justinmichaud
JSC contributor
Summary
Primarily JSC and its supporting infrastructure — WTF, bmalloc/libpas, and Platform — with a recurring Linux port thread running through it (time zone change notifications, RT thread removal, arm64 Linux test fixes, standalone libpas test cleanup). The dominant recent pattern is architecture pruning rather than feature or security work: removal of 32-bit JSValues, the ARMv7 JIT, 32-bit libpas, and big-endian/unaligned-load support, interleaved with performance changes in IRO and Intl.DateTimeFormat caching and drive-by safer-cpp cleanups. Where to look next: the fallout from collapsing value representation and the allocator to a single 64-bit configuration — code paths that were previously guarded by per-architecture ifdefs are where stale assumptions tend to survive the deletion.
Components
Security Fix History
Hardening Commits
- No hardening commits recorded
Recent Commits
- 2026-08-07 Fix TestWTF on arm64 linux
- 2026-08-06 [Linux] Remove RT threads
- 2026-08-02 Remove 32-bit JSValues.
- 2026-08-02 Unreviewed build fix
- 2026-08-01 [armv7] Remove ARMv7 JIT support
- 2026-08-01 Remove 32-bit libpas support
- 2026-08-01 Simple drive-by safer-cpp fixes
- 2026-08-01 Unreviewed build fix - timezone notifications
- 2026-08-01 Remove big endian support and support for platforms without unaligned loads/stores
- 2026-08-01 Fix regex setLastIndex on 32-bit
- 2026-07-31 Make IRO faster
- 2026-07-21 Cache Intl.DateTimeFormat
- 2026-07-10 [GLIB][JSC] REGRESSION(316118@main): JSTests/stress/arguments-elimination-multiple-inline-call-frames.js causes JSCore t
- 2026-07-07 [re-land] Support time zone change notifications on linux
- 2026-07-03 Update arch detection in run-jsc-stress-tests