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#ifndef _included_clib_sanitizer_h
#define _included_clib_sanitizer_h
#ifdef CLIB_SANITIZE_ADDR
#include <sanitizer/asan_interface.h>
#include <vppinfra/clib.h>
#define CLIB_NOSANITIZE_ADDR __attribute__((no_sanitize_address))
#define CLIB_MEM_POISON(a, s) ASAN_POISON_MEMORY_REGION((a), (s))
#define CLIB_MEM_UNPOISON(a, s) ASAN_UNPOISON_MEMORY_REGION((a), (s))
#define CLIB_MEM_OVERFLOW(f, src, n) \
({ \
typeof (f) clib_mem_overflow_ret__; \
const void *clib_mem_overflow_src__ = (src); \
size_t clib_mem_overflow_n__ = (n); \
const void *clib_mem_overflow_start__ = __asan_region_is_poisoned((void *)clib_mem_overflow_src__, clib_mem_overflow_n__); \
clib_mem_overflow_n__ -= (size_t)(clib_mem_overflow_start__ - clib_mem_overflow_src__); \
if (clib_mem_overflow_start__) \
CLIB_MEM_UNPOISON(clib_mem_overflow_start__, clib_mem_overflow_n__); \
clib_mem_overflow_ret__ = f; \
if (clib_mem_overflow_start__) \
CLIB_MEM_POISON(clib_mem_overflow_start__, clib_mem_overflow_n__); \
clib_mem_overflow_ret__; \
})
#define CLIB_MEM_OVERFLOW_LOAD(f, src) \
({ \
typeof(src) clib_mem_overflow_load_src__ = (src); \
CLIB_MEM_OVERFLOW(f(clib_mem_overflow_load_src__), clib_mem_overflow_load_src__, sizeof(typeof(f(clib_mem_overflow_load_src__)))); \
})
static_always_inline void
CLIB_MEM_POISON_LEN (void *src, size_t oldlen, size_t newlen)
{
if (oldlen > newlen)
CLIB_MEM_POISON (src + newlen, oldlen - newlen);
else if (newlen > oldlen)
CLIB_MEM_UNPOISON (src + oldlen, newlen - oldlen);
}
#else /* CLIB_SANITIZE_ADDR */
#define CLIB_NOSANITIZE_ADDR
#define CLIB_MEM_POISON(a, s) (void)(a)
#define CLIB_MEM_UNPOISON(a, s) (void)(a)
#define CLIB_MEM_OVERFLOW(a, b, c) a
#define CLIB_MEM_OVERFLOW_LOAD(f, src) f(src)
#define CLIB_MEM_POISON_LEN(a, b, c)
#endif /* CLIB_SANITIZE_ADDR */
/*
* clang tends to force alignment of all sections when compiling for address
* sanitizer. This confuse VPP plugin infra, prevent clang to do that
* On the contrary, GCC does not support this kind of attribute on sections
* sigh.
*/
#ifdef __clang__
#define CLIB_NOSANITIZE_PLUGIN_REG_SECTION CLIB_NOSANITIZE_ADDR
#else
#define CLIB_NOSANITIZE_PLUGIN_REG_SECTION
#endif
#endif /* _included_clib_sanitizer_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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