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#include <unistd.h>

#include <sys/mman.h>

#include <stdio.h>

#include <stdlib.h>

#ifdef L_calloc_dbg

void *

calloc_dbg(size_t num, size_t size, char * function, char * file, int line)

{

        void * ptr;

        fprintf(stderr, "calloc of %d bytes at %s @%s:%d = ", num*size, function, file, line);

        ptr = calloc(num,size);

        fprtinf(stderr, "%p\n", ptr);

        return ptr;

}

#endif

#ifdef L_malloc_dbg

void *

malloc_dbg(size_t len, char * function, char * file, int line)

{

        void * result;

        fprintf(stderr, "malloc of %d bytes at %s @%s:%d = ", len, function, file, line);

        result = malloc(len);

        fprintf(stderr, "%p\n", result);

        return result;

}

#endif

#ifdef L_free_dbg

void

free_dbg(void * ptr, char * function, char * file, int line)

{

        fprintf(stderr, "free of %p at %s @%s:%d\n", ptr, function, file, line);

        free(ptr);

}

#endif

#ifdef L_calloc

void *

calloc(size_t num, size_t size)

{

        void * ptr = malloc(num*size);

        if (ptr)

                memset(ptr, 0, num*size);

        return ptr;

}

#endif

#ifdef L_malloc

void *

malloc(size_t len)

{

  void * result = mmap((void *)0, len, PROT_READ | PROT_WRITE,

                 MAP_SHARED | MAP_ANONYMOUS, 0, 0);

  if (result == (void*)-1)

    return 0;

  return result;

}

#endif

#ifdef L_free

void

free(void * ptr)

{

  munmap(ptr, 0);

}

#endif