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| author | Jens Axboe <axboe@kernel.dk> | 2024-08-30 10:52:02 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-08-30 10:52:02 -0600 |
| commit | 1802656ef8906cc949f58b64cb6d8d400326e163 (patch) | |
| tree | 3224f34b16f7ef9a34507daa8d62adc122e1a4d9 | |
| parent | ae98dbf43d755b4e111fcd086e53939bef3e9a1a (diff) | |
io_uring: add GCOV_PROFILE_URING Kconfig option
If GCOV is enabled and this option is set, it enables code coverage
profiling of the io_uring subsystem. Only use this for test purposes,
as it will impact the runtime performance.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | init/Kconfig | 13 | ||||
| -rw-r--r-- | io_uring/Makefile | 4 |
2 files changed, 17 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index 5783a0b87517..3b6ca7cce03b 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1687,6 +1687,19 @@ config IO_URING applications to submit and complete IO through submission and completion rings that are shared between the kernel and application. +config GCOV_PROFILE_URING + bool "Enable GCOV profiling on the io_uring subsystem" + depends on GCOV_KERNEL + help + Enable GCOV profiling on the io_uring subsystem, to facilitate + code coverage testing. + + If unsure, say N. + + Note that this will have a negative impact on the performance of + the io_uring subsystem, hence this should only be enabled for + specific test purposes. + config ADVISE_SYSCALLS bool "Enable madvise/fadvise syscalls" if EXPERT default y diff --git a/io_uring/Makefile b/io_uring/Makefile index 61923e11c767..53167bef37d7 100644 --- a/io_uring/Makefile +++ b/io_uring/Makefile @@ -2,6 +2,10 @@ # # Makefile for io_uring +ifdef CONFIG_GCOV_PROFILE_URING +GCOV_PROFILE := y +endif + obj-$(CONFIG_IO_URING) += io_uring.o opdef.o kbuf.o rsrc.o notif.o \ tctx.o filetable.o rw.o net.o poll.o \ eventfd.o uring_cmd.o openclose.o \ |