1 /*
2  * Copyright (c) 2012 Apple Inc. All rights reserved.
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27  */
28 
29 // These declarations must match those in Libc's stack_logging.h
30 
31 #include <mach/vm_statistics.h>         // to get VM_FLAGS_ALIAS_MASK
32 
33 #define stack_logging_type_vm_allocate 16      // mach_vm_allocate, mmap, mach_vm_map, mach_vm_remap, etc
34 #define stack_logging_type_vm_deallocate 32    // mach_vm_deallocate or munmap
35 #define stack_logging_type_mapped_file_or_shared_mem 128    // a hint that the VM region *might* be a mapped file or shared memory
36 
37 // For logging VM allocation and deallocation, arg1 here
38 // is the mach_port_name_t of the target task in which the
39 // alloc or dealloc is occurring. For example, for mmap()
40 // that would be mach_task_self(), but for a cross-task-capable
41 // call such as mach_vm_map(), it is the target task.
42 
43 typedef void (malloc_logger_t)(uint32_t type, uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, uintptr_t result, uint32_t num_hot_frames_to_skip);
44 
45 extern malloc_logger_t *__syscall_logger;
46