MemoryTracing.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#ifndef KERNEL_MEMORYTRACING_H
#define KERNEL_MEMORYTRACING_H
 
#include "pedigree/kernel/utilities/StaticString.h"
 
namespace MemoryTracing {
enum AllocationTrace {
  Allocation = 'A',
  Free = 'F',
  Metadata = 'M',
  PageAlloc = 'P',
  PageFree = 'X',
};
 
const int num_backtrace_entries = 4;
 
union AllocationTraceEntry {
  struct {
    AllocationTrace type;
    uint32_t sz;
    uint64_t ptr;
    uint32_t bt[num_backtrace_entries];
  } data;
 
  char buf[sizeof(data)];
};
}  // namespace MemoryTracing
 
extern void traceAllocation(void* ptr, MemoryTracing::AllocationTrace type, size_t size);
 
extern void traceMetadata(NormalStaticString str, void* p1, void* p2);
 
#endif