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| author | Steven Rostedt <srostedt@redhat.com> | 2009-02-19 04:06:18 +0100 |
|---|---|---|
| committer | Steven Rostedt <srostedt@redhat.com> | 2009-02-19 04:06:18 +0100 |
| commit | 4d7a077c0c7bfdba04cf0aa0b79053cf4ebaacf8 (patch) | |
| tree | 6c5499988ccb21898b22d709f9f66d019e0fe475 | |
| parent | tracing: disable tracing while testing ring buffer (diff) | |
| download | linux-4d7a077c0c7bfdba04cf0aa0b79053cf4ebaacf8.tar.xz linux-4d7a077c0c7bfdba04cf0aa0b79053cf4ebaacf8.zip | |
tracing: have function trace select kallsyms
Impact: fix output of function tracer to be useful
The function tracer is pretty useless if KALLSYMS is not configured.
Unless you are good at reading hex values, the function tracer should
select the KALLSYMS configuration.
Also, the dynamic function tracer will fail its self test if KALLSYMS
is not selected.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
| -rw-r--r-- | kernel/trace/Kconfig | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 58a93fbd68aa..34e707e5ab87 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -52,6 +52,7 @@ config FUNCTION_TRACER depends on HAVE_FUNCTION_TRACER depends on DEBUG_KERNEL select FRAME_POINTER + select KALLSYMS select TRACING select CONTEXT_SWITCH_TRACER help @@ -238,6 +239,7 @@ config STACK_TRACER depends on DEBUG_KERNEL select FUNCTION_TRACER select STACKTRACE + select KALLSYMS help This special tracer records the maximum stack footprint of the kernel and displays it in debugfs/tracing/stack_trace. |