10b57cec5SDimitry Andric /*===- InstrProfilingPlatformOther.c - Profile data default platform ------===*\ 20b57cec5SDimitry Andric |* 30b57cec5SDimitry Andric |* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric |* See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric |* 70b57cec5SDimitry Andric \*===----------------------------------------------------------------------===*/ 80b57cec5SDimitry Andric 90b57cec5SDimitry Andric #if !defined(__APPLE__) && !defined(__linux__) && !defined(__FreeBSD__) && \ 1081ad6265SDimitry Andric !defined(__Fuchsia__) && !(defined(__sun__) && defined(__svr4__)) && \ 1181ad6265SDimitry Andric !defined(__NetBSD__) && !defined(_WIN32) && !defined(_AIX) 120b57cec5SDimitry Andric 130b57cec5SDimitry Andric #include <stdlib.h> 140b57cec5SDimitry Andric #include <stdio.h> 150b57cec5SDimitry Andric 160b57cec5SDimitry Andric #include "InstrProfiling.h" 17fe6060f1SDimitry Andric #include "InstrProfilingInternal.h" 180b57cec5SDimitry Andric 190b57cec5SDimitry Andric static const __llvm_profile_data *DataFirst = NULL; 200b57cec5SDimitry Andric static const __llvm_profile_data *DataLast = NULL; 21*0fca6ea1SDimitry Andric static const VTableProfData *VTableProfDataFirst = NULL; 22*0fca6ea1SDimitry Andric static const VTableProfData *VTableProfDataLast = NULL; 230b57cec5SDimitry Andric static const char *NamesFirst = NULL; 240b57cec5SDimitry Andric static const char *NamesLast = NULL; 25*0fca6ea1SDimitry Andric static const char *VNamesFirst = NULL; 26*0fca6ea1SDimitry Andric static const char *VNamesLast = NULL; 2704eeddc0SDimitry Andric static char *CountersFirst = NULL; 2804eeddc0SDimitry Andric static char *CountersLast = NULL; 290b57cec5SDimitry Andric static uint32_t *OrderFileFirst = NULL; 300b57cec5SDimitry Andric 310b57cec5SDimitry Andric static const void *getMinAddr(const void *A1, const void *A2) { 320b57cec5SDimitry Andric return A1 < A2 ? A1 : A2; 330b57cec5SDimitry Andric } 340b57cec5SDimitry Andric 350b57cec5SDimitry Andric static const void *getMaxAddr(const void *A1, const void *A2) { 360b57cec5SDimitry Andric return A1 > A2 ? A1 : A2; 370b57cec5SDimitry Andric } 380b57cec5SDimitry Andric 390b57cec5SDimitry Andric /*! 400b57cec5SDimitry Andric * \brief Register an instrumented function. 410b57cec5SDimitry Andric * 420b57cec5SDimitry Andric * Calls to this are emitted by clang with -fprofile-instr-generate. Such 430b57cec5SDimitry Andric * calls are only required (and only emitted) on targets where we haven't 440b57cec5SDimitry Andric * implemented linker magic to find the bounds of the sections. 450b57cec5SDimitry Andric */ 460b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 470b57cec5SDimitry Andric void __llvm_profile_register_function(void *Data_) { 480b57cec5SDimitry Andric /* TODO: Only emit this function if we can't use linker magic. */ 490b57cec5SDimitry Andric const __llvm_profile_data *Data = (__llvm_profile_data *)Data_; 500b57cec5SDimitry Andric if (!DataFirst) { 510b57cec5SDimitry Andric DataFirst = Data; 520b57cec5SDimitry Andric DataLast = Data + 1; 5304eeddc0SDimitry Andric CountersFirst = (char *)((uintptr_t)Data_ + Data->CounterPtr); 5404eeddc0SDimitry Andric CountersLast = 5504eeddc0SDimitry Andric CountersFirst + Data->NumCounters * __llvm_profile_counter_entry_size(); 560b57cec5SDimitry Andric return; 570b57cec5SDimitry Andric } 580b57cec5SDimitry Andric 590b57cec5SDimitry Andric DataFirst = (const __llvm_profile_data *)getMinAddr(DataFirst, Data); 6004eeddc0SDimitry Andric CountersFirst = (char *)getMinAddr( 6104eeddc0SDimitry Andric CountersFirst, (char *)((uintptr_t)Data_ + Data->CounterPtr)); 620b57cec5SDimitry Andric 630b57cec5SDimitry Andric DataLast = (const __llvm_profile_data *)getMaxAddr(DataLast, Data + 1); 6404eeddc0SDimitry Andric CountersLast = (char *)getMaxAddr( 65349cc55cSDimitry Andric CountersLast, 6604eeddc0SDimitry Andric (char *)((uintptr_t)Data_ + Data->CounterPtr) + 6704eeddc0SDimitry Andric Data->NumCounters * __llvm_profile_counter_entry_size()); 680b57cec5SDimitry Andric } 690b57cec5SDimitry Andric 700b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 710b57cec5SDimitry Andric void __llvm_profile_register_names_function(void *NamesStart, 720b57cec5SDimitry Andric uint64_t NamesSize) { 730b57cec5SDimitry Andric if (!NamesFirst) { 740b57cec5SDimitry Andric NamesFirst = (const char *)NamesStart; 750b57cec5SDimitry Andric NamesLast = (const char *)NamesStart + NamesSize; 760b57cec5SDimitry Andric return; 770b57cec5SDimitry Andric } 780b57cec5SDimitry Andric NamesFirst = (const char *)getMinAddr(NamesFirst, NamesStart); 790b57cec5SDimitry Andric NamesLast = 800b57cec5SDimitry Andric (const char *)getMaxAddr(NamesLast, (const char *)NamesStart + NamesSize); 810b57cec5SDimitry Andric } 820b57cec5SDimitry Andric 830b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 840b57cec5SDimitry Andric const __llvm_profile_data *__llvm_profile_begin_data(void) { return DataFirst; } 850b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 860b57cec5SDimitry Andric const __llvm_profile_data *__llvm_profile_end_data(void) { return DataLast; } 87*0fca6ea1SDimitry Andric COMPILER_RT_VISIBILITY const VTableProfData * 88*0fca6ea1SDimitry Andric __llvm_profile_begin_vtables(void) { 89*0fca6ea1SDimitry Andric return VTableProfDataFirst; 90*0fca6ea1SDimitry Andric } 91*0fca6ea1SDimitry Andric COMPILER_RT_VISIBILITY const VTableProfData *__llvm_profile_end_vtables(void) { 92*0fca6ea1SDimitry Andric return VTableProfDataLast; 93*0fca6ea1SDimitry Andric } 940b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 950b57cec5SDimitry Andric const char *__llvm_profile_begin_names(void) { return NamesFirst; } 960b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 970b57cec5SDimitry Andric const char *__llvm_profile_end_names(void) { return NamesLast; } 980b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 99*0fca6ea1SDimitry Andric const char *__llvm_profile_begin_vtabnames(void) { return VNamesFirst; } 100*0fca6ea1SDimitry Andric COMPILER_RT_VISIBILITY 101*0fca6ea1SDimitry Andric const char *__llvm_profile_end_vtabnames(void) { return VNamesLast; } 102*0fca6ea1SDimitry Andric COMPILER_RT_VISIBILITY 10304eeddc0SDimitry Andric char *__llvm_profile_begin_counters(void) { return CountersFirst; } 1040b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 10504eeddc0SDimitry Andric char *__llvm_profile_end_counters(void) { return CountersLast; } 1065f757f3fSDimitry Andric COMPILER_RT_VISIBILITY 1075f757f3fSDimitry Andric char *__llvm_profile_begin_bitmap(void) { return BitmapFirst; } 1085f757f3fSDimitry Andric COMPILER_RT_VISIBILITY 1095f757f3fSDimitry Andric char *__llvm_profile_end_bitmap(void) { return BitmapLast; } 1100b57cec5SDimitry Andric /* TODO: correctly set up OrderFileFirst. */ 1110b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 1120b57cec5SDimitry Andric uint32_t *__llvm_profile_begin_orderfile(void) { return OrderFileFirst; } 1130b57cec5SDimitry Andric 1140b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 1150b57cec5SDimitry Andric ValueProfNode *__llvm_profile_begin_vnodes(void) { 1160b57cec5SDimitry Andric return 0; 1170b57cec5SDimitry Andric } 1180b57cec5SDimitry Andric COMPILER_RT_VISIBILITY 1190b57cec5SDimitry Andric ValueProfNode *__llvm_profile_end_vnodes(void) { return 0; } 1200b57cec5SDimitry Andric 1210b57cec5SDimitry Andric COMPILER_RT_VISIBILITY ValueProfNode *CurrentVNode = 0; 1220b57cec5SDimitry Andric COMPILER_RT_VISIBILITY ValueProfNode *EndVNode = 0; 1230b57cec5SDimitry Andric 124fe6060f1SDimitry Andric COMPILER_RT_VISIBILITY int __llvm_write_binary_ids(ProfDataWriter *Writer) { 125fe6060f1SDimitry Andric return 0; 126fe6060f1SDimitry Andric } 127fe6060f1SDimitry Andric 1280b57cec5SDimitry Andric #endif 129