llvm/compiler-rt/lib/profile/InstrProfiling.c

/*===- InstrProfiling.c - Support library for PGO instrumentation ---------===*\
|*
|* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|* See https://llvm.org/LICENSE.txt for license information.
|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|*
\*===----------------------------------------------------------------------===*/

// Note: This is linked into the Darwin kernel, and must remain compatible
// with freestanding compilation. See `darwin_add_builtin_libraries`.

#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "InstrProfiling.h"
#include "InstrProfilingInternal.h"

#define INSTR_PROF_VALUE_PROF_DATA
#include "profile/InstrProfData.inc"

static uint32_t __llvm_profile_global_timestamp = …;

COMPILER_RT_VISIBILITY
void INSTR_PROF_PROFILE_SET_TIMESTAMP(uint64_t *Probe) { … }

COMPILER_RT_VISIBILITY uint64_t __llvm_profile_get_magic(void) { … }

COMPILER_RT_VISIBILITY void __llvm_profile_set_dumped(void) { … }

/* Return the number of bytes needed to add to SizeInBytes to make it
 *   the result a multiple of 8.
 */
COMPILER_RT_VISIBILITY uint8_t
__llvm_profile_get_num_padding_bytes(uint64_t SizeInBytes) { … }

COMPILER_RT_VISIBILITY uint64_t __llvm_profile_get_version(void) { … }

COMPILER_RT_VISIBILITY void __llvm_profile_reset_counters(void) { … }