code review 7938046: build, cmd/5l: actually report failures for -linkmode tests

src/run.bash

 #!/usr/bin/env bash
 # Copyright 2009 The Go Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style
 # license that can be found in the LICENSE file.
 
 set -e
 
 eval $(go env)
 
 unset CDPATH    # in case user has it set
@@ skipping 17 matching lines @@
         echo '# Building packages and commands.'
         time go install -a -v std
         echo
 fi
 
 # we must unset GOROOT_FINAL before tests, because runtime/debug requires
 # correct access to source code, so if we have GOROOT_FINAL in effect,
 # at least runtime/debug test will fail.
 unset GOROOT_FINAL
 
+# increase timeout for ARM up to 3 times the normal value
+timeout_scale=1
+[ "$GOARCH" == "arm" ] && timeout_scale=3
+
 echo '# Testing packages.'
-time go test std -short -timeout=120s
+time go test std -short -timeout=$(expr 120 \* $timeout_scale)s
 echo
 
 echo '# GOMAXPROCS=2 runtime -cpu=1,2,4'
-GOMAXPROCS=2 go test runtime -short -timeout=240s -cpu=1,2,4
+GOMAXPROCS=2 go test runtime -short -timeout=$(expr 240 \* $timeout_scale)s -cpu=1,2,4
 echo
 
 echo '# sync -cpu=10'
-go test sync -short -timeout=120s -cpu=10
+go test sync -short -timeout=$(expr 120 \* $timeout_scale)s -cpu=10
 
 # Race detector only supported on Linux and OS X,
 # and only on amd64, and only when cgo is enabled.
 case "$GOHOSTOS-$GOOS-$GOARCH-$CGO_ENABLED" in
 linux-linux-amd64-1 | darwin-darwin-amd64-1)
         echo
         echo '# Testing race detector.'
         go test -race -i flag
         go test -race -short flag
 esac
@@ skipping 71 matching lines @@
 unset GOMAXPROCS
 time go run run.go
 ) || exit $?
 
 echo
 echo '# Checking API compatibility.'
 go tool api -c $GOROOT/api/go1.txt -next $GOROOT/api/next.txt -except $GOROOT/api/except.txt
 
 echo
 echo ALL TESTS PASSED