From: Florian Westphal Date: Thu, 7 May 2026 09:34:15 +0000 (+0200) Subject: netfilter: add option for GCOV profiling X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=403cec8ab6d002ee26b8345cfd83e58ca3b0606d;p=thirdparty%2Flinux.git netfilter: add option for GCOV profiling Similar to a few other subsystems: add a new config toggle to enable netfilter gcov profiling in netfilter, including ebtables, arptables and so on. ipset and ipvs gain their own, dedicated toggles. Acked-by: Julian Anastasov Signed-off-by: Florian Westphal --- diff --git a/net/bridge/Makefile b/net/bridge/Makefile index 24bd1c0a9a5a3..1203dc19e15c9 100644 --- a/net/bridge/Makefile +++ b/net/bridge/Makefile @@ -29,3 +29,9 @@ obj-$(CONFIG_NETFILTER) += netfilter/ bridge-$(CONFIG_BRIDGE_MRP) += br_mrp_switchdev.o br_mrp.o br_mrp_netlink.o bridge-$(CONFIG_BRIDGE_CFM) += br_cfm.o br_cfm_netlink.o + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE_br_nf_core.o := y +GCOV_PROFILE_br_netfilter_hooks.o := y +GCOV_PROFILE_br_netfilter_ipv6.o := y +endif diff --git a/net/bridge/netfilter/Makefile b/net/bridge/netfilter/Makefile index b9a1303da9771..af0c903aa4ace 100644 --- a/net/bridge/netfilter/Makefile +++ b/net/bridge/netfilter/Makefile @@ -38,3 +38,7 @@ obj-$(CONFIG_BRIDGE_EBT_SNAT) += ebt_snat.o # watchers obj-$(CONFIG_BRIDGE_EBT_LOG) += ebt_log.o obj-$(CONFIG_BRIDGE_EBT_NFLOG) += ebt_nflog.o + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE := y +endif diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile index 7964234f0d088..06e21c26b76f2 100644 --- a/net/ipv4/Makefile +++ b/net/ipv4/Makefile @@ -71,3 +71,7 @@ obj-$(CONFIG_TCP_AO) += tcp_ao.o ifeq ($(CONFIG_BPF_JIT),y) obj-$(CONFIG_BPF_SYSCALL) += bpf_tcp_ca.o endif + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE_netfilter.o := y +endif diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile index 85502d4dfbb4d..dbfb1c4739a87 100644 --- a/net/ipv4/netfilter/Makefile +++ b/net/ipv4/netfilter/Makefile @@ -51,3 +51,7 @@ obj-$(CONFIG_IP_NF_ARP_MANGLE) += arpt_mangle.o obj-$(CONFIG_IP_NF_ARPFILTER) += arptable_filter.o obj-$(CONFIG_NF_DUP_IPV4) += nf_dup_ipv4.o + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE := y +endif diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile index 2c9ce2ccbde17..5b0cd64880212 100644 --- a/net/ipv6/Makefile +++ b/net/ipv6/Makefile @@ -54,3 +54,7 @@ obj-$(CONFIG_NET_UDP_TUNNEL) += ip6_udp_tunnel.o obj-y += mcast_snoop.o obj-$(CONFIG_TCP_AO) += tcp_ao.o endif + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE_netfilter.o := y +endif diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile index 66ce6fa5b2f52..72902d8005ad9 100644 --- a/net/ipv6/netfilter/Makefile +++ b/net/ipv6/netfilter/Makefile @@ -43,3 +43,7 @@ obj-$(CONFIG_IP6_NF_MATCH_SRH) += ip6t_srh.o obj-$(CONFIG_IP6_NF_TARGET_NPT) += ip6t_NPT.o obj-$(CONFIG_IP6_NF_TARGET_REJECT) += ip6t_REJECT.o obj-$(CONFIG_IP6_NF_TARGET_SYNPROXY) += ip6t_SYNPROXY.o + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE := y +endif diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index 682c675125fc1..f71ff98eb5d08 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -1648,6 +1648,14 @@ config NETFILTER_XT_MATCH_U32 endif # NETFILTER_XTABLES +config GCOV_PROFILE_NETFILTER + bool "Enable GCOV profiling for netfilter" + depends on GCOV_KERNEL + help + Enable GCOV profiling for netfilter to check which functions/lines + are executed. + + If unsure, say N. endmenu source "net/netfilter/ipset/Kconfig" diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile index 6bfc250e474fe..f0751ca302c6b 100644 --- a/net/netfilter/Makefile +++ b/net/netfilter/Makefile @@ -240,3 +240,7 @@ obj-$(CONFIG_IP_VS) += ipvs/ # lwtunnel obj-$(CONFIG_LWTUNNEL) += nf_hooks_lwtunnel.o + +ifdef CONFIG_GCOV_PROFILE_NETFILTER +GCOV_PROFILE := y +endif diff --git a/net/netfilter/ipset/Kconfig b/net/netfilter/ipset/Kconfig index b1ea054bb82c8..6c4d547581067 100644 --- a/net/netfilter/ipset/Kconfig +++ b/net/netfilter/ipset/Kconfig @@ -175,4 +175,13 @@ config IP_SET_LIST_SET To compile it as a module, choose M here. If unsure, say N. +config GCOV_PROFILE_IPSET + bool "Enable GCOV profiling for ipset" + depends on GCOV_KERNEL + help + Enable GCOV profiling for ipset to check which functions/lines + are executed. + + If unsure, say N. + endif # IP_SET diff --git a/net/netfilter/ipset/Makefile b/net/netfilter/ipset/Makefile index a445a6bf4f111..4f48df5406cd3 100644 --- a/net/netfilter/ipset/Makefile +++ b/net/netfilter/ipset/Makefile @@ -29,3 +29,6 @@ obj-$(CONFIG_IP_SET_HASH_NETPORTNET) += ip_set_hash_netportnet.o # list types obj-$(CONFIG_IP_SET_LIST_SET) += ip_set_list_set.o +ifdef CONFIG_GCOV_PROFILE_IPSET +GCOV_PROFILE := y +endif diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig index c203252e856d8..7724cb44e6dea 100644 --- a/net/netfilter/ipvs/Kconfig +++ b/net/netfilter/ipvs/Kconfig @@ -349,4 +349,13 @@ config IP_VS_PE_SIP help Allow persistence based on the SIP Call-ID +config GCOV_PROFILE_IPVS + bool "Enable GCOV profiling for IPVS" + depends on GCOV_KERNEL + help + Enable GCOV profiling for IPVS to check which functions/lines + are executed. + + If unsure, say N. + endif # IP_VS diff --git a/net/netfilter/ipvs/Makefile b/net/netfilter/ipvs/Makefile index bb5d8125c82ab..8e4cc67ad39d5 100644 --- a/net/netfilter/ipvs/Makefile +++ b/net/netfilter/ipvs/Makefile @@ -43,3 +43,6 @@ obj-$(CONFIG_IP_VS_FTP) += ip_vs_ftp.o # IPVS connection template retrievers obj-$(CONFIG_IP_VS_PE_SIP) += ip_vs_pe_sip.o +ifdef CONFIG_GCOV_PROFILE_IPVS +GCOV_PROFILE := y +endif