Hi, Willy, Hi Thomas Based on Thomas' suggestion, V2 comes here with relative path support for O= option, v1 is [1]. // subdir $ pwd /labs/linux-lab/src/linux-stable/tools/testing/selftests/nolibc $ mkdir -p out $ make run-user O=out -C /labs/linux-lab/src/linux-stable/tools/testing/selftests/nolibc/ -j4 | grep status Makefile:122: srctree=/labs/linux-lab/src/linux-stable Makefile:123: objtree: out Makefile:124: COMMAND_O: O=/labs/linux-lab/src/linux-stable/tools/testing/selftests/nolibc/out Makefile:125: OUTPUT=/labs/linux-lab/src/linux-stable/tools/testing/selftests/nolibc/out/ 166 test(s): 158 passed, 8 skipped, 0 failed => status: warning // topdir $ pwd /labs/linux-lab/src/linux-stable $ mkdir -p out $ make run-user O=out -C /labs/linux-lab/src/linux-stable/tools/testing/selftests/nolibc/ -j4 | grep status Makefile:122: srctree=/labs/linux-lab/src/linux-stable Makefile:123: objtree: out Makefile:124: COMMAND_O: O=/labs/linux-lab/src/linux-stable/out Makefile:125: OUTPUT=/labs/linux-lab/src/linux-stable/out/ 166 test(s): 158 passed, 8 skipped, 0 failed => status: warning // outside $ pwd /labs/linux-lab/build $ mkdir -p out $ make run-user O=out -C /labs/linux-lab/src/linux-stable/tools/testing/selftests/nolibc/ -j4 | grep status Makefile:122: srctree=/labs/linux-lab/src/linux-stable Makefile:123: objtree: out Makefile:124: COMMAND_O: O=/labs/linux-lab/build/out Makefile:125: OUTPUT=/labs/linux-lab/build/out/ 166 test(s): 158 passed, 8 skipped, 0 failed => status: warning Changes from v1 --> v2: * selftests/nolibc: allow report with existing test log tools/nolibc: stackprotector.h: make __stack_chk_init static Add Reviewed-by line from Thomas * selftests/nolibc: fix up O= option support Now with relative path support with the help of $(COMMAND_O). Suggested by Thomas. Thanks! Zhangjin --- [1]: https://lore.kernel.org/lkml/cover.1691073180.git.falcon@xxxxxxxxxxx/ Zhangjin Wu (3): selftests/nolibc: allow report with existing test log tools/nolibc: stackprotector.h: make __stack_chk_init static selftests/nolibc: fix up O= option support tools/include/nolibc/crt.h | 2 +- tools/include/nolibc/stackprotector.h | 5 ++--- tools/testing/selftests/nolibc/Makefile | 19 +++++++++++++------ 3 files changed, 16 insertions(+), 10 deletions(-) -- 2.25.1