libgo patch RFC: Test the runtime package with the go tool

Ian Lance Taylor iant@golang.org
Fri Jun 23 20:56:00 GMT 2017


Many of the tests of the runtime package require invoking the go tool,
and therefore are not run when testing libgo.  This patch to
gotools/Makefile.am adds an additional test of the runtime package on
a native system, this time letting it run the newly built go tool.
This provides significantly more testing.  Bootstrapped and ran Go
testsuite on x86_64-pc-linux-gnu.

Ian


2017-06-23  Ian Lance Taylor  <iant@golang.org>

* Makefile.am (MOSTLYCLEANFILES): Remove testing files and logs.
(mostlyclean-local): Remove check-runtime-dir.
(ECHO_ENV): Define.
(check-go-tool): Depend on cgo.  Write command to testlog.
(check-runtime): New target.
(check): Depend on check-runtime.  Add @ to prettify output.
* Makefile.in: Rebuild.
-------------- next part --------------
Index: Makefile.am
===================================================================
--- Makefile.am	(revision 249203)
+++ Makefile.am	(working copy)
@@ -106,7 +106,12 @@ s-zdefaultcc: Makefile
 	$(SHELL) $(srcdir)/../move-if-change zdefaultcc.go.tmp zdefaultcc.go
 	$(STAMP) $@ 
 
-MOSTLYCLEANFILES = zdefaultcc.go s-zdefaultcc
+MOSTLYCLEANFILES = \
+	zdefaultcc.go s-zdefaultcc \
+	check-gccgo gotools.head *-testlog gotools.sum gotools.log
+
+mostlyclean-local:
+	rm -rf check-go-dir check-runtime-dir
 
 if NATIVE
 
@@ -156,6 +161,7 @@ check-gccgo: Makefile
 	chmod +x $@
 
 # CHECK_ENV sets up the environment to run the newly built go tool.
+# If you change this, change ECHO_ENV, below.
 CHECK_ENV = \
 	PATH=`echo $(abs_builddir):$${PATH} | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'`; \
 	export PATH; \
@@ -169,25 +175,54 @@ CHECK_ENV = \
 	LD_LIBRARY_PATH=`echo $${abs_libgodir}/.libs:$${LD_LIBRARY_PATH} | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'`; \
 	export LD_LIBRARY_PATH;
 
+# ECHO_ENV is a variant of CHECK_ENV to put into a testlog file.
+# It assumes that abs_libgodir is set.
+ECHO_ENV = PATH=`echo $(abs_builddir):$${PATH} | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'` GCCGO='$(abs_builddir)/check-gccgo' GCCGOTOOLDIR='$(abs_builddir)' GO_TESTING_GOTOOLS=yes LD_LIBRARY_PATH=`echo $${abs_libgodir}/.libs:$${LD_LIBRARY_PATH} | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'`
+
 # check-go-tools runs `go test cmd/go` in our environment.
-check-go-tool: go$(EXEEXT) check-head check-gccgo
-	rm -rf check-go-dir
+check-go-tool: go$(EXEEXT) cgo$(EXEEXT) check-head check-gccgo
+	rm -rf check-go-dir cmd_go-testlog
 	$(MKDIR_P) check-go-dir/src/cmd/go
 	cp $(cmdsrcdir)/go/*.go check-go-dir/src/cmd/go/
 	cp $(libgodir)/zstdpkglist.go check-go-dir/src/cmd/go/
 	cp zdefaultcc.go check-go-dir/src/cmd/go/
 	cp -r $(cmdsrcdir)/go/testdata check-go-dir/src/cmd/go/
+	@abs_libgodir=`cd $(libgodir) && $(PWD_COMMAND)`; \
+	abs_checkdir=`cd check-go-dir && $(PWD_COMMAND)`; \
+	echo "cd check-go-dir/src/cmd/go && $(ECHO_ENV) GOPATH=$${abs_checkdir} $(abs_builddir)/go$(EXEEXT) test -test.short -test.v" > cmd_go-testlog
 	$(CHECK_ENV) \
 	GOPATH=`cd check-go-dir && $(PWD_COMMAND)`; \
 	export GOPATH; \
-	(cd check-go-dir/src/cmd/go && $(abs_builddir)/go$(EXEEXT) test -test.short -test.v) >& cmd_go-testlog || true
+	(cd check-go-dir/src/cmd/go && $(abs_builddir)/go$(EXEEXT) test -test.short -test.v) >> cmd_go-testlog 2>&1 || true
 	grep '^--- ' cmd_go-testlog | sed -e 's/^--- \(.*\) ([^)]*)$$/\1/'
 
+# check-runtime runs `go test runtime` in our environment.
+# The runtime package is also tested as part of libgo,
+# but the runtime tests use the go tool heavily, so testing
+# here too will catch more problems.
+check-runtime: go$(EXEEXT) cgo$(EXEEXT) check-head check-gccgo
+	rm -rf check-runtime-dir runtime-testlog
+	$(MKDIR_P) check-runtime-dir
+	@abs_libgodir=`cd $(libgodir) && $(PWD_COMMAND)`; \
+	LD_LIBRARY_PATH=`echo $${abs_libgodir}/.libs:$${LD_LIBRARY_PATH} | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'`; \
+	GOARCH=`$(abs_builddir)/go$(EXEEXT) env GOARCH`; \
+	GOOS=`$(abs_builddir)/go$(EXEEXT) env GOOS`; \
+	files=`$(SHELL) $(libgosrcdir)/../match.sh --goarch=$${GOARCH} --goos=$${GOOS} --srcdir=$(libgosrcdir)/runtime --extrafiles="$(libgodir)/runtime_sysinfo.go $(libgodir)/sigtab.go" --tag=libffi`; \
+	echo "$(ECHO_ENV) GC='$(abs_builddir)/check-gccgo -fgo-compiling-runtime' GOARCH=$${GOARCH} GOOS=$${GOOS} $(SHELL) $(libgosrcdir)/../testsuite/gotest --goarch=$${GOARCH} --goos=$${GOOS} --basedir=$(libgosrcdir)/.. --srcdir=$(libgosrcdir)/runtime --pkgpath=runtime --pkgfiles='$${files}' -test.v" > runtime-testlog
+	$(CHECK_ENV) \
+	GC="$${GCCGO} -fgo-compiling-runtime"; \
+	export GC; \
+	GOARCH=`$(abs_builddir)/go$(EXEEXT) env GOARCH`; \
+	GOOS=`$(abs_builddir)/go$(EXEEXT) env GOOS`; \
+	files=`$(SHELL) $(libgosrcdir)/../match.sh --goarch=$${GOARCH} --goos=$${GOOS} --srcdir=$(libgosrcdir)/runtime --extrafiles="$(libgodir)/runtime_sysinfo.go $(libgodir)/sigtab.go" --tag=libffi`; \
+	$(SHELL) $(libgosrcdir)/../testsuite/gotest --goarch=$${GOARCH} --goos=$${GOOS} --basedir=$(libgosrcdir)/.. --srcdir=$(libgosrcdir)/runtime --pkgpath=runtime --pkgfiles="$${files}" -test.v >> runtime-testlog 2>&1 || true
+	grep '^--- ' runtime-testlog | sed -e 's/^--- \(.*\) ([^)]*)$$/\1/'
+
 # The check targets runs the tests and assembles the output files.
-check: check-head check-go-tool
-	mv gotools.head gotools.sum
-	cp gotools.sum gotools.log
-	for file in cmd_go-testlog; do \
+check: check-head check-go-tool check-runtime
+	@mv gotools.head gotools.sum
+	@cp gotools.sum gotools.log
+	@for file in cmd_go-testlog runtime-testlog; do \
 	  testname=`echo $${file} | sed -e 's/-testlog//' -e 's|_|/|'`; \
 	  echo "Running $${testname}" >> gotools.sum; \
 	  echo "Running $${testname}" >> gotools.log; \
@@ -196,22 +231,22 @@ check: check-head check-go-tool
 	done
 	@echo >> gotools.sum
 	@echo "		=== gotools Summary ===" >> gotools.sum
-	pass=`grep -c '^PASS' gotools.sum`; \
+	@pass=`grep -c '^PASS' gotools.sum`; \
 	if test "$${pass}" -ne "0"; then \
 	  echo "# of expected passes		$${pass}" >> gotools.sum; \
 	fi
-	fail=`grep -c '^FAIL' gotools.sum`; \
+	@fail=`grep -c '^FAIL' gotools.sum`; \
 	if test "$${fail}" -ne "0"; then \
 	  echo "# of unexpected failures	$${fail}" >> gotools.sum; \
 	fi
-	untested=`grep -c '^UNTESTED' gotools.sum`; \
+	@untested=`grep -c '^UNTESTED' gotools.sum`; \
 	if test "$${untested}" -ne "0"; then \
 	  echo "# of untested testcases		$${untested}" >> gotools.sum; \
 	fi
-	echo `echo $(GOC_FOR_TARGET) | sed -e 's/ .*//'`  `$(GOC_FOR_TARGET) -v 2>&1 | grep " version" | sed -n -e 's/.* \(version.*$$\)/\1/p'` >> gotools.sum
-	echo >> gotools.log
-	echo "runtest completed at `date`" >> gotools.log
-	if grep '^FAIL' gotools.sum >/dev/null 2>&1; then exit 1; fi
+	@echo `echo $(GOC_FOR_TARGET) | sed -e 's/ .*//'`  `$(GOC_FOR_TARGET) -v 2>&1 | grep " version" | sed -n -e 's/.* \(version.*$$\)/\1/p'` >> gotools.sum
+	@echo >> gotools.log
+	@echo "runtest completed at `date`" >> gotools.log
+	@if grep '^FAIL' gotools.sum >/dev/null 2>&1; then exit 1; fi
 
 .PHONY: check check-head check-go-tool
 
@@ -224,6 +259,3 @@ else
 # the go/build package.  Figure this out later.
 
 endif
-
-mostlyclean-local:
-	rm -rf check-go-dir


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