Merge pull request #731 from yuriks/app-info

Kernel: Process class and ExHeader caps parsing

19 files changed, 335 insertions, 103 deletions

diff --git a/src/common/common_funcs.h b/src/common/common_funcs.h
index 91b74c6b..fde0f3a5 100644
--- a/src/common/common_funcs.h
+++ b/src/common/common_funcs.h
@@ -15,6 +15,8 @@
 #define b32(x)  (b16(x) | (b16(x) >>16) )
 #define ROUND_UP_POW2(x)    (b32(x - 1) + 1)
 
+#define BIT(x) (1U << (x))
+
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
 
 /// Textually concatenates two tokens. The double-expansion is required by the C preprocessor.
diff --git a/src/common/string_util.cpp b/src/common/string_util.cpp
index 3a6e51da..7dc0ba7b 100644
--- a/src/common/string_util.cpp
+++ b/src/common/string_util.cpp
@@ -477,4 +477,12 @@ std::string SHIFTJISToUTF8(const std::string& input)
 
 #endif
 
+std::string StringFromFixedZeroTerminatedBuffer(const char * buffer, size_t max_len) {
+    size_t len = 0;
+    while (len < max_len && buffer[len] != '\0')
+        ++len;
+
+    return std::string(buffer, len);
+}
+
 }
diff --git a/src/common/string_util.h b/src/common/string_util.h
index 356da5b6..fdc41049 100644
--- a/src/common/string_util.h
+++ b/src/common/string_util.h
@@ -128,4 +128,10 @@ bool ComparePartialString(InIt begin, InIt end, const char* other) {
     return (begin == end) == (*other == '\0');
 }
 
+/**
+ * Creates a std::string from a fixed-size NUL-terminated char buffer. If the buffer isn't
+ * NUL-terminated then the string ends at max_len characters.
+ */
+std::string StringFromFixedZeroTerminatedBuffer(const char* buffer, size_t max_len);
+
 }
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index aaa6d87f..ebedcb71 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -12,6 +12,8 @@ set(SRCS
             arm/skyeye_common/vfp/vfpdouble.cpp
             arm/skyeye_common/vfp/vfpinstr.cpp
             arm/skyeye_common/vfp/vfpsingle.cpp
+            core.cpp
+            core_timing.cpp
             file_sys/archive_backend.cpp
             file_sys/archive_extsavedata.cpp
             file_sys/archive_romfs.cpp
@@ -21,15 +23,18 @@ set(SRCS
             file_sys/archive_systemsavedata.cpp
             file_sys/disk_archive.cpp
             file_sys/ivfc_archive.cpp
+            hle/config_mem.cpp
+            hle/hle.cpp
             hle/kernel/address_arbiter.cpp
             hle/kernel/event.cpp
             hle/kernel/kernel.cpp
             hle/kernel/mutex.cpp
+            hle/kernel/process.cpp
             hle/kernel/semaphore.cpp
             hle/kernel/session.cpp
             hle/kernel/shared_memory.cpp
-            hle/kernel/timer.cpp
             hle/kernel/thread.cpp
+            hle/kernel/timer.cpp
             hle/service/ac_u.cpp
             hle/service/act_u.cpp
             hle/service/am_app.cpp
@@ -56,10 +61,10 @@ set(SRCS
             hle/service/fs/archive.cpp
             hle/service/fs/fs_user.cpp
             hle/service/gsp_gpu.cpp
+            hle/service/gsp_lcd.cpp
             hle/service/hid/hid.cpp
-            hle/service/hid/hid_user.cpp
             hle/service/hid/hid_spvr.cpp
-            hle/service/gsp_lcd.cpp
+            hle/service/hid/hid_user.cpp
             hle/service/http_c.cpp
             hle/service/ir/ir.cpp
             hle/service/ir/ir_rst.cpp
@@ -77,26 +82,22 @@ set(SRCS
             hle/service/pm_app.cpp
             hle/service/ptm/ptm.cpp
             hle/service/ptm/ptm_play.cpp
-            hle/service/ptm/ptm_u.cpp
             hle/service/ptm/ptm_sysm.cpp
+            hle/service/ptm/ptm_u.cpp
             hle/service/service.cpp
             hle/service/soc_u.cpp
             hle/service/srv.cpp
             hle/service/ssl_c.cpp
             hle/service/y2r_u.cpp
-            hle/config_mem.cpp
-            hle/hle.cpp
             hle/shared_page.cpp
             hle/svc.cpp
             hw/gpu.cpp
             hw/hw.cpp
             hw/lcd.cpp
+            loader/3dsx.cpp
             loader/elf.cpp
             loader/loader.cpp
             loader/ncch.cpp
-            loader/3dsx.cpp
-            core.cpp
-            core_timing.cpp
             mem_map.cpp
             mem_map_funcs.cpp
             settings.cpp
@@ -104,6 +105,7 @@ set(SRCS
             )
 
 set(HEADERS
+            arm/arm_interface.h
             arm/disassembler/arm_disasm.h
             arm/disassembler/load_symbol_map.h
             arm/dyncom/arm_dyncom.h
@@ -118,7 +120,8 @@ set(HEADERS
             arm/skyeye_common/vfp/asm_vfp.h
             arm/skyeye_common/vfp/vfp.h
             arm/skyeye_common/vfp/vfp_helper.h
-            arm/arm_interface.h
+            core.h
+            core_timing.h
             file_sys/archive_backend.h
             file_sys/archive_extsavedata.h
             file_sys/archive_romfs.h
@@ -126,19 +129,24 @@ set(HEADERS
             file_sys/archive_savedatacheck.h
             file_sys/archive_sdmc.h
             file_sys/archive_systemsavedata.h
+            file_sys/directory_backend.h
             file_sys/disk_archive.h
             file_sys/file_backend.h
             file_sys/ivfc_archive.h
-            file_sys/directory_backend.h
+            hle/config_mem.h
+            hle/function_wrappers.h
+            hle/hle.h
             hle/kernel/address_arbiter.h
             hle/kernel/event.h
             hle/kernel/kernel.h
             hle/kernel/mutex.h
+            hle/kernel/process.h
             hle/kernel/semaphore.h
             hle/kernel/session.h
             hle/kernel/shared_memory.h
-            hle/kernel/timer.h
             hle/kernel/thread.h
+            hle/kernel/timer.h
+            hle/result.h
             hle/service/ac_u.h
             hle/service/act_u.h
             hle/service/am_app.h
@@ -165,10 +173,10 @@ set(HEADERS
             hle/service/fs/archive.h
             hle/service/fs/fs_user.h
             hle/service/gsp_gpu.h
+            hle/service/gsp_lcd.h
             hle/service/hid/hid.h
             hle/service/hid/hid_spvr.h
             hle/service/hid/hid_user.h
-            hle/service/gsp_lcd.h
             hle/service/http_c.h
             hle/service/ir/ir.h
             hle/service/ir/ir_rst.h
@@ -186,28 +194,22 @@ set(HEADERS
             hle/service/pm_app.h
             hle/service/ptm/ptm.h
             hle/service/ptm/ptm_play.h
-            hle/service/ptm/ptm_u.h
             hle/service/ptm/ptm_sysm.h
+            hle/service/ptm/ptm_u.h
             hle/service/service.h
             hle/service/soc_u.h
             hle/service/srv.h
             hle/service/ssl_c.h
             hle/service/y2r_u.h
-            hle/config_mem.h
-            hle/result.h
-            hle/function_wrappers.h
-            hle/hle.h
             hle/shared_page.h
             hle/svc.h
             hw/gpu.h
             hw/hw.h
             hw/lcd.h
+            loader/3dsx.h
             loader/elf.h
             loader/loader.h
             loader/ncch.h
-            loader/3dsx.h
-            core.h
-            core_timing.h
             mem_map.h
             settings.h
             system.h
diff --git a/src/core/file_sys/archive_savedata.cpp b/src/core/file_sys/archive_savedata.cpp
index 12624fa3..8dff5196 100644
--- a/src/core/file_sys/archive_savedata.cpp
+++ b/src/core/file_sys/archive_savedata.cpp
@@ -11,6 +11,7 @@
 
 #include "core/file_sys/archive_savedata.h"
 #include "core/file_sys/disk_archive.h"
+#include "core/hle/kernel/process.h"
 #include "core/hle/service/fs/archive.h"
 #include "core/settings.h"
 
@@ -36,7 +37,7 @@ ArchiveFactory_SaveData::ArchiveFactory_SaveData(const std::string& sdmc_directo
 }
 
 ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SaveData::Open(const Path& path) {
-    std::string concrete_mount_point = GetSaveDataPath(mount_point, Kernel::g_program_id);
+    std::string concrete_mount_point = GetSaveDataPath(mount_point, Kernel::g_current_process->program_id);
     if (!FileUtil::Exists(concrete_mount_point)) {
         // When a SaveData archive is created for the first time, it is not yet formatted
         // and the save file/directory structure expected by the game has not yet been initialized.
@@ -51,7 +52,7 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SaveData::Open(const P
 }
 
 ResultCode ArchiveFactory_SaveData::Format(const Path& path) {
-    std::string concrete_mount_point = GetSaveDataPath(mount_point, Kernel::g_program_id);
+    std::string concrete_mount_point = GetSaveDataPath(mount_point, Kernel::g_current_process->program_id);
     FileUtil::DeleteDirRecursively(concrete_mount_point);
     FileUtil::CreateFullPath(concrete_mount_point);
     return RESULT_SUCCESS;
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index 533fe65f..a3715e55 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -10,15 +10,14 @@
 #include "core/arm/arm_interface.h"
 #include "core/core.h"
 #include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/process.h"
 #include "core/hle/kernel/thread.h"
 #include "core/hle/kernel/timer.h"
 
 namespace Kernel {
 
 unsigned int Object::next_object_id;
-SharedPtr<Thread> g_main_thread;
 HandleTable g_handle_table;
-u64 g_program_id;
 
 void WaitObject::AddWaitingThread(SharedPtr<Thread> thread) {
     auto itr = std::find(waiting_threads.begin(), waiting_threads.end(), thread);
@@ -140,8 +139,6 @@ void Init() {
     Kernel::TimersInit();
 
     Object::next_object_id = 0;
-    g_program_id = 0;
-    g_main_thread = nullptr;
 }
 
 /// Shutdown the kernel
@@ -149,18 +146,7 @@ void Shutdown() {
     Kernel::ThreadingShutdown();
     Kernel::TimersShutdown();
     g_handle_table.Clear(); // Free all kernel objects
-}
-
-/**
- * Loads executable stored at specified address
- * @entry_point Entry point in memory of loaded executable
- * @return True on success, otherwise false
- */
-bool LoadExec(u32 entry_point) {
-    // 0x30 is the typical main thread priority I've seen used so far
-    g_main_thread = Kernel::SetupMainThread(Kernel::DEFAULT_STACK_SIZE, entry_point, THREADPRIO_DEFAULT);
-
-    return true;
+    g_current_process = nullptr;
 }
 
 } // namespace
diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h
index a7bc6b71..7c106d37 100644
--- a/src/core/hle/kernel/kernel.h
+++ b/src/core/hle/kernel/kernel.h
@@ -7,6 +7,7 @@
 #include <boost/intrusive_ptr.hpp>
 
 #include <array>
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -15,6 +16,8 @@
 #include "core/hle/hle.h"
 #include "core/hle/result.h"
 
+struct ApplicationInfo;
+
 namespace Kernel {
 
 class Thread;
@@ -270,23 +273,10 @@ private:
 
 extern HandleTable g_handle_table;
 
-/// The ID code of the currently running game
-/// TODO(Subv): This variable should not be here, 
-/// we need a way to store information about the currently loaded application 
-/// for later query during runtime, maybe using the LDR service?
-extern u64 g_program_id;
-
 /// Initialize the kernel
 void Init();
 
 /// Shutdown the kernel
 void Shutdown();
 
-/**
- * Loads executable stored at specified address
- * @entry_point Entry point in memory of loaded executable
- * @return True on success, otherwise false
- */
-bool LoadExec(u32 entry_point);
-
 } // namespace
diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
new file mode 100644
index 00000000..a444e22e
--- /dev/null
+++ b/src/core/hle/kernel/process.cpp
@@ -0,0 +1,96 @@
+// Copyright 2015 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_funcs.h"
+#include "common/logging/log.h"
+
+#include "core/hle/kernel/process.h"
+#include "core/hle/kernel/thread.h"
+#include "core/mem_map.h"
+
+namespace Kernel {
+
+SharedPtr<Process> Process::Create(std::string name, u64 program_id) {
+    SharedPtr<Process> process(new Process);
+
+    process->name = std::move(name);
+    process->program_id = program_id;
+
+    process->flags.raw = 0;
+    process->flags.memory_region = MemoryRegion::APPLICATION;
+
+    return process;
+}
+
+void Process::ParseKernelCaps(const u32* kernel_caps, size_t len) {
+    for (int i = 0; i < len; ++i) {
+        u32 descriptor = kernel_caps[i];
+        u32 type = descriptor >> 20;
+
+        if (descriptor == 0xFFFFFFFF) {
+            // Unused descriptor entry
+            continue;
+        } else if ((type & 0xF00) == 0xE00) { // 0x0FFF
+            // Allowed interrupts list
+            LOG_WARNING(Loader, "ExHeader allowed interrupts list ignored");
+        } else if ((type & 0xF80) == 0xF00) { // 0x07FF
+            // Allowed syscalls mask
+            unsigned int index = ((descriptor >> 24) & 7) * 24;
+            u32 bits = descriptor & 0xFFFFFF;
+
+            while (bits && index < svc_access_mask.size()) {
+                svc_access_mask.set(index, bits & 1);
+                ++index; bits >>= 1;
+            }
+        } else if ((type & 0xFF0) == 0xFE0) { // 0x00FF
+            // Handle table size
+            handle_table_size = descriptor & 0x3FF;
+        } else if ((type & 0xFF8) == 0xFF0) { // 0x007F
+            // Misc. flags
+            flags.raw = descriptor & 0xFFFF;
+        } else if ((type & 0xFFE) == 0xFF8) { // 0x001F
+            // Mapped memory range
+            if (i+1 >= len || ((kernel_caps[i+1] >> 20) & 0xFFE) != 0xFF8) {
+                LOG_WARNING(Loader, "Incomplete exheader memory range descriptor ignored.");
+                continue;
+            }
+            u32 end_desc = kernel_caps[i+1];
+            ++i; // Skip over the second descriptor on the next iteration
+
+            AddressMapping mapping;
+            mapping.address = descriptor << 12;
+            mapping.size = (end_desc << 12) - mapping.address;
+            mapping.writable = descriptor & BIT(20);
+            mapping.unk_flag = end_desc & BIT(20);
+
+            address_mappings.push_back(mapping);
+        } else if ((type & 0xFFF) == 0xFFE) { // 0x000F
+            // Mapped memory page
+            AddressMapping mapping;
+            mapping.address = descriptor << 12;
+            mapping.size = Memory::PAGE_SIZE;
+            mapping.writable = true; // TODO: Not sure if correct
+            mapping.unk_flag = false;
+        } else if ((type & 0xFE0) == 0xFC0) { // 0x01FF
+            // Kernel version
+            int minor = descriptor & 0xFF;
+            int major = (descriptor >> 8) & 0xFF;
+            LOG_INFO(Loader, "ExHeader kernel version ignored: %d.%d", major, minor);
+        } else {
+            LOG_ERROR(Loader, "Unhandled kernel caps descriptor: 0x%08X", descriptor);
+        }
+    }
+}
+
+void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) {
+    Kernel::SetupMainThread(stack_size, entry_point, main_thread_priority);
+}
+
+Kernel::Process::Process() {}
+Kernel::Process::~Process() {}
+
+SharedPtr<Process> g_current_process;
+
+}
diff --git a/src/core/hle/kernel/process.h b/src/core/hle/kernel/process.h
new file mode 100644
index 00000000..88ed9a5a
--- /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;
+
+}
diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h
index 233bcbdb..9958b16e 100644
--- a/src/core/hle/kernel/thread.h
+++ b/src/core/hle/kernel/thread.h
@@ -171,8 +171,6 @@ private:
     Handle callback_handle;
 };
 
-extern SharedPtr<Thread> g_main_thread;
-
 /**
  * Sets up the primary application thread
  * @param stack_size The size of the thread's stack
diff --git a/src/core/loader/3dsx.cpp b/src/core/loader/3dsx.cpp
index 5d806c5d..15527c5a 100644
--- a/src/core/loader/3dsx.cpp
+++ b/src/core/loader/3dsx.cpp
@@ -8,9 +8,10 @@
 #include "common/logging/log.h"
 
 #include "core/file_sys/archive_romfs.h"
+#include "core/hle/kernel/process.h"
+#include "core/hle/service/fs/archive.h"
 #include "core/loader/elf.h"
 #include "core/loader/ncch.h"
-#include "core/hle/service/fs/archive.h"
 #include "core/mem_map.h"
 
 #include "3dsx.h"
@@ -229,8 +230,13 @@ ResultStatus AppLoader_THREEDSX::Load() {
     if (!file->IsOpen())
         return ResultStatus::Error;
 
-    Load3DSXFile(*file, 0x00100000);
-    Kernel::LoadExec(0x00100000);
+    Kernel::g_current_process = Kernel::Process::Create(filename, 0);
+    Kernel::g_current_process->svc_access_mask.set();
+    Kernel::g_current_process->address_mappings = default_address_mappings;
+
+    Load3DSXFile(*file, Memory::EXEFS_CODE_VADDR);
+
+    Kernel::g_current_process->Run(Memory::EXEFS_CODE_VADDR, 48, Kernel::DEFAULT_STACK_SIZE);
 
     is_loaded = true;
     return ResultStatus::Success;
diff --git a/src/core/loader/3dsx.h b/src/core/loader/3dsx.h
index a1166740..096b3ec2 100644
--- a/src/core/loader/3dsx.h
+++ b/src/core/loader/3dsx.h
@@ -4,6 +4,8 @@
 
 #pragma once
 
+#include <string>
+
 #include "common/common_types.h"
 #include "core/loader/loader.h"
 
@@ -15,7 +17,8 @@ namespace Loader {
 /// Loads an 3DSX file
 class AppLoader_THREEDSX final : public AppLoader {
 public:
-    AppLoader_THREEDSX(std::unique_ptr<FileUtil::IOFile>&& file) : AppLoader(std::move(file)) { }
+    AppLoader_THREEDSX(std::unique_ptr<FileUtil::IOFile>&& file, std::string filename)
+        : AppLoader(std::move(file)), filename(std::move(filename)) {}
 
     /**
      * Returns the type of the file
@@ -29,6 +32,9 @@ public:
      * @return ResultStatus result of function
      */
     ResultStatus Load() override;
+
+private:
+    std::string filename;
 };
 
 } // namespace Loader
diff --git a/src/core/loader/elf.cpp b/src/core/loader/elf.cpp
index 467e9192..f86a98b8 100644
--- a/src/core/loader/elf.cpp
+++ b/src/core/loader/elf.cpp
@@ -10,9 +10,9 @@
 #include "common/logging/log.h"
 #include "common/symbols.h"
 
-#include "core/mem_map.h"
-#include "core/loader/elf.h"
 #include "core/hle/kernel/kernel.h"
+#include "core/loader/elf.h"
+#include "core/mem_map.h"
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // ELF Header Constants
@@ -350,9 +350,15 @@ ResultStatus AppLoader_ELF::Load() {
     if (file->ReadBytes(&buffer[0], size) != size)
         return ResultStatus::Error;
 
+    Kernel::g_current_process = Kernel::Process::Create(filename, 0);
+    Kernel::g_current_process->svc_access_mask.set();
+    Kernel::g_current_process->address_mappings = default_address_mappings;
+
     ElfReader elf_reader(&buffer[0]);
-    elf_reader.LoadInto(0x00100000);
-    Kernel::LoadExec(elf_reader.GetEntryPoint());
+    elf_reader.LoadInto(Memory::EXEFS_CODE_VADDR);
+    // TODO: Fill application title
+
+    Kernel::g_current_process->Run(elf_reader.GetEntryPoint(), 48, Kernel::DEFAULT_STACK_SIZE);
 
     is_loaded = true;
     return ResultStatus::Success;
diff --git a/src/core/loader/elf.h b/src/core/loader/elf.h
index b6e6651f..32841606 100644
--- a/src/core/loader/elf.h
+++ b/src/core/loader/elf.h
@@ -4,6 +4,8 @@
 
 #pragma once
 
+#include <string>
+
 #include "common/common_types.h"
 #include "core/loader/loader.h"
 
@@ -15,7 +17,8 @@ namespace Loader {
 /// Loads an ELF/AXF file
 class AppLoader_ELF final : public AppLoader {
 public:
-    AppLoader_ELF(std::unique_ptr<FileUtil::IOFile>&& file) : AppLoader(std::move(file)) { }
+    AppLoader_ELF(std::unique_ptr<FileUtil::IOFile>&& file, std::string filename)
+        : AppLoader(std::move(file)), filename(std::move(filename)) { }
 
     /**
      * Returns the type of the file
@@ -29,6 +32,9 @@ public:
      * @return ResultStatus result of function
      */
     ResultStatus Load() override;
+
+private:
+    std::string filename;
 };
 
 } // namespace Loader
diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp
index de0ab540..505e2d28 100644
--- a/src/core/loader/loader.cpp
+++ b/src/core/loader/loader.cpp
@@ -8,16 +8,23 @@
 #include "common/make_unique.h"
 
 #include "core/file_sys/archive_romfs.h"
+#include "core/hle/kernel/process.h"
+#include "core/hle/service/fs/archive.h"
 #include "core/loader/3dsx.h"
 #include "core/loader/elf.h"
 #include "core/loader/ncch.h"
-#include "core/hle/service/fs/archive.h"
 #include "core/mem_map.h"
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
 namespace Loader {
 
+const std::initializer_list<Kernel::AddressMapping> default_address_mappings = {
+    { 0x1FF50000,   0x8000, true  }, // part of DSP RAM
+    { 0x1FF70000,   0x8000, true  }, // part of DSP RAM
+    { 0x1F000000, 0x600000, false }, // entire VRAM
+};
+
 /**
  * Identifies the type of a bootable file
  * @param file open file
@@ -42,19 +49,11 @@ static FileType IdentifyFile(FileUtil::IOFile& file) {
 
 /**
  * Guess the type of a bootable file from its extension
- * @param filename String filename of bootable file
+ * @param extension String extension of bootable file
  * @return FileType of file
  */
-static FileType GuessFromFilename(const std::string& filename) {
-    if (filename.size() == 0) {
-        LOG_ERROR(Loader, "invalid filename %s", filename.c_str());
-        return FileType::Error;
-    }
-
-    size_t extension_loc = filename.find_last_of('.');
-    if (extension_loc == std::string::npos)
-        return FileType::Unknown;
-    std::string extension = Common::ToLower(filename.substr(extension_loc));
+static FileType GuessFromExtension(const std::string& extension_) {
+    std::string extension = Common::ToLower(extension_);
 
     if (extension == ".elf")
         return FileType::ELF;
@@ -100,8 +99,11 @@ ResultStatus LoadFile(const std::string& filename) {
         return ResultStatus::Error;
     }
 
+    std::string filename_filename, filename_extension;
+    Common::SplitPath(filename, nullptr, &filename_filename, &filename_extension);
+
     FileType type = IdentifyFile(*file);
-    FileType filename_type = GuessFromFilename(filename);
+    FileType filename_type = GuessFromExtension(filename_extension);
 
     if (type != filename_type) {
         LOG_WARNING(Loader, "File %s has a different type than its extension.", filename.c_str());
@@ -115,11 +117,11 @@ ResultStatus LoadFile(const std::string& filename) {
 
     //3DSX file format...
     case FileType::THREEDSX:
-        return AppLoader_THREEDSX(std::move(file)).Load();
+        return AppLoader_THREEDSX(std::move(file), filename_filename).Load();
 
     // Standard ELF file format...
     case FileType::ELF:
-        return AppLoader_ELF(std::move(file)).Load();
+        return AppLoader_ELF(std::move(file), filename_filename).Load();
 
     // NCCH/NCSD container formats...
     case FileType::CXI:
@@ -129,7 +131,6 @@ ResultStatus LoadFile(const std::string& filename) {
 
         // Load application and RomFS
         if (ResultStatus::Success == app_loader.Load()) {
-            Kernel::g_program_id = app_loader.GetProgramId();
             Service::FS::RegisterArchiveType(Common::make_unique<FileSys::ArchiveFactory_RomFS>(app_loader), Service::FS::ArchiveIdCode::RomFS);
             return ResultStatus::Success;
         }
@@ -139,11 +140,15 @@ ResultStatus LoadFile(const std::string& filename) {
     // Raw BIN file format...
     case FileType::BIN:
     {
+        Kernel::g_current_process = Kernel::Process::Create(filename_filename, 0);
+        Kernel::g_current_process->svc_access_mask.set();
+        Kernel::g_current_process->address_mappings = default_address_mappings;
+
         size_t size = (size_t)file->GetSize();
         if (file->ReadBytes(Memory::GetPointer(Memory::EXEFS_CODE_VADDR), size) != size)
             return ResultStatus::Error;
 
-        Kernel::LoadExec(Memory::EXEFS_CODE_VADDR);
+        Kernel::g_current_process->Run(Memory::EXEFS_CODE_VADDR, 0x30, Kernel::DEFAULT_STACK_SIZE);
         return ResultStatus::Success;
     }
 
diff --git a/src/core/loader/loader.h b/src/core/loader/loader.h
index 2b87239c..a56f6720 100644
--- a/src/core/loader/loader.h
+++ b/src/core/loader/loader.h
@@ -9,6 +9,8 @@
 #include "common/common_types.h"
 #include "common/file_util.h"
 
+#include "core/hle/kernel/process.h"
+
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Loader namespace
 
@@ -105,6 +107,12 @@ protected:
 };
 
 /**
+ * Common address mappings found in most games, used for binary formats that don't have this
+ * information.
+ */
+extern const std::initializer_list<Kernel::AddressMapping> default_address_mappings;
+
+/**
  * Identifies and loads a bootable file
  * @param filename String filename of bootable file
  * @return ResultStatus result of function
diff --git a/src/core/loader/ncch.cpp b/src/core/loader/ncch.cpp
index 9bce2b79..0e2db2fb 100644
--- a/src/core/loader/ncch.cpp
+++ b/src/core/loader/ncch.cpp
@@ -5,9 +5,12 @@
 #include <memory>
 
 #include "common/logging/log.h"
+#include "common/make_unique.h"
+#include "common/string_util.h"
+#include "common/swap.h"
 
-#include "core/loader/ncch.h"
 #include "core/hle/kernel/kernel.h"
+#include "core/loader/ncch.h"
 #include "core/mem_map.h"
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -117,8 +120,21 @@ ResultStatus AppLoader_NCCH::LoadExec() const {
 
     std::vector<u8> code;
     if (ResultStatus::Success == ReadCode(code)) {
+        std::string process_name = Common::StringFromFixedZeroTerminatedBuffer(
+                (const char*)exheader_header.codeset_info.name, 8);
+        u64 program_id = *reinterpret_cast<u64_le const*>(&ncch_header.program_id[0]);
+        Kernel::g_current_process = Kernel::Process::Create(process_name, program_id);
+
+        // Copy data while converting endianess
+        std::array<u32, ARRAY_SIZE(exheader_header.arm11_kernel_caps.descriptors)> kernel_caps;
+        std::copy_n(exheader_header.arm11_kernel_caps.descriptors, kernel_caps.size(), begin(kernel_caps));
+        Kernel::g_current_process->ParseKernelCaps(kernel_caps.data(), kernel_caps.size());
+
         Memory::WriteBlock(entry_point, &code[0], code.size());
-        Kernel::LoadExec(entry_point);
+
+        s32 priority = exheader_header.arm11_system_local_caps.priority;
+        u32 stack_size = exheader_header.codeset_info.stack_size;
+        Kernel::g_current_process->Run(entry_point, priority, stack_size);
         return ResultStatus::Success;
     }
     return ResultStatus::Error;
@@ -277,8 +293,4 @@ ResultStatus AppLoader_NCCH::ReadRomFS(std::vector<u8>& buffer) const {
     return ResultStatus::ErrorNotUsed;
 }
 
-u64 AppLoader_NCCH::GetProgramId() const {
-    return *reinterpret_cast<u64 const*>(&ncch_header.program_id[0]);
-}
-
 } // namespace Loader
diff --git a/src/core/loader/ncch.h b/src/core/loader/ncch.h
index 44c72a4e..29e39d2c 100644
--- a/src/core/loader/ncch.h
+++ b/src/core/loader/ncch.h
@@ -6,7 +6,9 @@
 
 #include <memory>
 
+#include "common/bit_field.h"
 #include "common/common_types.h"
+#include "common/swap.h"
 
 #include "core/loader/loader.h"
 
@@ -65,13 +67,13 @@ struct ExeFs_Header {
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // ExHeader (executable file system header) headers
 
-struct ExHeader_SystemInfoFlags{
+struct ExHeader_SystemInfoFlags {
     u8 reserved[5];
     u8 flag;
     u8 remaster_version[2];
 };
 
-struct ExHeader_CodeSegmentInfo{
+struct ExHeader_CodeSegmentInfo {
     u32 address;
     u32 num_max_pages;
     u32 code_size;
@@ -88,17 +90,17 @@ struct ExHeader_CodeSetInfo {
     u32 bss_size;
 };
 
-struct ExHeader_DependencyList{
+struct ExHeader_DependencyList {
     u8 program_id[0x30][8];
 };
 
-struct ExHeader_SystemInfo{
+struct ExHeader_SystemInfo {
     u64 save_data_size;
     u8 jump_id[8];
     u8 reserved_2[0x30];
 };
 
-struct ExHeader_StorageInfo{
+struct ExHeader_StorageInfo {
     u8 ext_save_data_id[8];
     u8 system_save_data_id[8];
     u8 reserved[8];
@@ -106,10 +108,16 @@ struct ExHeader_StorageInfo{
     u8 other_attributes;
 };
 
-struct ExHeader_ARM11_SystemLocalCaps{
+struct ExHeader_ARM11_SystemLocalCaps {
     u8 program_id[8];
     u32 core_version;
-    u8 flags[3];
+    u8 reserved_flags[2];
+    union {
+        u8 flags0;
+        BitField<0, 2, u8> ideal_processor;
+        BitField<2, 2, u8> affinity_mask;
+        BitField<4, 4, u8> system_mode;
+    };
     u8 priority;
     u8 resource_limit_descriptor[0x10][2];
     ExHeader_StorageInfo storage_info;
@@ -119,17 +127,17 @@ struct ExHeader_ARM11_SystemLocalCaps{
     u8 resource_limit_category;
 };
 
-struct ExHeader_ARM11_KernelCaps{
-    u8 descriptors[28][4];
+struct ExHeader_ARM11_KernelCaps {
+    u32_le descriptors[28];
     u8 reserved[0x10];
 };
 
-struct ExHeader_ARM9_AccessControl{
+struct ExHeader_ARM9_AccessControl {
     u8 descriptors[15];
     u8 descversion;
 };
 
-struct ExHeader_Header{
+struct ExHeader_Header {
     ExHeader_CodeSetInfo codeset_info;
     ExHeader_DependencyList dependency_list;
     ExHeader_SystemInfo system_info;
@@ -205,12 +213,6 @@ public:
      */
     ResultStatus ReadRomFS(std::vector<u8>& buffer) const override;
 
-    /*
-     * Gets the program id from the NCCH header
-     * @return u64 Program id
-     */
-    u64 GetProgramId() const;
-
 private:
 
     /**
diff --git a/src/core/mem_map.h b/src/core/mem_map.h
index 1fb77c94..fb582d65 100644
--- a/src/core/mem_map.h
+++ b/src/core/mem_map.h
@@ -10,6 +10,8 @@ namespace Memory {
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
+const u32 PAGE_SIZE = 0x1000;
+
 enum : u32 {
     BOOTROM_SIZE                = 0x00010000,   ///< Bootrom (super secret code/data @ 0x8000) size
     BOOTROM_PADDR               = 0x00000000,   ///< Bootrom physical address