1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
/*===- InstrProfilingBuffer.c - Write instrumentation to a memory buffer --===*\
|*
|* The LLVM Compiler Infrastructure
|*
|* This file is distributed under the University of Illinois Open Source
|* License. See LICENSE.TXT for details.
|*
\*===----------------------------------------------------------------------===*/
#include "InstrProfiling.h"
#include <string.h>
/* TODO: uint64_t __llvm_profile_get_size_for_buffer(void) */
int __llvm_profile_write_buffer(FILE *OutputFile) {
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;
/* Get rest of header data. */
const uint64_t Magic = __llvm_profile_get_magic();
const uint64_t Version = __llvm_profile_get_version();
const uint64_t CountersDelta = (uint64_t)CountersBegin;
const uint64_t NamesDelta = (uint64_t)NamesBegin;
#define CHECK_fwrite(Data, Size, Length, File) \
do { if (fwrite(Data, Size, Length, File) != Length) return -1; } while (0)
/* Write the header. */
CHECK_fwrite(&Magic, sizeof(uint64_t), 1, OutputFile);
CHECK_fwrite(&Version, sizeof(uint64_t), 1, OutputFile);
CHECK_fwrite(&DataSize, sizeof(uint64_t), 1, OutputFile);
CHECK_fwrite(&CountersSize, sizeof(uint64_t), 1, OutputFile);
CHECK_fwrite(&NamesSize, sizeof(uint64_t), 1, OutputFile);
CHECK_fwrite(&CountersDelta, sizeof(uint64_t), 1, OutputFile);
CHECK_fwrite(&NamesDelta, sizeof(uint64_t), 1, OutputFile);
/* Write the data. */
CHECK_fwrite(DataBegin, sizeof(__llvm_profile_data), DataSize, OutputFile);
CHECK_fwrite(CountersBegin, sizeof(uint64_t), CountersSize, OutputFile);
CHECK_fwrite(NamesBegin, sizeof(char), NamesSize, OutputFile);
#undef CHECK_fwrite
return 0;
}
|
