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authorAlon Zakai <alonzakai@gmail.com>2016-01-27 17:01:36 -0800
committerAlon Zakai <alonzakai@gmail.com>2016-01-27 17:01:36 -0800
commit002080c03eca29fb26901b5953e29cb1dac34c9f (patch)
treed10caff03e35d7136fdc9db6837f45eace424dfb
parentd378fd9a098572d1517f8ac9ce8909fd38f11122 (diff)
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ignore zero-size segments in binary format
-rw-r--r--src/wasm-binary.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/wasm-binary.h b/src/wasm-binary.h
index 10bd40ece..f86a19aa8 100644
--- a/src/wasm-binary.h
+++ b/src/wasm-binary.h
@@ -509,8 +509,13 @@ public:
void writeDataSegments() {
if (wasm->memory.segments.size() == 0) return;
- o << int8_t(BinaryConsts::DataSegments) << LEB128(wasm->memory.segments.size());
+ uint32_t num = 0;
for (auto& segment : wasm->memory.segments) {
+ if (segment.size > 0) num++;
+ }
+ o << int8_t(BinaryConsts::DataSegments) << LEB128(num);
+ for (auto& segment : wasm->memory.segments) {
+ if (segment.size == 0) continue;
o << int32_t(segment.offset);
emitBuffer(segment.data, segment.size);
o << int32_t(segment.size);