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Kernel: Merge PurgeableVMObject into AnonymousVMObject
This implements memory commitments and lazy-allocation of committed memory.
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476f17b3f1
35 changed files with 937 additions and 564 deletions
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@ -45,6 +45,7 @@
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#include <Kernel/ThreadTracer.h>
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#include <Kernel/UnixTypes.h>
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#include <Kernel/UnveilNode.h>
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#include <Kernel/VM/AllocationStrategy.h>
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#include <Kernel/VM/RangeAllocator.h>
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#include <LibC/signal_numbers.h>
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@ -112,7 +113,7 @@ public:
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}
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template<typename EntryFunction>
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static NonnullRefPtr<Process> create_kernel_process(RefPtr<Thread>& first_thread, String&& name, EntryFunction entry, u32 affinity = THREAD_AFFINITY_DEFAULT)
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static RefPtr<Process> create_kernel_process(RefPtr<Thread>& first_thread, String&& name, EntryFunction entry, u32 affinity = THREAD_AFFINITY_DEFAULT)
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{
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auto* entry_func = new EntryFunction(move(entry));
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return create_kernel_process(
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@ -124,7 +125,7 @@ public:
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entry_func, affinity);
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}
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static NonnullRefPtr<Process> create_kernel_process(RefPtr<Thread>& first_thread, String&& name, void (*entry)(void*), void* entry_data = nullptr, u32 affinity = THREAD_AFFINITY_DEFAULT);
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static RefPtr<Process> create_kernel_process(RefPtr<Thread>& first_thread, String&& name, void (*entry)(void*), void* entry_data = nullptr, u32 affinity = THREAD_AFFINITY_DEFAULT);
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static RefPtr<Process> create_user_process(RefPtr<Thread>& first_thread, const String& path, uid_t, gid_t, ProcessID ppid, int& error, Vector<String>&& arguments = Vector<String>(), Vector<String>&& environment = Vector<String>(), TTY* = nullptr);
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~Process();
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@ -436,10 +437,10 @@ public:
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return m_euid == 0;
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}
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Region* allocate_region_with_vmobject(VirtualAddress, size_t, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot, bool should_commit = true);
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Region* allocate_region(VirtualAddress, size_t, const String& name, int prot = PROT_READ | PROT_WRITE, bool should_commit = true);
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Region* allocate_region_with_vmobject(const Range&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot, bool should_commit = true);
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Region* allocate_region(const Range&, const String& name, int prot = PROT_READ | PROT_WRITE, bool should_commit = true);
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Region* allocate_region_with_vmobject(VirtualAddress, size_t, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot);
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Region* allocate_region(VirtualAddress, size_t, const String& name, int prot = PROT_READ | PROT_WRITE, AllocationStrategy strategy = AllocationStrategy::Reserve);
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Region* allocate_region_with_vmobject(const Range&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot);
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Region* allocate_region(const Range&, const String& name, int prot = PROT_READ | PROT_WRITE, AllocationStrategy strategy = AllocationStrategy::Reserve);
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bool deallocate_region(Region& region);
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Region& allocate_split_region(const Region& source_region, const Range&, size_t offset_in_vmobject);
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