Merge pull request #731 from yuriks/app-info

Kernel: Process class and ExHeader caps parsing

1 files changed, 90 insertions, 0 deletions

diff --git a/src/core/hle/kernel/process.h b/src/core/hle/kernel/process.h
new file mode 100644
index 000000000..88ed9a5a5
--- /dev/null
+++ b/src/core/hle/kernel/process.h
@@ -0,0 +1,90 @@
+// Copyright 2015 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <bitset>
+
+#include <boost/container/static_vector.hpp>
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/result.h"
+
+namespace Kernel {
+
+struct AddressMapping {
+    // Address and size must be page-aligned
+    VAddr address;
+    u32 size;
+    bool writable;
+    bool unk_flag;
+};
+
+enum class MemoryRegion : u16 {
+    APPLICATION = 1,
+    SYSTEM = 2,
+    BASE = 3,
+};
+
+union ProcessFlags {
+    u16 raw;
+
+    BitField< 0, 1, u16> allow_debug; ///< Allows other processes to attach to and debug this process.
+    BitField< 1, 1, u16> force_debug; ///< Allows this process to attach to processes even if they don't have allow_debug set.
+    BitField< 2, 1, u16> allow_nonalphanum;
+    BitField< 3, 1, u16> shared_page_writable; ///< Shared page is mapped with write permissions.
+    BitField< 4, 1, u16> privileged_priority; ///< Can use priority levels higher than 24.
+    BitField< 5, 1, u16> allow_main_args;
+    BitField< 6, 1, u16> shared_device_mem;
+    BitField< 7, 1, u16> runnable_on_sleep;
+    BitField< 8, 4, MemoryRegion> memory_region; ///< Default region for memory allocations for this process
+    BitField<12, 1, u16> loaded_high; ///< Application loaded high (not at 0x00100000).
+};
+
+class Process final : public Object {
+public:
+    static SharedPtr<Process> Create(std::string name, u64 program_id);
+
+    std::string GetTypeName() const override { return "Process"; }
+    std::string GetName() const override { return name; }
+
+    static const HandleType HANDLE_TYPE = HandleType::Process;
+    HandleType GetHandleType() const override { return HANDLE_TYPE; }
+
+    /// Name of the process
+    std::string name;
+    /// Title ID corresponding to the process
+    u64 program_id;
+
+    /// The process may only call SVCs which have the corresponding bit set.
+    std::bitset<0x80> svc_access_mask;
+    /// Maximum size of the handle table for the process.
+    unsigned int handle_table_size = 0x200;
+    /// Special memory ranges mapped into this processes address space. This is used to give
+    /// processes access to specific I/O regions and device memory.
+    boost::container::static_vector<AddressMapping, 8> address_mappings;
+    ProcessFlags flags;
+
+    /**
+     * Parses a list of kernel capability descriptors (as found in the ExHeader) and applies them
+     * to this process.
+     */
+    void ParseKernelCaps(const u32* kernel_caps, size_t len);
+
+    /**
+     * Applies address space changes and launches the process main thread.
+     */
+    void Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size);
+
+private:
+    Process();
+    ~Process() override;
+};
+
+extern SharedPtr<Process> g_current_process;
+
+}