[PATCH 1/2] test/xi2: Add a test for XIGrabDevice

Rui Tiago Cação Matos tiagomatos at gmail.com
Mon Apr 15 01:45:26 PDT 2013

On 15 April 2013 02:20, Peter Hutterer <peter.hutterer at who-t.net> wrote:
> On Sat, Apr 13, 2013 at 04:22:53AM +0200, Rui Matos wrote:
>> Currently fails but will get fixed in the next commit.
> did this test really succeed? because it fails here and it looks like it
> cannot actually work.
> protocol-xigrabdevice: protocol-xigrabdevice.c:73: request_XIGrabDevice:
> Assertion `rc == error' failed.
> rc is BadWindow because dixLookupWindow fails. You wrap it in code, but the
> wrap has no effect because both dixLookupWindow and GrabDevice are part of
> libdix.a. so __wrap_dixLookupWindow is never called, we alway get BadWindow
> and the interesting part of the test is never called.

Oh, right, the dtrace shenanigans. It doesn't work because what
actually gets linked in the test (and servers) binaries are these
partially linked objects dix.O and os.O and thus the linker can't do
its wrapping magic.

I worked around that locally by running configure --without-dtrace.
The following patch also makes it work but I guess it's wrong since
I'm not sure what these special dtrace objects are doing:

diff --git a/configure.ac b/configure.ac
index e0750bb..8831f4b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1342,8 +1342,8 @@ AC_DEFINE(XCMISC, 1, [Support XCMisc extension])
 AC_DEFINE(BIGREQS, 1, [Support BigRequests extension])

 if test "x$SPECIAL_DTRACE_OBJECTS" = "xyes" ; then
-  DIX_LIB='$(top_builddir)/dix/dix.O'
-  OS_LIB='$(top_builddir)/os/os.O $(SHA1_LIBS) $(DLOPEN_LIBS)
+  DIX_LIB='$(top_builddir)/dix/libdix.la'
+  OS_LIB='$(top_builddir)/os/libos.la $(top_builddir)/os/dtrace.o


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