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-rw-r--r--src/core/hle/function_wrappers.h4
-rw-r--r--src/core/hle/kernel/shared_memory.cpp21
-rw-r--r--src/core/hle/kernel/shared_memory.h7
-rw-r--r--src/core/hle/result.h1
-rw-r--r--src/core/hle/svc.cpp32
5 files changed, 60 insertions, 5 deletions
diff --git a/src/core/hle/function_wrappers.h b/src/core/hle/function_wrappers.h
index 3501e45db..882a51df1 100644
--- a/src/core/hle/function_wrappers.h
+++ b/src/core/hle/function_wrappers.h
@@ -188,6 +188,10 @@ template<ResultCode func(s64*, Handle, u32)> void Wrap() {
FuncReturn(retval);
}
+template<ResultCode func(Handle, u32)> void Wrap() {
+ FuncReturn(func(PARAM(0), PARAM(1)).raw);
+}
+
////////////////////////////////////////////////////////////////////////////////////////////////////
// Function wrappers that return type u32
diff --git a/src/core/hle/kernel/shared_memory.cpp b/src/core/hle/kernel/shared_memory.cpp
index 1f477664b..d90f0f00f 100644
--- a/src/core/hle/kernel/shared_memory.cpp
+++ b/src/core/hle/kernel/shared_memory.cpp
@@ -39,6 +39,12 @@ ResultCode SharedMemory::Map(VAddr address, MemoryPermission permissions,
ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
}
+ // TODO(Subv): Return E0E01BEE when permissions and other_permissions don't
+ // match what was specified when the memory block was created.
+
+ // TODO(Subv): Return E0E01BEE when address should be 0.
+ // Note: Find out when that's the case.
+
if (fixed_address != 0) {
if (address != 0 && address != fixed_address) {
LOG_ERROR(Kernel, "cannot map id=%u, address=0x%08X name=%s: fixed_addres is 0x%08X!",
@@ -74,6 +80,21 @@ ResultCode SharedMemory::Map(VAddr address, MemoryPermission permissions,
return RESULT_SUCCESS;
}
+ResultCode SharedMemory::Unmap(VAddr address) {
+ if (base_address == 0) {
+ // TODO(Subv): Verify what actually happens when you want to unmap a memory block that
+ // was originally mapped with address = 0
+ return ResultCode(ErrorDescription::InvalidAddress, ErrorModule::OS, ErrorSummary::InvalidArgument, ErrorLevel::Usage);
+ }
+
+ if (base_address != address)
+ return ResultCode(ErrorDescription::WrongAddress, ErrorModule::OS, ErrorSummary::InvalidState, ErrorLevel::Usage);
+
+ base_address = 0;
+
+ return RESULT_SUCCESS;
+}
+
u8* SharedMemory::GetPointer(u32 offset) {
if (base_address != 0)
return Memory::GetPointer(base_address + offset);
diff --git a/src/core/hle/kernel/shared_memory.h b/src/core/hle/kernel/shared_memory.h
index 35b550d12..b51049ad0 100644
--- a/src/core/hle/kernel/shared_memory.h
+++ b/src/core/hle/kernel/shared_memory.h
@@ -53,6 +53,13 @@ public:
ResultCode Map(VAddr address, MemoryPermission permissions, MemoryPermission other_permissions);
/**
+ * Unmaps a shared memory block from the specified address in system memory
+ * @param address Address in system memory where the shared memory block is mapped
+ * @return Result code of the unmap operation
+ */
+ ResultCode Unmap(VAddr address);
+
+ /**
* Gets a pointer to the shared memory block
* @param offset Offset from the start of the shared memory block to get pointer
* @return Pointer to the shared memory block from the specified offset
diff --git a/src/core/hle/result.h b/src/core/hle/result.h
index cb2d681e0..ea3abb5f6 100644
--- a/src/core/hle/result.h
+++ b/src/core/hle/result.h
@@ -18,6 +18,7 @@
/// Detailed description of the error. This listing is likely incomplete.
enum class ErrorDescription : u32 {
Success = 0,
+ WrongAddress = 53,
FS_NotFound = 100,
FS_NotFormatted = 340, ///< This is used by the FS service when creating a SaveData archive
InvalidSection = 1000,
diff --git a/src/core/hle/svc.cpp b/src/core/hle/svc.cpp
index e39edcc16..ba21e06d5 100644
--- a/src/core/hle/svc.cpp
+++ b/src/core/hle/svc.cpp
@@ -161,6 +161,8 @@ static ResultCode MapMemoryBlock(Handle handle, u32 addr, u32 permissions, u32 o
LOG_TRACE(Kernel_SVC, "called memblock=0x%08X, addr=0x%08X, mypermissions=0x%08X, otherpermission=%d",
handle, addr, permissions, other_permissions);
+ // TODO(Subv): The same process that created a SharedMemory object can not map it in its own address space
+
SharedPtr<SharedMemory> shared_memory = Kernel::g_handle_table.Get<SharedMemory>(handle);
if (shared_memory == nullptr)
return ERR_INVALID_HANDLE;
@@ -175,13 +177,27 @@ static ResultCode MapMemoryBlock(Handle handle, u32 addr, u32 permissions, u32 o
case MemoryPermission::WriteExecute:
case MemoryPermission::ReadWriteExecute:
case MemoryPermission::DontCare:
- shared_memory->Map(addr, permissions_type,
+ return shared_memory->Map(addr, permissions_type,
static_cast<MemoryPermission>(other_permissions));
- break;
default:
LOG_ERROR(Kernel_SVC, "unknown permissions=0x%08X", permissions);
}
- return RESULT_SUCCESS;
+
+ return ResultCode(ErrorDescription::InvalidCombination, ErrorModule::OS, ErrorSummary::InvalidArgument, ErrorLevel::Usage);
+}
+
+static ResultCode UnmapMemoryBlock(Handle handle, u32 addr) {
+ using Kernel::SharedMemory;
+
+ LOG_TRACE(Kernel_SVC, "called memblock=0x%08X, addr=0x%08X", handle, addr);
+
+ // TODO(Subv): Return E0A01BF5 if the address is not in the application's heap
+
+ SharedPtr<SharedMemory> shared_memory = Kernel::g_handle_table.Get<SharedMemory>(handle);
+ if (shared_memory == nullptr)
+ return ERR_INVALID_HANDLE;
+
+ return shared_memory->Unmap(addr);
}
/// Connect to an OS service given the port name, returns the handle to the port to out
@@ -765,7 +781,13 @@ static s64 GetSystemTick() {
static ResultCode CreateMemoryBlock(Handle* out_handle, u32 addr, u32 size, u32 my_permission,
u32 other_permission) {
using Kernel::SharedMemory;
- // TODO(Subv): Implement this function
+
+ if (size % Memory::PAGE_SIZE != 0)
+ return ResultCode(ErrorDescription::MisalignedSize, ErrorModule::OS, ErrorSummary::InvalidArgument, ErrorLevel::Usage);
+
+ // TODO(Subv): Return E0A01BF5 if the address is not in the application's heap
+
+ // TODO(Subv): Implement this function properly
using Kernel::MemoryPermission;
SharedPtr<SharedMemory> shared_memory = SharedMemory::Create(size,
@@ -912,7 +934,7 @@ static const FunctionDef SVC_Table[] = {
{0x1D, HLE::Wrap<ClearTimer>, "ClearTimer"},
{0x1E, HLE::Wrap<CreateMemoryBlock>, "CreateMemoryBlock"},
{0x1F, HLE::Wrap<MapMemoryBlock>, "MapMemoryBlock"},
- {0x20, nullptr, "UnmapMemoryBlock"},
+ {0x20, HLE::Wrap<UnmapMemoryBlock>, "UnmapMemoryBlock"},
{0x21, HLE::Wrap<CreateAddressArbiter>, "CreateAddressArbiter"},
{0x22, HLE::Wrap<ArbitrateAddress>, "ArbitrateAddress"},
{0x23, HLE::Wrap<CloseHandle>, "CloseHandle"},