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-rw-r--r--src/core/hle/kernel/process.cpp42
1 files changed, 5 insertions, 37 deletions
diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
index 9e145866f..98c5b0905 100644
--- a/src/core/hle/kernel/process.cpp
+++ b/src/core/hle/kernel/process.cpp
@@ -117,7 +117,7 @@ void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) {
117 vm_manager 117 vm_manager
118 .MapMemoryBlock(Memory::HEAP_VADDR_END - stack_size, 118 .MapMemoryBlock(Memory::HEAP_VADDR_END - stack_size,
119 std::make_shared<std::vector<u8>>(stack_size, 0), 0, stack_size, 119 std::make_shared<std::vector<u8>>(stack_size, 0), 0, stack_size,
120 MemoryState::Locked) 120 MemoryState::Heap)
121 .Unwrap(); 121 .Unwrap();
122 misc_memory_used += stack_size; 122 misc_memory_used += stack_size;
123 memory_region->used += stack_size; 123 memory_region->used += stack_size;
@@ -148,7 +148,7 @@ void Process::LoadModule(SharedPtr<CodeSet> module_, VAddr base_addr) {
148 }; 148 };
149 149
150 // Map CodeSet segments 150 // Map CodeSet segments
151 MapSegment(module_->code, VMAPermission::ReadWrite, MemoryState::Private); 151 MapSegment(module_->code, VMAPermission::ReadExecute, MemoryState::Code);
152 MapSegment(module_->rodata, VMAPermission::Read, MemoryState::Static); 152 MapSegment(module_->rodata, VMAPermission::Read, MemoryState::Static);
153 MapSegment(module_->data, VMAPermission::ReadWrite, MemoryState::Static); 153 MapSegment(module_->data, VMAPermission::ReadWrite, MemoryState::Static);
154} 154}
@@ -193,7 +193,7 @@ ResultVal<VAddr> Process::HeapAllocate(VAddr target, u32 size, VMAPermission per
193 ASSERT(heap_end - heap_start == heap_memory->size()); 193 ASSERT(heap_end - heap_start == heap_memory->size());
194 194
195 CASCADE_RESULT(auto vma, vm_manager.MapMemoryBlock(target, heap_memory, target - heap_start, 195 CASCADE_RESULT(auto vma, vm_manager.MapMemoryBlock(target, heap_memory, target - heap_start,
196 size, MemoryState::Private)); 196 size, MemoryState::Heap));
197 vm_manager.Reprotect(vma, perms); 197 vm_manager.Reprotect(vma, perms);
198 198
199 heap_used += size; 199 heap_used += size;
@@ -223,40 +223,8 @@ ResultCode Process::HeapFree(VAddr target, u32 size) {
223} 223}
224 224
225ResultVal<VAddr> Process::LinearAllocate(VAddr target, u32 size, VMAPermission perms) { 225ResultVal<VAddr> Process::LinearAllocate(VAddr target, u32 size, VMAPermission perms) {
226 auto& linheap_memory = memory_region->linear_heap_memory; 226 UNIMPLEMENTED();
227 227 return {};
228 VAddr heap_end = GetLinearHeapBase() + (u32)linheap_memory->size();
229 // Games and homebrew only ever seem to pass 0 here (which lets the kernel decide the address),
230 // but explicit addresses are also accepted and respected.
231 if (target == 0) {
232 target = heap_end;
233 }
234
235 if (target < GetLinearHeapBase() || target + size > GetLinearHeapLimit() || target > heap_end ||
236 target + size < target) {
237
238 return ERR_INVALID_ADDRESS;
239 }
240
241 // Expansion of the linear heap is only allowed if you do an allocation immediately at its
242 // end. It's possible to free gaps in the middle of the heap and then reallocate them later,
243 // but expansions are only allowed at the end.
244 if (target == heap_end) {
245 linheap_memory->insert(linheap_memory->end(), size, 0);
246 vm_manager.RefreshMemoryBlockMappings(linheap_memory.get());
247 }
248
249 // TODO(yuriks): As is, this lets processes map memory allocated by other processes from the
250 // same region. It is unknown if or how the 3DS kernel checks against this.
251 size_t offset = target - GetLinearHeapBase();
252 CASCADE_RESULT(auto vma, vm_manager.MapMemoryBlock(target, linheap_memory, offset, size,
253 MemoryState::Continuous));
254 vm_manager.Reprotect(vma, perms);
255
256 linear_heap_used += size;
257 memory_region->used += size;
258
259 return MakeResult<VAddr>(target);
260} 228}
261 229
262ResultCode Process::LinearFree(VAddr target, u32 size) { 230ResultCode Process::LinearFree(VAddr target, u32 size) {