diff options
Diffstat (limited to 'src/core')
| -rw-r--r-- | src/core/hle/kernel/svc.cpp | 9 | ||||
| -rw-r--r-- | src/core/hle/service/ldr/ldr.cpp | 32 |
2 files changed, 34 insertions, 7 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 332573a95..58374f829 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -318,7 +318,14 @@ static ResultCode UnmapMemory(Core::System& system, VAddr dst_addr, VAddr src_ad return result; } - return vm_manager.UnmapRange(dst_addr, size); + const auto unmap_res = vm_manager.UnmapRange(dst_addr, size); + + // Reprotect the source mapping on success + if (unmap_res.IsSuccess()) { + ASSERT(vm_manager.ReprotectRange(src_addr, size, VMAPermission::ReadWrite).IsSuccess()); + } + + return unmap_res; } /// Connect to an OS service given the port name, returns the handle to the port to out diff --git a/src/core/hle/service/ldr/ldr.cpp b/src/core/hle/service/ldr/ldr.cpp index b839303ac..8ddad8682 100644 --- a/src/core/hle/service/ldr/ldr.cpp +++ b/src/core/hle/service/ldr/ldr.cpp @@ -345,14 +345,16 @@ public: vm_manager .MirrorMemory(*map_address, nro_address, nro_size, Kernel::MemoryState::ModuleCode) .IsSuccess()); - ASSERT(vm_manager.UnmapRange(nro_address, nro_size).IsSuccess()); + ASSERT(vm_manager.ReprotectRange(nro_address, nro_size, Kernel::VMAPermission::None) + .IsSuccess()); if (bss_size > 0) { ASSERT(vm_manager .MirrorMemory(*map_address + nro_size, bss_address, bss_size, Kernel::MemoryState::ModuleCode) .IsSuccess()); - ASSERT(vm_manager.UnmapRange(bss_address, bss_size).IsSuccess()); + ASSERT(vm_manager.ReprotectRange(bss_address, bss_size, Kernel::VMAPermission::None) + .IsSuccess()); } vm_manager.ReprotectRange(*map_address, header.text_size, @@ -364,7 +366,8 @@ public: Core::System::GetInstance().InvalidateCpuInstructionCaches(); - nro.insert_or_assign(*map_address, NROInfo{hash, nro_size + bss_size}); + nro.insert_or_assign(*map_address, + NROInfo{hash, nro_address, nro_size, bss_address, bss_size}); IPC::ResponseBuilder rb{ctx, 4}; rb.Push(RESULT_SUCCESS); @@ -409,9 +412,23 @@ public: } auto& vm_manager = Core::CurrentProcess()->VMManager(); - const auto& nro_size = iter->second.size; + const auto& nro_info = iter->second; - ASSERT(vm_manager.UnmapRange(nro_address, nro_size).IsSuccess()); + // Unmap the mirrored memory + ASSERT( + vm_manager.UnmapRange(nro_address, nro_info.nro_size + nro_info.bss_size).IsSuccess()); + + // Reprotect the source memory + ASSERT(vm_manager + .ReprotectRange(nro_info.nro_address, nro_info.nro_size, + Kernel::VMAPermission::ReadWrite) + .IsSuccess()); + if (nro_info.bss_size > 0) { + ASSERT(vm_manager + .ReprotectRange(nro_info.bss_address, nro_info.bss_size, + Kernel::VMAPermission::ReadWrite) + .IsSuccess()); + } Core::System::GetInstance().InvalidateCpuInstructionCaches(); @@ -473,7 +490,10 @@ private: struct NROInfo { SHA256Hash hash; - u64 size; + VAddr nro_address; + u64 nro_size; + VAddr bss_address; + u64 bss_size; }; bool initialized = false; |