Re: [RFC PATCH 2/2] kunit: expose ftrace-based API for stubbing out functions during tests

On Thu, Mar 17, 2022 at 9:13 PM David Gow davidgow@google.com wrote:

+/** KUNIT_STUBBABLE - marks a function as stubbable when stubbing support is

• • enabled.
• • Stubbing uses ftrace internally, so we can only stub out functions when they
• • are not inlined. This macro eavlautes to noinline when stubbing support is

Just noting a couple typos lest they be forgotten: *evaluates

• • enabled to thus make it safe.

<snip>

• • void replacement_func(int n)
    

• • {
    

• •         pr_info("replacement_func() called with %d", n);
    

• •         return 42;
    

• • }
    

• • void example_test(struct kunit *test)
    

• • {
    

• •         kunit_active_ftrace_stub(test, real_func, replacement_func);
    

*activate