From fb61d96cf20d5bb6db8fd72ef7b528804e9f6be4 Mon Sep 17 00:00:00 2001 From: Martin Liska Date: Wed, 30 Nov 2016 10:26:51 +0100 Subject: Support nested functions (PR sanitizer/78541). PR sanitizer/78541 * gcc.dg/asan/pr78541-2.c: New test. * gcc.dg/asan/pr78541.c: New test. PR sanitizer/78541 * asan.c (asan_expand_mark_ifn): Properly select a VAR_DECL from FRAME.* component reference. From-SVN: r243003 --- gcc/asan.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'gcc/asan.c') diff --git a/gcc/asan.c b/gcc/asan.c index 6e93ea3..cb5d615 100644 --- a/gcc/asan.c +++ b/gcc/asan.c @@ -2713,6 +2713,12 @@ asan_expand_mark_ifn (gimple_stmt_iterator *iter) tree base = gimple_call_arg (g, 1); gcc_checking_assert (TREE_CODE (base) == ADDR_EXPR); tree decl = TREE_OPERAND (base, 0); + + /* For a nested function, we can have: ASAN_MARK (2, &FRAME.2.fp_input, 4) */ + if (TREE_CODE (decl) == COMPONENT_REF + && DECL_NONLOCAL_FRAME (TREE_OPERAND (decl, 0))) + decl = TREE_OPERAND (decl, 0); + gcc_checking_assert (TREE_CODE (decl) == VAR_DECL); if (asan_handled_variables == NULL) asan_handled_variables = new hash_set (16); -- cgit v1.1