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2004-01-27 Paul N. Hilfinger <hilfinger@gnat.com>

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* breakpoint.c (breakpoint_re_set_one): Set b->cond, b->val, and
	b->exp to NULL after freeing so that error during re-parsing or
	evaluation of expressions associated with breakpoint don't
	eventually lead to re-freeing of storage.
	Committed by Andrew Cagney.
This commit is contained in:
Andrew Cagney 2004-01-28 01:39:51 +00:00
parent 17707c23a8
commit a355c7de35
2 changed files with 26 additions and 3 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2004-01-27 Paul N. Hilfinger <hilfinger@gnat.com>
* breakpoint.c (breakpoint_re_set_one): Set b->cond, b->val, and
b->exp to NULL after freeing so that error during re-parsing or
evaluation of expressions associated with breakpoint don't
eventually lead to re-freeing of storage.
Committed by Andrew Cagney.
2004-01-27 Andrew Cagney <cagney@redhat.com>
* source.c (ambiguous_line_spec): Delete undefined declaration.

21
gdb/breakpoint.c
View File

@ -6970,12 +6970,22 @@ breakpoint_re_set_one (void *bint)
/* So for now, just use a global context. */
if (b->exp)
xfree (b->exp);
{
xfree (b->exp);
/* Avoid re-freeing b->exp if an error during the call to
parse_expression. */
b->exp = NULL;
}
b->exp = parse_expression (b->exp_string);
b->exp_valid_block = innermost_block;
mark = value_mark ();
if (b->val)
value_free (b->val);
{
value_free (b->val);
/* Avoid re-freeing b->val if an error during the call to
evaluate_expression. */
b->val = NULL;
}
b->val = evaluate_expression (b->exp);
release_value (b->val);
if (VALUE_LAZY (b->val) && breakpoint_enabled (b))
@ -6985,7 +6995,12 @@ breakpoint_re_set_one (void *bint)
{
s = b->cond_string;
if (b->cond)
xfree (b->cond);
{
xfree (b->cond);
/* Avoid re-freeing b->exp if an error during the call
to parse_exp_1. */
b->cond = NULL;
}
b->cond = parse_exp_1 (&s, (struct block *) 0, 0);
}
if (breakpoint_enabled (b))