From: Li Hua hucool.lihua@huawei.com
commit 63a4dc0a0bb0e9bfeb2c88ccda81abdde4cdd6b8 upstream.
If KPROBES_SANITY_TEST and ARCH_CORRECT_STACKTRACE_ON_KRETPROBE is enabled, but STACKTRACE is not set. Build failed as below:
lib/test_kprobes.c: In function ‘stacktrace_return_handler’: lib/test_kprobes.c:228:8: error: implicit declaration of function ‘stack_trace_save’; did you mean ‘stacktrace_driver’? [-Werror=implicit-function-declaration] ret = stack_trace_save(stack_buf, STACK_BUF_SIZE, 0); ^~~~~~~~~~~~~~~~ stacktrace_driver cc1: all warnings being treated as errors scripts/Makefile.build:250: recipe for target 'lib/test_kprobes.o' failed make[2]: *** [lib/test_kprobes.o] Error 1
To fix this error, Select STACKTRACE if ARCH_CORRECT_STACKTRACE_ON_KRETPROBE is enabled.
Link: https://lore.kernel.org/all/20221121030620.63181-1-hucool.lihua@huawei.com/
Fixes: 1f6d3a8f5e39 ("kprobes: Add a test case for stacktrace from kretprobe handler") Cc: stable@vger.kernel.org Signed-off-by: Li Hua hucool.lihua@huawei.com Acked-by: Masami Hiramatsu (Google) mhiramat@kernel.org Signed-off-by: Masami Hiramatsu (Google) mhiramat@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- lib/Kconfig.debug | 1 + 1 file changed, 1 insertion(+)
--- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2080,6 +2080,7 @@ config TEST_MIN_HEAP config TEST_SORT tristate "Array-based sort test" if !KUNIT_ALL_TESTS depends on KUNIT + select STACKTRACE if ARCH_CORRECT_STACKTRACE_ON_KRETPROBE default KUNIT_ALL_TESTS help This option enables the self-test function of 'sort()' at boot,