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deps: cherry-pick baba152 from V8 upstream
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Original commit message:

  fix stepping out of across throwing.

  [email protected]
  BUG=v8:5559

  Review-Url: https://codereview.chromium.org/2445233004
  Cr-Commit-Position: refs/heads/master@{#40549}

PR-URL: #10689
Fixes: #9175
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Ali Ijaz Sheikh <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>
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targos authored and MylesBorins committed Jan 31, 2017
1 parent fdc373d commit f77fcf8
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Showing 3 changed files with 40 additions and 2 deletions.
2 changes: 1 addition & 1 deletion deps/v8/include/v8-version.h
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@
#define V8_MAJOR_VERSION 5
#define V8_MINOR_VERSION 1
#define V8_BUILD_NUMBER 281
#define V8_PATCH_LEVEL 90
#define V8_PATCH_LEVEL 91

// Use 1 for candidates and 0 otherwise.
// (Boolean macro values are not supported by all preprocessors.)
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2 changes: 1 addition & 1 deletion deps/v8/src/debug/debug.cc
Original file line number Diff line number Diff line change
Expand Up @@ -962,7 +962,7 @@ void Debug::PrepareStepOnThrow() {
it.Advance();
}

if (last_step_action() == StepNext) {
if (last_step_action() == StepNext || last_step_action() == StepOut) {
while (!it.done()) {
Address current_fp = it.frame()->UnpaddedFP();
if (current_fp >= thread_local_.target_fp_) break;
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38 changes: 38 additions & 0 deletions deps/v8/test/mjsunit/regress/regress-5559.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,38 @@
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --expose-debug-as debug

Debug = debug.Debug

var exception = null;
var break_count = 0;

function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Break) return;
try {
print(event_data.sourceLineText());
assertTrue(
event_data.sourceLineText().indexOf(`Break ${break_count++}.`) > 0);
exec_state.prepareStep(Debug.StepAction.StepOut);
} catch (e) {
exception = e;
}
};

function thrower() {
try {
debugger; // Break 0.
throw 'error';
} catch (err) {
}
}


Debug.setListener(listener);
thrower();
Debug.setListener(null); // Break 1.

assertNull(exception);
assertEquals(2, break_count);

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