cmd/go: TestScript/cgo_path, cgo_path_space failing on clang builders #43897
Description
clang builders are failing since CL 285873 on TestScript/cgo_path and cgo_path_space. Example test log:
go test proxy running at GOPROXY=http://127.0.0.1:38531/mod
--- FAIL: TestScript (0.01s)
--- FAIL: TestScript/cgo_path_space (0.01s)
script_test.go:213:
# Check that if the PATH directory containing the C compiler has a space,
# we can still use that compiler with cgo.
# Verifies #43808. (0.000s)
# Check if default CC was set by make.bash.
# If it was, this test is not valid. (0.011s)
> go env CC
[stdout]
/usr/bin/clang
> stdout '^(clang|gcc)$'
FAIL: testdata/script/cgo_path_space.txt:10: no match for `(?m)^(clang|gcc)$` found in stdout
--- FAIL: TestScript/cgo_path (1.09s)
script_test.go:213:
> [!cgo] skip
> env GOCACHE=$WORK/gocache # Looking for compile flags, so need a clean cache.
> [!windows] env PATH=.:$PATH
> [!windows] chmod 0755 p/gcc p/clang
> [!windows] exists -exec p/gcc p/clang
> [windows] exists -exec p/gcc.bat p/clang.bat
> ! exists p/bug.txt
> ! go build -x
[stderr]
WORK=$WORK/tmp/go-build1052024746
mkdir -p $WORK/b002/
cd $WORK/gopath/src/p
TERM='dumb' CGO_LDFLAGS='"-g" "-O2"' /workdir/go/pkg/tool/linux_amd64/cgo -objdir $WORK/b002/ -importpath m/p -- -I $WORK/b002/ -g -O2 ./p.go
cd $WORK
/usr/bin/clang -fno-caret-diagnostics -c -x c - -o /dev/null || true
/usr/bin/clang -Qunused-arguments -c -x c - -o /dev/null || true
/usr/bin/clang -fdebug-prefix-map=a=b -c -x c - -o /dev/null || true
/usr/bin/clang -gno-record-gcc-switches -c -x c - -o /dev/null || true
cd $WORK/b002
TERM='dumb' /usr/bin/clang -I $WORK/gopath/src/p -fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=$WORK/b002=/tmp/go-build -gno-record-gcc-switches -I ./ -g -O2 -o ./_x001.o -c _cgo_export.c
TERM='dumb' /usr/bin/clang -I $WORK/gopath/src/p -fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=$WORK/b002=/tmp/go-build -gno-record-gcc-switches -I ./ -g -O2 -o ./_x002.o -c p.cgo2.c
TERM='dumb' /usr/bin/clang -I $WORK/gopath/src/p -fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=$WORK/b002=/tmp/go-build -gno-record-gcc-switches -I ./ -g -O2 -o ./_cgo_main.o -c _cgo_main.c
cd $WORK/gopath/src
TERM='dumb' /usr/bin/clang -I ./p -fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=$WORK/b002=/tmp/go-build -gno-record-gcc-switches -o $WORK/b002/_cgo_.o $WORK/b002/_cgo_main.o $WORK/b002/_x001.o $WORK/b002/_x002.o -g -O2
TERM='dumb' /workdir/go/pkg/tool/linux_amd64/cgo -dynpackage p -dynimport $WORK/b002/_cgo_.o -dynout $WORK/b002/_cgo_import.go
cat >$WORK/b002/importcfg << 'EOF' # internal
# import config
packagefile runtime/cgo=/workdir/go/pkg/linux_amd64/runtime/cgo.a
packagefile syscall=/workdir/go/pkg/linux_amd64/syscall.a
EOF
/workdir/go/pkg/tool/linux_amd64/compile -o $WORK/b002/_pkg_.a -trimpath "$WORK/b002=>" -p m/p -buildid gqH4EgkQ64Qi1j6izAEl/gqH4EgkQ64Qi1j6izAEl -D "" -importcfg $WORK/b002/importcfg -pack -c=4 $WORK/b002/_cgo_gotypes.go $WORK/b002/p.cgo1.go $WORK/b002/_cgo_import.go
cd $WORK/gopath/src/p
/workdir/go/pkg/tool/linux_amd64/pack r $WORK/b002/_pkg_.a $WORK/b002/_x001.o $WORK/b002/_x002.o # internal
/workdir/go/pkg/tool/linux_amd64/buildid -w $WORK/b002/_pkg_.a # internal
cp $WORK/b002/_pkg_.a $WORK/gocache/bd/bd9282f5f13d2db133230f927d4ca5423416f840fc87faec3579a0f945c5e4a1-d # internal
mkdir -p $WORK/b001/
cat >$WORK/b001/importcfg << 'EOF' # internal
# import config
packagefile m/p=$WORK/b002/_pkg_.a
EOF
cd $WORK/gopath/src
/workdir/go/pkg/tool/linux_amd64/compile -o $WORK/b001/_pkg_.a -trimpath "$WORK/b001=>" -p m -complete -buildid U8zaZzIpXfEHtL8ygjeR/U8zaZzIpXfEHtL8ygjeR -D "" -importcfg $WORK/b001/importcfg -pack -c=4 ./m.go
/workdir/go/pkg/tool/linux_amd64/buildid -w $WORK/b001/_pkg_.a # internal
cp $WORK/b001/_pkg_.a $WORK/gocache/08/0867801f8c0bcd23fdc7f9c459dc9521ece335a3c49ec49edb652ea11d98bcad-d # internal
FAIL: testdata/script/cgo_path.txt:9: unexpected command success
FAIL