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-rw-r--r--gdb/c-exp.y10
1 files changed, 6 insertions, 4 deletions
diff --git a/gdb/c-exp.y b/gdb/c-exp.y
index 283b737..bdcd51f 100644
--- a/gdb/c-exp.y
+++ b/gdb/c-exp.y
@@ -2806,7 +2806,7 @@ static int popping;
/* Temporary storage for c_lex; this holds symbol names as they are
built up. */
-static struct obstack name_obstack;
+auto_obstack name_obstack;
/* Classify a NAME token. The contents of the token are in `yylval'.
Updates yylval and returns the new token type. BLOCK is the block
@@ -3067,7 +3067,7 @@ yylex (void)
current = *VEC_index (token_and_value, token_fifo, next_to_examine);
++next_to_examine;
- obstack_free (&name_obstack, obstack_base (&name_obstack));
+ name_obstack.clear ();
checkpoint = 0;
if (current.token == FILENAME)
search_block = current.value.bval;
@@ -3169,6 +3169,9 @@ c_parse (struct parser_state *par_state)
gdb_assert (par_state != NULL);
pstate = par_state;
+ /* Note that parsing (within yyparse) freely installs cleanups
+ assuming they'll be run here (below). */
+
back_to = make_cleanup (free_current_contents, &expression_macro_scope);
make_cleanup_clear_parser_state (&pstate);
@@ -3197,8 +3200,7 @@ c_parse (struct parser_state *par_state)
VEC_free (token_and_value, token_fifo);
popping = 0;
- obstack_init (&name_obstack);
- make_cleanup_obstack_free (&name_obstack);
+ name_obstack.clear ();
result = yyparse ();
do_cleanups (back_to);