CC can have multiple sub-strings like "ccache gcc". Build system of sgx selftest is unable to support this use case and test_sgx isn't built. Then rsync gives an erorr:
rsync: [sender] link_stat "//linux/build/kselftest/sgx/test_sgx" failed: No such file or directory (2) rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1333) [sender=3.2.3]
This can be fixed if CC is considered to have one string while passing to check_cc.sh script and inside this script, CC is expanded before execution.
Following build tests have been performed to confirm that these patches don't break anything else. The verification has also been done through KernelCI scripts locally as KernelCI has caught this bug: 1) cd tools/testing/selftests && make 2) make -C tools/testing/selftests 3) make -C tools/testing/selftests O=build 4) make -C tools/testing/selftests O=build CC="ccache gcc" 5) ./kci_build make_kselftest
Muhammad Usama Anjum (2): selftests: x86: add validity check and allow field splitting selftests: sgx: Treat CC as one argument
tools/testing/selftests/sgx/Makefile | 2 +- tools/testing/selftests/x86/check_cc.sh | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)