1 /*===- InstrProfilingWriter.c - Write instrumentation to a file or buffer -===*\
5 |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 \*===----------------------------------------------------------------------===*/
42   char **Buffer = (char **)&This->WriterCtx;  in lprofBufferWriter()
45     if (IOVecs[I].Data)  in lprofBufferWriter()
46       memcpy(*Buffer, IOVecs[I].Data, Length);  in lprofBufferWriter()
57   BufferIO->FileWriter = FileWriter;  in llvmInitBufferIO()
58   BufferIO->OwnFileWriter = 0;  in llvmInitBufferIO()
59   BufferIO->BufferStart = Buffer;  in llvmInitBufferIO()
60   BufferIO->BufferSz = BufferSz;  in llvmInitBufferIO()
61   BufferIO->CurOffset = 0;  in llvmInitBufferIO()
77   if (BufferIO->OwnFileWriter)  in lprofDeleteBufferIO()
78     FreeHook(BufferIO->FileWriter);  in lprofDeleteBufferIO()
87 lprofBufferIOWrite(ProfBufferIO *BufferIO, const uint8_t *Data, uint32_t Size) {  in lprofBufferIOWrite()  argument
89   if (Size + BufferIO->CurOffset > BufferIO->BufferSz) {  in lprofBufferIOWrite()
91       return -1;  in lprofBufferIOWrite()
94   ProfDataIOVec IO[] = {{Data, sizeof(uint8_t), Size, 0}};  in lprofBufferIOWrite()
95   if (Size > BufferIO->BufferSz) {  in lprofBufferIOWrite()
96     if (BufferIO->FileWriter->Write(BufferIO->FileWriter, IO, 1))  in lprofBufferIOWrite()
97       return -1;  in lprofBufferIOWrite()
99     /* Write the data to buffer */  in lprofBufferIOWrite()
100     uint8_t *Buffer = BufferIO->BufferStart + BufferIO->CurOffset;  in lprofBufferIOWrite()
104     BufferIO->CurOffset =  in lprofBufferIOWrite()
105         (uint8_t *)BufferWriter.WriterCtx - BufferIO->BufferStart;  in lprofBufferIOWrite()
111   if (BufferIO->CurOffset) {  in lprofBufferIOFlush()
113         {BufferIO->BufferStart, sizeof(uint8_t), BufferIO->CurOffset, 0}};  in lprofBufferIOFlush()
114     if (BufferIO->FileWriter->Write(BufferIO->FileWriter, IO, 1))  in lprofBufferIOFlush()
115       return -1;  in lprofBufferIOFlush()
116     BufferIO->CurOffset = 0;  in lprofBufferIOFlush()
121 /* Write out value profile data for function specified with \c Data.
124  * value profile data is written out to \c BufferIO piecemeal.
128                                  const __llvm_profile_data *Data) {  in writeOneValueProfData()  argument
134     if (!Data->NumValueSites[I])  in writeOneValueProfData()
138           VPDataReader->GetValueProfRecordHeaderSize(Data->NumValueSites[I]) -  in writeOneValueProfData()
147   /* If NumValueKinds returned is 0, there is nothing to write, report  in writeOneValueProfData()
149   if (!(NumValueKinds = VPDataReader->InitRTRecord(Data, SiteCountArray)))  in writeOneValueProfData()
152   /* First write the header structure. */  in writeOneValueProfData()
153   VPHeader.TotalSize = VPDataReader->GetValueProfDataSize();  in writeOneValueProfData()
157     return -1;  in writeOneValueProfData()
161   if ((void *)VPDataReader->GetFirstValueProfRecord(&VPHeader) !=  in writeOneValueProfData()
163     return -1;  in writeOneValueProfData()
165   /* Write out the value profile record for each value kind  in writeOneValueProfData()
175     if (!Data->NumValueSites[I])  in writeOneValueProfData()
178     /* Write out the record header.  */  in writeOneValueProfData()
180     RecordHeader.NumValueSites = Data->NumValueSites[I];  in writeOneValueProfData()
183       return -1;  in writeOneValueProfData()
185     /* Write out the site value count array including padding space. */  in writeOneValueProfData()
187         VPDataReader->GetValueProfRecordHeaderSize(Data->NumValueSites[I]) -  in writeOneValueProfData()
190       return -1;  in writeOneValueProfData()
192     /* Write out the value profile data for each value site.  */  in writeOneValueProfData()
193     for (J = 0; J < Data->NumValueSites[I]; J++) {  in writeOneValueProfData()
196       NRemain = VPDataReader->GetNumValueDataForSite(I, J);  in writeOneValueProfData()
199       /* Read and write out value data in small chunks till it is done. */  in writeOneValueProfData()
203             VPDataReader->GetValueData(I, /* ValueKind */  in writeOneValueProfData()
208           return -1;  in writeOneValueProfData()
209         NRemain -= NRead;  in writeOneValueProfData()
231       return -1;  in writeValueProfData()
235     return -1;  in writeValueProfData()
303           &PaddingBytesAfterVNames) == -1)  in lprofWriteDataImpl()
304     return -1;  in lprofWriteDataImpl()
312   /* On WIN64, label differences are truncated 32-bit values. Truncate  in lprofWriteDataImpl()
319   /* The data and names sections are omitted in lightweight mode. */  in lprofWriteDataImpl()
325   /* Write the profile header. */  in lprofWriteDataImpl()
327   if (Writer->Write(Writer, IOVec, sizeof(IOVec) / sizeof(*IOVec)))  in lprofWriteDataImpl()
328     return -1;  in lprofWriteDataImpl()
330   /* Write the binary id lengths and data. */  in lprofWriteDataImpl()
331   if (__llvm_write_binary_ids(Writer) == -1)  in lprofWriteDataImpl()
332     return -1;  in lprofWriteDataImpl()
334   /* Write the profile data. */  in lprofWriteDataImpl()
348   if (Writer->Write(Writer, IOVecData, sizeof(IOVecData) / sizeof(*IOVecData)))  in lprofWriteDataImpl()
349     return -1;  in lprofWriteDataImpl()
361  * Write binary id length and then its data, because binary id does not
373   if (Writer->Write(Writer, BinaryIdIOVec,  in lprofWriteOneBinaryId()
375     return -1;  in lprofWriteOneBinaryId()