[Buildroot] [git commit] package/linux-tools: add support for pcitest tool

[Thomas Petazzoni]

commit: https://git.buildroot.net/buildroot/commit/?id=63e457639abb29781582320825496fece79a675e
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

Add support for selection and compiling the pcitest tool on buildroot.

This tool is available to be compiled since kernel 4.20.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel at synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
---
 package/linux-tools/Config.in            |  9 +++++++++
 package/linux-tools/linux-tool-pci.mk.in | 27 +++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/package/linux-tools/Config.in b/package/linux-tools/Config.in
index 349dc6bf0d..f4199fd618 100644
--- a/package/linux-tools/Config.in
+++ b/package/linux-tools/Config.in
@@ -34,6 +34,15 @@ config BR2_PACKAGE_LINUX_TOOLS_IIO
 
 	  These tools are available only from kernel version 4.7.
 
+config BR2_PACKAGE_LINUX_TOOLS_PCI
+	bool "pci"
+	select BR2_PACKAGE_LINUX_TOOLS
+	help
+	  pcitest is a tool for testing capabilities related to a
+	  PCI Endpoint (only works with specific Endpoints).
+
+	  These tools are available only from kernel version 4.20.
+
 config BR2_PACKAGE_LINUX_TOOLS_PERF
 	bool "perf"
 	select BR2_PACKAGE_LINUX_TOOLS
diff --git a/package/linux-tools/linux-tool-pci.mk.in b/package/linux-tools/linux-tool-pci.mk.in
new file mode 100644
index 0000000000..4ef0368a32
--- /dev/null
+++ b/package/linux-tools/linux-tool-pci.mk.in
@@ -0,0 +1,27 @@
+################################################################################
+#
+# pci
+#
+################################################################################
+
+LINUX_TOOLS += pci
+
+PCI_MAKE_OPTS = $(LINUX_MAKE_FLAGS)
+
+define PCI_BUILD_CMDS
+	$(Q)if ! grep install $(LINUX_DIR)/tools/pci/Makefile >/dev/null 2>&1 ; then \
+		echo "Your kernel version is too old and does not have install section in the pci tools." ; \
+		echo "At least kernel 4.20 must be used." ; \
+		exit 1 ; \
+	fi
+
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(LINUX_DIR)/tools/pci \
+		$(PCI_MAKE_OPTS)
+endef
+
+define PCI_INSTALL_TARGET_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(LINUX_DIR)/tools/pci \
+		$(PCI_MAKE_OPTS) \
+		DESTDIR=$(TARGET_DIR) \
+		install
+endef