int __llvm_profile_write_buffer(char *Buffer) {
/* Match logic in __llvm_profile_get_size_for_buffer().
* Match logic in __llvm_profile_write_file().
*/
const __llvm_profile_data *DataBegin = __llvm_profile_data_begin();
const __llvm_profile_data *DataEnd = __llvm_profile_data_end();
const uint64_t *CountersBegin = __llvm_profile_counters_begin();
const uint64_t *CountersEnd = __llvm_profile_counters_end();
const char *NamesBegin = __llvm_profile_names_begin();
const char *NamesEnd = __llvm_profile_names_end();
/* Calculate size of sections. */
const uint64_t DataSize = DataEnd - DataBegin;
const uint64_t CountersSize = CountersEnd - CountersBegin;
const uint64_t NamesSize = NamesEnd - NamesBegin;
const uint64_t Padding = sizeof(uint64_t) - NamesSize % sizeof(uint64_t);
/* Enough zeroes for padding. */
const char Zeroes[sizeof(uint64_t)] = {0};
/* Create the header. */
uint64_t Header[PROFILE_HEADER_SIZE];
Header[0] = __llvm_profile_get_magic();
Header[1] = __llvm_profile_get_version();
Header[2] = DataSize;
Header[3] = CountersSize;
Header[4] = NamesSize;
Header[5] = (uintptr_t)CountersBegin;
Header[6] = (uintptr_t)NamesBegin;
/* Write the data. */
#define UPDATE_memcpy(Data, Size) \
do { \
memcpy(Buffer, Data, Size); \
Buffer += Size; \
} while (0)
UPDATE_memcpy(Header, PROFILE_HEADER_SIZE * sizeof(uint64_t));
UPDATE_memcpy(DataBegin, DataSize * sizeof(__llvm_profile_data));
UPDATE_memcpy(CountersBegin, CountersSize * sizeof(uint64_t));
UPDATE_memcpy(NamesBegin, NamesSize * sizeof(char));
UPDATE_memcpy(Zeroes, Padding * sizeof(char));
#undef UPDATE_memcpy
return 0;
}
int __llvm_profile_write_buffer(char *Buffer) {
/* Match logic in __llvm_profile_get_size_for_buffer().
* Match logic in __llvm_profile_write_file().
*/
const __llvm_profile_data *DataBegin = __llvm_profile_data_begin();
const __llvm_profile_data *DataEnd = __llvm_profile_data_end();
const uint64_t *CountersBegin = __llvm_profile_counters_begin();
const uint64_t *CountersEnd = __llvm_profile_counters_end();
const char *NamesBegin = __llvm_profile_names_begin();
const char *NamesEnd = __llvm_profile_names_end();
/* Calculate size of sections. */
const uint64_t DataSize = DataEnd - DataBegin;
const uint64_t CountersSize = CountersEnd - CountersBegin;
const uint64_t NamesSize = NamesEnd - NamesBegin;
/* Create the header. */
uint64_t Header[PROFILE_HEADER_SIZE] = {
__llvm_profile_get_magic(),
__llvm_profile_get_version(),
DataSize,
CountersSize,
NamesSize,
(uintptr_t)CountersBegin,
(uintptr_t)NamesBegin
};
/* Write the data. */
#define UPDATE_memcpy(Data, Size) \
do { \
memcpy(Buffer, Data, Size); \
Buffer += Size; \
} while (0)
UPDATE_memcpy(Header, PROFILE_HEADER_SIZE * sizeof(uint64_t));
UPDATE_memcpy(DataBegin, DataSize * sizeof(__llvm_profile_data));
UPDATE_memcpy(CountersBegin, CountersSize * sizeof(uint64_t));
UPDATE_memcpy(NamesBegin, NamesSize * sizeof(char));
#undef UPDATE_memcpy
return 0;
}