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-rw-r--r--gdb/ChangeLog7
-rw-r--r--gdb/remote.c27
2 files changed, 30 insertions, 4 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 8b7f967..1bc88cd 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+2010-05-06 Pedro Alves <pedro@codesourcery.com>
+
+ * remote.c (clear_threads_parsing_context): New.
+ (remote_threads_info): Delete unused null_cleanup. Install a
+ cleanup to clear the threads_parsing_context in case parsing
+ throws.
+
2010-05-05 Michael Snyder <msnyder@vmware.com>
* c-exp.y (parse_string_or_char): Delete unused variable.
diff --git a/gdb/remote.c b/gdb/remote.c
index 3982084..95bbc3f 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -2482,6 +2482,21 @@ const struct gdb_xml_element threads_elements[] = {
{ NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
};
+/* Discard the contents of the constructed thread info context. */
+
+static void
+clear_threads_parsing_context (void *p)
+{
+ struct threads_parsing_context *context = p;
+ int i;
+ struct thread_item *item;
+
+ for (i = 0; VEC_iterate (thread_item_t, context->items, i, item); ++i)
+ xfree (item->extra);
+
+ VEC_free (thread_item_t, context->items);
+}
+
#endif
/*
@@ -2512,15 +2527,20 @@ remote_threads_info (struct target_ops *ops)
{
struct gdb_xml_parser *parser;
struct threads_parsing_context context;
- struct cleanup *back_to = make_cleanup (null_cleanup, NULL);
+ struct cleanup *clear_parsing_context;
context.items = 0;
+ /* Note: this parser cleanup is already guarded by BACK_TO
+ above. */
parser = gdb_xml_create_parser_and_cleanup (_("threads"),
threads_elements,
&context);
gdb_xml_use_dtd (parser, "threads.dtd");
+ clear_parsing_context
+ = make_cleanup (clear_threads_parsing_context, &context);
+
if (gdb_xml_parse (parser, xml) == 0)
{
int i;
@@ -2542,13 +2562,12 @@ remote_threads_info (struct target_ops *ops)
info = demand_private_info (item->ptid);
info->core = item->core;
info->extra = item->extra;
- item->extra = 0;
+ item->extra = NULL;
}
- xfree (item->extra);
}
}
- VEC_free (thread_item_t, context.items);
+ do_cleanups (clear_parsing_context);
}
do_cleanups (back_to);