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Fallback blackholing logic when updateThunk() throws (#581)

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Shao Cheng 2020-04-15 13:12:03 +02:00 committed by GitHub
parent ddb3794972
commit 15be80f35e
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1 changed files with 15 additions and 6 deletions
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21
asterius/rts/rts.exception.mjs
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@ -60,12 +60,21 @@ export class ExceptionHelper {
const p1 = Number(
this.memory.i64Load(p + rtsConstants.offset_StgUpdateFrame_updatee)
);
this.exports.updateThunk(
this.symbolTable.MainCapability,
tso,
p1,
raise_closure
);
try {
this.exports.updateThunk(
this.symbolTable.MainCapability,
tso,
p1,
raise_closure
);
} catch (err) {
console.error(`updateThunk failed with ${err}`);
this.memory.i64Store(p1, this.symbolTable.stg_BLACKHOLE_info);
this.memory.i64Store(
p1 + rtsConstants.offset_StgInd_indirectee,
raise_closure
);
}
const size = Number(raw_layout & BigInt(0x3f));
p += (1 + size) << 3;
break;