comment about the test

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5181

diff --git a/memcheck/tests/stack_changes.c b/memcheck/tests/stack_changes.c
index 2bba5888fa373e387d9bff49e55ad67f913f568f..7694b461e337c9da0f5bd6f9110c48752d509dc1 100644 (file)
--- a/memcheck/tests/stack_changes.c
+++ b/memcheck/tests/stack_changes.c
@@ -7,6 +7,9 @@
 
 #define STACK_SIZE 4096
 
+// This test is checking the libc context calls (setcontext, etc.) and
+// checks that Valgrind notices their stack changes properly.
+
 struct ucontext ctx1, ctx2, oldc;
 int count;