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deps: V8: cherry-pick d2ccc59

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Original commit message:

    [snapshot] print reference stack for JSFunctions in the isolate snapshot

    This helps debugging incorrect usage of the SnapshotCreator API in
    debug mode.

    Change-Id: Ibd9db76a5f460cdf7ea6d14e865592ebaf69aeef
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1648240
    Reviewed-by: Yang Guo <yangguo@chromium.org>
    Commit-Queue: Yang Guo <yangguo@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#62095}

Refs: d2ccc599c7

PR-URL: https://github.com/nodejs/node/pull/28016
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
This commit is contained in:
Michaël Zasso 2019-07-20 13:38:32 +02:00
parent 21745b50d5
commit 3b7c95220b
No known key found for this signature in database
GPG Key ID: 770F7A9A5AE15600
4 changed files with 17 additions and 5 deletions
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2
common.gypi
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@ -39,7 +39,7 @@
# Reset this number to 0 on major V8 upgrades.
# Increment by one for each non-official patch applied to deps/v8.
'v8_embedder_string': '-node.12',
'v8_embedder_string': '-node.13',
##### V8 defaults for Node.js #####

8
deps/v8/src/snapshot/serializer.cc vendored
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@ -115,10 +115,12 @@ void Serializer::SerializeRootObject(Object object) {
}
#ifdef DEBUG
void Serializer::PrintStack() {
void Serializer::PrintStack() { PrintStack(std::cout); }
void Serializer::PrintStack(std::ostream& out) {
for (const auto o : stack_) {
o.Print();
PrintF("\n");
o.Print(out);
out << "\n";
}
}
#endif // DEBUG

1
deps/v8/src/snapshot/serializer.h vendored
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@ -250,6 +250,7 @@ class Serializer : public SerializerDeserializer {
void PushStack(HeapObject o) { stack_.push_back(o); }
void PopStack() { stack_.pop_back(); }
void PrintStack();
void PrintStack(std::ostream&);
#endif // DEBUG
SerializerReferenceMap* reference_map() { return &reference_map_; }

11
deps/v8/src/snapshot/startup-serializer.cc vendored
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@ -71,7 +71,16 @@ bool IsUnexpectedCodeObject(Isolate* isolate, HeapObject obj) {
#endif // DEBUG
void StartupSerializer::SerializeObject(HeapObject obj) {
DCHECK(!obj.IsJSFunction());
#ifdef DEBUG
if (obj.IsJSFunction()) {
v8::base::OS::PrintError("Reference stack:\n");
PrintStack(std::cerr);
obj.Print(std::cerr);
FATAL(
"JSFunction should be added through the context snapshot instead of "
"the isolate snapshot");
}
#endif // DEBUG
DCHECK(!IsUnexpectedCodeObject(isolate(), obj));
if (SerializeHotObject(obj)) return;