diff options
author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-03-21 18:29:15 +0000 |
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committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-03-21 18:29:15 +0000 |
commit | ad46436a217cc8a17a5bd8948cda0bd9dd6788c4 (patch) | |
tree | 69fee8a7849f75899cd3fa0e138968d0abec3ac5 /lib/profile/InstrProfiling.c | |
parent | 10692cccd92c84573854be22f01544324da328cf (diff) |
InstrProf: Reorganize files; no functionality change
Move functions around to prepare for some other changes.
- Merge InstrProfilingExtras.h with InstrProfiling.h. There's no
benefit to having these split.
- Rename InstrProfilingExtras.c to InstrProfilingFile.c.
- Split actual buffer writing code out of InstrProfiling.c into
InstrProfilingBuffer.c.
- Drive-by corrections of a couple of header comments.
<rdar://problem/15943240>
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@204497 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/profile/InstrProfiling.c')
-rw-r--r-- | lib/profile/InstrProfiling.c | 51 |
1 files changed, 4 insertions, 47 deletions
diff --git a/lib/profile/InstrProfiling.c b/lib/profile/InstrProfiling.c index a62c214c1..de88f1ba3 100644 --- a/lib/profile/InstrProfiling.c +++ b/lib/profile/InstrProfiling.c @@ -10,9 +10,8 @@ #include "InstrProfiling.h" #include <string.h> -/* TODO: void __llvm_profile_get_size_for_buffer(void); */ - -static uint64_t getMagic(void) { +uint64_t __llvm_profile_get_magic(void) { + /* Magic number to detect file format and endianness. */ return (uint64_t)'l' << 56 | (uint64_t)'p' << 48 | @@ -24,53 +23,11 @@ static uint64_t getMagic(void) { (uint64_t)'w'; } -static uint64_t getVersion(void) { +uint64_t __llvm_profile_get_version(void) { + /* This should be bumped any time the output format changes. */ return 1; } -int __llvm_profile_write_buffer(FILE *OutputFile) { - /* TODO: Requires libc: break requirement by taking a char* buffer instead of - * a FILE stream. - */ - 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 = getMagic(); - const uint64_t Version = getVersion(); - 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; -} - void __llvm_profile_reset_counters(void) { uint64_t *I = __llvm_profile_counters_begin(); uint64_t *E = __llvm_profile_counters_end(); |