Bug 165321

Summary: [JSC] Stop nulling out the CodeBlock spot inside the call frame inside WebAssembly
Product: WebKit Reporter: Saam Barati <saam>
Component: JavaScriptCoreAssignee: Yusuke Suzuki <ysuzuki>
Status: RESOLVED FIXED    
Severity: Normal CC: benjamin, fpizlo, ggaren, gskachkov, jfbastien, keith_miller, mark.lam, msaboff, oliver, ticaiolima, webkit-bug-importer, ysuzuki
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   

Description Saam Barati 2016-12-02 11:44:34 PST 
A lot of places interpreter non-zero CodeBlock bits to mean a valid CodeBlock. When I do wasm unwinding, I'll need to monitor the code that touches this to make sure it refers to the callee before the CodeBlock to test for a wasm frame. Until then, we'll store zero into that slot just to be safe.
Comment 1 Radar WebKit Bug Importer 2022-12-21 16:52:38 PST 
<rdar://problem/103618930>
Comment 2 Yusuke Suzuki 2022-12-21 16:54:53 PST 
Pull request: https://github.com/WebKit/WebKit/pull/7991
Comment 3 EWS 2022-12-21 20:54:14 PST 
Committed 258233@main (5f73a3c6800b): <https://commits.webkit.org/258233@main>

Reviewed commits have been landed. Closing PR #7991 and removing active labels.