1/*===- InstrProfilingPlatformOther.c - Profile data default platform ------===*\ 2|* 3|* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4|* See https://llvm.org/LICENSE.txt for license information. 5|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6|* 7\*===----------------------------------------------------------------------===*/ 8 9#if !defined(__APPLE__) && !defined(__linux__) && !defined(__FreeBSD__) && \ 10 !defined(__Fuchsia__) && !(defined(__sun__) && defined(__svr4__)) && \ 11 !defined(__NetBSD__) && !defined(_WIN32) && !defined(_AIX) 12 13#include <stdlib.h> 14#include <stdio.h> 15 16#include "InstrProfiling.h" 17#include "InstrProfilingInternal.h" 18 19static const __llvm_profile_data *DataFirst = NULL; 20static const __llvm_profile_data *DataLast = NULL; 21static const char *NamesFirst = NULL; 22static const char *NamesLast = NULL; 23static char *CountersFirst = NULL; 24static char *CountersLast = NULL; 25static uint32_t *OrderFileFirst = NULL; 26 27static const void *getMinAddr(const void *A1, const void *A2) { 28 return A1 < A2 ? A1 : A2; 29} 30 31static const void *getMaxAddr(const void *A1, const void *A2) { 32 return A1 > A2 ? A1 : A2; 33} 34 35/*! 36 * \brief Register an instrumented function. 37 * 38 * Calls to this are emitted by clang with -fprofile-instr-generate. Such 39 * calls are only required (and only emitted) on targets where we haven't 40 * implemented linker magic to find the bounds of the sections. 41 */ 42COMPILER_RT_VISIBILITY 43void __llvm_profile_register_function(void *Data_) { 44 /* TODO: Only emit this function if we can't use linker magic. */ 45 const __llvm_profile_data *Data = (__llvm_profile_data *)Data_; 46 if (!DataFirst) { 47 DataFirst = Data; 48 DataLast = Data + 1; 49 CountersFirst = (char *)((uintptr_t)Data_ + Data->CounterPtr); 50 CountersLast = 51 CountersFirst + Data->NumCounters * __llvm_profile_counter_entry_size(); 52 return; 53 } 54 55 DataFirst = (const __llvm_profile_data *)getMinAddr(DataFirst, Data); 56 CountersFirst = (char *)getMinAddr( 57 CountersFirst, (char *)((uintptr_t)Data_ + Data->CounterPtr)); 58 59 DataLast = (const __llvm_profile_data *)getMaxAddr(DataLast, Data + 1); 60 CountersLast = (char *)getMaxAddr( 61 CountersLast, 62 (char *)((uintptr_t)Data_ + Data->CounterPtr) + 63 Data->NumCounters * __llvm_profile_counter_entry_size()); 64} 65 66COMPILER_RT_VISIBILITY 67void __llvm_profile_register_names_function(void *NamesStart, 68 uint64_t NamesSize) { 69 if (!NamesFirst) { 70 NamesFirst = (const char *)NamesStart; 71 NamesLast = (const char *)NamesStart + NamesSize; 72 return; 73 } 74 NamesFirst = (const char *)getMinAddr(NamesFirst, NamesStart); 75 NamesLast = 76 (const char *)getMaxAddr(NamesLast, (const char *)NamesStart + NamesSize); 77} 78 79COMPILER_RT_VISIBILITY 80const __llvm_profile_data *__llvm_profile_begin_data(void) { return DataFirst; } 81COMPILER_RT_VISIBILITY 82const __llvm_profile_data *__llvm_profile_end_data(void) { return DataLast; } 83COMPILER_RT_VISIBILITY 84const char *__llvm_profile_begin_names(void) { return NamesFirst; } 85COMPILER_RT_VISIBILITY 86const char *__llvm_profile_end_names(void) { return NamesLast; } 87COMPILER_RT_VISIBILITY 88char *__llvm_profile_begin_counters(void) { return CountersFirst; } 89COMPILER_RT_VISIBILITY 90char *__llvm_profile_end_counters(void) { return CountersLast; } 91COMPILER_RT_VISIBILITY 92char *__llvm_profile_begin_bitmap(void) { return BitmapFirst; } 93COMPILER_RT_VISIBILITY 94char *__llvm_profile_end_bitmap(void) { return BitmapLast; } 95/* TODO: correctly set up OrderFileFirst. */ 96COMPILER_RT_VISIBILITY 97uint32_t *__llvm_profile_begin_orderfile(void) { return OrderFileFirst; } 98 99COMPILER_RT_VISIBILITY 100ValueProfNode *__llvm_profile_begin_vnodes(void) { 101 return 0; 102} 103COMPILER_RT_VISIBILITY 104ValueProfNode *__llvm_profile_end_vnodes(void) { return 0; } 105 106COMPILER_RT_VISIBILITY ValueProfNode *CurrentVNode = 0; 107COMPILER_RT_VISIBILITY ValueProfNode *EndVNode = 0; 108 109COMPILER_RT_VISIBILITY int __llvm_write_binary_ids(ProfDataWriter *Writer) { 110 return 0; 111} 112 113#endif 114