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Cleanup heap use.

This commit is contained in:
Ben Vanik 2015-07-29 20:33:59 -07:00
parent c67173fe36
commit c0dcf83de8
1 changed files with 4 additions and 7 deletions
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11
src/xenia/cpu/thread_state.cc
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@ -48,9 +48,10 @@ ThreadState::ThreadState(Processor* processor, uint32_t thread_id,
if (!stack_address) {
// We must always allocate 64K as a guard region before stacks, as we can
// only Protect() on system page granularity.
auto heap = memory()->LookupHeap(0x40000000);
stack_size = (stack_size + 0xFFF) & 0xFFFFF000;
uint32_t stack_alignment = (stack_size & 0xF000) ? 0x1000 : 0x10000;
uint32_t stack_padding = 64 * 1024; // 0x4...0x7F is 64k.
uint32_t stack_padding = heap->page_size();
uint32_t actual_stack_size = stack_padding + stack_size;
bool top_down = false;
switch (stack_type) {
@ -64,9 +65,7 @@ ThreadState::ThreadState(Processor* processor, uint32_t thread_id,
assert_unhandled_case(stack_type);
break;
}
memory()
->LookupHeap(0x40000000)
->AllocRange(0x40000000, 0x7FFFFFFF, actual_stack_size, stack_alignment,
heap->AllocRange(0x40000000, 0x7FFFFFFF, actual_stack_size, stack_alignment,
kMemoryAllocationReserve | kMemoryAllocationCommit,
kMemoryProtectRead | kMemoryProtectWrite, top_down,
&stack_address_);
@ -75,9 +74,7 @@ ThreadState::ThreadState(Processor* processor, uint32_t thread_id,
stack_base_ = stack_address_ + actual_stack_size;
stack_limit_ = stack_address_ + stack_padding;
memory()->Fill(stack_address_, actual_stack_size, 0xBE);
memory()
->LookupHeap(stack_address_)
->Protect(stack_address_, stack_padding, kMemoryProtectNoAccess);
heap->Protect(stack_address_, stack_padding, kMemoryProtectNoAccess);
} else {
stack_address_ = stack_address;
stack_allocated_ = false;