[roll] Roll fuchsia [starnix] Return the right-sized read_format_data for perf_event_open - Previously we assumed we would always return 40 bytes of read_format_data, which is for 5 fields. - However, it's possible the user never specified any `read_format` param so they should only get 8 bytes back (the value) - If they do specify a `read_format`(s), return those (order-dependent) Testing: ``` fx set core.x64 --release --with //src/starnix/tests/syscalls/cpp:tests --args=deny_warnings=false --include-clippy=false --args 'rust_incremental="incremental"' --rbe-mode=remote_cache_only fx build fx test -o fuchsia-pkg://fuchsia.com/starnix_syscalls_cpp_tests#meta/perf_event_open_test.cm // all these pass sudo ~/fuchsia/out/default/linux_x64/perf_event_open_test_bin // 3 fail - see below ``` Failing host tests will be investigated in 413134743 and 413146816. They happen because `value` and `time_running` are 0 for some reason. Original-Bug: 409095706 Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1249206 Original-Revision: 4a6f43d237e8a1af40e4b96d0043fab1924a72c9 GitOrigin-RevId: 296483a1c76d95c902485a98d8e79953ef16c5ec Change-Id: Ia64e06b953507f6856f50a70d62ce89fc2a64939
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