Add recipe for rtc-testbench v5.4, a real-time and non-real-time traffic validation tool for converged TSN networks from Linutronix. It validates real-time performance and robustness of hardware, drivers, and the Linux network stack on TSN-enabled Ethernet networks using AF_PACKET or AF_XDP with eBPF, supporting protocols like PROFINET and OPC UA PubSub.
rtc-testbench depends on libxdp provided by xdp-tools. Depends-on: xdp-tools: upgrade 1.2.10 -> 1.6.3 Signed-off-by: Rajkumar Patel <[email protected]> --- ...ake-BPF-clang-and-include-paths-conf.patch | 54 +++++++++++++++++++ .../rtc-testbench/rtc-testbench_5.4.bb | 40 ++++++++++++++ 2 files changed, 94 insertions(+) create mode 100644 meta-oe/recipes-test/rtc-testbench/files/0001-CMakeLists.txt-make-BPF-clang-and-include-paths-conf.patch create mode 100644 meta-oe/recipes-test/rtc-testbench/rtc-testbench_5.4.bb diff --git a/meta-oe/recipes-test/rtc-testbench/files/0001-CMakeLists.txt-make-BPF-clang-and-include-paths-conf.patch b/meta-oe/recipes-test/rtc-testbench/files/0001-CMakeLists.txt-make-BPF-clang-and-include-paths-conf.patch new file mode 100644 index 0000000000..da1ea3bb33 --- /dev/null +++ b/meta-oe/recipes-test/rtc-testbench/files/0001-CMakeLists.txt-make-BPF-clang-and-include-paths-conf.patch @@ -0,0 +1,54 @@ +From 53c57b337a51a47b0edca64d88ef9aaacce90044 Mon Sep 17 00:00:00 2001 +From: Rajkumar Patel <[email protected]> +Date: Wed, 10 Jun 2026 11:39:40 +0530 +Subject: [PATCH] CMakeLists.txt: make BPF clang and include paths configurable + for cross-builds + +The upstream CMakeLists.txt hardcodes the clang binary name and +derives the BPF include path from CMAKE_C_LIBRARY_ARCHITECTURE, +which is empty in a cross-compilation environment. This causes +the BPF kernel programs to be compiled with the host clang and +-I /usr/include/ (the build host include path), which fails with: + + fatal error: 'asm/types.h' file not found + +Fix by converting the hardcoded values to CMake CACHE variables +so they can be overridden from the recipe via -DCLANG=, +-DBPF_INCLUDE_DIRS=, and -DBPF_EXTRA_FLAGS=. + +Upstream-Status: Inappropriate [OE cross-compilation specific] + +Signed-off-by: Rajkumar Patel <[email protected]> +--- + CMakeLists.txt | 12 +++++++++--- + 1 file changed, 9 insertions(+), 3 deletions(-) + +diff --git a/CMakeLists.txt b/CMakeLists.txt +index f782304..7f284f9 100644 +--- a/CMakeLists.txt ++++ b/CMakeLists.txt +@@ -174,15 +174,21 @@ include_directories("${PROJECT_BINARY_DIR}") + # + # Add code for compiling XDP eBPF programes. + # +-set(ASM_INCLUDE "/usr/include/${CMAKE_C_LIBRARY_ARCHITECTURE}") ++set(CLANG "clang" CACHE STRING "Clang binary used for BPF compilation") ++set(BPF_INCLUDE_DIRS "" CACHE STRING "Sysroot include path for BPF compilation") ++set(BPF_EXTRA_FLAGS "" CACHE STRING "Extra flags for BPF clang compilation (space-separated)") ++ ++separate_arguments(BPF_EXTRA_FLAGS_LIST UNIX_COMMAND "${BPF_EXTRA_FLAGS}") ++ + set(CLANG_FLAGS -Wall -O2 -fno-stack-protector +- -I ${ASM_INCLUDE} ++ ${BPF_EXTRA_FLAGS_LIST} ++ -I ${BPF_INCLUDE_DIRS} + -I ${PROJECT_BINARY_DIR} # required for app_config.h + ) + + function(add_xdp_prog name) + add_custom_target(${name} ALL +- COMMAND clang ${CLANG_FLAGS} -target bpf -c -g -o ${CMAKE_BINARY_DIR}/${name}.o ${name}.c ++ COMMAND ${CLANG} ${CLANG_FLAGS} -target bpf -c -g -o ${CMAKE_BINARY_DIR}/${name}.o ${name}.c + DEPENDS reference + WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/src + SOURCES src/${name}.c diff --git a/meta-oe/recipes-test/rtc-testbench/rtc-testbench_5.4.bb b/meta-oe/recipes-test/rtc-testbench/rtc-testbench_5.4.bb new file mode 100644 index 0000000000..81a4d9d01b --- /dev/null +++ b/meta-oe/recipes-test/rtc-testbench/rtc-testbench_5.4.bb @@ -0,0 +1,40 @@ +SUMMARY = "Real-time and non-real-time traffic validation tool for converged TSN networks" + +DESCRIPTION = "The Linux RealTime Communication Testbench validates real-time \ +performance and robustness of hardware, drivers, and the Linux network stack on \ +TSN-enabled Ethernet networks. It generates and mirrors cyclic traffic using \ +AF_PACKET or AF_XDP with eBPF, supporting protocols like PROFINET and OPC UA PubSub." + +HOMEPAGE = "https://github.com/Linutronix/RTC-Testbench"; +LICENSE = "BSD-2-Clause & (GPL-2.0-only | BSD-2-Clause)" +LIC_FILES_CHKSUM = " \ + file://LICENSE;md5=f39e57686080f8752e19c4cd3e04e351 \ + file://LICENSES/BSD-2-Clause.txt;md5=9e16594a228301089d759b4f178db91f \ + file://LICENSES/GPL-2.0-only.txt;md5=3d26203303a722dedc6bf909d95ba815 \ +" +SRC_URI = " \ + git://github.com/Linutronix/RTC-Testbench.git;tag=v${PV};nobranch=1;protocol=https \ + file://0001-CMakeLists.txt-make-BPF-clang-and-include-paths-conf.patch \ +" +SRCREV = "bf016fdf422094f1ef65c0d88f148f46663ebbd8" + +DEPENDS += " \ + libyaml \ + libbpf \ + xdp-tools \ + openssl \ + clang-native \ +" + +inherit cmake pkgconfig + +EXTRA_OECMAKE += " \ + -DRX_TIMESTAMP=ON \ + -DTX_TIMESTAMP=ON \ + -DCLANG=${STAGING_BINDIR_NATIVE}/clang \ + -DBPF_INCLUDE_DIRS=${STAGING_INCDIR} \ + -DBPF_EXTRA_FLAGS='-D__${TARGET_ARCH}__ -ffile-prefix-map=${S}=${TARGET_DBGSRC_DIR} -ffile-prefix-map=${STAGING_DIR_HOST}=' \ +" + +# Require bash since installed scripts use /bin/bash shebang +RDEPENDS:${PN} += "bash"
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