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Kernel+ProfileViewer: Display additional filesystem events

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This commit is contained in:
Jakub Berkop 2023-08-25 23:47:42 +02:00 • committed by Andrew Kaster
parent c184a0786f
commit 54e79aa1d9
16 changed files with 655 additions and 135 deletions
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70
Kernel/Tasks/PerformanceEventBuffer.cpp
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@ -24,10 +24,10 @@ PerformanceEventBuffer::PerformanceEventBuffer(NonnullOwnPtr<KBuffer> buffer)
{
}
NEVER_INLINE ErrorOr<void> PerformanceEventBuffer::append(int type, FlatPtr arg1, FlatPtr arg2, StringView arg3, Thread* current_thread, FlatPtr arg4, u64 arg5, ErrorOr<FlatPtr> const& arg6)
NEVER_INLINE ErrorOr<void> PerformanceEventBuffer::append(int type, FlatPtr arg1, FlatPtr arg2, StringView arg3, Thread* current_thread, FilesystemEvent filesystem_event)
{
FlatPtr base_pointer = (FlatPtr)__builtin_frame_address(0);
return append_with_ip_and_bp(current_thread->pid(), current_thread->tid(), 0, base_pointer, type, 0, arg1, arg2, arg3, arg4, arg5, arg6);
return append_with_ip_and_bp(current_thread->pid(), current_thread->tid(), 0, base_pointer, type, 0, arg1, arg2, arg3, filesystem_event);
}
static Vector<FlatPtr, PerformanceEvent::max_stack_frame_count> raw_backtrace(FlatPtr bp, FlatPtr ip)
@ -68,13 +68,13 @@ static Vector<FlatPtr, PerformanceEvent::max_stack_frame_count> raw_backtrace(Fl
}
ErrorOr<void> PerformanceEventBuffer::append_with_ip_and_bp(ProcessID pid, ThreadID tid, RegisterState const& regs,
int type, u32 lost_samples, FlatPtr arg1, FlatPtr arg2, StringView arg3, FlatPtr arg4, u64 arg5, ErrorOr<FlatPtr> const& arg6)
int type, u32 lost_samples, FlatPtr arg1, FlatPtr arg2, StringView arg3, FilesystemEvent filesystem_event)
{
return append_with_ip_and_bp(pid, tid, regs.ip(), regs.bp(), type, lost_samples, arg1, arg2, arg3, arg4, arg5, arg6);
return append_with_ip_and_bp(pid, tid, regs.ip(), regs.bp(), type, lost_samples, arg1, arg2, arg3, filesystem_event);
}
ErrorOr<void> PerformanceEventBuffer::append_with_ip_and_bp(ProcessID pid, ThreadID tid,
FlatPtr ip, FlatPtr bp, int type, u32 lost_samples, FlatPtr arg1, FlatPtr arg2, StringView arg3, FlatPtr arg4, u64 arg5, ErrorOr<FlatPtr> const& arg6)
FlatPtr ip, FlatPtr bp, int type, u32 lost_samples, FlatPtr arg1, FlatPtr arg2, StringView arg3, FilesystemEvent filesystem_event)
{
if (count() >= capacity())
return ENOBUFS;
@ -160,12 +160,8 @@ ErrorOr<void> PerformanceEventBuffer::append_with_ip_and_bp(ProcessID pid, Threa
event.data.signpost.arg1 = arg1;
event.data.signpost.arg2 = arg2;
break;
case PERF_EVENT_READ:
event.data.read.fd = arg1;
event.data.read.size = arg2;
event.data.read.filename_index = arg4;
event.data.read.start_timestamp = arg5;
event.data.read.success = !arg6.is_error();
case PERF_EVENT_FILESYSTEM:
event.data.filesystem = filesystem_event;
break;
default:
return EINVAL;
@ -295,13 +291,51 @@ ErrorOr<void> PerformanceEventBuffer::to_json_impl(Serializer& object) const
TRY(event_object.add("arg1"sv, event.data.signpost.arg1));
TRY(event_object.add("arg2"sv, event.data.signpost.arg2));
break;
case PERF_EVENT_READ:
TRY(event_object.add("type"sv, "read"));
TRY(event_object.add("fd"sv, event.data.read.fd));
TRY(event_object.add("size"sv, event.data.read.size));
TRY(event_object.add("filename_index"sv, event.data.read.filename_index));
TRY(event_object.add("start_timestamp"sv, event.data.read.start_timestamp));
TRY(event_object.add("success"sv, event.data.read.success));
case PERF_EVENT_FILESYSTEM:
TRY(event_object.add("type"sv, "filesystem"sv));
TRY(event_object.add("durationNs"sv, event.data.filesystem.durationNs));
switch (event.data.filesystem.type) {
case FilesystemEventType::Open: {
auto const& open = event.data.filesystem.data.open;
TRY(event_object.add("fs_event_type"sv, "open"sv));
TRY(event_object.add("dirfd"sv, open.dirfd));
TRY(event_object.add("filename_index"sv, open.filename_index));
TRY(event_object.add("options"sv, open.options));
TRY(event_object.add("mode"sv, open.mode));
break;
}
case FilesystemEventType::Close: {
auto const& close = event.data.filesystem.data.close;
TRY(event_object.add("fs_event_type"sv, "close"sv));
TRY(event_object.add("fd"sv, close.fd));
TRY(event_object.add("filename_index"sv, close.filename_index));
break;
}
case FilesystemEventType::Readv: {
auto const& readv = event.data.filesystem.data.readv;
TRY(event_object.add("fs_event_type"sv, "readv"sv));
TRY(event_object.add("fd"sv, readv.fd));
TRY(event_object.add("filename_index"sv, readv.filename_index));
break;
}
case FilesystemEventType::Read: {
auto const& read = event.data.filesystem.data.read;
TRY(event_object.add("fs_event_type"sv, "read"sv));
TRY(event_object.add("fd"sv, read.fd));
TRY(event_object.add("filename_index"sv, read.filename_index));
break;
}
case FilesystemEventType::Pread: {
auto const& pread = event.data.filesystem.data.pread;
TRY(event_object.add("fs_event_type"sv, "pread"sv));
TRY(event_object.add("fd"sv, pread.fd));
TRY(event_object.add("filename_index"sv, pread.filename_index));
TRY(event_object.add("buffer_ptr"sv, pread.buffer_ptr));
TRY(event_object.add("size"sv, pread.size));
TRY(event_object.add("offset"sv, pread.offset));
break;
}
}
break;
}
TRY(event_object.add("pid"sv, event.pid));