Modified from expread.y by the Department of Computer Science at the
State University of New York at Buffalo, 1991.
-This file is part of GDB.
+ This file is part of GDB.
-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 2 of the License, or
-(at your option) any later version.
+ 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 2 of the License, 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.
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
/* Parse an expression from text in a string,
and return the result as a struct expression pointer.
What is important here is that it can be built up sequentially
during the process of parsing; the lower levels of the tree always
come first in the result. */
-
+
#include <ctype.h>
#include "defs.h"
#include "language.h"
#include "parser-defs.h"
#include "gdbcmd.h"
-#include "symfile.h" /* for overlay functions */
+#include "symfile.h" /* for overlay functions */
\f
/* Global variables declared in parser-defs.h (and commented there). */
struct expression *expout;
systems standard names can be context dependent (eg. $pc on a
multiprocessor can be could be any of several PCs). */
#ifdef REGISTER_NAME_ALIAS_HOOK
- i = REGISTER_NAME_ALIAS_HOOK (str, len);
+ i = REGISTER_NAME_ALIAS_HOOK (str, len);
if (i >= 0)
return i;
#endif
register struct funcall *call = funcall_chain;
funcall_chain = call->next;
arglist_len = call->arglist_len;
- free ((PTR)call);
+ free ((PTR) call);
return val;
}
for (call = funcall_chain; call; call = next)
{
next = call->next;
- free ((PTR)call);
+ free ((PTR) call);
}
}
\f
if (overlay_debugging)
addr = symbol_overlayed_address (addr, SYMBOL_BFD_SECTION (msymbol));
write_exp_elt_longcst ((LONGEST) addr);
-
+
write_exp_elt_opcode (OP_LONG);
write_exp_elt_opcode (UNOP_MEMVAL);
- switch (msymbol -> type)
+ switch (msymbol->type)
{
case mst_text:
case mst_file_text:
\f
/* Recognize tokens that start with '$'. These include:
- $regname A native register name or a "standard
- register name".
+ $regname A native register name or a "standard
+ register name".
- $variable A convenience variable with a name chosen
- by the user.
+ $variable A convenience variable with a name chosen
+ by the user.
- $digits Value history with index <digits>, starting
- from the first value which has index 1.
+ $digits Value history with index <digits>, starting
+ from the first value which has index 1.
- $$digits Value history with index <digits> relative
- to the last value. I.E. $$0 is the last
- value, $$1 is the one previous to that, $$2
- is the one previous to $$1, etc.
+ $$digits Value history with index <digits> relative
+ to the last value. I.E. $$0 is the last
+ value, $$1 is the one previous to that, $$2
+ is the one previous to $$1, etc.
- $ | $0 | $$0 The last value in the value history.
+ $ | $0 | $$0 The last value in the value history.
- $$ An abbreviation for the second to the last
- value in the value history, I.E. $$1
+ $$ An abbreviation for the second to the last
+ value in the value history, I.E. $$1
- */
+ */
void
write_dollar_variable (str)
/* Handle the tokens $digits; also $ (short for $0) and $$ (short for $$1)
and $$digits (equivalent to $<-digits> if you could type that). */
- struct symbol * sym = NULL;
- struct minimal_symbol * msym = NULL;
+ struct symbol *sym = NULL;
+ struct minimal_symbol *msym = NULL;
int negate = 0;
int i = 1;
if (i == str.length)
{
/* Just dollars (one or two) */
- i = - negate;
+ i = -negate;
goto handle_last;
}
/* Is the rest of the token digits? */
{
i = atoi (str.ptr + 1 + negate);
if (negate)
- i = - i;
+ i = -i;
goto handle_last;
}
-
+
/* Handle tokens that refer to machine registers:
$ followed by a register name. */
- i = target_map_name_to_register( str.ptr + 1, str.length - 1 );
- if( i >= 0 )
+ i = target_map_name_to_register (str.ptr + 1, str.length - 1);
+ if (i >= 0)
goto handle_register;
/* On HP-UX, certain system routines (millicode) have names beginning
calls on PA-RISC. Check for those, first. */
sym = lookup_symbol (copy_name (str), (struct block *) NULL,
- VAR_NAMESPACE, (int *) NULL, (struct symtab **) NULL);
+ VAR_NAMESPACE, (int *) NULL, (struct symtab **) NULL);
if (sym)
{
write_exp_elt_opcode (OP_VAR_VALUE);
- write_exp_elt_block (block_found); /* set by lookup_symbol */
+ write_exp_elt_block (block_found); /* set by lookup_symbol */
write_exp_elt_sym (sym);
write_exp_elt_opcode (OP_VAR_VALUE);
return;
if (msym)
{
write_exp_msymbol (msym,
- lookup_function_type (builtin_type_int),
- builtin_type_int);
+ lookup_function_type (builtin_type_int),
+ builtin_type_int);
return;
}
-
+
/* Any other names starting in $ are debugger internal variables. */
write_exp_elt_opcode (OP_INTERNALVAR);
write_exp_elt_intern (lookup_internalvar (copy_name (str) + 1));
- write_exp_elt_opcode (OP_INTERNALVAR);
+ write_exp_elt_opcode (OP_INTERNALVAR);
return;
- handle_last:
+handle_last:
write_exp_elt_opcode (OP_LAST);
write_exp_elt_longcst ((LONGEST) i);
write_exp_elt_opcode (OP_LAST);
return;
- handle_register:
+handle_register:
write_exp_elt_opcode (OP_REGISTER);
write_exp_elt_longcst (i);
- write_exp_elt_opcode (OP_REGISTER);
+ write_exp_elt_opcode (OP_REGISTER);
return;
}
Callers must free memory allocated for the output string TOKEN. */
-static const char coloncolon[2] = {':',':'};
+static const char coloncolon[2] =
+{':', ':'};
struct symbol *
parse_nested_classes_for_hpacc (name, len, token, class_prefix, argptr)
- char * name;
- int len;
- char ** token;
- int * class_prefix;
- char ** argptr;
+ char *name;
+ int len;
+ char **token;
+ int *class_prefix;
+ char **argptr;
{
- /* Comment below comes from decode_line_1 which has very similar
- code, which is called for "break" command parsing. */
-
- /* We have what looks like a class or namespace
+ /* Comment below comes from decode_line_1 which has very similar
+ code, which is called for "break" command parsing. */
+
+ /* We have what looks like a class or namespace
scope specification (A::B), possibly with many
levels of namespaces or classes (A::B::C::D).
consider *prefixes* of the string; there is no need to look up
"B::C" separately as a symbol in the previous example. */
- register char * p;
- char * start, * end;
- char * prefix = NULL;
- char * tmp;
- struct symbol * sym_class = NULL;
- struct symbol * sym_var = NULL;
- struct type * t;
+ register char *p;
+ char *start, *end;
+ char *prefix = NULL;
+ char *tmp;
+ struct symbol *sym_class = NULL;
+ struct symbol *sym_var = NULL;
+ struct type *t;
register int i;
int colons_found = 0;
int prefix_len = 0;
int done = 0;
- char * q;
+ char *q;
/* Check for HP-compiled executable -- in other cases
return NULL, and caller must default to standard GDB
p = name;
- /* Skip over whitespace and possible global "::" */
- while (*p && (*p == ' ' || *p == '\t')) p++;
+ /* Skip over whitespace and possible global "::" */
+ while (*p && (*p == ' ' || *p == '\t'))
+ p++;
if (p[0] == ':' && p[1] == ':')
p += 2;
- while (*p && (*p == ' ' || *p == '\t')) p++;
-
+ while (*p && (*p == ' ' || *p == '\t'))
+ p++;
+
while (1)
{
/* Get to the end of the next namespace or class spec. */
/* If we're looking at some non-token, fail immediately */
start = p;
if (!(isalpha (*p) || *p == '$' || *p == '_'))
- return (struct symbol *) NULL;
+ return (struct symbol *) NULL;
p++;
- while (*p && (isalnum (*p) || *p == '$' || *p == '_')) p++;
-
- if (*p == '<')
- {
- /* If we have the start of a template specification,
- scan right ahead to its end */
- q = find_template_name_end (p);
- if (q)
- p = q;
- }
-
+ while (*p && (isalnum (*p) || *p == '$' || *p == '_'))
+ p++;
+
+ if (*p == '<')
+ {
+ /* If we have the start of a template specification,
+ scan right ahead to its end */
+ q = find_template_name_end (p);
+ if (q)
+ p = q;
+ }
+
end = p;
- /* Skip over "::" and whitespace for next time around */
- while (*p && (*p == ' ' || *p == '\t')) p++;
+ /* Skip over "::" and whitespace for next time around */
+ while (*p && (*p == ' ' || *p == '\t'))
+ p++;
if (p[0] == ':' && p[1] == ':')
- p += 2;
- while (*p && (*p == ' ' || *p == '\t')) p++;
+ p += 2;
+ while (*p && (*p == ' ' || *p == '\t'))
+ p++;
- /* Done with tokens? */
+ /* Done with tokens? */
if (!*p || !(isalpha (*p) || *p == '$' || *p == '_'))
- done = 1;
+ done = 1;
tmp = (char *) alloca (prefix_len + end - start + 3);
if (prefix)
- {
- memcpy (tmp, prefix, prefix_len);
- memcpy (tmp + prefix_len, coloncolon, 2);
- memcpy (tmp + prefix_len + 2, start, end - start);
- tmp[prefix_len + 2 + end - start] = '\000';
- }
+ {
+ memcpy (tmp, prefix, prefix_len);
+ memcpy (tmp + prefix_len, coloncolon, 2);
+ memcpy (tmp + prefix_len + 2, start, end - start);
+ tmp[prefix_len + 2 + end - start] = '\000';
+ }
else
- {
- memcpy (tmp, start, end - start);
- tmp[end - start] = '\000';
- }
-
+ {
+ memcpy (tmp, start, end - start);
+ tmp[end - start] = '\000';
+ }
+
prefix = tmp;
prefix_len = strlen (prefix);
-
+
/* See if the prefix we have now is something we know about */
- if (!done)
- {
- /* More tokens to process, so this must be a class/namespace */
- sym_class = lookup_symbol (prefix, 0, STRUCT_NAMESPACE,
- 0, (struct symtab **) NULL);
- }
+ if (!done)
+ {
+ /* More tokens to process, so this must be a class/namespace */
+ sym_class = lookup_symbol (prefix, 0, STRUCT_NAMESPACE,
+ 0, (struct symtab **) NULL);
+ }
else
- {
- /* No more tokens, so try as a variable first */
- sym_var = lookup_symbol (prefix, 0, VAR_NAMESPACE,
- 0, (struct symtab **) NULL);
- /* If failed, try as class/namespace */
- if (!sym_var)
- sym_class = lookup_symbol (prefix, 0, STRUCT_NAMESPACE,
- 0, (struct symtab **) NULL);
- }
+ {
+ /* No more tokens, so try as a variable first */
+ sym_var = lookup_symbol (prefix, 0, VAR_NAMESPACE,
+ 0, (struct symtab **) NULL);
+ /* If failed, try as class/namespace */
+ if (!sym_var)
+ sym_class = lookup_symbol (prefix, 0, STRUCT_NAMESPACE,
+ 0, (struct symtab **) NULL);
+ }
if (sym_var ||
- (sym_class &&
- (t = check_typedef (SYMBOL_TYPE (sym_class)),
- (TYPE_CODE (t) == TYPE_CODE_STRUCT
- || TYPE_CODE (t) == TYPE_CODE_UNION))))
- {
- /* We found a valid token */
- *token = (char *) xmalloc (prefix_len + 1 );
- memcpy (*token, prefix, prefix_len);
- (*token)[prefix_len] = '\000';
- break;
- }
-
- /* No variable or class/namespace found, no more tokens */
+ (sym_class &&
+ (t = check_typedef (SYMBOL_TYPE (sym_class)),
+ (TYPE_CODE (t) == TYPE_CODE_STRUCT
+ || TYPE_CODE (t) == TYPE_CODE_UNION))))
+ {
+ /* We found a valid token */
+ *token = (char *) xmalloc (prefix_len + 1);
+ memcpy (*token, prefix, prefix_len);
+ (*token)[prefix_len] = '\000';
+ break;
+ }
+
+ /* No variable or class/namespace found, no more tokens */
if (done)
- return (struct symbol *) NULL;
+ return (struct symbol *) NULL;
}
/* Out of loop, so we must have found a valid token */
if (argptr)
*argptr = done ? p : end;
- return sym_var ? sym_var : sym_class; /* found */
+ return sym_var ? sym_var : sym_class; /* found */
}
char *
find_template_name_end (p)
- char * p;
+ char *p;
{
int depth = 1;
int just_seen_right = 0;
int just_seen_colon = 0;
int just_seen_space = 0;
-
+
if (!p || (*p != '<'))
return 0;
while (*++p)
{
switch (*p)
- {
- case '\'': case '\"':
- case '{': case '}':
- /* In future, may want to allow these?? */
- return 0;
- case '<':
- depth++; /* start nested template */
- if (just_seen_colon || just_seen_right || just_seen_space)
- return 0; /* but not after : or :: or > or space */
- break;
- case '>':
- if (just_seen_colon || just_seen_right)
- return 0; /* end a (nested?) template */
- just_seen_right = 1; /* but not after : or :: */
- if (--depth == 0) /* also disallow >>, insist on > > */
- return ++p; /* if outermost ended, return */
- break;
- case ':':
- if (just_seen_space || (just_seen_colon > 1))
- return 0; /* nested class spec coming up */
- just_seen_colon++; /* we allow :: but not :::: */
- break;
- case ' ':
- break;
- default:
- if (!((*p >= 'a' && *p <= 'z') || /* allow token chars */
- (*p >= 'A' && *p <= 'Z') ||
- (*p >= '0' && *p <= '9') ||
- (*p == '_') || (*p == ',') || /* commas for template args */
- (*p == '&') || (*p == '*') || /* pointer and ref types */
- (*p == '(') || (*p == ')') || /* function types */
- (*p == '[') || (*p == ']') )) /* array types */
- return 0;
- }
+ {
+ case '\'':
+ case '\"':
+ case '{':
+ case '}':
+ /* In future, may want to allow these?? */
+ return 0;
+ case '<':
+ depth++; /* start nested template */
+ if (just_seen_colon || just_seen_right || just_seen_space)
+ return 0; /* but not after : or :: or > or space */
+ break;
+ case '>':
+ if (just_seen_colon || just_seen_right)
+ return 0; /* end a (nested?) template */
+ just_seen_right = 1; /* but not after : or :: */
+ if (--depth == 0) /* also disallow >>, insist on > > */
+ return ++p; /* if outermost ended, return */
+ break;
+ case ':':
+ if (just_seen_space || (just_seen_colon > 1))
+ return 0; /* nested class spec coming up */
+ just_seen_colon++; /* we allow :: but not :::: */
+ break;
+ case ' ':
+ break;
+ default:
+ if (!((*p >= 'a' && *p <= 'z') || /* allow token chars */
+ (*p >= 'A' && *p <= 'Z') ||
+ (*p >= '0' && *p <= '9') ||
+ (*p == '_') || (*p == ',') || /* commas for template args */
+ (*p == '&') || (*p == '*') || /* pointer and ref types */
+ (*p == '(') || (*p == ')') || /* function types */
+ (*p == '[') || (*p == ']'))) /* array types */
+ return 0;
+ }
if (*p != ' ')
- just_seen_space = 0;
+ just_seen_space = 0;
if (*p != ':')
- just_seen_colon = 0;
+ just_seen_colon = 0;
if (*p != '>')
- just_seen_right = 0;
+ just_seen_right = 0;
}
return 0;
}
+\f
-\f
/* Return a null-terminated temporary copy of the name
of a string token. */
register struct expression *expr;
{
register int len =
- sizeof (struct expression) + EXP_ELEM_TO_BYTES (expr->nelts);
+ sizeof (struct expression) + EXP_ELEM_TO_BYTES (expr->nelts);
register struct expression *temp;
register int inpos = expr->nelts, outpos = 0;
break;
case OP_COMPLEX:
- oplen = 1;
+ oplen = 1;
args = 2;
- break;
+ break;
case OP_FUNCALL:
case OP_F77_UNDETERMINED_ARGLIST:
oplen = 3;
break;
- case BINOP_VAL:
- case UNOP_CAST:
- case UNOP_MEMVAL:
+ case BINOP_VAL:
+ case UNOP_CAST:
+ case UNOP_MEMVAL:
oplen = 3;
args = 1;
break;
break;
/* Modula-2 */
- case MULTI_SUBSCRIPT:
+ case MULTI_SUBSCRIPT:
oplen = 3;
- args = 1 + longest_to_int (expr->elts[endpos- 2].longconst);
+ args = 1 + longest_to_int (expr->elts[endpos - 2].longconst);
break;
case BINOP_ASSIGN_MODIFY:
break;
case OP_COMPLEX:
- oplen = 1;
- args = 2;
- break;
+ oplen = 1;
+ args = 2;
+ break;
case OP_FUNCALL:
case OP_F77_UNDETERMINED_ARGLIST:
case UNOP_ODD:
case UNOP_ORD:
case UNOP_TRUNC:
- oplen=1;
- args=1;
+ oplen = 1;
+ args = 1;
break;
case STRUCTOP_STRUCT:
break;
/* Modula-2 */
- case MULTI_SUBSCRIPT:
+ case MULTI_SUBSCRIPT:
oplen = 3;
args = 1 + longest_to_int (inexpr->elts[inend - 2].longconst);
break;
/* Stuff for maintaining a stack of types. Currently just used by C, but
probably useful for any language which declares its types "backwards". */
-void
+void
push_type (tp)
enum type_pieces tp;
{
type_stack[type_stack_depth++].int_val = n;
}
-enum type_pieces
+enum type_pieces
pop_type ()
{
if (type_stack_depth)
create_array_type ((struct type *) NULL,
follow_type, range_type);
if (array_size < 0)
- TYPE_ARRAY_UPPER_BOUND_TYPE(follow_type)
+ TYPE_ARRAY_UPPER_BOUND_TYPE (follow_type)
= BOUND_CANNOT_BE_DETERMINED;
break;
case tp_function:
register_gdbarch_swap (NULL, 0, build_parse);
add_show_from_set (
- add_set_cmd ("expressiondebug", class_maintenance, var_zinteger,
- (char *)&expressiondebug,
- "Set expression debugging.\n\
+ add_set_cmd ("expressiondebug", class_maintenance, var_zinteger,
+ (char *) &expressiondebug,
+ "Set expression debugging.\n\
When non-zero, the internal representation of expressions will be printed.",
- &setlist),
- &showlist);
+ &setlist),
+ &showlist);
}
projects / thirdparty / binutils-gdb.git / blobdiff