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MaxsTechReview e9e0186e66 perf(fex): answer raw stat, readlink and statx syscalls through the proot fast path (#1757)
* perf(fex): answer raw stat, readlink and statx syscalls through the proot fast path

FEX issues newfstatat, readlinkat and statx as raw syscall() calls, which skipped the libc wrappers the fast path hooks and fell through to ptrace. Route them through libblfastpath the same way raw openat already is, and keep the fast path's own /proc/self/exe lookup off the hooked syscall().

* test(fex): keep the raw lookup test passing on kernels without statx
2026-10-29 07:25:39 -04:00
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2026-10-13 21:27:42 -04:00