Messages in this thread Patch in this message | | | From | Song Liu <> | Subject | [PATCH] perf/core: allow ftrace for functions in kernel/event/core.c | Date | Wed, 6 Oct 2021 14:07:32 -0700 |
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It is useful to trace functions in kernel/event/core.c. Allow ftrace for them by removing $(CC_FLAGS_FTRACE) from Makefile.
--- We had some discussions about this last year [1]. Seems that enabling ftrace in kernel/events won't really cause fatal recursion in the tests. Shall we give it another try?
[1] https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg2174018.html
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: KP Singh <kpsingh@kernel.org> Signed-off-by: Song Liu <songliubraving@fb.com> --- kernel/events/Makefile | 5 ----- 1 file changed, 5 deletions(-)
diff --git a/kernel/events/Makefile b/kernel/events/Makefile index 3c022e33c1091..8591c180b52b3 100644 --- a/kernel/events/Makefile +++ b/kernel/events/Makefile @@ -1,10 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -ifdef CONFIG_FUNCTION_TRACER -CFLAGS_REMOVE_core.o = $(CC_FLAGS_FTRACE) -endif - obj-y := core.o ring_buffer.o callchain.o obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o obj-$(CONFIG_UPROBES) += uprobes.o - -- 2.30.2
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