zircon/tools/kazoo/test_kernel_cases.test.fidl

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

library zx;

// This file is copies of some syscalls that were interesting for the kernel
// header generator.

alias mutable_vector_void = vector<handle>;
alias optional_uint32 = uint32;
alias vector_handle_u32size = vector<byte>;
alias vector_paddr = vector<paddr>;
alias vector_void_u32size = vector<byte>;

[Transport="Syscall"]
protocol KernelCases {
    // Output vector to out_ptr, and vector<paddr> staying zx_paddr_t (not
    // turning into uint64).
    BtiPin(handle:BTI handle,
           uint32 options,
           handle:VMO vmo,
           uint64 offset,
           uint64 size) ->
        (status status, vector_paddr addrs, handle:PMT pmt);

    // Still have NORETURN markup for kernel (but only this one).
    [noreturn]
    ThreadExit();

    // inout_ptr.
    MtraceControl(handle:RESOURCE handle,
            uint32 kind,
            uint32 action,
            uint32 options,
            mutable_vector_void ptr) ->
        (status status);

    // vector of handles isn't turned into user_out_handle*, rather stays as
    // user_out_ptr<zx_handle_t>, because it's not just one.
    Read(handle:CHANNEL handle,
         uint32 options) ->
        (status status,
         vector_void_u32size bytes,
         vector_handle_u32size handles,
         optional_uint32 actual_bytes,
         optional_uint32 actual_handles);

    [testonly]
    compiled_out_in_non_test(int32 a, int32 b) -> (status status);
};