[jira] [Work logged] (BEAM-8242) Go: unregistered Go functions fail when using -buildmode=pie

2019-09-18 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/BEAM-8242?focusedWorklogId=314606=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-314606
 ]

ASF GitHub Bot logged work on BEAM-8242:


Author: ASF GitHub Bot
Created on: 18/Sep/19 19:46
Start Date: 18/Sep/19 19:46
Worklog Time Spent: 10m 
  Work Description: ianlancetaylor commented on issue #9585: [BEAM-8242] 
Support -buildmode=pie with unregistered Go functions
URL: https://github.com/apache/beam/pull/9585#issuecomment-532837597
 
 
   Thanks!
 

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Issue Time Tracking
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Worklog Id: (was: 314606)
Time Spent: 1.5h  (was: 1h 20m)

> Go: unregistered Go functions fail when using -buildmode=pie
> 
>
> Key: BEAM-8242
> URL: https://issues.apache.org/jira/browse/BEAM-8242
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-go
>Affects Versions: 2.15.0
> Environment: GNU/Linux
>Reporter: Ian Lance Taylor
>Assignee: Robert Burke
>Priority: Major
>   Original Estimate: 0h
>  Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> If a Go program is built with -buildmode=pie, the code that transfers an 
> unregistered function fails.  It looks up the symbol in the symbol table, but 
> that is not the location of the function at execution time.  This causes a 
> program crash when calling the function.
> I have a patch for this problem that I will send shortly.



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[jira] [Work logged] (BEAM-8242) Go: unregistered Go functions fail when using -buildmode=pie

2019-09-18 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/BEAM-8242?focusedWorklogId=314601=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-314601
 ]

ASF GitHub Bot logged work on BEAM-8242:


Author: ASF GitHub Bot
Created on: 18/Sep/19 19:36
Start Date: 18/Sep/19 19:36
Worklog Time Spent: 10m 
  Work Description: lostluck commented on pull request #9585: [BEAM-8242] 
Support -buildmode=pie with unregistered Go functions
URL: https://github.com/apache/beam/pull/9585
 
 
   
 

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Issue Time Tracking
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Worklog Id: (was: 314601)
Time Spent: 1h 20m  (was: 1h 10m)

> Go: unregistered Go functions fail when using -buildmode=pie
> 
>
> Key: BEAM-8242
> URL: https://issues.apache.org/jira/browse/BEAM-8242
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-go
>Affects Versions: 2.15.0
> Environment: GNU/Linux
>Reporter: Ian Lance Taylor
>Assignee: Robert Burke
>Priority: Major
>   Original Estimate: 0h
>  Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> If a Go program is built with -buildmode=pie, the code that transfers an 
> unregistered function fails.  It looks up the symbol in the symbol table, but 
> that is not the location of the function at execution time.  This causes a 
> program crash when calling the function.
> I have a patch for this problem that I will send shortly.



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[jira] [Work logged] (BEAM-8242) Go: unregistered Go functions fail when using -buildmode=pie

2019-09-18 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/BEAM-8242?focusedWorklogId=314593=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-314593
 ]

ASF GitHub Bot logged work on BEAM-8242:


Author: ASF GitHub Bot
Created on: 18/Sep/19 19:25
Start Date: 18/Sep/19 19:25
Worklog Time Spent: 10m 
  Work Description: ianlancetaylor commented on pull request #9585: 
[BEAM-8242] Support -buildmode=pie with unregistered Go functions
URL: https://github.com/apache/beam/pull/9585#discussion_r325852241
 
 

 ##
 File path: sdks/go/pkg/beam/core/util/symtab/symtab_test.go
 ##
 @@ -0,0 +1,115 @@
+// Licensed to the Apache Software Foundation (ASF) under one or more
+// contributor license agreements.  See the NOTICE file distributed with
+// this work for additional information regarding copyright ownership.
+// The ASF licenses this file to You under the Apache License, Version 2.0
+// (the "License"); you may not use this file except in compliance with
+// the License.  You may obtain a copy of the License at
+//
+//http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package symtab
+
+import (
+   "io/ioutil"
+   "os"
+   "os/exec"
+   "path/filepath"
+   "runtime"
+   "strings"
+   "testing"
+)
+
+// TestSym2Addr builds and runs this test program.
+const testprog = `
+package main
+
+import (
+   "fmt"
+   "os"
+   "runtime"
+
+   "github.com/apache/beam/sdks/go/pkg/beam/core/util/symtab"
+)
+
+func die(format string, a ...interface{}) {
+   fmt.Fprintf(os.Stderr, format, a...)
+   os.Exit(1)
+}
+
+func main() {
+   syms, err := symtab.New(os.Args[0])
+   if err != nil {
+   die("%s: could not read symbols: %v", os.Args[0], err)
+   }
+
+   symPC, err := syms.Sym2Addr("main.main")
+   if err != nil {
+   die("Sym2Addr(%q) failed: %v", "main.main", err)
+   }
+
+   runtimePC := fnaddr()
+   if symPC != runtimePC {
+   die("PC from symbol table %x != runtime PC %x", symPC, 
runtimePC)
+   }
+}
+
+// fnaddr returns the entry address of its caller.
+func fnaddr() uintptr {
+   var pcs [2]uintptr
+   n := runtime.Callers(2, pcs[:])
+   frames := runtime.CallersFrames(pcs[:n])
+   frame, _ := frames.Next()
+   return frame.Func.Entry()
+}
+`
+
+func TestSym2Addr(t *testing.T) {
+   f, err := ioutil.TempFile("", "TestSym2Addr*.go")
+   if err != nil {
+   t.Fatal(err)
+   }
+
+   fname := f.Name()
+   defer os.Remove(fname)
+
+   if _, err := f.WriteString(testprog); err != nil {
+   t.Fatal(err)
+   }
+   if err := f.Close(); err != nil {
+   t.Fatal(err)
+   }
+
+   bin := strings.TrimSuffix(fname, ".go")
+   defer os.Remove(bin)
+
+   gotool := filepath.Join(runtime.GOROOT(), "bin", "go")
+
+   for _, arg := range []string{"", "-buildmode=pie"} {
 
 Review comment:
   Done.
 

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Issue Time Tracking
---

Worklog Id: (was: 314593)
Time Spent: 1h  (was: 50m)

> Go: unregistered Go functions fail when using -buildmode=pie
> 
>
> Key: BEAM-8242
> URL: https://issues.apache.org/jira/browse/BEAM-8242
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-go
>Affects Versions: 2.15.0
> Environment: GNU/Linux
>Reporter: Ian Lance Taylor
>Assignee: Robert Burke
>Priority: Major
>   Original Estimate: 0h
>  Time Spent: 1h
>  Remaining Estimate: 0h
>
> If a Go program is built with -buildmode=pie, the code that transfers an 
> unregistered function fails.  It looks up the symbol in the symbol table, but 
> that is not the location of the function at execution time.  This causes a 
> program crash when calling the function.
> I have a patch for this problem that I will send shortly.



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[jira] [Work logged] (BEAM-8242) Go: unregistered Go functions fail when using -buildmode=pie

2019-09-18 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/BEAM-8242?focusedWorklogId=314550=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-314550
 ]

ASF GitHub Bot logged work on BEAM-8242:


Author: ASF GitHub Bot
Created on: 18/Sep/19 18:30
Start Date: 18/Sep/19 18:30
Worklog Time Spent: 10m 
  Work Description: lostluck commented on issue #9585: [BEAM-8242] Support 
-buildmode=pie with unregistered Go functions
URL: https://github.com/apache/beam/pull/9585#issuecomment-532809867
 
 
   Run Go Postcommit
 

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Issue Time Tracking
---

Worklog Id: (was: 314550)
Time Spent: 50m  (was: 40m)

> Go: unregistered Go functions fail when using -buildmode=pie
> 
>
> Key: BEAM-8242
> URL: https://issues.apache.org/jira/browse/BEAM-8242
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-go
>Affects Versions: 2.15.0
> Environment: GNU/Linux
>Reporter: Ian Lance Taylor
>Assignee: Robert Burke
>Priority: Major
>   Original Estimate: 0h
>  Time Spent: 50m
>  Remaining Estimate: 0h
>
> If a Go program is built with -buildmode=pie, the code that transfers an 
> unregistered function fails.  It looks up the symbol in the symbol table, but 
> that is not the location of the function at execution time.  This causes a 
> program crash when calling the function.
> I have a patch for this problem that I will send shortly.



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[jira] [Work logged] (BEAM-8242) Go: unregistered Go functions fail when using -buildmode=pie

2019-09-18 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/BEAM-8242?focusedWorklogId=314532=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-314532
 ]

ASF GitHub Bot logged work on BEAM-8242:


Author: ASF GitHub Bot
Created on: 18/Sep/19 17:59
Start Date: 18/Sep/19 17:59
Worklog Time Spent: 10m 
  Work Description: wcn3 commented on pull request #9585: [BEAM-8242] 
Support -buildmode=pie with unregistered Go functions
URL: https://github.com/apache/beam/pull/9585#discussion_r325815099
 
 

 ##
 File path: sdks/go/pkg/beam/core/util/symtab/symtab_test.go
 ##
 @@ -0,0 +1,115 @@
+// Licensed to the Apache Software Foundation (ASF) under one or more
+// contributor license agreements.  See the NOTICE file distributed with
+// this work for additional information regarding copyright ownership.
+// The ASF licenses this file to You under the Apache License, Version 2.0
+// (the "License"); you may not use this file except in compliance with
+// the License.  You may obtain a copy of the License at
+//
+//http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package symtab
+
+import (
+   "io/ioutil"
+   "os"
+   "os/exec"
+   "path/filepath"
+   "runtime"
+   "strings"
+   "testing"
+)
+
+// TestSym2Addr builds and runs this test program.
+const testprog = `
+package main
+
+import (
+   "fmt"
+   "os"
+   "runtime"
+
+   "github.com/apache/beam/sdks/go/pkg/beam/core/util/symtab"
+)
+
+func die(format string, a ...interface{}) {
+   fmt.Fprintf(os.Stderr, format, a...)
+   os.Exit(1)
+}
+
+func main() {
+   syms, err := symtab.New(os.Args[0])
+   if err != nil {
+   die("%s: could not read symbols: %v", os.Args[0], err)
+   }
+
+   symPC, err := syms.Sym2Addr("main.main")
+   if err != nil {
+   die("Sym2Addr(%q) failed: %v", "main.main", err)
+   }
+
+   runtimePC := fnaddr()
+   if symPC != runtimePC {
+   die("PC from symbol table %x != runtime PC %x", symPC, 
runtimePC)
+   }
+}
+
+// fnaddr returns the entry address of its caller.
+func fnaddr() uintptr {
+   var pcs [2]uintptr
+   n := runtime.Callers(2, pcs[:])
+   frames := runtime.CallersFrames(pcs[:n])
+   frame, _ := frames.Next()
+   return frame.Func.Entry()
+}
+`
+
+func TestSym2Addr(t *testing.T) {
+   f, err := ioutil.TempFile("", "TestSym2Addr*.go")
+   if err != nil {
+   t.Fatal(err)
+   }
+
+   fname := f.Name()
+   defer os.Remove(fname)
+
+   if _, err := f.WriteString(testprog); err != nil {
+   t.Fatal(err)
+   }
+   if err := f.Close(); err != nil {
+   t.Fatal(err)
+   }
+
+   bin := strings.TrimSuffix(fname, ".go")
+   defer os.Remove(bin)
+
+   gotool := filepath.Join(runtime.GOROOT(), "bin", "go")
+
+   for _, arg := range []string{"", "-buildmode=pie"} {
 
 Review comment:
   Perhaps it'd be good to explicitly test -buildmode=x where x is whatever the 
default is now. This way, if the default changed in the future to PIE, we'd 
have confidence we were testing the other relevant buildmode.
 

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Issue Time Tracking
---

Worklog Id: (was: 314532)
Time Spent: 40m  (was: 0.5h)

> Go: unregistered Go functions fail when using -buildmode=pie
> 
>
> Key: BEAM-8242
> URL: https://issues.apache.org/jira/browse/BEAM-8242
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-go
>Affects Versions: 2.15.0
> Environment: GNU/Linux
>Reporter: Ian Lance Taylor
>Priority: Major
>   Original Estimate: 0h
>  Time Spent: 40m
>  Remaining Estimate: 0h
>
> If a Go program is built with -buildmode=pie, the code that transfers an 
> unregistered function fails.  It looks up the symbol in the symbol table, but 
> that is not the location of the function at execution time.  This causes a 
> program crash when calling the function.
> I have a patch for this problem that I will send shortly.



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[jira] [Work logged] (BEAM-8242) Go: unregistered Go functions fail when using -buildmode=pie

2019-09-18 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/BEAM-8242?focusedWorklogId=314531=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-314531
 ]

ASF GitHub Bot logged work on BEAM-8242:


Author: ASF GitHub Bot
Created on: 18/Sep/19 17:58
Start Date: 18/Sep/19 17:58
Worklog Time Spent: 10m 
  Work Description: wcn3 commented on issue #9585: [BEAM-8242] Support 
-buildmode=pie with unregistered Go functions
URL: https://github.com/apache/beam/pull/9585#issuecomment-532796819
 
 
   R @lostluck 
 

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Issue Time Tracking
---

Worklog Id: (was: 314531)
Time Spent: 0.5h  (was: 20m)

> Go: unregistered Go functions fail when using -buildmode=pie
> 
>
> Key: BEAM-8242
> URL: https://issues.apache.org/jira/browse/BEAM-8242
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-go
>Affects Versions: 2.15.0
> Environment: GNU/Linux
>Reporter: Ian Lance Taylor
>Priority: Major
>   Original Estimate: 0h
>  Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> If a Go program is built with -buildmode=pie, the code that transfers an 
> unregistered function fails.  It looks up the symbol in the symbol table, but 
> that is not the location of the function at execution time.  This causes a 
> program crash when calling the function.
> I have a patch for this problem that I will send shortly.



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[jira] [Work logged] (BEAM-8242) Go: unregistered Go functions fail when using -buildmode=pie

2019-09-16 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/BEAM-8242?focusedWorklogId=313217=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-313217
 ]

ASF GitHub Bot logged work on BEAM-8242:


Author: ASF GitHub Bot
Created on: 16/Sep/19 17:50
Start Date: 16/Sep/19 17:50
Worklog Time Spent: 10m 
  Work Description: ianlancetaylor commented on issue #9585: [BEAM-8242] 
Support -buildmode=pie with unregistered Go functions
URL: https://github.com/apache/beam/pull/9585#issuecomment-531884946
 
 
   R @wcn3 
 

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Issue Time Tracking
---

Worklog Id: (was: 313217)
Time Spent: 20m  (was: 10m)

> Go: unregistered Go functions fail when using -buildmode=pie
> 
>
> Key: BEAM-8242
> URL: https://issues.apache.org/jira/browse/BEAM-8242
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-go
>Affects Versions: 2.15.0
> Environment: GNU/Linux
>Reporter: Ian Lance Taylor
>Priority: Major
>   Original Estimate: 0h
>  Time Spent: 20m
>  Remaining Estimate: 0h
>
> If a Go program is built with -buildmode=pie, the code that transfers an 
> unregistered function fails.  It looks up the symbol in the symbol table, but 
> that is not the location of the function at execution time.  This causes a 
> program crash when calling the function.
> I have a patch for this problem that I will send shortly.



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[jira] [Work logged] (BEAM-8242) Go: unregistered Go functions fail when using -buildmode=pie

2019-09-16 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/BEAM-8242?focusedWorklogId=313215=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-313215
 ]

ASF GitHub Bot logged work on BEAM-8242:


Author: ASF GitHub Bot
Created on: 16/Sep/19 17:50
Start Date: 16/Sep/19 17:50
Worklog Time Spent: 10m 
  Work Description: ianlancetaylor commented on pull request #9585: 
[BEAM-8242] Support -buildmode=pie with unregistered Go functions
URL: https://github.com/apache/beam/pull/9585
 
 
   When fetching function addresses from the symbol table, adjust them by the 
offset between the symbol table address and the execution address.
   
   
   
   Thank you for your contribution! Follow this checklist to help us 
incorporate your contribution quickly and easily:
   
- [ ] [**Choose 
reviewer(s)**](https://beam.apache.org/contribute/#make-your-change) and 
mention them in a comment (`R: @username`).
- [ ] Format the pull request title like `[BEAM-XXX] Fixes bug in 
ApproximateQuantiles`, where you replace `BEAM-XXX` with the appropriate JIRA 
issue, if applicable. This will automatically link the pull request to the 
issue.
- [ ] If this contribution is large, please file an Apache [Individual 
Contributor License Agreement](https://www.apache.org/licenses/icla.pdf).
   
   Post-Commit Tests Status (on master branch)
   

   
   Lang | SDK | Apex | Dataflow | Flink | Gearpump | Samza | Spark
   --- | --- | --- | --- | --- | --- | --- | ---
   Go | [![Build 
Status](https://builds.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/badge/icon)](https://builds.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/)
 | --- | --- | [![Build 
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 | --- | --- | [![Build 
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 | [![Build 
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 | [![Build 
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 | [![Build 
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   Python | [![Build 
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