\*===----------------------------------------------------------------------===*/
#include "InstrProfiling.h"
+#include "InstrProfilingInternal.h"
+
#include <string.h>
+__attribute__((visibility("hidden")))
uint64_t __llvm_profile_get_size_for_buffer(void) {
+ const __llvm_profile_data *DataBegin = __llvm_profile_begin_data();
+ const __llvm_profile_data *DataEnd = __llvm_profile_end_data();
+ const uint64_t *CountersBegin = __llvm_profile_begin_counters();
+ const uint64_t *CountersEnd = __llvm_profile_end_counters();
+ const char *NamesBegin = __llvm_profile_begin_names();
+ const char *NamesEnd = __llvm_profile_end_names();
+
+ return __llvm_profile_get_size_for_buffer_internal(
+ DataBegin, DataEnd, CountersBegin, CountersEnd, NamesBegin, NamesEnd);
+}
+
+#define PROFILE_RANGE_SIZE(Range) (Range##End - Range##Begin)
+
+__attribute__((visibility("hidden")))
+uint64_t __llvm_profile_get_size_for_buffer_internal(
+ const __llvm_profile_data *DataBegin,
+ const __llvm_profile_data *DataEnd, const uint64_t *CountersBegin,
+ const uint64_t *CountersEnd, const char *NamesBegin,
+ const char *NamesEnd) {
/* Match logic in __llvm_profile_write_buffer(). */
- return sizeof(uint64_t) * PROFILE_HEADER_SIZE +
- PROFILE_RANGE_SIZE(data) * sizeof(__llvm_profile_data) +
- PROFILE_RANGE_SIZE(counters) * sizeof(uint64_t) +
- PROFILE_RANGE_SIZE(names) * sizeof(char);
+ const uint64_t NamesSize = PROFILE_RANGE_SIZE(Names) * sizeof(char);
+ const uint64_t Padding = sizeof(uint64_t) - NamesSize % sizeof(uint64_t);
+ return sizeof(__llvm_profile_header) +
+ PROFILE_RANGE_SIZE(Data) * sizeof(__llvm_profile_data) +
+ PROFILE_RANGE_SIZE(Counters) * sizeof(uint64_t) +
+ NamesSize + Padding;
}
+__attribute__((visibility("hidden")))
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();
+ const __llvm_profile_data *DataBegin = __llvm_profile_begin_data();
+ const __llvm_profile_data *DataEnd = __llvm_profile_end_data();
+ const uint64_t *CountersBegin = __llvm_profile_begin_counters();
+ const uint64_t *CountersEnd = __llvm_profile_end_counters();
+ const char *NamesBegin = __llvm_profile_begin_names();
+ const char *NamesEnd = __llvm_profile_end_names();
+
+ return __llvm_profile_write_buffer_internal(Buffer, DataBegin, DataEnd,
+ CountersBegin, CountersEnd,
+ NamesBegin, NamesEnd);
+}
+
+__attribute__((visibility("hidden")))
+int __llvm_profile_write_buffer_internal(
+ char *Buffer, const __llvm_profile_data *DataBegin,
+ const __llvm_profile_data *DataEnd, const uint64_t *CountersBegin,
+ const uint64_t *CountersEnd, const char *NamesBegin, const char *NamesEnd) {
+ /* Match logic in __llvm_profile_get_size_for_buffer().
+ * Match logic in __llvm_profile_write_file().
+ */
/* 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;
+ __llvm_profile_header Header;
+ Header.Magic = __llvm_profile_get_magic();
+ Header.Version = __llvm_profile_get_version();
+ Header.DataSize = DataSize;
+ Header.CountersSize = CountersSize;
+ Header.NamesSize = NamesSize;
+ Header.CountersDelta = (uintptr_t)CountersBegin;
+ Header.NamesDelta = (uintptr_t)NamesBegin;
/* Write the data. */
#define UPDATE_memcpy(Data, Size) \
memcpy(Buffer, Data, Size); \
Buffer += Size; \
} while (0)
- UPDATE_memcpy(Header, PROFILE_HEADER_SIZE * sizeof(uint64_t));
+ UPDATE_memcpy(&Header, sizeof(__llvm_profile_header));
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;