/usr/include/CppUTest/MemoryLeakDetectorMallocMacros.h is in libcpputest-dev 3.4-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | /*
* This file can be used to get extra debugging information about memory leaks in your production code.
* It defines a preprocessor macro for malloc. This will pass additional information to the
* malloc and this will give the line/file information of the memory leaks in your code.
*
* You can use this by including this file to all your production code. When using gcc, you can use
* the -include file to do this for you.
*
*/
#include "CppUTestConfig.h"
#if CPPUTEST_USE_MEM_LEAK_DETECTION
/* This prevents the declaration from done twice and makes sure the file only #defines malloc, so it can be included anywhere */
#ifndef CPPUTEST_USE_MALLOC_MACROS
#ifdef __cplusplus
extern "C"
{
#endif
extern void* cpputest_malloc_location(size_t size, const char* file, int line);
extern void* cpputest_calloc_location(size_t count, size_t size, const char* file, int line);
extern void* cpputest_realloc_location(void *, size_t, const char* file, int line);
extern void cpputest_free_location(void* buffer, const char* file, int line);
#ifdef __cplusplus
}
#endif
extern void crash_on_allocation_number(unsigned number);
#endif
/* NOTE on strdup!
*
* strdup was implemented earlier, however it is *not* an Standard C function but a POSIX function.
* Because of that, it can lead to portability issues by providing more than is available on the local platform.
* For that reason, strdup is *not* implemented as a macro. If you still want to use it, an easy implementation would be:
*
* size_t length = 1 + strlen(str);
* char* result = (char*) cpputest_malloc_location(length, file, line);
* memcpy(result, str, length);
* return result;
*
*/
#define malloc(a) cpputest_malloc_location(a, __FILE__, __LINE__)
#define calloc(a, b) cpputest_calloc_location(a, b, __FILE__, __LINE__)
#define realloc(a, b) cpputest_realloc_location(a, b, __FILE__, __LINE__)
#define free(a) cpputest_free_location(a, __FILE__, __LINE__)
#define CPPUTEST_USE_MALLOC_MACROS 1
#endif
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