From 83377113bfe7791483a1b67e06dd0f51620c04ec Mon Sep 17 00:00:00 2001 From: Lioncash Date: Mon, 24 Sep 2018 20:01:45 -0400 Subject: memory: Dehardcode the use of fixed memory range constants The locations of these can actually vary depending on the address space layout, so we shouldn't be using these when determining where to map memory or be using them as offsets for calculations. This keeps all the memory ranges flexible and malleable based off of the virtual memory manager instance state. --- src/core/hle/kernel/process.cpp | 20 ++++++++++---------- src/core/hle/kernel/shared_memory.cpp | 4 +++- src/core/hle/kernel/svc.cpp | 3 ++- src/core/hle/kernel/thread.cpp | 3 ++- 4 files changed, 17 insertions(+), 13 deletions(-) (limited to 'src/core/hle') diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp index f337f626f..a8e3098ca 100644 --- a/src/core/hle/kernel/process.cpp +++ b/src/core/hle/kernel/process.cpp @@ -127,7 +127,7 @@ void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) { // TODO(bunnei): This is heap area that should be allocated by the kernel and not mapped as part // of the user address space. vm_manager - .MapMemoryBlock(Memory::STACK_AREA_VADDR_END - stack_size, + .MapMemoryBlock(vm_manager.GetTLSIORegionEndAddress() - stack_size, std::make_shared>(stack_size, 0), 0, stack_size, MemoryState::Mapped) .Unwrap(); @@ -193,6 +193,7 @@ static std::tuple FindFreeThreadLocalSlot( VAddr Process::MarkNextAvailableTLSSlotAsUsed(Thread& thread) { auto [available_page, available_slot, needs_allocation] = FindFreeThreadLocalSlot(tls_slots); + const VAddr tls_begin = vm_manager.GetTLSIORegionBaseAddress(); if (needs_allocation) { tls_slots.emplace_back(0); // The page is completely available at the start @@ -205,18 +206,17 @@ VAddr Process::MarkNextAvailableTLSSlotAsUsed(Thread& thread) { vm_manager.RefreshMemoryBlockMappings(tls_memory.get()); - vm_manager.MapMemoryBlock(Memory::TLS_AREA_VADDR + available_page * Memory::PAGE_SIZE, - tls_memory, 0, Memory::PAGE_SIZE, MemoryState::ThreadLocal); + vm_manager.MapMemoryBlock(tls_begin + available_page * Memory::PAGE_SIZE, tls_memory, 0, + Memory::PAGE_SIZE, MemoryState::ThreadLocal); } tls_slots[available_page].set(available_slot); - return Memory::TLS_AREA_VADDR + available_page * Memory::PAGE_SIZE + - available_slot * Memory::TLS_ENTRY_SIZE; + return tls_begin + available_page * Memory::PAGE_SIZE + available_slot * Memory::TLS_ENTRY_SIZE; } void Process::FreeTLSSlot(VAddr tls_address) { - const VAddr tls_base = tls_address - Memory::TLS_AREA_VADDR; + const VAddr tls_base = tls_address - vm_manager.GetTLSIORegionBaseAddress(); const VAddr tls_page = tls_base / Memory::PAGE_SIZE; const VAddr tls_slot = (tls_base % Memory::PAGE_SIZE) / Memory::TLS_ENTRY_SIZE; @@ -240,8 +240,8 @@ void Process::LoadModule(SharedPtr module_, VAddr base_addr) { } ResultVal Process::HeapAllocate(VAddr target, u64 size, VMAPermission perms) { - if (target < Memory::HEAP_VADDR || target + size > Memory::HEAP_VADDR_END || - target + size < target) { + if (target < vm_manager.GetHeapRegionBaseAddress() || + target + size > vm_manager.GetHeapRegionEndAddress() || target + size < target) { return ERR_INVALID_ADDRESS; } @@ -276,8 +276,8 @@ ResultVal Process::HeapAllocate(VAddr target, u64 size, VMAPermission per } ResultCode Process::HeapFree(VAddr target, u32 size) { - if (target < Memory::HEAP_VADDR || target + size > Memory::HEAP_VADDR_END || - target + size < target) { + if (target < vm_manager.GetHeapRegionBaseAddress() || + target + size > vm_manager.GetHeapRegionEndAddress() || target + size < target) { return ERR_INVALID_ADDRESS; } diff --git a/src/core/hle/kernel/shared_memory.cpp b/src/core/hle/kernel/shared_memory.cpp index abb1d09cd..9b78c8cb5 100644 --- a/src/core/hle/kernel/shared_memory.cpp +++ b/src/core/hle/kernel/shared_memory.cpp @@ -8,6 +8,7 @@ #include "common/logging/log.h" #include "core/core.h" #include "core/hle/kernel/errors.h" +#include "core/hle/kernel/kernel.h" #include "core/hle/kernel/shared_memory.h" #include "core/memory.h" @@ -71,7 +72,8 @@ SharedPtr SharedMemory::CreateForApplet( shared_memory->other_permissions = other_permissions; shared_memory->backing_block = std::move(heap_block); shared_memory->backing_block_offset = offset; - shared_memory->base_address = Memory::HEAP_VADDR + offset; + shared_memory->base_address = + kernel.CurrentProcess()->vm_manager.GetHeapRegionBaseAddress() + offset; return shared_memory; } diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index e0f5e3f39..c2b77eb49 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -51,8 +51,9 @@ static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) { } auto& process = *Core::CurrentProcess(); + const VAddr heap_base = process.vm_manager.GetHeapRegionBaseAddress(); CASCADE_RESULT(*heap_addr, - process.HeapAllocate(Memory::HEAP_VADDR, heap_size, VMAPermission::ReadWrite)); + process.HeapAllocate(heap_base, heap_size, VMAPermission::ReadWrite)); return RESULT_SUCCESS; } diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp index 315f65338..064ed908d 100644 --- a/src/core/hle/kernel/thread.cpp +++ b/src/core/hle/kernel/thread.cpp @@ -262,8 +262,9 @@ SharedPtr SetupMainThread(KernelCore& kernel, VAddr entry_point, u32 pri SetCurrentPageTable(&owner_process.vm_manager.page_table); // Initialize new "main" thread + const VAddr stack_top = owner_process.vm_manager.GetTLSIORegionEndAddress(); auto thread_res = Thread::Create(kernel, "main", entry_point, priority, 0, THREADPROCESSORID_0, - Memory::STACK_AREA_VADDR_END, &owner_process); + stack_top, &owner_process); SharedPtr thread = std::move(thread_res).Unwrap(); -- cgit v1.2.3