forked from OSchip/llvm-project
95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
/*===- InstrProfilingPlatformOther.c - Profile data default platform ------===*\
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|*
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|* The LLVM Compiler Infrastructure
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|*
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|* This file is distributed under the University of Illinois Open Source
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|* License. See LICENSE.TXT for details.
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|*
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\*===----------------------------------------------------------------------===*/
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#include "InstrProfiling.h"
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#if !defined(__APPLE__) && !defined(__linux__) && !defined(__FreeBSD__)
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#include <stdlib.h>
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static const __llvm_profile_data *DataFirst = NULL;
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static const __llvm_profile_data *DataLast = NULL;
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static const char *NamesFirst = NULL;
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static const char *NamesLast = NULL;
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static uint64_t *CountersFirst = NULL;
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static uint64_t *CountersLast = NULL;
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static const void *getMinAddr(const void *A1, const void *A2) {
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return A1 < A2 ? A1 : A2;
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}
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static const void *getMaxAddr(const void *A1, const void *A2) {
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return A1 > A2 ? A1 : A2;
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}
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/*!
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* \brief Register an instrumented function.
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*
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* Calls to this are emitted by clang with -fprofile-instr-generate. Such
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* calls are only required (and only emitted) on targets where we haven't
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* implemented linker magic to find the bounds of the sections.
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*/
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COMPILER_RT_VISIBILITY
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void __llvm_profile_register_function(void *Data_) {
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/* TODO: Only emit this function if we can't use linker magic. */
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const __llvm_profile_data *Data = (__llvm_profile_data *)Data_;
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if (!DataFirst) {
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DataFirst = Data;
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DataLast = Data + 1;
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CountersFirst = Data->CounterPtr;
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CountersLast = (uint64_t *)Data->CounterPtr + Data->NumCounters;
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return;
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}
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DataFirst = (const __llvm_profile_data *)getMinAddr(DataFirst, Data);
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CountersFirst = (uint64_t *)getMinAddr(CountersFirst, Data->CounterPtr);
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DataLast = (const __llvm_profile_data *)getMaxAddr(DataLast, Data + 1);
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CountersLast = (uint64_t *)getMaxAddr(
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CountersLast, (uint64_t *)Data->CounterPtr + Data->NumCounters);
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}
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COMPILER_RT_VISIBILITY
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void __llvm_profile_register_names_function(void *NamesStart,
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uint64_t NamesSize) {
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if (!NamesFirst) {
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NamesFirst = (const char *)NamesStart;
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NamesLast = (const char *)NamesStart + NamesSize;
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return;
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}
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NamesFirst = (const char *)getMinAddr(NamesFirst, NamesStart);
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NamesLast =
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(const char *)getMaxAddr(NamesLast, (const char *)NamesStart + NamesSize);
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}
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COMPILER_RT_VISIBILITY
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const __llvm_profile_data *__llvm_profile_begin_data(void) { return DataFirst; }
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COMPILER_RT_VISIBILITY
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const __llvm_profile_data *__llvm_profile_end_data(void) { return DataLast; }
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COMPILER_RT_VISIBILITY
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const char *__llvm_profile_begin_names(void) { return NamesFirst; }
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COMPILER_RT_VISIBILITY
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const char *__llvm_profile_end_names(void) { return NamesLast; }
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COMPILER_RT_VISIBILITY
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uint64_t *__llvm_profile_begin_counters(void) { return CountersFirst; }
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COMPILER_RT_VISIBILITY
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uint64_t *__llvm_profile_end_counters(void) { return CountersLast; }
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COMPILER_RT_VISIBILITY
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ValueProfNode *__llvm_profile_begin_vnodes(void) {
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return 0;
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}
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COMPILER_RT_VISIBILITY
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ValueProfNode *__llvm_profile_end_vnodes(void) { return 0; }
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COMPILER_RT_VISIBILITY ValueProfNode *CurrentVNode = 0;
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COMPILER_RT_VISIBILITY ValueProfNode *EndVNode = 0;
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#endif
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