Cherry-pick patch from V8 upstream that fixes instanceof problem #7638

fhinkel · 2016-07-09T18:05:57Z

Checklist

make -j4 test (UNIX)
test is included
commit message follows commit guidelines

Affected core subsystem(s)

deps V8

Description of change

Float the following patch:
InstanceOfStub incorrectly interprets the hole as a prototype.
https://codereview.chromium.org/1810953002/

Fixes: #7592

/cc @bnoordhuis

addaleax · 2016-07-09T18:11:09Z

I think you may want to switch the order of the commits here, so that there is no point in the history in which make test fails?

fhinkel · 2016-07-09T19:19:55Z

Oh, you're totally right. Done.

bnoordhuis · 2016-07-10T07:52:47Z

test/parallel/test-instanceof.js

@@ -0,0 +1,7 @@
+'use strict';
+require('../common');
+var assert = require('assert');


Can you use const here and below?

bnoordhuis · 2016-07-10T07:56:32Z

@fhinkel Can you reword the commit log to be more like (e.g.) b88dee2? We use 'cherry-pick' for a clean cherry-pick and 'backport' if the patch needed nudging.

(At least, I do. Possibly some unwritten rule that we need to write down somewhere.)

fhinkel · 2016-07-10T10:44:17Z

I changed the commit message and the test. @bnoordhuis can you have another look, please?

addaleax · 2016-07-10T11:31:57Z

LGTM

bnoordhuis · 2016-07-10T14:58:04Z

Thanks, LGTM.

CI: https://ci.nodejs.org/job/node-test-pull-request/3236/
CI: https://ci.nodejs.org/job/node-test-commit-v8-linux/191/
EDIT: https://ci.nodejs.org/job/node-test-commit-v8-linux/192/

MylesBorins · 2016-07-10T18:45:28Z

@bnoordhuis I started playing with making a backport / cherry-pick guide. Is there any other "unwritten rules" you can think of?

bnoordhuis · 2016-07-11T09:22:45Z

@thealphanerd "Run the V8 and node.js test suite on the CI". That's about it.

EDIT: "Don't forget to bump the patchlevel..."

Fishrock123 · 2016-07-11T11:52:17Z

FreeBSD has an 'interesting' error:

ln -fs out/Release/node node
./node: not found
Makefile:158: recipe for target 'test/addons/.buildstamp' failed
gmake[1]: *** [test/addons/.buildstamp] Error 1
gmake[1]: *** Waiting for unfinished jobs....
gmake[1]: Leaving directory '/usr/home/iojs/build/workspace/node-test-commit-freebsd/nodes/freebsd10-64'
Makefile:321: recipe for target 'run-ci' failed
gmake: *** [run-ci] Error 2
Build step 'Execute shell' marked build as failure

Not sure what's up with that.

Looks like ppc little-endian ubuntu is failing though, and the v8 CI also seems to have some failures.

not ok 579 parallel/test-instanceof
# 
# assert.js:89
# throw new assert.AssertionError({
# ^
# AssertionError: false == true
# at Object.<anonymous> (/home/iojs/build/workspace/node-test-commit-plinux/nodes/ppcbe-ubuntu1404/test/parallel/test-instanceof.js:7:1)
# at Module._compile (module.js:541:32)
# at Object.Module._extensions..js (module.js:550:10)
# at Module.load (module.js:458:32)
# at tryModuleLoad (module.js:417:12)
# at Function.Module._load (module.js:409:3)
# at Module.runMain (module.js:575:10)
# at run (bootstrap_node.js:352:7)
# at startup (bootstrap_node.js:144:9)
# at bootstrap_node.js:467:3

bnoordhuis · 2016-07-11T12:46:25Z

I think it's because it's missing the PPC changes from v8/v8@3a903c4.

mhdawson · 2016-07-11T16:13:44Z

Quite possible that there are similar changes for s390 as well. Will look at adding s390 to the v8 test job as well.

bnoordhuis · 2016-07-11T16:18:45Z

It doesn't matter for this particular patch (no s390 in v6) but it would be good in general.

fhinkel · 2016-07-11T18:00:12Z

Thanks for running the CI. I'll add the PPC and X87 patches.

fhinkel · 2016-07-11T18:32:51Z

I cherry-picked the patches for the remaining architectures (not for s390 because it's not in v6). Can you have another look, please?

addaleax · 2016-07-11T18:36:06Z

CI: https://ci.nodejs.org/job/node-test-commit/4055/
CI: https://ci.nodejs.org/job/node-test-commit-v8-linux/194/

fhinkel · 2016-07-11T18:37:02Z

Do I need to bump the patch level or are we only doing that for 5.1?

bnoordhuis · 2016-07-11T19:18:30Z

Yes, please bump the patchlevel.

fhinkel · 2016-07-11T19:48:42Z

Bumped and rebased, so test is added after cherry-picks.

ofrobots · 2016-07-15T17:07:50Z

LGTM.

Original commit message: InstanceOfStub incorrectly interprets the hole as a prototype. Repair this to match what the runtime correctly does, by first checking if the function is a constructor before we access the prototype. R=verwaest@chromium.org BUG= Committed: https://crrev.com/2aa070be4fd2960df98905b254f12ed801ef26cd Cr-Commit-Position: refs/heads/master@{#34863} This fixes the behavior of instanceof when the second parameter is not a constructor. Fixes: #7592 PR-URL: #7638 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

Original commit message: PPC: InstanceOfStub incorrectly interprets the hole as a prototype. Port 2aa070b Original commit message: Repair this to match what the runtime correctly does, by first checking if the function is a constructor before we access the prototype. R=mvstanton@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG= Review URL: https://codereview.chromium.org/1811013002 Cr-Commit-Position: refs/heads/master@{#34869} Fixes: #7592 for PPC PR-URL: #7638 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

Original commit message: port 2aa070b (r34863) original commit message: Repair this to match what the runtime correctly does, by first checking if the function is a constructor before we access the prototype. BUG= Review URL: https://codereview.chromium.org/1809333002 Cr-Commit-Position: refs/heads/master@{#34880} Fixes: #7592 for X87 PR-URL: #7638 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

Ref: #7592. PR-URL: #7638 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

PR-URL: #7638 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

Notable changes: * **buffer**: * Improve performance of Buffer.from(str, 'hex') and Buffer#write(str, 'hex'). (Christopher Jeffrey) #7602 * Fix creating from zero-length ArrayBuffer. (Ingvar Stepanyan) #7176 * **deps**: * Upgrade to V8 5.0.71.xx. (Ben Noordhuis) #7531 * Backport V8 instanceof bugfix (Franziska Hinkelmann) #7638 * **repl**: Fix issue with function redeclaration. (Prince J Wesley) #7794 * **util**: Fix inspecting of boxed symbols. (Anna Henningsen) #7641 PR-URL: #7782

evanlucas · 2016-07-21T22:28:48Z

landed in v6.x in 71f84b5...164981a. Thanks!

Notable changes: * **buffer**: * Improve performance of Buffer.from(str, 'hex') and Buffer#write(str, 'hex'). (Christopher Jeffrey) #7602 * Fix creating from zero-length ArrayBuffer. (Ingvar Stepanyan) #7176 * **deps**: * Upgrade to V8 5.0.71.xx. (Ben Noordhuis) #7531 * Backport V8 instanceof bugfix (Franziska Hinkelmann) #7638 * **repl**: Fix issue with function redeclaration. (Prince J Wesley) #7794 * **util**: Fix inspecting of boxed symbols. (Anna Henningsen) #7641 PR-URL: #7782

bnoordhuis · 2016-07-22T07:57:26Z

I would have preferred it if this PR had landed as a single commit. We now have commits in our history where the build is known broken on some architectures, making things like git-bisect more difficult.

fhinkel · 2016-07-22T08:32:44Z

@bnoordhuis I'm not sure I understand your concern. The test is added after the three cherry-picks, I don't think the build is broken in any of the revisions.

Should bumping the patch level be a separate commit or squashed? @thealphanerd where's your cherry-pick guide?

bnoordhuis · 2016-07-22T09:23:09Z

Sorry, I must have been thinking of another PR. You're right, here it was just the test that was failing without the PPC changes.

I have a preference for bumping the patch level in the same commit. It makes it an atomic unit, easy to roll back.

Original commit message: InstanceOfStub incorrectly interprets the hole as a prototype. Repair this to match what the runtime correctly does, by first checking if the function is a constructor before we access the prototype. R=verwaest@chromium.org BUG= Committed: https://crrev.com/2aa070be4fd2960df98905b254f12ed801ef26cd Cr-Commit-Position: refs/heads/master@{#34863} This fixes the behavior of instanceof when the second parameter is not a constructor. Fixes: nodejs/node#7592 PR-URL: nodejs/node#7638 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

Original commit message: PPC: InstanceOfStub incorrectly interprets the hole as a prototype. Port 2aa070b Original commit message: Repair this to match what the runtime correctly does, by first checking if the function is a constructor before we access the prototype. R=mvstanton@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG= Review URL: https://codereview.chromium.org/1811013002 Cr-Commit-Position: refs/heads/master@{#34869} Fixes: nodejs/node#7592 for PPC PR-URL: nodejs/node#7638 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

Original commit message: port 2aa070b (r34863) original commit message: Repair this to match what the runtime correctly does, by first checking if the function is a constructor before we access the prototype. BUG= Review URL: https://codereview.chromium.org/1809333002 Cr-Commit-Position: refs/heads/master@{#34880} Fixes: nodejs/node#7592 for X87 PR-URL: nodejs/node#7638 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

PR-URL: nodejs/node#7638 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

### Notable changes * **buffer**: * Improve performance of Buffer.from(str, 'hex') and Buffer#write(str, 'hex'). (Christopher Jeffrey) [#7602](nodejs/node#7602) * Fix creating from zero-length ArrayBuffer. (Ingvar Stepanyan) [#7176](nodejs/node#7176) * **deps**: * Upgrade to V8 5.0.71.xx. (Ben Noordhuis) [#7531](nodejs/node#7531) * Backport V8 instanceof bugfix (Franziska Hinkelmann) [#7638](nodejs/node#7638) * **repl**: Fix issue with function redeclaration. (Prince J Wesley) [#7794](nodejs/node#7794) * **util**: Fix inspecting of boxed symbols. (Anna Henningsen) [#7641](nodejs/node#7641)

rvagg · 2016-10-19T03:43:33Z

@fhinkel do you think this should also land on master? it's dying out with the v6.x series but perhaps it's generic enough to warrant keeping around.

fhinkel · 2016-10-19T08:48:36Z

@rvagg You mean if the test should be ported to master? Yes, let me do that. Then we can let this die with v6.x.

rvagg · 2016-10-20T01:27:42Z

@fhinkel yeah, thanks, it came up as one of the commits on v6.x that are not on v7.x and I just wanted clarification regarding whether this should live on beyond v6.x and getting it on master is obviously the way to do that.

Add regression test for issue nodejs#7592. The issue was fixed in upstream V8 and this test case was previously added with a manual cherry pick for v6.x. Related to: nodejs#7638 and nodejs#7592.

Add regression test for issue #7592. The issue was fixed in upstream V8 and this test case was previously added with a manual cherry pick for v6.x. Related to: #7638 and #7592. PR-URL: #9178 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>

nodejs-github-bot added the lib / src Issues and PRs related to general changes in the lib or src directory. label Jul 9, 2016

addaleax added v8 engine Issues and PRs related to the V8 dependency. and removed lib / src Issues and PRs related to general changes in the lib or src directory. labels Jul 9, 2016

fhinkel force-pushed the i7592 branch from 478a99b to 219a62c Compare July 9, 2016 19:11

addaleax added the v6.x label Jul 9, 2016

bnoordhuis reviewed Jul 10, 2016
View reviewed changes

fhinkel force-pushed the i7592 branch from 219a62c to c9874e5 Compare July 10, 2016 10:41

fhinkel changed the title ~~Float V8 patch that fixes instanceof problem~~ Cherry-pick patch from V8 upstream that fixes instanceof problem Jul 10, 2016

fhinkel force-pushed the i7592 branch from c9874e5 to bf931f1 Compare July 10, 2016 10:46

fhinkel force-pushed the i7592 branch 2 times, most recently from 92345b7 to 6657bd3 Compare July 11, 2016 19:45

evanlucas mentioned this pull request Jul 21, 2016

v6.3.1 Release Proposal #7782

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evanlucas closed this Jul 21, 2016

fhinkel mentioned this pull request Jul 22, 2016

Possible bug: instanceof evaluates to true in Node 4 but not Node 6 #7592

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cjean-fr mentioned this pull request Jul 24, 2016

Upgrade node to 6.3.1 ScoopInstaller/Scoop#966

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MylesBorins added the dont-land-on-v4.x label Sep 9, 2016

fhinkel mentioned this pull request Oct 19, 2016

test: add regression test for instanceof #9178

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Cherry-pick patch from V8 upstream that fixes instanceof problem #7638

Cherry-pick patch from V8 upstream that fixes instanceof problem #7638

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Cherry-pick patch from V8 upstream that fixes instanceof problem #7638

Cherry-pick patch from V8 upstream that fixes instanceof problem #7638

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fhinkel commented Jul 9, 2016

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