diff options
Diffstat (limited to 'compiler-rt/lib/profile/InstrProfilingWriter.c')
| -rw-r--r-- | compiler-rt/lib/profile/InstrProfilingWriter.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/compiler-rt/lib/profile/InstrProfilingWriter.c b/compiler-rt/lib/profile/InstrProfilingWriter.c index d910cbb8f2f..ae9e1fa6ac1 100644 --- a/compiler-rt/lib/profile/InstrProfilingWriter.c +++ b/compiler-rt/lib/profile/InstrProfilingWriter.c @@ -14,6 +14,7 @@ #include "InstrProfiling.h" #include "InstrProfilingInternal.h" +#include "InstrProfilingPort.h" #define INSTR_PROF_VALUE_PROF_DATA #include "InstrProfData.inc" @@ -257,10 +258,11 @@ lprofWriteDataImpl(ProfDataWriter *Writer, const __llvm_profile_data *DataBegin, const uint64_t DataSize = __llvm_profile_get_data_size(DataBegin, DataEnd); const uint64_t CountersSize = CountersEnd - CountersBegin; const uint64_t NamesSize = NamesEnd - NamesBegin; - const uint64_t Padding = __llvm_profile_get_num_padding_bytes(NamesSize); /* Enough zeroes for padding. */ - const char Zeroes[sizeof(uint64_t)] = {0}; + unsigned PageSize = getpagesize(); + char Zeroes[PageSize]; + memset(Zeroes, 0, PageSize); /* Create the header. */ __llvm_profile_header Header; @@ -268,6 +270,14 @@ lprofWriteDataImpl(ProfDataWriter *Writer, const __llvm_profile_data *DataBegin, if (!DataSize) return 0; + /* Determine how much padding is needed before/after the counters and after + * the names. */ + uint64_t PaddingBytesBeforeCounters, PaddingBytesAfterCounters, + PaddingBytesAfterNames; + __llvm_profile_get_padding_sizes_for_counters( + DataSize, CountersSize, NamesSize, &PaddingBytesBeforeCounters, + &PaddingBytesAfterCounters, &PaddingBytesAfterNames); + /* Initialize header structure. */ #define INSTR_PROF_RAW_HEADER(Type, Name, Init) Header.Name = Init; #include "InstrProfData.inc" @@ -276,11 +286,17 @@ lprofWriteDataImpl(ProfDataWriter *Writer, const __llvm_profile_data *DataBegin, ProfDataIOVec IOVec[] = { {&Header, sizeof(__llvm_profile_header), 1}, {DataBegin, sizeof(__llvm_profile_data), DataSize}, + {Zeroes, sizeof(uint8_t), PaddingBytesBeforeCounters}, {CountersBegin, sizeof(uint64_t), CountersSize}, + {Zeroes, sizeof(uint8_t), PaddingBytesAfterCounters}, {SkipNameDataWrite ? NULL : NamesBegin, sizeof(uint8_t), NamesSize}, - {Zeroes, sizeof(uint8_t), Padding}}; + {Zeroes, sizeof(uint8_t), PaddingBytesAfterNames}}; if (Writer->Write(Writer, IOVec, sizeof(IOVec) / sizeof(*IOVec))) return -1; + /* Value profiling is not yet supported in continuous mode. */ + if (__llvm_profile_is_continuous_mode_enabled()) + return 0; + return writeValueProfData(Writer, VPDataReader, DataBegin, DataEnd); } |
