diff options
Diffstat (limited to 'libsanitizer/include/sanitizer/allocator_interface.h')
| -rw-r--r-- | libsanitizer/include/sanitizer/allocator_interface.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/libsanitizer/include/sanitizer/allocator_interface.h b/libsanitizer/include/sanitizer/allocator_interface.h index 97a72a258eb..d4801e9ff0c 100644 --- a/libsanitizer/include/sanitizer/allocator_interface.h +++ b/libsanitizer/include/sanitizer/allocator_interface.h @@ -57,6 +57,23 @@ extern "C" { deallocation of "ptr". */ void __sanitizer_malloc_hook(const volatile void *ptr, size_t size); void __sanitizer_free_hook(const volatile void *ptr); + + /* Installs a pair of hooks for malloc/free. + Several (currently, 5) hook pairs may be installed, they are executed + in the order they were installed and after calling + __sanitizer_malloc_hook/__sanitizer_free_hook. + Unlike __sanitizer_malloc_hook/__sanitizer_free_hook these hooks can be + chained and do not rely on weak symbols working on the platform, but + require __sanitizer_install_malloc_and_free_hooks to be called at startup + and thus will not be called on malloc/free very early in the process. + Returns the number of hooks currently installed or 0 on failure. + Not thread-safe, should be called in the main thread before starting + other threads. + */ + int __sanitizer_install_malloc_and_free_hooks( + void (*malloc_hook)(const volatile void *, size_t), + void (*free_hook)(const volatile void *)); + #ifdef __cplusplus } // extern "C" #endif |