Building Go 1.10 with the Go 1.4 bootstrap, Thread Sanitizer from GCC 5
finds a data race during the the test suite of Go 1.10. With GCC 6, the
race doesn't seem to be present.

.##### ../misc/cgo/testsanitizers
--- FAIL: TestShared (0.03s)
    --- FAIL: TestShared/tsan_shared (2.54s)
        cshared_test.go:71: `/tmp/guix-build-go-1.10.drv-0/TestShared367937240/tsan_shared` exited with exit status 66
                ==================
                WARNING: ThreadSanitizer: data race (pid=28778)
                  Write of size 8 at 0x7ffff5495c30 by thread T1:
                    #0 pthread_attr_getstacksize <null> (tsan_shared+0x00000041be82)
                    #1 x_cgo_init <null> (libtsan_shared.so+0x00000008aeaf)
                    #2 runtime.rt0_go /tmp/guix-build-go-1.10.drv-0/go/src/runtime/asm_amd64.s:199 (libtsan_shared.so+0x000000081586)

                  Previous write of size 8 at 0x7ffff5495c30 by main thread:
                    #0 <null> <null> (0x000000000001)

                  Location is stack of thread T1.

                  Thread T1 (tid=28786, running) created by main thread at:
                    #0 pthread_create <null> (tsan_shared+0x00000040c794)
                    #1 _cgo_try_pthread_create <null> (libtsan_shared.so+0x00000008ad70)
                    #2 x_cgo_sys_thread_create <null> (libtsan_shared.so+0x00000008ab12)
                    #3 _rt0_amd64_lib /tmp/guix-build-go-1.10.drv-0/go/src/runtime/asm_amd64.s:56 (libtsan_shared.so+0x0000000813b6)

                SUMMARY: ThreadSanitizer: data race ??:0 __interceptor_pthread_attr_getstacksize

* gnu/packages/golang.scm (go-1.10): New variable.
(go-1.4)[native-inputs]: Use gcc:lib version 6.
This commit is contained in:
Leo Famulari 2018-02-22 00:02:08 -05:00
parent 13d9794d8f
commit fcbb8461a4
No known key found for this signature in database
GPG Key ID: 2646FA30BACA7F08
1 changed files with 118 additions and 1 deletions

View File

@ -187,7 +187,11 @@
(inputs
`(("tzdata" ,tzdata)
("pcre" ,pcre)
("gcc:lib" ,gcc "lib")))
;; Building Go 1.10 with the Go 1.4 bootstrap, Thread Sanitizer from GCC
;; 5 finds a data race during the the test suite of Go 1.10. With GCC 6,
;; the race doesn't seem to be present:
;; https://github.com/golang/go/issues/24046
("gcc:lib" ,gcc-6 "lib")))
(native-inputs
`(("pkg-config" ,%pkg-config)
("which" ,which)
@ -372,6 +376,119 @@ in the style of communicating sequential processes (@dfn{CSP}).")
,@(package-native-inputs go-1.4)))
(supported-systems %supported-systems)))
(define-public go-1.10
(package
(inherit go-1.9)
(name "go")
(version "1.10")
(source
(origin
(method url-fetch)
(uri (string-append "https://storage.googleapis.com/golang/"
name version ".src.tar.gz"))
(sha256
(base32
"093z1h0gmi458kv7smpx0ph6jm7ss9mzxa432kysbz85jhl4kppk"))))
(arguments
(substitute-keyword-arguments (package-arguments go-1.9)
((#:phases phases)
`(modify-phases ,phases
(replace 'prebuild
(lambda* (#:key inputs outputs #:allow-other-keys)
(let* ((gcclib (string-append (assoc-ref inputs "gcc:lib") "/lib"))
(ld (string-append (assoc-ref inputs "libc") "/lib"))
(loader (car (find-files ld "^ld-linux.+")))
(net-base (assoc-ref inputs "net-base"))
(tzdata-path
(string-append (assoc-ref inputs "tzdata") "/share/zoneinfo"))
(output (assoc-ref outputs "out")))
;; Removing net/ tests, which fail when attempting to access
;; network resources not present in the build container.
(for-each delete-file
'("net/listen_test.go"
"net/parse_test.go"
"net/cgo_unix_test.go"))
(substitute* "os/os_test.go"
(("/usr/bin") (getcwd))
(("/bin/pwd") (which "pwd"))
(("/bin/sh") (which "sh")))
;; Add libgcc to runpath
(substitute* "cmd/link/internal/ld/lib.go"
(("!rpath.set") "true"))
(substitute* "cmd/go/internal/work/gccgo.go"
(("cgoldflags := \\[\\]string\\{\\}")
(string-append "cgoldflags := []string{"
"\"-rpath=" gcclib "\""
"}"))
(("\"-lgcc_s\", ")
(string-append
"\"-Wl,-rpath=" gcclib "\", \"-lgcc_s\", ")))
(substitute* "cmd/go/internal/work/gc.go"
(("ldflags = setextld\\(ldflags, compiler\\)")
(string-append
"ldflags = setextld(ldflags, compiler)\n"
"ldflags = append(ldflags, \"-r\")\n"
"ldflags = append(ldflags, \"" gcclib "\")\n")))
;; Disable failing tests: these tests attempt to access
;; commands or network resources which are neither available
;; nor necessary for the build to succeed.
(for-each
(match-lambda
((file regex)
(substitute* file
((regex all before test_name)
(string-append before "Disabled" test_name)))))
'(("net/net_test.go" "(.+)(TestShutdownUnix.+)")
("net/dial_test.go" "(.+)(TestDialTimeout.+)")
("os/os_test.go" "(.+)(TestHostname.+)")
("time/format_test.go" "(.+)(TestParseInSydney.+)")
("time/format_test.go" "(.+)(TestParseInLocation.+)")
("os/exec/exec_test.go" "(.+)(TestEcho.+)")
("os/exec/exec_test.go" "(.+)(TestCommandRelativeName.+)")
("os/exec/exec_test.go" "(.+)(TestCatStdin.+)")
("os/exec/exec_test.go" "(.+)(TestCatGoodAndBadFile.+)")
("os/exec/exec_test.go" "(.+)(TestExitStatus.+)")
("os/exec/exec_test.go" "(.+)(TestPipes.+)")
("os/exec/exec_test.go" "(.+)(TestStdinClose.+)")
("os/exec/exec_test.go" "(.+)(TestIgnorePipeErrorOnSuccess.+)")
("syscall/syscall_unix_test.go" "(.+)(TestPassFD\\(.+)")
("os/exec/exec_test.go" "(.+)(TestExtraFiles/areturn.+)")
("cmd/go/go_test.go" "(.+)(TestCoverageWithCgo.+)")
("os/exec/exec_test.go" "(.+)(TestOutputStderrCapture.+)")
("os/exec/exec_test.go" "(.+)(TestExtraFiles.+)")
("os/exec/exec_test.go" "(.+)(TestExtraFilesRace.+)")
("net/lookup_test.go" "(.+)(TestLookupPort.+)")
("syscall/exec_linux_test.go"
"(.+)(TestCloneNEWUSERAndRemapNoRootDisableSetgroups.+)")))
;; fix shebang for testar script
;; note the target script is generated at build time.
(substitute* "../misc/cgo/testcarchive/carchive_test.go"
(("#!/usr/bin/env") (string-append "#!" (which "env"))))
(substitute* "net/lookup_unix.go"
(("/etc/protocols") (string-append net-base "/etc/protocols")))
(substitute* "net/port_unix.go"
(("/etc/services") (string-append net-base "/etc/services")))
(substitute* "time/zoneinfo_unix.go"
(("/usr/share/zoneinfo/") tzdata-path))
(substitute* (find-files "cmd" "\\.go")
(("/lib(64)?/ld-linux.*\\.so\\.[0-9]") loader))
#t)))
(replace 'set-bootstrap-variables
(lambda* (#:key outputs inputs #:allow-other-keys)
;; Tell the build system where to find the bootstrap Go.
(let ((go (assoc-ref inputs "go")))
(setenv "GOROOT_BOOTSTRAP" go)
(setenv "GOGC" "400")
;; Go 1.10 tries to write to $HOME in a test
(setenv "HOME" "/tmp")
#t)))))))))
(define-public go go-1.9)
(define-public go-github-com-alsm-ioprogress