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coreutils has a large number of tests, including some added by the Makefile flags RUN_EXPENSIVE_TESTS and RUN_VERY_EXPENSIVE_TESTS that significantly increase runtime (and that have been disabled). Note that the coreutils ptest directory is given blanket permissions at runtime with chmod -R 777 to ensure that the user created for the tests will be able to run the test scripts and create the necessary files in the process. There is still room to improve the results of this ptest without the aforementioned additions. Of the tests marked SKIP, there are 30 tests that are currently counted as SKIP because they require sudo permissions, and another 21 that require membership in multiple user groups. It is important to know that coreutils has tests for both root and non-root users. Testing showed that 42 tests are skipped when running as root versus 30 when running as a non-root user, so the decision was made to run the suite as the latter. Additionally, gdb, valgrind, and strace could be included in the RDEPENDS list to increase pass rate, but their total contribution is 13 tests, so they were omitted to reduce image size. Finally, note that at least one ptest (misc/head-write-error.sh) is prone to ERROR on builds of core-image-minimal if extra space is not provided with IMAGE_ROOTFS_EXTRA_SPACE. (From OE-Core rev: 9a703f8e05d9e7e609d0e04278be290d4051ec31) Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
QEMU Emulation Targets ====================== To simplify development, the build system supports building images to work with the QEMU emulator in system emulation mode. Several architectures are currently supported in 32 and 64 bit variants: * ARM (qemuarm + qemuarm64) * x86 (qemux86 + qemux86-64) * PowerPC (qemuppc only) * MIPS (qemumips + qemumips64) Use of the QEMU images is covered in the Yocto Project Reference Manual. The appropriate MACHINE variable value corresponding to the target is given in brackets.