Merge remote-tracking branch 'remotes/stsquad/tags/pull-code-coverage-and-build-tweaks-050718-3' into staging

Code coverage and other build tweaks

  - revert 208ecb3e (and drop filter for mingw, tweak for check-tcg)
  - some travis speed-ups
  - modernise code coverage support
  - docker image cleanups
  - clean-up binfmt_misc docker infrastructure
  - add debian-powerpc-user-cross image for ppc32 build

# gpg: Signature made Thu 05 Jul 2018 17:00:02 BST
# gpg:                using RSA key FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>"
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-code-coverage-and-build-tweaks-050718-3:
  docker: add linux-user powered cross builder for QEMU
  docker: add special rule for deboostrapped images
  docker: add special handling for FROM:debian-%-user targets
  docker: debian-bootstrap.pre allow customising of variant/url
  docker: drop QEMU build-dep from bootstrap
  docker: Do not run tests in 'intermediate' images
  docker: Clean the MXE base image
  docker: ubuntu: Use SDL2
  docker: ubuntu: Update the package list before installing new ones
  linux-user: add gcov support to preexit_cleanup
  linux-user: introduce preexit_cleanup
  build-system: add coverage-report target
  build-system: add clean-coverage target
  travis: add gcovr summary for GCOV build
  docker: add gcovr to travis image
  .gitignore: add .gcov files
  build-system: remove per-test GCOV reporting
  travis: test out-of-tree builds
  travis: do not waste time cloning unused submodules
  Revert "Makefile: Rename TARGET_DIRS to TARGET_LIST"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

9 files changed, 86 insertions, 26 deletions

diff --git a/tests/Makefile.include b/tests/Makefile.include
index 1affc49..a492827 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -874,7 +874,7 @@ endif
 
 # QTest rules
 
-TARGETS=$(patsubst %-softmmu,%, $(filter %-softmmu,$(TARGET_LIST)))
+TARGETS=$(patsubst %-softmmu,%, $(filter %-softmmu,$(TARGET_DIRS)))
 ifeq ($(CONFIG_POSIX),y)
 QTEST_TARGETS = $(TARGETS)
 check-qtest-y=$(foreach TARGET,$(TARGETS), $(check-qtest-$(TARGET)-y))
@@ -897,26 +897,16 @@ GCOV_OPTIONS = -n $(if $(V),-f,)
 
 .PHONY: $(patsubst %, check-qtest-%, $(QTEST_TARGETS))
 $(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: subdir-%-softmmu $(check-qtest-y)
-	$(if $(CONFIG_GCOV),@rm -f *.gcda */*.gcda */*/*.gcda */*/*/*.gcda,)
 	$(call quiet-command,QTEST_QEMU_BINARY=$*-softmmu/qemu-system-$* \
 		QTEST_QEMU_IMG=qemu-img$(EXESUF) \
 		MALLOC_PERTURB_=$${MALLOC_PERTURB_:-$$(( $${RANDOM:-0} % 255 + 1))} \
 		gtester $(GTESTER_OPTIONS) -m=$(SPEED) $(check-qtest-$*-y) $(check-qtest-generic-y),"GTESTER","$@")
-	$(if $(CONFIG_GCOV),@for f in $(gcov-files-$*-y) $(gcov-files-generic-y); do \
-	  echo Gcov report for $$f:;\
-	  $(GCOV) $(GCOV_OPTIONS) $$f -o `dirname $$f`; \
-	done,)
 
 .PHONY: $(patsubst %, check-%, $(check-unit-y) $(check-speed-y))
 $(patsubst %, check-%, $(check-unit-y) $(check-speed-y)): check-%: %
-	$(if $(CONFIG_GCOV),@rm -f *.gcda */*.gcda */*/*.gcda */*/*/*.gcda,)
 	$(call quiet-command, \
 		MALLOC_PERTURB_=$${MALLOC_PERTURB_:-$$(( $${RANDOM:-0} % 255 + 1))} \
 		gtester $(GTESTER_OPTIONS) -m=$(SPEED) $*,"GTESTER","$*")
-	$(if $(CONFIG_GCOV),@for f in $(gcov-files-$(subst tests/,,$*)-y) $(gcov-files-generic-y); do \
-	  echo Gcov report for $$f:;\
-	  $(GCOV) $(GCOV_OPTIONS) $$f -o `dirname $$f`; \
-	done,)
 
 # gtester tests with XML output
 
@@ -938,14 +928,14 @@ check-report.html: check-report.xml
 
 # Per guest TCG tests
 
-LINUX_USER_TARGETS=$(filter %-linux-user,$(TARGET_LIST))
+LINUX_USER_TARGETS=$(filter %-linux-user,$(TARGET_DIRS))
 BUILD_TCG_TARGET_RULES=$(patsubst %,build-tcg-tests-%, $(LINUX_USER_TARGETS))
 CLEAN_TCG_TARGET_RULES=$(patsubst %,clean-tcg-tests-%, $(LINUX_USER_TARGETS))
 RUN_TCG_TARGET_RULES=$(patsubst %,run-tcg-tests-%, $(LINUX_USER_TARGETS))
 
 ifeq ($(HAVE_USER_DOCKER),y)
 # Probe for the Docker Builds needed for each build
-$(foreach PROBE_TARGET,$(TARGET_LIST), 				\
+$(foreach PROBE_TARGET,$(TARGET_DIRS), 				\
 	$(eval -include $(SRC_PATH)/tests/tcg/Makefile.probe) 	\
 	$(if $(DOCKER_PREREQ), 					\
 		$(eval build-tcg-tests-$(PROBE_TARGET): $(DOCKER_PREREQ))))
diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
index 91d9665..b2a7e76 100644
--- a/tests/docker/Makefile.include
+++ b/tests/docker/Makefile.include
@@ -5,6 +5,8 @@
 DOCKER_SUFFIX := .docker
 DOCKER_FILES_DIR := $(SRC_PATH)/tests/docker/dockerfiles
 DOCKER_DEPRECATED_IMAGES := debian
+# we don't run tests on intermediate images (used as base by another image)
+DOCKER_INTERMEDIATE_IMAGES := debian8 debian9 debian8-mxe debian-ports debian-sid
 DOCKER_IMAGES := $(filter-out $(DOCKER_DEPRECATED_IMAGES),$(sort $(notdir $(basename $(wildcard $(DOCKER_FILES_DIR)/*.docker)))))
 DOCKER_TARGETS := $(patsubst %,docker-image-%,$(DOCKER_IMAGES))
 # Use a global constant ccache directory to speed up repetitive builds
@@ -44,9 +46,6 @@ docker-image-%: $(DOCKER_FILES_DIR)/%.docker
 		"CHECK", "$*")
 else
 docker-image-%: $(DOCKER_FILES_DIR)/%.docker
-	@if test "$@" = docker-image-debian-bootstrap -a -z "$(EXECUTABLE)"; then \
-		echo WARNING: EXECUTABLE is not set, debootstrap may fail. 2>&1 ; \
-	fi
 	$(call quiet-command,\
 		$(DOCKER_SCRIPT) build qemu:$* $< \
 		$(if $V,,--quiet) $(if $(NOCACHE),--no-cache) \
@@ -54,6 +53,31 @@ docker-image-%: $(DOCKER_FILES_DIR)/%.docker
 		$(if $(EXTRA_FILES),--extra-files $(EXTRA_FILES))\
 		$(if $(EXECUTABLE),--include-executable=$(EXECUTABLE)),\
 		"BUILD","$*")
+
+# Special rule for debootstraped binfmt linux-user images
+docker-binfmt-image-debian-%: $(DOCKER_FILES_DIR)/debian-bootstrap.docker
+	$(if $(EXECUTABLE),,\
+		$(error EXECUTABLE not set, debootstrap of debian-$* would fail))
+	$(if $(wildcard $(EXECUTABLE)),,\
+		$(error Please build $(EXECUTABLE) first))
+	$(if $(DEB_ARCH),,\
+		$(error DEB_ARCH not set, debootstrap of debian-$* would fail))
+	$(if $(DEB_TYPE),,\
+		$(error DEB_TYPE not set, debootstrap of debian-$* would fail))
+	$(if $(filter $(QEMU_TARGET),$(TARGET_DIRS)),				\
+		$(call quiet-command,						\
+			DEB_ARCH=$(DEB_ARCH)					\
+			DEB_TYPE=$(DEB_TYPE)					\
+			$(DOCKER_SCRIPT) build qemu:debian-$* $< 		\
+			$(if $V,,--quiet) $(if $(NOCACHE),--no-cache) 		\
+			$(if $(NOUSER),,--add-current-user) 			\
+			$(if $(EXTRA_FILES),--extra-files $(EXTRA_FILES))	\
+			$(if $(EXECUTABLE),--include-executable=$(EXECUTABLE)), \
+			"BUILD","binfmt debian-$* (debootstrapped)"),		\
+		$(call quiet-command,						\
+			$(DOCKER_SCRIPT) check --quiet qemu:debian-$* $<,	\
+			"CHECK", "debian-$* exists"))
+
 endif
 
 # Enforce dependencies for composite images
@@ -97,8 +121,23 @@ docker-image-travis: NOUSER=1
 # Specialist build images, sometimes very limited tools
 docker-image-tricore-cross: docker-image-debian9
 
+# Rules for building linux-user powered images
+#
+# These are slower than using native cross compiler setups but can
+# work around issues with poorly working multi-arch systems and broken
+# packages.
+
+# Jessie is the last supported release for powerpc, but multi-arch is
+# broken so we need a qemu-linux-user for this target
+docker-binfmt-image-debian-powerpc-user: DEB_ARCH = powerpc
+docker-binfmt-image-debian-powerpc-user: DEB_TYPE = jessie
+docker-binfmt-image-debian-powerpc-user: QEMU_TARGET = ppc-linux-user
+docker-binfmt-image-debian-powerpc-user: EXECUTABLE = ${BUILD_DIR}/ppc-linux-user/qemu-ppc
+docker-image-debian-powerpc-user-cross: docker-binfmt-image-debian-powerpc-user
+DOCKER_USER_IMAGES += debian-powerpc-user
+
 # Expand all the pre-requistes for each docker image and test combination
-$(foreach i,$(DOCKER_IMAGES) $(DOCKER_DEPRECATED_IMAGES), \
+$(foreach i,$(filter-out $(DOCKER_INTERMEDIATE_IMAGES),$(DOCKER_IMAGES) $(DOCKER_DEPRECATED_IMAGES)), \
 	$(foreach t,$(DOCKER_TESTS) $(DOCKER_TOOLS), \
 		$(eval .PHONY: docker-$t@$i) \
 		$(eval docker-$t@$i: docker-image-$i docker-run-$t@$i) \
@@ -126,6 +165,11 @@ docker:
 	@echo
 	@echo 'Available container images:'
 	@echo '    $(DOCKER_IMAGES)'
+ifneq ($(DOCKER_USER_IMAGES),)
+	@echo
+	@echo 'Available linux-user images (docker-binfmt-image-debian-%):'
+	@echo '    $(DOCKER_USER_IMAGES)'
+endif
 	@echo
 	@echo 'Available tests:'
 	@echo '    $(DOCKER_TESTS)'
diff --git a/tests/docker/docker.py b/tests/docker/docker.py
index b279836..69e7130 100755
--- a/tests/docker/docker.py
+++ b/tests/docker/docker.py
@@ -113,6 +113,10 @@ def _copy_binary_with_libs(src, dest_dir):
             _copy_with_mkdir(l , dest_dir, so_path)
 
 def _read_qemu_dockerfile(img_name):
+    # special case for Debian linux-user images
+    if img_name.startswith("debian") and img_name.endswith("user"):
+        img_name = "debian-bootstrap"
+
     df = os.path.join(os.path.dirname(__file__), "dockerfiles",
                       img_name + ".docker")
     return open(df, "r").read()
diff --git a/tests/docker/dockerfiles/debian-bootstrap.docker b/tests/docker/dockerfiles/debian-bootstrap.docker
index 3a9125e..14212b9 100644
--- a/tests/docker/dockerfiles/debian-bootstrap.docker
+++ b/tests/docker/dockerfiles/debian-bootstrap.docker
@@ -17,5 +17,3 @@ RUN /debootstrap/debootstrap --second-stage
 # At this point we can install additional packages if we want
 # Duplicate deb line as deb-src
 RUN cat /etc/apt/sources.list | sed "s/deb/deb-src/" >> /etc/apt/sources.list
-RUN apt-get update
-RUN apt-get -y build-dep qemu
diff --git a/tests/docker/dockerfiles/debian-bootstrap.pre b/tests/docker/dockerfiles/debian-bootstrap.pre
index 7c76dce..56e1aa7 100755
--- a/tests/docker/dockerfiles/debian-bootstrap.pre
+++ b/tests/docker/dockerfiles/debian-bootstrap.pre
@@ -32,6 +32,15 @@ if [ -z "${DEB_TYPE}" ]; then
 
 fi
 
+# The following allow finer grain control over the defaults
+if [ -z "${DEB_VARIANT}" ]; then
+    DEB_VARIANT=buildd
+fi
+
+if [ -z "${DEB_URL}" ]; then
+    DEB_URL="http://httpredir.debian.org/debian"
+fi
+
 # We check in order for
 #
 #  - DEBOOTSTRAP_DIR pointing at a development checkout
@@ -107,5 +116,5 @@ fi
 
 echo "Building a rootfs using ${FAKEROOT} and ${DEBOOTSTRAP} ${DEB_ARCH}/${DEB_TYPE}"
 
-${FAKEROOT} ${DEBOOTSTRAP} --variant=buildd --foreign --arch=$DEB_ARCH $DEB_TYPE . http://httpredir.debian.org/debian || exit 1
+${FAKEROOT} ${DEBOOTSTRAP} --variant=$DEB_VARIANT --foreign --arch=$DEB_ARCH $DEB_TYPE . $DEB_URL || exit 1
 exit 0
diff --git a/tests/docker/dockerfiles/debian-powerpc-user-cross.docker b/tests/docker/dockerfiles/debian-powerpc-user-cross.docker
new file mode 100644
index 0000000..6938a84
--- /dev/null
+++ b/tests/docker/dockerfiles/debian-powerpc-user-cross.docker
@@ -0,0 +1,15 @@
+#
+# Docker powerpc cross-compiler target for QEMU
+#
+# We can't use current Debian stable cross-compilers to build powerpc
+# as it has been dropped as a release architecture. Using Debian Sid
+# is just far too sketchy a build environment. This leaves us the
+# final option of using linux-user. This image is based of the
+# debootstrapped qemu:debian-powerpc-user but doesn't need any extra
+# magic once it is setup.
+#
+FROM qemu:debian-powerpc-user
+
+RUN echo man-db man-db/auto-update boolean false | debconf-set-selections
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get build-dep -yy qemu
diff --git a/tests/docker/dockerfiles/debian8-mxe.docker b/tests/docker/dockerfiles/debian8-mxe.docker
index 9b8e577..2df4cc8 100644
--- a/tests/docker/dockerfiles/debian8-mxe.docker
+++ b/tests/docker/dockerfiles/debian8-mxe.docker
@@ -14,6 +14,6 @@ RUN apt-get update
 RUN DEBIAN_FRONTEND=noninteractive eatmydata \
     apt-get install -y --no-install-recommends \
         libpython2.7-stdlib \
-        $(apt-get -s install -y --no-install-recommends gw32.shared-mingw-w64 gw32.shared-mingw-w64 | egrep "^Inst mxe-x86-64-unknown-" | cut -d\  -f2)
+        $(apt-get -s install -y --no-install-recommends gw32.shared-mingw-w64 | egrep "^Inst mxe-x86-64-unknown-" | cut -d\  -f2)
 
 ENV PATH $PATH:/usr/lib/mxe/usr/bin/ 
diff --git a/tests/docker/dockerfiles/travis.docker b/tests/docker/dockerfiles/travis.docker
index c5ad39b..03ebfb0 100644
--- a/tests/docker/dockerfiles/travis.docker
+++ b/tests/docker/dockerfiles/travis.docker
@@ -5,7 +5,7 @@ ENV LC_ALL en_US.UTF-8
 RUN cat /etc/apt/sources.list | sed "s/# deb-src/deb-src/" >> /etc/apt/sources.list
 RUN apt-get update
 RUN apt-get -y build-dep qemu
-RUN apt-get -y install device-tree-compiler python2.7 python-yaml dh-autoreconf gdb strace lsof net-tools
+RUN apt-get -y install device-tree-compiler python2.7 python-yaml dh-autoreconf gdb strace lsof net-tools gcovr
 # Travis tools require PhantomJS / Neo4j / Maven accessible
 # in their PATH (QEMU build won't access them).
 ENV PATH /usr/local/phantomjs/bin:/usr/local/phantomjs:/usr/local/neo4j-3.2.7/bin:/usr/local/maven-3.5.2/bin:/usr/local/cmake-3.9.2/bin:/usr/local/clang-5.0.0/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
diff --git a/tests/docker/dockerfiles/ubuntu.docker b/tests/docker/dockerfiles/ubuntu.docker
index dabbf2a..7d724e7 100644
--- a/tests/docker/dockerfiles/ubuntu.docker
+++ b/tests/docker/dockerfiles/ubuntu.docker
@@ -1,18 +1,18 @@
 FROM ubuntu:16.04
 RUN echo "deb http://archive.ubuntu.com/ubuntu/ trusty universe multiverse" >> \
     /etc/apt/sources.list
-RUN apt-get update
 ENV PACKAGES flex bison \
     libusb-1.0-0-dev libiscsi-dev librados-dev libncurses5-dev libncursesw5-dev \
     libseccomp-dev libgnutls-dev libssh2-1-dev  libspice-server-dev \
     libspice-protocol-dev libnss3-dev libfdt-dev \
-    libgtk-3-dev libvte-2.91-dev libsdl1.2-dev libpng12-dev libpixman-1-dev \
+    libgtk-3-dev libvte-2.91-dev libsdl2-dev libpng12-dev libpixman-1-dev \
     libvdeplug-dev liblzo2-dev libsnappy-dev libbz2-dev libxen-dev librdmacm-dev libibverbs-dev \
     libsasl2-dev libjpeg-turbo8-dev xfslibs-dev libcap-ng-dev libbrlapi-dev libcurl4-gnutls-dev \
     libbluetooth-dev librbd-dev libaio-dev glusterfs-common libnuma-dev libepoxy-dev libdrm-dev libgbm-dev \
     libjemalloc-dev libcacard-dev libusbredirhost-dev libnfs-dev libcap-dev libattr1-dev \
     texinfo \
     gettext git make ccache python-yaml gcc clang sparse
-RUN apt-get -y install $PACKAGES
+RUN apt-get update && \
+    apt-get -y install $PACKAGES
 RUN dpkg -l $PACKAGES | sort > /packages.txt
-ENV FEATURES clang pyyaml
+ENV FEATURES clang pyyaml sdl2