Fix corrupted snapshot serializaton on ia32.

BUG=v8/1985
TEST=none

Review URL: https://chromiumcodereview.appspot.com/9582006
Patch from Alexei Filippov <alexeif@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10910 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
mikhail.naganov@gmail.com 2012-03-02 15:31:04 +00:00
parent f2699b66cf
commit 8454eeb72d

View File

@ -3490,6 +3490,9 @@ void HeapSnapshotJSONSerializer::SerializeEdge(HeapGraphEdge* edge) {
|| edge->type() == HeapGraphEdge::kHidden
|| edge->type() == HeapGraphEdge::kWeak
? edge->index() : GetStringId(edge->name());
STATIC_CHECK(sizeof(int) == sizeof(edge->type())); // NOLINT
STATIC_CHECK(sizeof(int) == sizeof(edge_name_or_index)); // NOLINT
STATIC_CHECK(sizeof(int) == sizeof(GetNodeId(edge->to()))); // NOLINT
int result = OS::SNPrintF(buffer, ",%d,%d,%d",
edge->type(), edge_name_or_index, GetNodeId(edge->to()));
USE(result);
@ -3499,12 +3502,21 @@ void HeapSnapshotJSONSerializer::SerializeEdge(HeapGraphEdge* edge) {
void HeapSnapshotJSONSerializer::SerializeNode(HeapEntry* entry) {
// The buffer needs space for 7 ints, 7 commas, \n and \0
// The buffer needs space for 6 ints, 1 uint64_t, 7 commas, \n and \0
static const int kBufferSize =
MaxDecimalDigitsIn<sizeof(int)>::kSigned * 7 + 7 + 1 + 1; // NOLINT
6 * MaxDecimalDigitsIn<sizeof(int)>::kSigned // NOLINT
+ MaxDecimalDigitsIn<sizeof(uint64_t)>::kUnsigned // NOLINT
+ 7 + 1 + 1;
EmbeddedVector<char, kBufferSize> buffer;
Vector<HeapGraphEdge> children = entry->children();
int result = OS::SNPrintF(buffer, "\n,%d,%d,%d,%d,%d,%d,%d",
STATIC_CHECK(sizeof(int) == sizeof(entry->type())); // NOLINT
STATIC_CHECK(sizeof(int) == sizeof(GetStringId(entry->name()))); // NOLINT
STATIC_CHECK(sizeof(uint64_t) == sizeof(entry->id())); // NOLINT
STATIC_CHECK(sizeof(int) == sizeof(entry->self_size())); // NOLINT
STATIC_CHECK(sizeof(int) == sizeof(entry->retained_size())); // NOLINT
STATIC_CHECK(sizeof(int) == sizeof(GetNodeId(entry->dominator()))); // NOLINT
STATIC_CHECK(sizeof(int) == sizeof(children.length())); // NOLINT
int result = OS::SNPrintF(buffer, "\n,%d,%d,%llu,%d,%d,%d,%d",
entry->type(),
GetStringId(entry->name()),
entry->id(),