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arch-x86, sim-se: move mmap end downward in case of large stacks (#1810)

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Fix #1809. Shift the mmap end to a lower address in case the process has
a large max stack size, to avoid overlapping the stack with the mmap
memory range.

Change-Id: Idae343dbbe851a7510463ff141c03f1847e36328
This commit is contained in:
Nicholas Mosier
2024-11-27 04:11:27 -08:00
committed by Bobby R. Bruce
parent 1b16697029
commit 25523e73a4
1 changed files with 1 additions and 1 deletions
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src/arch/x86/process.cc
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@@ -114,7 +114,7 @@ X86_64Process::X86_64Process(const ProcessParams &params,
Addr stack_base = 0x7FFFFFFFF000ULL;
Addr max_stack_size = params.maxStackSize;
Addr next_thread_stack_base = stack_base - max_stack_size;
Addr mmap_end = 0x7FFFF7FFF000ULL;
Addr mmap_end = std::min<Addr>(0x7FFFF7FFF000ULL, next_thread_stack_base);
memState = std::make_shared<MemState>(
this, brk_point, stack_base, max_stack_size,