10:49 a.m.
Gnulib's make coverage (or init-coverage, build-coverage, gen-coverage)
is not a 1-1 replacement for the original configure option. Our old
--enable-test-coverage seems to be close to gnulib's make build-coverage
except gnulib runs lcov in that phase and the build actually fails for
me even before lcov is run. And since we want to be able to just build
libvirt without running lcov, I suggest reverting to our own
implementation.
I admit the best solution would be to somehow make gnulib support what
we need (and fix the actual build), but I don't feel brave enough to do
that. Eric? :-)
Also if we ever switch to glib and drop gnulib completely, we would need
to reintroduce our own implementation anyway.
I had to do some changes to resolve conflicts. The changes were not too
big, but I figured I'd rather resend this patch especially when I
originally forgot to Cc the original author of the reverted patch.
Jiri Denemark (2):
Revert "configure: Remove --enable-test-coverage"
Revert "docs: hacking: Add 'Code coverage reports' section"
Makefile.am | 20 +++++++++++++++++---
configure.ac | 18 ++++++++++++++++++
docs/hacking.html.in | 29 -----------------------------
src/Makefile.am | 2 ++
src/remote/Makefile.inc.am | 2 ++
tests/Makefile.am | 2 ++
tools/Makefile.am | 6 ++++++
7 files changed, 47 insertions(+), 32 deletions(-)
--
2.22.1
10:49 a.m.
New subject: [libvirt] [PATCH v2 1/2] Revert "configure: Remove --enable-test-coverage"
This reverts commit f38d553e2d6ec2f041cb7947b5eafcdd3b26ae65.
Gnulib's make coverage (or init-coverage, build-coverage, gen-coverage)
is not a 1-1 replacement for the original configure option. Our old
--enable-test-coverage seems to be close to gnulib's make build-coverage
except gnulib runs lcov in that phase and the build actually fails for
me even before lcov is run. And since we want to be able to just build
libvirt without running lcov, I suggest reverting to our own
implementation.
Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com>
Reviewed-by: Michal Privoznik <mprivozn(a)redhat.com>
---
Notes:
Version 2:
- rebased
Makefile.am | 20 +++++++++++++++++---
configure.ac | 18 ++++++++++++++++++
src/Makefile.am | 2 ++
src/remote/Makefile.inc.am | 2 ++
tests/Makefile.am | 2 ++
tools/Makefile.am | 6 ++++++
6 files changed, 47 insertions(+), 3 deletions(-)
diff --git a/Makefile.am b/Makefile.am
index dedd8d2ff8..27c49280c4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -16,15 +16,15 @@
## License along with this library. If not, see
## <http://www.gnu.org/licenses/>;.
+LCOV = lcov
+GENHTML = genhtml
+
SUBDIRS = . gnulib/lib include/libvirt src tools docs gnulib/tests \
tests po examples
XZ_OPT ?= -v -T0
export XZ_OPT
-# have gnulib 'make coverage' output to 'cov' dir
-COVERAGE_OUT = "cov"
-
ACLOCAL_AMFLAGS = -I m4
EXTRA_DIST = \
@@ -87,6 +87,20 @@ check-local: all tests
check-access: all
@($(MAKE) $(AM_MAKEFLAGS) -C tests check-access)
+cov: clean-cov
+ $(MKDIR_P) $(top_builddir)/coverage
+ $(LCOV) -c -o $(top_builddir)/coverage/libvirt.info.tmp \
+ -d $(top_builddir)/src \
+ -d $(top_builddir)/tests
+ $(LCOV) -r $(top_builddir)/coverage/libvirt.info.tmp \
+ -o $(top_builddir)/coverage/libvirt.info
+ rm $(top_builddir)/coverage/libvirt.info.tmp
+ $(GENHTML) --show-details -t "libvirt" -o $(top_builddir)/coverage \
+ --legend $(top_builddir)/coverage/libvirt.info
+
+clean-cov:
+ rm -rf $(top_builddir)/coverage
+
MAINTAINERCLEANFILES = .git-module-status
dist-hook: gen-AUTHORS
diff --git a/configure.ac b/configure.ac
index ebb2e24e21..f41c6d5d86 100644
--- a/configure.ac
+++ b/configure.ac
@@ -726,6 +726,23 @@ fi
AC_SUBST([VIR_TEST_EXPENSIVE_DEFAULT])
AM_CONDITIONAL([WITH_EXPENSIVE_TESTS], [test $VIR_TEST_EXPENSIVE_DEFAULT = 1])
+LIBVIRT_ARG_ENABLE([TEST_COVERAGE], [turn on code coverage instrumentation], [no])
+case "$enable_test_coverage" in
+ yes|no) ;;
+ *) AC_MSG_ERROR([bad value ${enable_test_coverga} for test-coverage option]) ;;
+esac
+
+if test "$enable_test_coverage" = yes; then
+ save_WARN_CFLAGS=$WARN_CFLAGS
+ WARN_CFLAGS=
+ gl_WARN_ADD([-fprofile-arcs])
+ gl_WARN_ADD([-ftest-coverage])
+ COVERAGE_FLAGS=$WARN_CFLAGS
+ AC_SUBST([COVERAGE_CFLAGS], [$COVERAGE_FLAGS])
+ AC_SUBST([COVERAGE_LDFLAGS], [$COVERAGE_FLAGS])
+ WARN_CFLAGS=$save_WARN_CFLAGS
+fi
+
LIBVIRT_ARG_ENABLE([TEST_OOM], [memory allocation failure checking], [no])
case "$enable_test_oom" in
yes|no) ;;
@@ -1011,6 +1028,7 @@ LIBVIRT_WIN_RESULT_WINDRES
AC_MSG_NOTICE([])
AC_MSG_NOTICE([Test suite])
AC_MSG_NOTICE([])
+AC_MSG_NOTICE([ Coverage: $enable_test_coverage])
AC_MSG_NOTICE([ Alloc OOM: $enable_test_oom])
AC_MSG_NOTICE([])
AC_MSG_NOTICE([Miscellaneous])
diff --git a/src/Makefile.am b/src/Makefile.am
index d02d4deb6d..3ae4b87abb 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -37,8 +37,10 @@ AM_CFLAGS = $(LIBXML_CFLAGS) \
$(WARN_CFLAGS) \
$(LOCK_CHECKING_CFLAGS) \
$(WIN32_EXTRA_CFLAGS) \
+ $(COVERAGE_CFLAGS) \
$(NULL)
AM_LDFLAGS = $(DRIVER_MODULES_LDFLAGS) \
+ $(COVERAGE_LDFLAGS) \
$(RELRO_LDFLAGS) \
$(NO_INDIRECT_LDFLAGS) \
$(CYGWIN_EXTRA_LDFLAGS) \
diff --git a/src/remote/Makefile.inc.am b/src/remote/Makefile.inc.am
index 09535ee6bb..aca0b40140 100644
--- a/src/remote/Makefile.inc.am
+++ b/src/remote/Makefile.inc.am
@@ -45,6 +45,7 @@ REMOTE_DAEMON_CFLAGS = \
$(LIBNL_CFLAGS) \
$(WARN_CFLAGS) \
$(PIE_CFLAGS) \
+ $(COVERAGE_CFLAGS) \
-I$(srcdir)/access \
-I$(srcdir)/conf \
-I$(srcdir)/rpc \
@@ -55,6 +56,7 @@ REMOTE_DAEMON_LD_FLAGS = \
$(PIE_LDFLAGS) \
$(NO_INDIRECT_LDFLAGS) \
$(NO_UNDEFINED_LDFLAGS) \
+ $(COVERAGE_LDFLAGS) \
$(NULL)
REMOTE_DAEMON_LD_ADD = \
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 31a22ebefd..6b5d05bbed 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -41,6 +41,7 @@ AM_CFLAGS = \
$(SELINUX_CFLAGS) \
$(APPARMOR_CFLAGS) \
$(YAJL_CFLAGS) \
+ $(COVERAGE_CFLAGS) \
$(XDR_CFLAGS) \
$(WARN_CFLAGS)
@@ -267,6 +268,7 @@ endif WITH_SECDRIVER_SELINUX
# This is a fake SSH we use from virnetsockettest
ssh_SOURCES = ssh.c
+ssh_LDADD = $(COVERAGE_LDFLAGS)
if WITH_LIBXL
test_programs += xlconfigtest \
diff --git a/tools/Makefile.am b/tools/Makefile.am
index 35b442d975..29fdbfe846 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -33,6 +33,7 @@ WARN_CFLAGS += $(STRICT_FRAME_LIMIT_CFLAGS)
AM_CFLAGS = \
$(WARN_CFLAGS) \
+ $(COVERAGE_CFLAGS) \
$(PIE_CFLAGS) \
$(LIBXML_CFLAGS) \
$(NULL)
@@ -143,6 +144,7 @@ libvirt_shell_la_CFLAGS = \
libvirt_shell_la_LDFLAGS = \
$(AM_LDFLAGS) \
$(PIE_LDFLAGS) \
+ $(COVERAGE_LDFLAGS) \
$(NULL)
libvirt_shell_la_LIBADD = \
../src/libvirt.la \
@@ -188,6 +190,7 @@ endif ! WITH_BHYVE
virt_host_validate_LDFLAGS = \
$(AM_LDFLAGS) \
$(PIE_LDFLAGS) \
+ $(COVERAGE_LDFLAGS) \
$(NULL)
virt_host_validate_LDADD = \
@@ -213,6 +216,7 @@ virt_login_shell_helper_SOURCES = \
virt_login_shell_helper_LDFLAGS = \
$(AM_LDFLAGS) \
$(PIE_LDFLAGS) \
+ $(COVERAGE_LDFLAGS) \
$(NULL)
virt_login_shell_helper_LDADD = \
../src/libvirt.la \
@@ -256,6 +260,7 @@ virsh_SOURCES = \
virsh_LDFLAGS = \
$(AM_LDFLAGS) \
$(PIE_LDFLAGS) \
+ $(COVERAGE_LDFLAGS) \
$(NULL)
virsh_LDADD = \
$(STATIC_BINARIES) \
@@ -273,6 +278,7 @@ virt_admin_SOURCES = \
virt_admin_LDFLAGS = \
$(AM_LDFLAGS) \
+ $(COVERAGE_LDFLAGS) \
$(STATIC_BINARIES) \
$(PIE_LDFLAGS) \
$(NULL)
--
2.22.1
10:49 a.m.
New subject: [libvirt] [PATCH v2 2/2] Revert "docs: hacking: Add 'Code coverage reports' section"
This reverts commit 47cbc929870aaff6b01ba24cd028b8787a1ae9a4.
The section is no longer correct when the patch switching to gnulib's
make coverage was reverted.
Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com>
---
Notes:
Version 2:
- new patch
docs/hacking.html.in | 29 -----------------------------
1 file changed, 29 deletions(-)
diff --git a/docs/hacking.html.in b/docs/hacking.html.in
index 859e33a874..90376968c3 100644
--- a/docs/hacking.html.in
+++ b/docs/hacking.html.in
@@ -1473,34 +1473,5 @@ int foo()
in the same way, but still make sure they get reviewed if non-trivial.
</li>
</ul>
- <h2><a id="coverage">Code coverage
reports</a></h2>
-
- <p>
- Code coverage HTML reports can be generated with:
- </p>
-
-<pre>
- make coverage
-</pre>
-
- <p>
- Reports will be generated in the <code>cov/</code> directory. Point a
- web browser at <code>cov/index.html</code> for the full report.
- </p>
-
- <p>
- The <code>make coverage</code> target is provided by
<code>gnulib</code>.
- It is a convenience helper for calling the following 3 targets in order.
- It may be useful to occasionally call these directly.
-
- <ul>
- <li><code>make init-coverage</code>: run <code>make
clean</code> and
- remove all code coverage counter files (*.gcno, etc.)</li>
- <li><code>make build-coverage</code>: run
<code>make</code> and
- <code>make check</code> with <code>CFLAGS</code> filled
in with
- necessary coverage flags</li>
- <li><code>make gen-coverage</code>: generate the HTML
report</li>
- </ul>
- </p>
</body>
</html>
--
2.22.1
11:31 a.m.
On 8/13/19 10:49 AM, Jiri Denemark wrote:
Gnulib's make coverage (or init-coverage, build-coverage,
gen-coverage)
is not a 1-1 replacement for the original configure option. Our old
--enable-test-coverage seems to be close to gnulib's make build-coverage
except gnulib runs lcov in that phase and the build actually fails for
me even before lcov is run. And since we want to be able to just build
libvirt without running lcov, I suggest reverting to our own
implementation.
I admit the best solution would be to somehow make gnulib support what
we need (and fix the actual build), but I don't feel brave enough to do
that. Eric? :-)
There, it's probably better to ask the bug-gnulib list (rather than just
me), to possibly widen the set of developers that could actually make
those sort of changes.
Also if we ever switch to glib and drop gnulib completely, we would need
to reintroduce our own implementation anyway.
True.
I had to do some changes to resolve conflicts. The changes were not too
big, but I figured I'd rather resend this patch especially when I
originally forgot to Cc the original author of the reverted patch.
Jiri Denemark (2):
Revert "configure: Remove --enable-test-coverage"
Revert "docs: hacking: Add 'Code coverage reports' section"
ACK series
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
1958
days inactive
1958
days old
3 comments
2 participants
participants (2)
-
Eric Blake -
Jiri Denemark