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2015-03-19selftests: Set CC using CROSS_COMPILE once in lib.mkMichael Ellerman1-2/+0
This avoids repeating the logic in every Makefile. We mimic the top-level Makefile and use $(CROSS_COMPILE)gcc. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-13selftests: Introduce minimal shared logic for running testsMichael Ellerman1-2/+3
This adds a Make include file which most selftests can then include to get the run_tests logic. On its own this has the advantage of some reduction in repetition, and also means the pass/fail message is defined in fewer places. However the key advantage is it will allow us to implement install very simply in a subsequent patch. The default implementation just executes each program in $(TEST_PROGS). We use a variable to hold the default implementation of $(RUN_TESTS) because that gives us a clean way to override it if necessary, ie. using override. The mount, memory-hotplug and mqueue tests use that to provide a different implementation. Tests are not run via /bin/bash, so if they are scripts they must be executable, we add a+x to several. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2014-12-03selftest: size: Add size test for Linux kernelTim Bird3-0/+113
This test shows the amount of memory used by the system. Note that this is dependent on the user-space that is loaded when this program runs. Optimally, this program would be run as the init program itself. The program is optimized for size itself, to avoid conflating its own execution with that of the system software. The code is compiled statically, with no stdlibs. On my x86_64 system, this results in a statically linked binary of less than 5K. Signed-off-by: Tim Bird <tim.bird@sonymobile.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>