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package/lttng-modules: enable CONFIG_FTRACE in kernel configuration

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The build of lttng-modules will fail if the kernel does not have
CONFIG_TRACEPOINTS enabled. However, CONFIG_TRACEPOINTS is a
prompt-less option, and the most generic option that does enable
CONFIG_TRACEPOINTS is CONFIG_FTRACE.

In addition, CONFIG_FTRACE will also enable CONFIG_STACKTRACE, which
is needed on CPU architectures that don't provide the STACKWALK
mechanism in the kernel, as is the case on ARM 32-bit for example.

Therefore, let's enable CONFIG_FTRACE when building lttng-modules.

Cc: Clément Léger <clement.leger@bootlin.com>
Reported-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Thomas Petazzoni
2022-10-12 22:23:16 +02:00
parent cb51a0c913
commit 3d6aa73ada
1 changed files with 1 additions and 0 deletions
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package/lttng-modules/lttng-modules.mk
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@@ -14,6 +14,7 @@ LTTNG_MODULES_MODULE_MAKE_OPTS = CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m
define LTTNG_MODULES_LINUX_CONFIG_FIXUPS define LTTNG_MODULES_LINUX_CONFIG_FIXUPS
$(call KCONFIG_ENABLE_OPT,CONFIG_KPROBES) $(call KCONFIG_ENABLE_OPT,CONFIG_KPROBES)
$(call KCONFIG_ENABLE_OPT,CONFIG_FTRACE)
endef endef
$(eval $(kernel-module)) $(eval $(kernel-module))