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| author | Congyu Liu <liu3101@purdue.edu> | 2022-05-23 06:30:33 +0000 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-05-26 21:13:00 -0400 |
| commit | bb5eb8f3b329789fbf22c85328dcf696a3e97ffb (patch) | |
| tree | da03a637d306c656b3dbc507a8c007ae1c2c5ff9 /kernel/trace/Makefile | |
| parent | 154827f8e53d8c492b3fb0cb757fbcadb5d516b5 (diff) | |
| download | linux-bb5eb8f3b329789fbf22c85328dcf696a3e97ffb.tar.gz linux-bb5eb8f3b329789fbf22c85328dcf696a3e97ffb.tar.bz2 linux-bb5eb8f3b329789fbf22c85328dcf696a3e97ffb.zip | |
tracing: Disable kcov on trace_preemptirq.c
Functions in trace_preemptirq.c could be invoked from early interrupt
code that bypasses kcov trace function's in_task() check. Disable kcov
on this file to reduce random code coverage.
Link: https://lkml.kernel.org/r/20220523063033.1778974-1-liu3101@purdue.edu
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Congyu Liu <liu3101@purdue.edu>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/Makefile')
| -rw-r--r-- | kernel/trace/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile index d77cd8032213..0d261774d6f3 100644 --- a/kernel/trace/Makefile +++ b/kernel/trace/Makefile @@ -31,6 +31,10 @@ ifdef CONFIG_GCOV_PROFILE_FTRACE GCOV_PROFILE := y endif +# Functions in this file could be invoked from early interrupt +# code and produce random code coverage. +KCOV_INSTRUMENT_trace_preemptirq.o := n + CFLAGS_bpf_trace.o := -I$(src) CFLAGS_trace_benchmark.o := -I$(src) |