export WS_ROOT=$(CURDIR)
export BR=$(WS_ROOT)/build-root
CCACHE_DIR?=$(BR)/.ccache
-SHELL:=/bin/bash
+SHELL:=$(shell which bash)
GDB?=gdb
PLATFORM?=vpp
SAMPLE_PLUGIN?=no
SUDO?=sudo -E
DPDK_CONFIG?=no-pci
+ifeq ($(strip $(SHELL)),)
+$(error "bash not found, VPP requires bash to build")
+endif
+
,:=,
define disable_plugins
$(if $(1), \
$(if $(wildcard startup.vpp),"exec startup.vpp",) \
} \
$(if $(DPDK_CONFIG), "dpdk { $(DPDK_CONFIG) }",) \
+$(if $(EXTRA_VPP_CONFIG), "$(EXTRA_VPP_CONFIG)",) \
$(call disable_plugins,$(DISABLED_PLUGINS)) \
"
OS_VERSION_ID= $(shell grep '^VERSION_ID=' /etc/os-release | cut -f2- -d= | sed -e 's/\"//g')
endif
-ifeq ($(filter ubuntu debian,$(OS_ID)),$(OS_ID))
+ifeq ($(filter ubuntu debian linuxmint,$(OS_ID)),$(OS_ID))
PKG=deb
-else ifeq ($(filter rhel centos fedora opensuse-leap,$(OS_ID)),$(OS_ID))
+else ifeq ($(filter rhel centos fedora opensuse-leap rocky almalinux,$(OS_ID)),$(OS_ID))
PKG=rpm
endif
DEB_DEPENDS = curl build-essential autoconf automake ccache
DEB_DEPENDS += debhelper dkms git libtool libapr1-dev dh-python
DEB_DEPENDS += libconfuse-dev git-review exuberant-ctags cscope pkg-config
-DEB_DEPENDS += lcov chrpath autoconf libnuma-dev
+DEB_DEPENDS += gcovr lcov chrpath autoconf libnuma-dev
DEB_DEPENDS += python3-all python3-setuptools check
DEB_DEPENDS += libffi-dev python3-ply
-DEB_DEPENDS += cmake ninja-build uuid-dev python3-jsonschema python3-yaml
+DEB_DEPENDS += cmake ninja-build python3-jsonschema python3-yaml
DEB_DEPENDS += python3-venv # ensurepip
-DEB_DEPENDS += python3-dev # needed for python3 -m pip install psutil
+DEB_DEPENDS += python3-dev python3-pip
DEB_DEPENDS += libnl-3-dev libnl-route-3-dev libmnl-dev
# DEB_DEPENDS += enchant # for docs
DEB_DEPENDS += python3-virtualenv
DEB_DEPENDS += libssl-dev
-DEB_DEPENDS += libelf-dev # for libbpf (af_xdp)
+DEB_DEPENDS += libelf-dev libpcap-dev # for libxdp (af_xdp)
DEB_DEPENDS += iperf3 # for 'make test TEST=vcl'
+DEB_DEPENDS += nasm
+DEB_DEPENDS += iperf ethtool # for 'make test TEST=vm_vpp_interfaces'
+DEB_DEPENDS += libpcap-dev
+DEB_DEPENDS += tshark
+DEB_DEPENDS += jq # for extracting test summary from .json report (hs-test)
LIBFFI=libffi6 # works on all but 20.04 and debian-testing
-ifeq ($(OS_VERSION_ID),20.04)
+ifeq ($(OS_VERSION_ID),22.04)
+ DEB_DEPENDS += python3-virtualenv
+ DEB_DEPENDS += libssl-dev
+ DEB_DEPENDS += clang clang-format-11
+ LIBFFI=libffi7
+ DEB_DEPENDS += enchant-2 # for docs
+else ifeq ($(OS_VERSION_ID),20.04)
DEB_DEPENDS += python3-virtualenv
DEB_DEPENDS += libssl-dev
- DEB_DEPENDS += libelf-dev # for libbpf (af_xdp)
- # TODO: change CLANG_FORMAT_VER default in extras/scripts/checkstyle.sh
- # when clang-format-10 is removed
- DEB_DEPENDS += clang-11 clang-format-11 clang-format-10
+ DEB_DEPENDS += clang clang-format-11
LIBFFI=libffi7
DEB_DEPENDS += enchant-2 # for docs
else ifeq ($(OS_VERSION_ID),20.10)
- # TODO: change CLANG_FORMAT_VER default in extras/scripts/checkstyle.sh
- # when clang-format-10 is removed
- DEB_DEPENDS += clang-11 clang-format-11 clang-format-10
+ DEB_DEPENDS += clang clang-format-11
LIBFFI=libffi8ubuntu1
else ifeq ($(OS_ID)-$(OS_VERSION_ID),debian-10)
DEB_DEPENDS += virtualenv
else ifeq ($(OS_ID)-$(OS_VERSION_ID),debian-11)
DEB_DEPENDS += virtualenv
- DEB_DEPENDS += clang-11 clang-format-11
+ DEB_DEPENDS += clang clang-format-11
LIBFFI=libffi7
+else ifeq ($(OS_ID)-$(OS_VERSION_ID),debian-12)
+ DEB_DEPENDS += virtualenv
+ DEB_DEPENDS += clang-14 clang-format-14
+ # for extras/scripts/checkstyle.sh
+ export CLANG_FORMAT_VER=14
+ LIBFFI=libffi8
else
- # TODO: change CLANG_FORMAT_VER default in extras/scripts/checkstyle.sh
- # when clang-format-10 is removed
- DEB_DEPENDS += clang-11 clang-format-11 clang-format-10
+ DEB_DEPENDS += clang-11 clang-format-11
LIBFFI=libffi7
DEB_DEPENDS += enchant-2 # for docs
endif
DEB_DEPENDS += $(LIBFFI)
-RPM_DEPENDS = redhat-lsb glibc-static
+RPM_DEPENDS = glibc-static
RPM_DEPENDS += apr-devel
RPM_DEPENDS += numactl-devel
RPM_DEPENDS += check check-devel
RPM_DEPENDS += selinux-policy selinux-policy-devel
RPM_DEPENDS += ninja-build
-RPM_DEPENDS += libuuid-devel
-RPM_DEPENDS += mbedtls-devel
RPM_DEPENDS += ccache
RPM_DEPENDS += xmlto
-RPM_DEPENDS += elfutils-libelf-devel
+RPM_DEPENDS += elfutils-libelf-devel libpcap-devel
RPM_DEPENDS += libnl3-devel libmnl-devel
+RPM_DEPENDS += nasm
ifeq ($(OS_ID),fedora)
RPM_DEPENDS += dnf-utils
RPM_DEPENDS += python3-virtualenv python3-jsonschema
RPM_DEPENDS += cmake
RPM_DEPENDS_GROUPS = 'C Development Tools and Libraries'
+else ifeq ($(OS_ID),rocky)
+ RPM_DEPENDS += yum-utils
+ RPM_DEPENDS += subunit subunit-devel
+ RPM_DEPENDS += openssl-devel
+ RPM_DEPENDS += python3-devel # needed for python3 -m pip install psutil
+ RPM_DEPENDS += python3-ply # for vppapigen
+ RPM_DEPENDS += python3-virtualenv python3-jsonschema
+ RPM_DEPENDS += infiniband-diags llvm clang cmake
+ RPM_DEPENDS_GROUPS = 'Development Tools'
+else ifeq ($(OS_ID),almalinux)
+ RPM_DEPENDS += yum-utils
+ RPM_DEPENDS += subunit subunit-devel
+ RPM_DEPENDS += openssl-devel
+ RPM_DEPENDS += python3-devel # needed for python3 -m pip install psutil
+ RPM_DEPENDS += python3-ply # for vppapigen
+ RPM_DEPENDS += python3-virtualenv python3-jsonschema
+ RPM_DEPENDS += infiniband-diags llvm clang cmake
+ RPM_DEPENDS_GROUPS = 'Development Tools'
else ifeq ($(OS_ID)-$(OS_VERSION_ID),centos-8)
RPM_DEPENDS += yum-utils
RPM_DEPENDS += compat-openssl10 openssl-devel
RPM_DEPENDS += python2-devel python36-devel python3-ply
RPM_DEPENDS += python3-virtualenv python3-jsonschema
RPM_DEPENDS += libarchive cmake
+ RPM_DEPENDS += infiniband-diags libibumad
+ RPM_DEPENDS += libpcap-devel llvm-toolset
RPM_DEPENDS_GROUPS = 'Development Tools'
else
RPM_DEPENDS += yum-utils
RPM_SUSE_BUILDTOOLS_DEPS += clang cmake indent libtool make ninja python3-ply
RPM_SUSE_DEVEL_DEPS = glibc-devel-static libnuma-devel libelf-devel
-RPM_SUSE_DEVEL_DEPS += libopenssl-devel openssl-devel mbedtls-devel libuuid-devel
+RPM_SUSE_DEVEL_DEPS += libopenssl-devel lsb-release
+RPM_SUSE_DEVEL_DEPS += libpcap-devel llvm-devel
+RPM_SUSE_DEVEL_DEPS += curl libstdc++-devel bison gcc-c++ zlib-devel
-RPM_SUSE_PYTHON_DEPS = python-devel python3-devel python-pip python3-pip
-RPM_SUSE_PYTHON_DEPS += python-rpm-macros python3-rpm-macros
+RPM_SUSE_PYTHON_DEPS = python3-devel python3-pip python3-rpm-macros
-RPM_SUSE_PLATFORM_DEPS = distribution-release shadow rpm-build
+RPM_SUSE_PLATFORM_DEPS = shadow rpm-build
ifeq ($(OS_ID),opensuse-leap)
-ifeq ($(OS_VERSION_ID),15.3)
- RPM_SUSE_DEVEL_DEPS += curl libstdc++-devel bison gcc-c++ zlib-devel xmlto
- RPM_SUSE_DEVEL_DEPS += lsb-release
- RPM_SUSE_DEVEL_DEPS += asciidoc git
- RPM_SUSE_PYTHON_DEPS += python3 python2-ply
-endif
-ifeq ($(OS_VERSION_ID),15.0)
- RPM_SUSE_DEVEL_DEPS += gcc git curl
- RPM_SUSE_PYTHON_DEPS += python3-ply python2-virtualenv
-endif
+ RPM_SUSE_DEVEL_DEPS += xmlto openssl-devel asciidoc git nasm
+ RPM_SUSE_PYTHON_DEPS += python3 python3-ply python3-virtualenv
+ RPM_SUSE_PLATFORM_DEPS += distribution-release
endif
RPM_SUSE_DEPENDS += $(RPM_SUSE_BUILDTOOLS_DEPS) $(RPM_SUSE_DEVEL_DEPS) $(RPM_SUSE_PYTHON_DEPS) $(RPM_SUSE_PLATFORM_DEPS)
endif
ifeq ($(findstring y,$(UNATTENDED)),y)
+DEBIAN_FRONTEND=noninteractive
CONFIRM=-y
-FORCE=--force-yes
+FORCE=--allow-downgrades --allow-remove-essential --allow-change-held-packages
endif
TARGETS = vpp
@echo " compdb - (re)generate compile_commands.json"
@echo " checkstyle - check coding style"
@echo " checkstyle-commit - check commit message format"
- @echo " checkstyle-test - check test framework coding style"
- @echo " checkstyle-test-diff - check test framework coding style (only changed files)"
+ @echo " checkstyle-python - check python coding style using 'black' formatter"
@echo " checkstyle-api - check api for incompatible changes"
@echo " fixstyle - fix coding style"
+ @echo " fixstyle-python - fix python coding style using 'black' formatter"
@echo " doxygen - DEPRECATED - use 'make docs'"
@echo " bootstrap-doxygen - DEPRECATED"
@echo " wipe-doxygen - DEPRECATED"
@echo " docs - Build the Sphinx documentation"
@echo " docs-venv - Build the virtual environment for the Sphinx docs"
@echo " docs-clean - Remove the generated files from the Sphinx docs"
+ @echo " docs-rebuild - Rebuild all of the Sphinx documentation"
@echo ""
@echo "Make Arguments:"
@echo " V=[0|1] - set build verbosity level"
$(BR)/.deps.ok:
ifeq ($(findstring y,$(UNATTENDED)),y)
- make install-dep
+ $(MAKE) install-dep
endif
-ifeq ($(filter ubuntu debian,$(OS_ID)),$(OS_ID))
+ifeq ($(filter ubuntu debian linuxmint,$(OS_ID)),$(OS_ID))
@MISSING=$$(apt-get install -y -qq -s $(DEB_DEPENDS) | grep "^Inst ") ; \
if [ -n "$$MISSING" ] ; then \
echo "\nPlease install missing packages: \n$$MISSING\n" ; \
.PHONY: install-dep
install-dep:
-ifeq ($(filter ubuntu debian,$(OS_ID)),$(OS_ID))
+ifeq ($(filter ubuntu debian linuxmint,$(OS_ID)),$(OS_ID))
@sudo -E apt-get update
@sudo -E apt-get $(APT_ARGS) $(CONFIRM) $(FORCE) install $(DEB_DEPENDS)
else ifneq ("$(wildcard /etc/redhat-release)","")
@sudo -E yum-config-manager --enable rhel-server-rhscl-7-rpms
@sudo -E yum groupinstall $(CONFIRM) $(RPM_DEPENDS_GROUPS)
@sudo -E yum install $(CONFIRM) $(RPM_DEPENDS)
- @sudo -E debuginfo-install $(CONFIRM) glibc openssl-libs mbedtls-devel zlib
+ @sudo -E debuginfo-install $(CONFIRM) glibc openssl-libs zlib
+else ifeq ($(OS_ID),rocky)
+ @sudo -E dnf install $(CONFIRM) dnf-plugins-core epel-release
+ @sudo -E dnf config-manager --set-enabled \
+ $(shell dnf repolist all 2>/dev/null|grep -i crb|cut -d' ' -f1|grep -v source)
+ @sudo -E dnf groupinstall $(CONFIRM) $(RPM_DEPENDS_GROUPS)
+ @sudo -E dnf install $(CONFIRM) $(RPM_DEPENDS)
else ifeq ($(OS_ID)-$(OS_VERSION_ID),centos-8)
@sudo -E dnf install $(CONFIRM) dnf-plugins-core epel-release
@sudo -E dnf config-manager --set-enabled \
- $(shell dnf repolist all 2>/dev/null|grep -i powertools|cut -d' ' -f1)
+ $(shell dnf repolist all 2>/dev/null|grep -i powertools|cut -d' ' -f1|grep -v source)
@sudo -E dnf groupinstall $(CONFIRM) $(RPM_DEPENDS_GROUPS)
@sudo -E dnf install --skip-broken $(CONFIRM) $(RPM_DEPENDS)
else ifeq ($(OS_ID),centos)
else ifeq ($(OS_ID),fedora)
@sudo -E dnf groupinstall $(CONFIRM) $(RPM_DEPENDS_GROUPS)
@sudo -E dnf install $(CONFIRM) $(RPM_DEPENDS)
- @sudo -E debuginfo-install $(CONFIRM) glibc openssl-libs mbedtls-devel zlib
+ @sudo -E debuginfo-install $(CONFIRM) glibc openssl-libs zlib
endif
-else ifeq ($(filter opensuse-leap,$(OS_ID)),$(OS_ID))
+else ifeq ($(filter opensuse-leap-15.3 opensuse-leap-15.4 ,$(OS_ID)-$(OS_VERSION_ID)),$(OS_ID)-$(OS_VERSION_ID))
@sudo -E zypper refresh
@sudo -E zypper install -y $(RPM_SUSE_DEPENDS)
else
install-deps: install-dep
define make
- @make -C $(BR) PLATFORM=$(PLATFORM) TAG=$(1) $(2)
+ @$(MAKE) -C $(BR) PLATFORM=$(PLATFORM) TAG=$(1) $(2)
endef
$(BR)/scripts/.version:
export TEST_DIR ?= $(WS_ROOT)/test
define test
- $(if $(filter-out $(2),retest),make -C $(BR) PLATFORM=vpp TAG=$(1) vpp-install,)
+ $(if $(filter-out $(2),retest),$(MAKE) -C $(BR) PLATFORM=vpp TAG=$(1) CC=$(CC) vpp-install,)
$(eval libs:=lib lib64)
- make -C test \
+ $(MAKE) -C test \
VPP_BUILD_DIR=$(BR)/build-$(1)-native/vpp \
VPP_BIN=$(BR)/install-$(1)-native/vpp/bin/vpp \
VPP_INSTALL_PATH=$(BR)/install-$(1)-native/ \
EXTENDED_TESTS=$(EXTENDED_TESTS) \
+ TEST_GCOV=$(TEST_GCOV) \
PYTHON=$(PYTHON) \
OS_ID=$(OS_ID) \
RND_SEED=$(RND_SEED) \
.PHONY: test
test:
+ifeq ($(CC),cc)
+ $(eval CC=clang)
+endif
$(call test,vpp,test)
.PHONY: test-debug
test-debug:
+ifeq ($(CC),cc)
+ $(eval CC=clang)
+endif
$(call test,vpp_debug,test)
-.PHONY: test-gcov
-test-gcov:
+.PHONY: test-cov
+test-cov:
+ $(eval CC=gcc)
+ $(eval TEST_GCOV=1)
+ $(call test,vpp_gcov,cov)
+
+.PHONY: test-cov-build
+test-cov-build:
+ $(eval CC=gcc)
+ $(eval TEST_GCOV=1)
$(call test,vpp_gcov,test)
+.PHONY: test-cov-prep
+test-cov-prep:
+ $(eval CC=gcc)
+ $(call test,vpp_gcov,cov-prep)
+
+.PHONY: test-cov-post
+test-cov-post:
+ $(eval CC=gcc)
+ $(call test,vpp_gcov,cov-post)
+
.PHONY: test-all
test-all:
$(eval EXTENDED_TESTS=1)
$(eval EXTENDED_TESTS=1)
$(call test,vpp_debug,test)
+.PHONY: test-all-cov
+test-all-cov:
+ $(eval CC=gcc)
+ $(eval TEST_GCOV=1)
+ $(eval EXTENDED_TESTS=1)
+ $(call test,vpp_gcov,test)
+
.PHONY: papi-wipe
papi-wipe: test-wipe-papi
$(call banner,"This command is deprecated. Please use 'test-wipe-papi'")
.PHONY: test-wipe-papi
test-wipe-papi:
- @make -C test wipe-papi
+ @$(MAKE) -C test wipe-papi
.PHONY: test-help
test-help:
- @make -C test help
+ @$(MAKE) -C test help
.PHONY: test-wipe
test-wipe:
- @make -C test wipe
+ @$(MAKE) -C test wipe
.PHONY: test-shell
test-shell:
test-shell-debug:
$(call test,vpp_debug,shell)
-.PHONY: test-shell-gcov
-test-shell-gcov:
+.PHONY: test-shell-cov
+test-shell-cov:
+ $(eval CC=gcc)
+ $(eval TEST_GCOV=1)
$(call test,vpp_gcov,shell)
.PHONY: test-dep
@echo "make test-wipe-doc is DEPRECATED"
sleep 300
-.PHONY: test-cov
-test-cov:
- $(eval EXTENDED_TESTS=1)
- $(call test,vpp_gcov,cov)
-
.PHONY: test-wipe-cov
test-wipe-cov:
- @make -C test wipe-cov
+ $(call make,$(PLATFORM)_gcov,$(addsuffix -wipe,$(TARGETS)))
+ @$(MAKE) -C test wipe-cov
.PHONY: test-wipe-all
test-wipe-all:
- @make -C test wipe-all
+ @$(MAKE) -C test wipe-all
+# Note: All python venv consolidated in test/Makefile, test/requirements*.txt
.PHONY: test-checkstyle
test-checkstyle:
- @make -C test checkstyle
+ $(warning test-checkstyle is deprecated. Running checkstyle-python.")
+ @$(MAKE) -C test checkstyle-python-all
+# Note: All python venv consolidated in test/Makefile, test/requirements*.txt
.PHONY: test-checkstyle-diff
test-checkstyle-diff:
- @make -C test checkstyle-diff
+ $(warning test-checkstyle-diff is deprecated. Running checkstyle-python.")
+ @$(MAKE) -C test checkstyle-python-all
.PHONY: test-refresh-deps
test-refresh-deps:
- @make -C test refresh-deps
+ @$(MAKE) -C test refresh-deps
.PHONY: retest
retest:
.PHONY: build-coverity
build-coverity:
$(call make,$(PLATFORM)_coverity,install-packages)
- @make -C build-root PLATFORM=vpp TAG=vpp_coverity libmemif-install
+ @$(MAKE) -C build-root PLATFORM=vpp TAG=vpp_coverity libmemif-install
.PHONY: debug-release
debug-release:
.PHONY: pkg-rpm
pkg-rpm: dist
- make -C extras/rpm
+ $(MAKE) -C extras/rpm
.PHONY: pkg-srpm
pkg-srpm: dist
- make -C extras/rpm srpm
+ $(MAKE) -C extras/rpm srpm
.PHONY: install-ext-deps
install-ext-deps:
- make -C build/external install-$(PKG)
+ $(MAKE) -C build/external install-$(PKG)
.PHONY: install-ext-dep
install-ext-dep: install-ext-deps
.PHONY: go-api-files
go-api-files: json-api-files
- $(WS_ROOT)/src/tools/vppapigen/generate_go.py
+ $(WS_ROOT)/src/tools/vppapigen/generate_go.py $(ARGS)
.PHONY: ctags
ctags: ctags.files
@extras/scripts/check_commit_msg.sh
.PHONY: checkstyle-test
-checkstyle-test: test-checkstyle
+checkstyle-test:
+ $(warning test-checkstyle is deprecated. Running checkstyle-python.")
+ @$(MAKE) -C test checkstyle-python-all
+
+# Note: All python venv consolidated in test/Makefile, test/requirements*.txt
+.PHONY: checkstyle-python
+checkstyle-python:
+ @$(MAKE) -C test checkstyle-python-all
.PHONY: checkstyle-all
-checkstyle-all: checkstyle-commit checkstyle checkstyle-test
+checkstyle-all: checkstyle-commit checkstyle checkstyle-python docs-spell
.PHONY: fixstyle
fixstyle:
@extras/scripts/checkstyle.sh --fix
+# Note: All python venv consolidated in test/Makefile, test/requirements*.txt
+.PHONY: fixstyle-python
+fixstyle-python:
+ @$(MAKE) -C test fixstyle-python-all
+
.PHONY: checkstyle-api
checkstyle-api:
@extras/scripts/crcchecker.py --check-patchset
.PHONY: docs-%
docs-%:
- @make -C $(WS_ROOT)/docs $*
+ @$(MAKE) -C $(WS_ROOT)/docs $*
.PHONY: docs
docs:
- @make -C $(WS_ROOT)/docs docs
+ @$(MAKE) -C $(WS_ROOT)/docs docs
.PHONY: pkg-verify
pkg-verify: install-dep $(BR)/.deps.ok install-ext-deps
- $(call banner,"Building for PLATFORM=vpp using gcc")
- @make -C build-root PLATFORM=vpp TAG=vpp wipe-all install-packages
+ $(call banner,"Building for PLATFORM=vpp")
+ @$(MAKE) -C build-root PLATFORM=vpp TAG=vpp wipe-all install-packages
$(call banner,"Building sample-plugin")
- @make -C build-root PLATFORM=vpp TAG=vpp sample-plugin-install
+ @$(MAKE) -C build-root PLATFORM=vpp TAG=vpp sample-plugin-install
$(call banner,"Building libmemif")
- @make -C build-root PLATFORM=vpp TAG=vpp libmemif-install
+ @$(MAKE) -C build-root PLATFORM=vpp TAG=vpp libmemif-install
$(call banner,"Building $(PKG) packages")
- @make pkg-$(PKG)
+ @$(MAKE) pkg-$(PKG)
-MAKE_VERIFY_GATE_OS ?= ubuntu-20.04
+# Note: 'make verify' target is not used by ci-management scripts
+MAKE_VERIFY_GATE_OS ?= ubuntu-22.04
.PHONY: verify
verify: pkg-verify
ifeq ($(OS_ID)-$(OS_VERSION_ID),$(MAKE_VERIFY_GATE_OS))
$(call banner,"Testing vppapigen")
@src/tools/vppapigen/test_vppapigen.py
$(call banner,"Running tests")
- @make COMPRESS_FAILED_TEST_LOGS=yes RETRIES=3 test
+ @$(MAKE) COMPRESS_FAILED_TEST_LOGS=yes RETRIES=3 test
else
$(call banner,"Skipping tests. Tests under 'make verify' supported on $(MAKE_VERIFY_GATE_OS)")
endif
+
+.PHONY: check-dpdk-mlx
+check-dpdk-mlx:
+ @[ $$($(MAKE) -sC build/external dpdk-show-DPDK_MLX_DEFAULT) = y ]
Code Review / vpp.git / blobdiff