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/*===- InstrProfilingDefault.c - Profile data default platfrom ------------===*\
|*
|* The LLVM Compiler Infrastructure
|*
|* This file is distributed under the University of Illinois Open Source
|* License. See LICENSE.TXT for details.
|*
\*===----------------------------------------------------------------------===*/
#include "InstrProfiling.h"
static const __llvm_pgo_data *DataFirst = NULL;
static const __llvm_pgo_data *DataLast = NULL;
static const char *NamesFirst = NULL;
static const char *NamesLast = NULL;
static const uint64_t *CountersFirst = NULL;
static const uint64_t *CountersLast = NULL;
/*!
* \brief Register an instrumented function.
*
* Calls to this are emitted by clang with -fprofile-instr-generate. Such
* calls are only required (and only emitted) on targets where we haven't
* implemented linker magic to find the bounds of the sections.
*/
void __llvm_pgo_register_function(void *Data_) {
/* TODO: Only emit this function if we can't use linker magic. */
const __llvm_pgo_data *Data = (__llvm_pgo_data*)Data_;
if (!DataFirst) {
DataFirst = Data;
DataLast = Data + 1;
NamesFirst = Data->Name;
NamesLast = Data->Name + Data->NameSize;
CountersFirst = Data->Counters;
CountersLast = Data->Counters + Data->NumCounters;
return;
}
#define UPDATE_FIRST(First, New) \
First = New < First ? New : First
UPDATE_FIRST(DataFirst, Data);
UPDATE_FIRST(NamesFirst, Data->Name);
UPDATE_FIRST(CountersFirst, Data->Counters);
#undef UPDATE_FIRST
#define UPDATE_LAST(Last, New) \
Last = New > Last ? New : Last
UPDATE_LAST(DataLast, Data + 1);
UPDATE_LAST(NamesLast, Data->Name + Data->NameSize);
UPDATE_LAST(CountersLast, Data->Counters + Data->NumCounters);
#undef UPDATE_LAST
}
const __llvm_pgo_data *__llvm_pgo_data_begin() { return DataFirst; }
const __llvm_pgo_data *__llvm_pgo_data_end() { return DataLast; }
const char *__llvm_pgo_names_begin() { return NamesFirst; }
const char *__llvm_pgo_names_end() { return NamesLast; }
const uint64_t *__llvm_pgo_counters_begin() { return CountersFirst; }
const uint64_t *__llvm_pgo_counters_end() { return CountersLast; }
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