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Merge pull request #14838 from OatmealDome/mac-memory-increase-fail

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MemArenaDarwin: Pass the MAP_MEM_VM_SHARE flag to mach_make_memory_entry_64
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JosJuice
2026-09-05 12:18:19 +02:00
committed by GitHub
parent e559fd7c3c 27804b4e67
commit 7f6eb621ad
1 changed files with 5 additions and 1 deletions
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Source/Core/Common/MemArenaDarwin.cpp
+5 -1
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@@ -26,7 +26,11 @@ void MemArena::GrabSHMSegment(size_t size, std::string_view base_name)
}
memory_object_size_t entry_size = size;
constexpr vm_prot_t prot = VM_PROT_READ | VM_PROT_WRITE;
// Large anonymous mappings are split into 128 MB chunks. Without MAP_MEM_VM_SHARE,
// mach_make_memory_entry_64 will only return an entry spanning the first chunk.
// Attempting to map through that entry will fail if it extends beyond the 128 MB
// boundary, which can happen when the sizes of MEM1/MEM2 are overridden.
constexpr vm_prot_t prot = VM_PROT_READ | VM_PROT_WRITE | MAP_MEM_VM_SHARE;
retval = mach_make_memory_entry_64(mach_task_self(), &entry_size, m_shm_address, prot,
&m_shm_entry, MACH_PORT_NULL);