Let tests result in UNSUPPORTED; use that for unbuildable C++ cases

7 files changed, 69 insertions, 33 deletions

diff --git a/ChangeLog b/ChangeLog
index db19e88d4f..da5c0ef24e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,22 @@
 2015-03-10  Roland McGrath  <roland@hack.frob.com>
 
+	* scripts/evaluate-test.sh: Grok exit code 77 as UNSUPPORTED and exit
+	with 0 in that case.
+	* Makefile (summarize-tests): New canned sequence, factored out of
+	commands for targets tests and xtests.  Display summary lines that
+	don't start with PASS: or XFAIL: rather than ones that do start with
+	ERROR: or FAIL:.  Make the commands fail if any summary lines fail
+	to start with X?PASS: or XFAIL: or UNSUPPORTED: rather than if any
+	do start with ERROR: or FAIL:.
+	* dlfcn/Makefile (tests): Add bug-atexit3 back here unconditionally
+	(except for [$(build-shared) = yes]).
+	(tests-unsupported) [$(CXX) empty]: Add bug-atexit3.
+	(LDLIBS-bug-atexit3-lib.so): Conditionalize on [$(CXX) nonempty].
+	($(objpfx)bug-atexit3, $(objpfx)bug-atexit3.out): Likewise.
+	* nptl/Makefile: Revert 2015-03-04 changes.
+	[$(CXX) empty] (tests-unsupported): New variable.
+	* debug/Makefile: Likewise.
+
 	* posix/regcomp.c: Fix comment typos and formatting to harmonize with
 	gnulib file.  Replace __attribute with __attribute__ throughout.
 
diff --git a/Makefile b/Makefile
index 17e796fe1b..7edf517724 100644
--- a/Makefile
+++ b/Makefile
@@ -316,6 +316,13 @@ $(objpfx)begin-end-check.out: scripts/begin-end-check.pl
 	$(evaluate-test)
 endif
 
+define summarize-tests
+@egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true
+@echo "Summary of test results$2:"
+@sed 's/:.*//' < $(objpfx)$1 | sort | uniq -c
+@egrep -q -v '^(X?PASS|XFAIL|UNSUPPORTED):' $(objpfx)$1 && false
+endef
+
 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
 tests: $(tests-special)
 	$(..)scripts/merge-test-results.sh -s $(objpfx) "" \
@@ -324,22 +331,12 @@ tests: $(tests-special)
 	$(..)scripts/merge-test-results.sh -t $(objpfx) subdir-tests.sum \
 	  $(sort $(subdirs) .) \
 	  > $(objpfx)tests.sum
-	@grep '^ERROR:' $(objpfx)tests.sum || true
-	@grep '^FAIL:' $(objpfx)tests.sum || true
-	@echo "Summary of test results:"
-	@sed 's/:.*//' < $(objpfx)tests.sum | sort | uniq -c
-	@if grep -q '^ERROR:' $(objpfx)tests.sum; then exit 1; fi
-	@if grep -q '^FAIL:' $(objpfx)tests.sum; then exit 1; fi
+	$(call summarize-tests,tests.sum)
 xtests:
 	$(..)scripts/merge-test-results.sh -t $(objpfx) subdir-xtests.sum \
 	  $(sort $(subdirs)) \
 	  > $(objpfx)xtests.sum
-	@grep '^ERROR:' $(objpfx)xtests.sum || true
-	@grep '^FAIL:' $(objpfx)xtests.sum || true
-	@echo "Summary of test results for extra tests:"
-	@sed 's/:.*//' < $(objpfx)xtests.sum | sort | uniq -c
-	@if grep -q '^ERROR:' $(objpfx)xtests.sum; then exit 1; fi
-	@if grep -q '^FAIL:' $(objpfx)xtests.sum; then exit 1; fi
+	$(call summarize-tests,xtests.sum, for extra tests)
 
 # The realclean target is just like distclean for the parent, but we want
 # the subdirs to know the difference in case they care.
diff --git a/Rules b/Rules
index 829beac487..e237d0352a 100644
--- a/Rules
+++ b/Rules
@@ -198,6 +198,18 @@ $(objpfx)%.out: /dev/null $(objpfx)%	# Make it 2nd arg for canned sequence.
 	$(make-test-out) > $@; \
 	$(evaluate-test)
 
+# tests-unsupported lists tests that we will not try to build at all in
+# this configuration.  Note this runs every time because it does not
+# actually create its target.  The dependency on Makefile is meant to
+# ensure that it runs after a Makefile change to add a test to the list
+# when it previously ran and produced a .out file (probably for a failure).
+ifneq "$(strip $(tests-unsupported))" ""
+$(tests-unsupported:%=$(objpfx)%.out): $(objpfx)%.out: Makefile
+	@rm -f $@
+	$(..)scripts/evaluate-test.sh $(patsubst $(common-objpfx)%.out,%,$@) \
+				      77 false false > $(@:.out=.test-result)
+endif
+
 endif	# tests
 
 
diff --git a/debug/Makefile b/debug/Makefile
index c775223ef2..9ff357b6a8 100644
--- a/debug/Makefile
+++ b/debug/Makefile
@@ -133,11 +133,13 @@ LDFLAGS-tst-backtrace6 = -rdynamic
 
 tests = backtrace-tst tst-longjmp_chk tst-chk1 tst-chk2 tst-chk3 \
 	tst-lfschk1 tst-lfschk2 tst-lfschk3 test-strcpy_chk test-stpcpy_chk \
+	tst-chk4 tst-chk5 tst-chk6 tst-lfschk4 tst-lfschk5 tst-lfschk6 \
 	tst-longjmp_chk2 tst-backtrace2 tst-backtrace3 tst-backtrace4 \
 	tst-backtrace5 tst-backtrace6
 
-ifneq (,$(CXX))
-tests += tst-chk4 tst-chk5 tst-chk6 tst-lfschk4 tst-lfschk5 tst-lfschk6
+ifeq (,$(CXX))
+tests-unsupported = tst-chk4 tst-chk5 tst-chk6 \
+		    tst-lfschk4 tst-lfschk5 tst-lfschk6
 endif
 
 extra-libs = libSegFault libpcprofile
diff --git a/dlfcn/Makefile b/dlfcn/Makefile
index 34b1b5d450..759780dd34 100644
--- a/dlfcn/Makefile
+++ b/dlfcn/Makefile
@@ -36,7 +36,7 @@ endif
 ifeq (yes,$(build-shared))
 tests = glrefmain failtest tst-dladdr default errmsg1 tstcxaatexit \
 	bug-dlopen1 bug-dlsym1 tst-dlinfo bug-atexit1 bug-atexit2 \
-	tstatexit bug-dl-leaf tst-rec-dlopen
+	bug-atexit3 tstatexit bug-dl-leaf tst-rec-dlopen
 endif
 modules-names = glreflib1 glreflib2 glreflib3 failtestmod defaultmod1 \
 		defaultmod2 errmsg1mod modatexit modcxaatexit \
@@ -59,8 +59,9 @@ tststatic4-ENV = $(tststatic-ENV)
 tststatic5-ENV = $(tststatic-ENV)
 
 ifneq (,$(CXX))
-tests += bug-atexit3
 modules-names += bug-atexit3-lib
+else
+tests-unsupported += bug-atexit3
 endif
 endif
 
@@ -136,9 +137,11 @@ $(objpfx)bug-atexit1.out: $(objpfx)bug-atexit1-lib.so
 $(objpfx)bug-atexit2: $(libdl)
 $(objpfx)bug-atexit2.out: $(objpfx)bug-atexit2-lib.so
 
+ifneq (,$(CXX))
 LDLIBS-bug-atexit3-lib.so = -lstdc++ -lgcc_eh
 $(objpfx)bug-atexit3: $(libdl)
 $(objpfx)bug-atexit3.out: $(objpfx)bug-atexit3-lib.so
+endif
 
 $(objpfx)bug-dl-leaf: $(objpfx)bug-dl-leaf-lib.so
 $(objpfx)bug-dl-leaf.out: $(objpfx)bug-dl-leaf-lib-cb.so
diff --git a/nptl/Makefile b/nptl/Makefile
index 00d13cf859..d784c8d3d2 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -245,8 +245,8 @@ tests = tst-typesizes \
 	tst-cancel6 tst-cancel7 tst-cancel8 tst-cancel9 tst-cancel10 \
 	tst-cancel11 tst-cancel12 tst-cancel13 tst-cancel14 tst-cancel15 \
 	tst-cancel16 tst-cancel17 tst-cancel18 tst-cancel19 tst-cancel20 \
-	tst-cancel21 tst-cancel22 tst-cancel23 $(if $(CXX),tst-cancel24) \
-	tst-cancel25 tst-cancel-self tst-cancel-self-cancelstate \
+	tst-cancel21 tst-cancel22 tst-cancel23 tst-cancel24 tst-cancel25 \
+	tst-cancel-self tst-cancel-self-cancelstate \
 	tst-cancel-self-canceltype tst-cancel-self-testcancel \
 	tst-cleanup0 tst-cleanup1 tst-cleanup2 tst-cleanup3 tst-cleanup4 \
 	tst-flock1 tst-flock2 \
@@ -364,19 +364,14 @@ link-libc-static := $(common-objpfx)libc.a $(static-gnulib) \
 		    $(common-objpfx)libc.a
 
 tests-static += tst-locale1 tst-locale2 tst-stackguard1-static \
-		tst-cancel21-static tst-cond8-static \
+		tst-cancel21-static tst-cancel24-static tst-cond8-static \
 		tst-mutex8-static tst-mutexpi8-static tst-sem11-static \
 		tst-sem12-static
-tests += tst-stackguard1-static tst-cancel21-static \
+tests += tst-stackguard1-static tst-cancel21-static tst-cancel24-static \
 	 tst-cond8-static tst-mutex8-static tst-mutexpi8-static \
 	 tst-sem11-static tst-sem12-static
 xtests-static += tst-setuid1-static
 
-ifneq (,$(CXX))
-tests += tst-cancel24-static
-tests-static += tst-cancel24-static
-endif
-
 # These tests are linked with libc before libpthread
 tests-reverse += tst-cancel5 tst-cancel23 tst-vfork1x tst-vfork2x
 
@@ -388,6 +383,11 @@ tests-special += $(objpfx)tst-tls6.out $(objpfx)tst-cleanup0-cmp.out \
 endif
 endif
 
+ifeq (,$(CXX))
+# These tests require a C++ compiler and runtime.
+tests-unsupported += tst-cancel24 tst-cancel24-static
+endif
+
 include ../Rules
 
 ifeq (yes,$(build-shared))
diff --git a/scripts/evaluate-test.sh b/scripts/evaluate-test.sh
index 6c002e535a..ad4da6e575 100755
--- a/scripts/evaluate-test.sh
+++ b/scripts/evaluate-test.sh
@@ -25,15 +25,20 @@ orig_rc=$rc
 xfail=$3
 stop_on_failure=$4
 
-if [ $rc -eq 0 ]; then
-  result="PASS"
-else
-  result="FAIL"
-fi
-
-if $xfail; then
-  result="X$result"
+if [ $rc -eq 77 ]; then
+  result="UNSUPPORTED"
   rc=0
+else
+  if [ $rc -eq 0 ]; then
+    result="PASS"
+  else
+    result="FAIL"
+  fi
+
+  if $xfail; then
+    result="X$result"
+    rc=0
+  fi
 fi
 
 echo "$result: $test_name"