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Date: Thu, 6 Jun 2024 17:36:30 -0700 From: allison.henderson@...cle.com To: netdev@...r.kernel.org Subject: [RFC net-next 2/3] net: rds: add option for GCOV profiling From: Vegard Nossum <vegard.nossum@...cle.com> This commit basically implements what ftrace does with CONFIG_GCOV_PROFILE_FTRACE for RDS. We need this in order to better be able to understand what code paths our unit tests are hitting (or not hitting). Signed-off-by: Vegard Nossum <vegard.nossum@...cle.com> Reviewed-by: Allison Henderson <allison.henderson@...cle.com> Reviewed-by: Chuck Lever <chuck.lever@...cle.com> Signed-off-by: Allison Henderson <allison.henderson@...cle.com> --- net/rds/Kconfig | 9 +++++++++ net/rds/Makefile | 5 +++++ 2 files changed, 14 insertions(+) diff --git a/net/rds/Kconfig b/net/rds/Kconfig index 75cd696963b2..f007730aa2bb 100644 --- a/net/rds/Kconfig +++ b/net/rds/Kconfig @@ -26,3 +26,12 @@ config RDS_DEBUG bool "RDS debugging messages" depends on RDS default n + +config GCOV_PROFILE_RDS + bool "Enable GCOV profiling on RDS" + depends on GCOV_KERNEL + help + Enable GCOV profiling on RDS for checking which functions/lines + are executed. + + If unsure, say N. diff --git a/net/rds/Makefile b/net/rds/Makefile index 8fdc118e2927..3af1ca1d965c 100644 --- a/net/rds/Makefile +++ b/net/rds/Makefile @@ -15,3 +15,8 @@ rds_tcp-y := tcp.o tcp_connect.o tcp_listen.o tcp_recv.o \ tcp_send.o tcp_stats.o ccflags-$(CONFIG_RDS_DEBUG) := -DRDS_DEBUG + +# for GCOV coverage profiling +ifdef CONFIG_GCOV_PROFILE_RDS +GCOV_PROFILE := y +endif -- 2.25.1
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