 1; i++)
|
|
elt = dump_subexp (exp, stream, elt);
|
|
}
|
|
break;
|
|
case UNOP_MEMVAL:
|
|
case UNOP_CAST:
|
|
fprintf_filtered (stream, "Type @0x%x (",
|
|
exp->elts[elt].type);
|
|
type_print (exp->elts[elt].type, NULL, stream, 0);
|
|
fprintf_filtered (stream, ")");
|
|
elt = dump_subexp (exp, stream, elt + 2);
|
|
break;
|
|
case OP_TYPE:
|
|
fprintf_filtered (stream, "Type @0x%x (",
|
|
exp->elts[elt].type);
|
|
type_print (exp->elts[elt].type, NULL, stream, 0);
|
|
fprintf_filtered (stream, ")");
|
|
elt += 2;
|
|
break;
|
|
case STRUCTOP_STRUCT:
|
|
case STRUCTOP_PTR:
|
|
{
|
|
char *elem_name;
|
|
int len;
|
|
|
|
len = longest_to_int (exp->elts[elt].longconst);
|
|
elem_name = &exp->elts[elt + 1].string;
|
|
|
|
fprintf_filtered (stream, "Element name: `%.*s'", len, elem_name);
|
|
elt = dump_subexp (exp, stream, elt + 3 + BYTES_TO_EXP_ELEM (len + 1));
|
|
}
|
|
break;
|
|
|
|
default:
|
|
case OP_NULL:
|
|
case STRUCTOP_MEMBER:
|
|
case STRUCTOP_MPTR:
|
|
case MULTI_SUBSCRIPT:
|
|
case OP_F77_UNDETERMINED_ARGLIST:
|
|
case OP_COMPLEX:
|
|
case OP_STRING:
|
|
case OP_BITSTRING:
|
|
case OP_BOOL:
|
|
case OP_M2_STRING:
|
|
case OP_THIS:
|
|
case OP_SCOPE:
|
|
case OP_LABELED:
|
|
case OP_NAME:
|
|
case OP_EXPRSTRING:
|
|
fprintf_filtered (stream, "Unknown format");
|
|
}
|
|
|
|
indent -= 2;
|
|
|
|
return elt;
|
|
}
|
|
|
|
void
|
|
dump_postfix_expression (exp, stream, note)
|
|
struct expression *exp;
|
|
GDB_FILE *stream;
|
|
char *note;
|
|
{
|
|
int elt;
|
|
|
|
fprintf_filtered (stream, "Dump of expression @ ");
|
|
gdb_print_address (exp, stream);
|
|
fprintf_filtered (stream, ", %s:\nExpression: `", note);
|
|
/* XXX - doesn't work for types print_expression (exp, stream);*/
|
|
fprintf_filtered (stream, "'\n\tLanguage %s, %d elements, %d bytes each.\n",
|
|
exp->language_defn->la_name, exp -> nelts,
|
|
sizeof (union exp_element));
|
|
fprintf_filtered (stream, "\t%5s %20s %16s %s\n", "Index", "Opcode",
|
|
"Hex Value", "String Value");
|
|
|
|
for (elt = 0; elt < exp -> nelts;)
|
|
elt = dump_subexp (exp, stream, elt);
|
|
fprintf_filtered (stream, "\n");
|
|
}
|
|
|
|
#endif /* MAINTENANCE_CMDS */
|