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-rw-r--r--gdb/c-exp.y18
1 files changed, 7 insertions, 11 deletions
diff --git a/gdb/c-exp.y b/gdb/c-exp.y
index 61fa2fe..7fc23c4 100644
--- a/gdb/c-exp.y
+++ b/gdb/c-exp.y
@@ -2551,17 +2551,13 @@ static const struct token ident_tokens[] =
static void
-scan_macro_expansion (char *expansion)
+scan_macro_expansion (const char *expansion)
{
- const char *copy;
-
/* We'd better not be trying to push the stack twice. */
gdb_assert (! cpstate->macro_original_text);
- /* Copy to the obstack, and then free the intermediate
- expansion. */
- copy = obstack_strdup (&cpstate->expansion_obstack, expansion);
- xfree (expansion);
+ /* Copy to the obstack. */
+ const char *copy = obstack_strdup (&cpstate->expansion_obstack, expansion);
/* Save the old lexptr value, so we can return to it when we're done
parsing the expanded text. */
@@ -2631,11 +2627,11 @@ lex_one_token (struct parser_state *par_state, bool *is_quoted_name)
/* Check if this is a macro invocation that we need to expand. */
if (! scanning_macro_expansion ())
{
- char *expanded = macro_expand_next (&pstate->lexptr,
- *expression_macro_scope);
+ gdb::unique_xmalloc_ptr<char> expanded
+ = macro_expand_next (&pstate->lexptr, *expression_macro_scope);
- if (expanded)
- scan_macro_expansion (expanded);
+ if (expanded != nullptr)
+ scan_macro_expansion (expanded.get ());
}
pstate->prev_lexptr = pstate->lexptr;