diff options
Diffstat (limited to 'lib/profile/InstrProfiling.h')
| -rw-r--r-- | lib/profile/InstrProfiling.h | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/lib/profile/InstrProfiling.h b/lib/profile/InstrProfiling.h index 3ef7eacf06be..4d196a89b492 100644 --- a/lib/profile/InstrProfiling.h +++ b/lib/profile/InstrProfiling.h @@ -1,9 +1,8 @@ /*===- InstrProfiling.h- Support library for PGO instrumentation ----------===*\ |* -|* The LLVM Compiler Infrastructure -|* -|* This file is distributed under the University of Illinois Open Source -|* License. See LICENSE.TXT for details. +|* 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 |* \*===----------------------------------------------------------------------===*/ @@ -11,12 +10,13 @@ #define PROFILE_INSTRPROFILING_H_ #include "InstrProfilingPort.h" +#include <stdio.h> #define INSTR_PROF_VISIBILITY COMPILER_RT_VISIBILITY #include "InstrProfData.inc" enum ValueKind { -#define VALUE_PROF_KIND(Enumerator, Value) Enumerator = Value, +#define VALUE_PROF_KIND(Enumerator, Value, Descr) Enumerator = Value, #include "InstrProfData.inc" }; @@ -65,6 +65,7 @@ uint64_t *__llvm_profile_begin_counters(void); uint64_t *__llvm_profile_end_counters(void); ValueProfNode *__llvm_profile_begin_vnodes(); ValueProfNode *__llvm_profile_end_vnodes(); +uint32_t *__llvm_profile_begin_orderfile(); /*! * \brief Clear profile counters to zero. @@ -121,10 +122,11 @@ void __llvm_profile_instrument_target_value(uint64_t TargetValue, void *Data, */ int __llvm_profile_write_file(void); +int __llvm_orderfile_write_file(void); /*! * \brief this is a wrapper interface to \c __llvm_profile_write_file. * After this interface is invoked, a arleady dumped flag will be set - * so that profile won't be dumped again during program exit. + * so that profile won't be dumped again during program exit. * Invocation of interface __llvm_profile_reset_counters will clear * the flag. This interface is designed to be used to collect profile * data from user selected hot regions. The use model is @@ -143,6 +145,8 @@ int __llvm_profile_write_file(void); */ int __llvm_profile_dump(void); +int __llvm_orderfile_dump(void); + /*! * \brief Set the filename for writing instrumentation data. * @@ -154,6 +158,24 @@ int __llvm_profile_dump(void); */ void __llvm_profile_set_filename(const char *Name); +/*! + * \brief Set the FILE object for writing instrumentation data. + * + * Sets the FILE object to be used for subsequent calls to + * \a __llvm_profile_write_file(). The profile file name set by environment + * variable, command-line option, or calls to \a __llvm_profile_set_filename + * will be ignored. + * + * \c File will not be closed after a call to \a __llvm_profile_write_file() but + * it may be flushed. Passing NULL restores default behavior. + * + * If \c EnableMerge is nonzero, the runtime will always merge profiling data + * with the contents of the profiling file. If EnableMerge is zero, the runtime + * may still merge the data if it would have merged for another reason (for + * example, because of a %m specifier in the file name). + */ +void __llvm_profile_set_file_object(FILE *File, int EnableMerge); + /*! \brief Register to write instrumentation data to file at exit. */ int __llvm_profile_register_write_file_atexit(void); @@ -189,6 +211,14 @@ uint64_t __llvm_profile_get_data_size(const __llvm_profile_data *Begin, const __llvm_profile_data *End); /*! + * \brief Set the flag that profile data has been dumped to the file. + * This is useful for users to disable dumping profile data to the file for + * certain processes in case the processes don't have permission to write to + * the disks, and trying to do so would result in side effects such as crashes. + */ +void __llvm_profile_set_dumped(); + +/*! * This variable is defined in InstrProfilingRuntime.cc as a hidden * symbol. Its main purpose is to enable profile runtime user to * bypass runtime initialization code -- if the client code explicitly |