From f72c8918416f67aad907752f1892c19eda12eecb Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Wed, 1 Mar 2023 10:49:38 +0100 Subject: [PATCH] ubsan: Add another testcase for [0] array in the middle of struct [PR108894] I think it is useful to cover also this, rather than just arrays at the flexible array member positions. 2023-03-01 Jakub Jelinek PR sanitizer/108894 * c-c++-common/ubsan/bounds-16.c: New test. --- gcc/testsuite/c-c++-common/ubsan/bounds-16.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 gcc/testsuite/c-c++-common/ubsan/bounds-16.c diff --git a/gcc/testsuite/c-c++-common/ubsan/bounds-16.c b/gcc/testsuite/c-c++-common/ubsan/bounds-16.c new file mode 100644 index 0000000..0c27ff9 --- /dev/null +++ b/gcc/testsuite/c-c++-common/ubsan/bounds-16.c @@ -0,0 +1,15 @@ +/* PR sanitizer/108894 */ +/* { dg-do run } */ +/* { dg-options "-fsanitize=bounds -fsanitize-recover=bounds" } */ +/* { dg-output "index 1 out of bounds for type 'int \\\[\[*0-9x]*\\\]'\[^\n\r]*(\n|\r\n|\r)" } */ +/* { dg-output "\[^\n\r]*index 0 out of bounds for type 'int \\\[\[*0-9x]*\\\]'" } */ + +struct S { int a; int b[0]; int c; } s; + +int +main () +{ + int *volatile p = &s.b[0]; + p = &s.b[1]; + int volatile q = s.b[0]; +} -- 2.7.4