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cmd/cgo: broken on darwin by latest c toolchain update from Apple #19741

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josharian opened this issue Mar 28, 2017 · 5 comments
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cmd/cgo: broken on darwin by latest c toolchain update from Apple #19741

josharian opened this issue Mar 28, 2017 · 5 comments
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@josharian
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I updated to the latest "Command Line Tools for Xcode" (version 8.3), and now see these all.bash failures:

--- FAIL: TestCgoTracebackContext (4.29s)
	crash_test.go:106: testprogcgo TracebackContext exit status: signal: killed
	crash_cgo_test.go:267: expected "OK\n" got 
--- FAIL: TestCgoCrashHandler (4.29s)
	crash_test.go:106: testprogcgo Crash exit status: signal: killed
	crash_test.go:193: output:
		
		
		wanted:
		main: recovered done
		new-thread: recovered done
		second-new-thread: recovered done
		main-again: recovered done
--- FAIL: TestCgoCCodeSIGPROF (3.83s)
	crash_test.go:106: testprogcgo CgoCCodeSIGPROF exit status: signal: killed
	crash_cgo_test.go:245: expected "OK\n" got 
--- FAIL: TestCgoPanicDeadlock (3.26s)
	crash_test.go:106: testprogcgo CgoPanicDeadlock exit status: signal: killed
	crash_cgo_test.go:236: output does not start with "panic: cgo error\n\n":
--- FAIL: TestCgoExternalThreadSIGPROF (9.88s)
	crash_cgo_test.go:115: exit status: signal: killed
--- FAIL: TestEnsureDropM (7.33s)
	crash_test.go:106: testprogcgo EnsureDropM exit status: signal: killed
	crash_cgo_test.go:183: expected "OK\n", got 
--- FAIL: TestCgoExecSignalMask (7.33s)
	crash_test.go:106: testprogcgo CgoExecSignalMask exit status: signal: killed
	crash_cgo_test.go:169: expected "OK\n", got 
--- FAIL: TestCgoCallbackGC (6.08s)
	crash_test.go:106: testprogcgo CgoCallbackGC exit status: signal: killed
	crash_cgo_test.go:66: expected "OK\n", but got:
--- FAIL: TestCgoSignalDeadlock (0.02s)
	crash_test.go:106: testprogcgo CgoSignalDeadlock exit status: signal: killed
	crash_cgo_test.go:34: expected "OK\n", but got:
--- FAIL: TestCgoTraceback (1.14s)
	crash_test.go:106: testprogcgo CgoTraceback exit status: signal: killed
	crash_cgo_test.go:43: expected "OK\n", but got:
--- FAIL: TestCgoExternalThreadSignal (7.35s)
	crash_cgo_test.go:138: exit status: signal: killed
--- FAIL: TestCgoExternalThreadPanic (7.24s)
	crash_test.go:106: testprogcgo CgoExternalThreadPanic exit status: signal: killed
	crash_cgo_test.go:78: want failure containing "panic: BOOM". output:
		
FAIL
FAIL	runtime	19.285s

--- FAIL: TestCoverageWithCgo (0.00s)
    --- FAIL: TestCoverageWithCgo/cgocover3 (1.09s)
    	go_test.go:260: running testgo [test -short -cover cgocover4]
    	go_test.go:275: standard output:
    	go_test.go:276: signal: killed
    		FAIL	cgocover4	0.009s
    		
    	go_test.go:289: go [test -short -cover cgocover4] failed unexpectedly: exit status 1
    --- FAIL: TestCoverageWithCgo/cgocover (1.09s)
    	go_test.go:260: running testgo [test -short -cover cgocover4]
    	go_test.go:275: standard output:
    	go_test.go:276: signal: killed
    		FAIL	cgocover4	0.010s
    		
    	go_test.go:289: go [test -short -cover cgocover4] failed unexpectedly: exit status 1
    --- FAIL: TestCoverageWithCgo/cgocover4 (1.10s)
    	go_test.go:260: running testgo [test -short -cover cgocover4]
    	go_test.go:275: standard output:
    	go_test.go:276: signal: killed
    		FAIL	cgocover4	0.005s
    		
    	go_test.go:289: go [test -short -cover cgocover4] failed unexpectedly: exit status 1
    --- FAIL: TestCoverageWithCgo/cgocover2 (1.10s)
    	go_test.go:260: running testgo [test -short -cover cgocover4]
    	go_test.go:275: standard output:
    	go_test.go:276: signal: killed
    		FAIL	cgocover4	0.005s
    		
    	go_test.go:289: go [test -short -cover cgocover4] failed unexpectedly: exit status 1
--- FAIL: TestCgoPkgConfig (1.41s)
	go_test.go:260: running testgo [env PKG_CONFIG]
	go_test.go:275: standard output:
	go_test.go:276: pkg-config
		
	go_test.go:260: running testgo [run /var/folders/1t/n61cbvls5bl293bbb0zyypqw0000gn/T/gotest346627925/foo.go]
	go_test.go:279: standard error:
	go_test.go:280: signal: killed
		
	go_test.go:289: go [run /var/folders/1t/n61cbvls5bl293bbb0zyypqw0000gn/T/gotest346627925/foo.go] failed unexpectedly: exit status 1
FAIL
FAIL	cmd/go	48.799s

--- FAIL: TestExternalLinkerCgoFile (1.10s)
	nm_test.go:114: running test executable failed: signal: killed 
FAIL
FAIL	cmd/nm	3.033s

cc @ianlancetaylor

System details

$ clang++ --version
Apple LLVM version 8.1.0 (clang-802.0.38)
Target: x86_64-apple-darwin16.4.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

go version devel darwin/amd64
GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/josh"
GORACE=""
GOROOT="/Users/josh/go/tip"
GOTOOLDIR="/Users/josh/go/tip/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/1t/n61cbvls5bl293bbb0zyypqw0000gn/T/go-build917437237=/tmp/go-build -gno-record-gcc-switches -fno-common"
CXX="clang++"
CGO_ENABLED="1"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOROOT/bin/go version: go version devel darwin/amd64
GOROOT/bin/go tool compile -V: compile version devel X:framepointer
uname -v: Darwin Kernel Version 16.4.0: Thu Dec 22 22:53:21 PST 2016; root:xnu-3789.41.3~3/RELEASE_X86_64
ProductName:	Mac OS X
ProductVersion:	10.12.3
BuildVersion:	16D32
lldb --version: lldb-370.0.37
  Swift-3.1
@josharian
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Also affects 1.8. Depending on the details of the cause and the fix, this might be 1.8.1 material. Tentatively marking it as such.

@josharian josharian added this to the Go1.8.1 milestone Mar 28, 2017
@martisch
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dup of #19734 ?

@repustate
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Adding another data point here - all my cgo stuff broke when upgrading to XCode 8.3. I was able to get around this by building binaries with -ldflags -s.

@ALTree ALTree mentioned this issue Mar 28, 2017
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@josharian
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Yes, dup of #19734. Apparently my search-fu was weak.

@repustate, knowing that -ldflags=-s is a workaround seems useful. Will you duplicate that comment at #19734? Thanks.

@bdarnell bdarnell mentioned this issue Mar 29, 2017
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@rsc
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rsc commented Apr 5, 2017

Removing milestone because this is a dup of another bug that is already correctly milestoned.

@rsc rsc removed this from the Go1.8.1 milestone Apr 5, 2017
@golang golang locked and limited conversation to collaborators Apr 5, 2018
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