From 95408ad8e24c4364086f185285039e89927dad6c Mon Sep 17 00:00:00 2001 From: Anton Johansson Date: Thu, 23 May 2024 14:59:00 +0200 Subject: [PATCH] target/hexagon: idef-parser fix leak of init_list gen_inst_init_args() is called for instructions using a predicate as an rvalue. Upon first call, the list of arguments which might need initialization init_list is freed to indicate that they have been processed. For instructions without an rvalue predicate, gen_inst_init_args() isn't called and init_list will never be freed. Free init_list from free_instruction() if it hasn't already been freed. A comment in free_instruction is also updated. Signed-off-by: Anton Johansson Reviewed-by: Taylor Simpson Reviewed-by: Brian Cain Message-Id: <20240523125901.27797-4-anjo@rev.ng> Signed-off-by: Brian Cain --- target/hexagon/idef-parser/parser-helpers.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/target/hexagon/idef-parser/parser-helpers.c b/target/hexagon/idef-parser/parser-helpers.c index 95f2b43076..c150c308be 100644 --- a/target/hexagon/idef-parser/parser-helpers.c +++ b/target/hexagon/idef-parser/parser-helpers.c @@ -2121,9 +2121,16 @@ void free_instruction(Context *c) g_string_free(g_array_index(c->inst.strings, GString*, i), TRUE); } g_array_free(c->inst.strings, TRUE); + /* + * Free list of arguments that might need initialization, if they haven't + * already been freed. + */ + if (c->inst.init_list) { + g_array_free(c->inst.init_list, TRUE); + } /* Free INAME token value */ g_string_free(c->inst.name, TRUE); - /* Free variables and registers */ + /* Free declared TCGv variables */ g_array_free(c->inst.allocated, TRUE); /* Initialize instruction-specific portion of the context */ memset(&(c->inst), 0, sizeof(Inst));