| /*===- InstrProfilingPlatformOther.c - Profile data default platform ------===*\ |
| |* |
| |* The LLVM Compiler Infrastructure |
| |* |
| |* This file is distributed under the University of Illinois Open Source |
| |* License. See LICENSE.TXT for details. |
| |* |
| \*===----------------------------------------------------------------------===*/ |
| |
| #include "InstrProfiling.h" |
| |
| #if !defined(__APPLE__) |
| #include <stdlib.h> |
| |
| static const __llvm_profile_data *DataFirst = NULL; |
| static const __llvm_profile_data *DataLast = NULL; |
| static const char *NamesFirst = NULL; |
| static const char *NamesLast = NULL; |
| static uint64_t *CountersFirst = NULL; |
| static 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. |
| */ |
| __attribute__((visibility("hidden"))) |
| void __llvm_profile_register_function(void *Data_) { |
| /* TODO: Only emit this function if we can't use linker magic. */ |
| const __llvm_profile_data *Data = (__llvm_profile_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 |
| } |
| |
| __attribute__((visibility("hidden"))) |
| const __llvm_profile_data *__llvm_profile_begin_data(void) { |
| return DataFirst; |
| } |
| __attribute__((visibility("hidden"))) |
| const __llvm_profile_data *__llvm_profile_end_data(void) { |
| return DataLast; |
| } |
| __attribute__((visibility("hidden"))) |
| const char *__llvm_profile_begin_names(void) { return NamesFirst; } |
| __attribute__((visibility("hidden"))) |
| const char *__llvm_profile_end_names(void) { return NamesLast; } |
| __attribute__((visibility("hidden"))) |
| uint64_t *__llvm_profile_begin_counters(void) { return CountersFirst; } |
| __attribute__((visibility("hidden"))) |
| uint64_t *__llvm_profile_end_counters(void) { return CountersLast; } |
| #endif |