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Message-ID: <20221121030620.63181-1-hucool.lihua@huawei.com>
Date: Mon, 21 Nov 2022 11:06:20 +0800
From: Li Hua <hucool.lihua@...wei.com>
To: <mhiramat@...nel.org>, <rostedt@...dmis.org>,
<akpm@...ux-foundation.org>
CC: <nathan@...nel.org>, <ananth@...ibm.com>,
<linux-kernel@...r.kernel.org>, <weiyongjun1@...wei.com>,
<yusongping@...wei.com>, <hucool.lihua@...wei.com>
Subject: [PATCH] test_kprobes: Fix implicit declaration error of test_kprobes
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.
Fixes: 1f6d3a8f5e39 ("kprobes: Add a test case for stacktrace from kretprobe handler")
Signed-off-by: Li Hua <hucool.lihua@...wei.com>
---
lib/Kconfig.debug | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index c3c0b077ade3..a1005415f0f4 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -2107,6 +2107,7 @@ config KPROBES_SANITY_TEST
depends on DEBUG_KERNEL
depends on KPROBES
depends on KUNIT
+ select STACKTRACE if ARCH_CORRECT_STACKTRACE_ON_KRETPROBE
default KUNIT_ALL_TESTS
help
This option provides for testing basic kprobes functionality on
--
2.17.1
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