1 /*===- InstrProfilingPlatformOther.c - Profile data default platform ------===*\
3 |* The LLVM Compiler Infrastructure
5 |* This file is distributed under the University of Illinois Open Source
6 |* License. See LICENSE.TXT for details.
8 \*===----------------------------------------------------------------------===*/
10 #include "InstrProfiling.h"
12 #if !defined(__APPLE__) && !defined(__linux__) && !defined(__FreeBSD__)
15 static const __llvm_profile_data *DataFirst = NULL;
16 static const __llvm_profile_data *DataLast = NULL;
17 static const char *NamesFirst = NULL;
18 static const char *NamesLast = NULL;
19 static uint64_t *CountersFirst = NULL;
20 static uint64_t *CountersLast = NULL;
23 * \brief Register an instrumented function.
25 * Calls to this are emitted by clang with -fprofile-instr-generate. Such
26 * calls are only required (and only emitted) on targets where we haven't
27 * implemented linker magic to find the bounds of the sections.
29 COMPILER_RT_VISIBILITY
30 void __llvm_profile_register_function(void *Data_) {
31 /* TODO: Only emit this function if we can't use linker magic. */
32 const __llvm_profile_data *Data = (__llvm_profile_data *)Data_;
36 NamesFirst = Data->NamePtr;
37 NamesLast = (const char *)Data->NamePtr + Data->NameSize;
38 CountersFirst = Data->CounterPtr;
39 CountersLast = (uint64_t *)Data->CounterPtr + Data->NumCounters;
43 #define UPDATE_FIRST(First, New) First = New < First ? New : First
44 UPDATE_FIRST(DataFirst, Data);
45 UPDATE_FIRST(NamesFirst, (const char *)Data->NamePtr);
46 UPDATE_FIRST(CountersFirst, (uint64_t *)Data->CounterPtr);
49 #define UPDATE_LAST(Last, New) Last = New > Last ? New : Last
50 UPDATE_LAST(DataLast, Data + 1);
51 UPDATE_LAST(NamesLast, (const char *)Data->NamePtr + Data->NameSize);
52 UPDATE_LAST(CountersLast, (uint64_t *)Data->CounterPtr + Data->NumCounters);
56 COMPILER_RT_VISIBILITY
57 const __llvm_profile_data *__llvm_profile_begin_data(void) { return DataFirst; }
58 COMPILER_RT_VISIBILITY
59 const __llvm_profile_data *__llvm_profile_end_data(void) { return DataLast; }
60 COMPILER_RT_VISIBILITY
61 const char *__llvm_profile_begin_names(void) { return NamesFirst; }
62 COMPILER_RT_VISIBILITY
63 const char *__llvm_profile_end_names(void) { return NamesLast; }
64 COMPILER_RT_VISIBILITY
65 uint64_t *__llvm_profile_begin_counters(void) { return CountersFirst; }
66 COMPILER_RT_VISIBILITY
67 uint64_t *__llvm_profile_end_counters(void) { return CountersLast; }