[PATCH 2/2] ntdll/tests: Add tests for UMIP instructions

[Alexandre Julliard]

Brendan Shanks <bshanks at codeweavers.com> writes:

> +static LONG CALLBACK umip_vectored_handler(EXCEPTION_POINTERS *ExceptionInfo)
> +{
> +    PEXCEPTION_RECORD rec = ExceptionInfo->ExceptionRecord;
> +    trace("vectored exception handler %08x addr:%p\n", rec->ExceptionCode, rec->ExceptionAddress);
> +
> +    ok (!(rec->ExceptionCode == EXCEPTION_ACCESS_VIOLATION &&
> +          rec->ExceptionInformation[0] == 0 &&
> +          rec->ExceptionInformation[1] == UINTPTR_MAX),
> +         "vectored_handler caught fault for unemulated UMIP instruction, exiting\n");
> +
> +    ExitProcess(1);
> +
> +    return EXCEPTION_CONTINUE_SEARCH;
> +}
> +#endif      /* __x86_64__ || __i386__ */
> +
> +START_TEST(umip)
> +{
> +    /* Test that sldt, str, sgdt, sidt, and smsw can be executed with
> +     * all possible operand types (registers/memory of different widths).
> +     *
> +     * We mostly cannot test/predict the returned values, but on a UMIP-enabled
> +     * system without emulation the instructions willl trigger a SIGSEGV.
> +     * A non-first-chance vectored exception handler is added to catch the exception,
> +     * fail the test, and exit the process if that happens.
> +     */

This test should go with the others in exception.c, where you can reuse
the infrastructure to handle exceptions etc.

-- 
Alexandre Julliard
julliard at winehq.org