tests/vm: Propagate V=1 down into the make inside the VM

Invoking 'make vm-build-freebsd' and friends with V=1 should
propagate that verbosity setting down into the build run
inside the VM. Make sure we do that. This brings it into
line with how the container tests handle V=1.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180803085230.30574-4-peter.maydell@linaro.org>
Signed-off-by: Fam Zheng <famz@redhat.com>

docs/devel/testing.rst

@@ -434,6 +434,7 @@ Debugging
 
 Add ``DEBUG=1`` and/or ``V=1`` to the make command to allow interactive
 debugging and verbose output. If this is not enough, see the next section.
+``V=1`` will be propagated down into the make jobs in the guest.
 
 Manual invocation
 -----------------

tests/vm/Makefile.include

@@ -40,6 +40,7 @@ vm-build-%: tests/vm/%.img
 		$(if $(V)$(DEBUG), --debug) \
 		$(if $(DEBUG), --interactive) \
 		$(if $(J),--jobs $(J)) \
+		$(if $(V),--verbose) \
 		--image "$<" \
 		--build-qemu $(SRC_PATH), \
 		"  VM-BUILD $*")

tests/vm/basevm.py

@@ -211,6 +211,8 @@ def parse_args(vm_name):
                       help="force build image even if image exists")
     parser.add_option("--jobs", type=int, default=multiprocessing.cpu_count() / 2,
                       help="number of virtual CPUs")
+    parser.add_option("--verbose", "-V", action="store_true",
+                      help="Pass V=1 to builds within the guest")
     parser.add_option("--build-image", "-b", action="store_true",
                       help="build image")
     parser.add_option("--build-qemu",
@@ -241,7 +243,8 @@ def main(vmcls):
             vm.add_source_dir(args.build_qemu)
             cmd = [vm.BUILD_SCRIPT.format(
                    configure_opts = " ".join(argv),
-                   jobs=args.jobs)]
+                   jobs=args.jobs,
+                   verbose = "V=1" if args.verbose else "")]
         else:
             cmd = argv
         img = args.image

tests/vm/freebsd

@@ -23,8 +23,8 @@ class FreeBSDVM(basevm.BaseVM):
         cd $(mktemp -d /var/tmp/qemu-test.XXXXXX);
         tar -xf /dev/vtbd1;
         ./configure {configure_opts};
-        gmake -j{jobs};
-        gmake -j{jobs} check;
+        gmake -j{jobs} {verbose};
+        gmake -j{jobs} check {verbose};
     """
 
     def build_image(self, img):

tests/vm/netbsd

@@ -23,8 +23,8 @@ class NetBSDVM(basevm.BaseVM):
         cd $(mktemp -d /var/tmp/qemu-test.XXXXXX);
         tar -xf /dev/rld1a;
         ./configure --python=python2.7 {configure_opts};
-        gmake -j{jobs};
-        gmake -j{jobs} check;
+        gmake -j{jobs} {verbose};
+        gmake -j{jobs} check {verbose};
     """
 
     def build_image(self, img):

tests/vm/openbsd

@@ -23,9 +23,9 @@ class OpenBSDVM(basevm.BaseVM):
         cd $(mktemp -d /var/tmp/qemu-test.XXXXXX);
         tar -xf /dev/rsd1c;
         ./configure --cc=x86_64-unknown-openbsd6.1-gcc-4.9.4 --python=python2.7 {configure_opts};
-        gmake -j{jobs};
+        gmake -j{jobs} {verbose};
         # XXX: "gmake check" seems to always hang or fail
-        #gmake -j{jobs} check;
+        #gmake -j{jobs} check {verbose};
     """
 
     def build_image(self, img):

tests/vm/ubuntu.i386

@@ -26,7 +26,7 @@ class UbuntuX86VM(basevm.BaseVM):
         tar -xf /dev/vdb;
         ./configure {configure_opts};
         make -j{jobs};
-        make -j{jobs} check;
+        make check -j{jobs} {verbose};
     """
 
     def _gen_cloud_init_iso(self):