1 /*===- InstrProfilingBuffer.c - Write instrumentation to a memory buffer --===*\ 2 |* 3 |* The LLVM Compiler Infrastructure 4 |* 5 |* This file is distributed under the University of Illinois Open Source 6 |* License. See LICENSE.TXT for details. 7 |* 8 \*===----------------------------------------------------------------------===*/ 9 10 #include "InstrProfiling.h" 11 #include "InstrProfilingInternal.h" 12 13 COMPILER_RT_VISIBILITY 14 uint64_t __llvm_profile_get_size_for_buffer(void) { 15 const __llvm_profile_data *DataBegin = __llvm_profile_begin_data(); 16 const __llvm_profile_data *DataEnd = __llvm_profile_end_data(); 17 const uint64_t *CountersBegin = __llvm_profile_begin_counters(); 18 const uint64_t *CountersEnd = __llvm_profile_end_counters(); 19 const char *NamesBegin = __llvm_profile_begin_names(); 20 const char *NamesEnd = __llvm_profile_end_names(); 21 22 return __llvm_profile_get_size_for_buffer_internal( 23 DataBegin, DataEnd, CountersBegin, CountersEnd, NamesBegin, NamesEnd); 24 } 25 26 COMPILER_RT_VISIBILITY 27 uint64_t __llvm_profile_get_data_size(const __llvm_profile_data *Begin, 28 const __llvm_profile_data *End) { 29 intptr_t BeginI = (intptr_t)Begin, EndI = (intptr_t)End; 30 return ((EndI + sizeof(__llvm_profile_data) - 1) - BeginI) / 31 sizeof(__llvm_profile_data); 32 } 33 34 COMPILER_RT_VISIBILITY 35 uint64_t __llvm_profile_get_size_for_buffer_internal( 36 const __llvm_profile_data *DataBegin, const __llvm_profile_data *DataEnd, 37 const uint64_t *CountersBegin, const uint64_t *CountersEnd, 38 const char *NamesBegin, const char *NamesEnd) { 39 /* Match logic in __llvm_profile_write_buffer(). */ 40 const uint64_t NamesSize = (NamesEnd - NamesBegin) * sizeof(char); 41 const uint8_t Padding = __llvm_profile_get_num_padding_bytes(NamesSize); 42 return sizeof(__llvm_profile_header) + 43 (__llvm_profile_get_data_size(DataBegin, DataEnd) * 44 sizeof(__llvm_profile_data)) + 45 (CountersEnd - CountersBegin) * sizeof(uint64_t) + NamesSize + Padding; 46 } 47 48 COMPILER_RT_VISIBILITY int __llvm_profile_write_buffer(char *Buffer) { 49 return lprofWriteData(lprofBufferWriter, Buffer, 0); 50 } 51 52 COMPILER_RT_VISIBILITY int __llvm_profile_write_buffer_internal( 53 char *Buffer, const __llvm_profile_data *DataBegin, 54 const __llvm_profile_data *DataEnd, const uint64_t *CountersBegin, 55 const uint64_t *CountersEnd, const char *NamesBegin, const char *NamesEnd) { 56 return lprofWriteDataImpl(lprofBufferWriter, Buffer, DataBegin, DataEnd, 57 CountersBegin, CountersEnd, 0, NamesBegin, 58 NamesEnd); 59 } 60
