1 /*===- InstrProfilingPlatformOther.c - Profile data default platform ------===*\
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
7 \*===----------------------------------------------------------------------===*/
9 #if !defined(__APPLE__) && !defined(__linux__) && !defined(__FreeBSD__) && \
10 !(defined(__sun__) && defined(__svr4__)) && !defined(__NetBSD__) && \
16 #include "InstrProfiling.h"
18 static const __llvm_profile_data *DataFirst = NULL;
19 static const __llvm_profile_data *DataLast = NULL;
20 static const char *NamesFirst = NULL;
21 static const char *NamesLast = NULL;
22 static uint64_t *CountersFirst = NULL;
23 static uint64_t *CountersLast = NULL;
24 static uint32_t *OrderFileFirst = NULL;
26 static const void *getMinAddr(const void *A1, const void *A2) {
27 return A1 < A2 ? A1 : A2;
30 static const void *getMaxAddr(const void *A1, const void *A2) {
31 return A1 > A2 ? A1 : A2;
35 * \brief Register an instrumented function.
37 * Calls to this are emitted by clang with -fprofile-instr-generate. Such
38 * calls are only required (and only emitted) on targets where we haven't
39 * implemented linker magic to find the bounds of the sections.
41 COMPILER_RT_VISIBILITY
42 void __llvm_profile_register_function(void *Data_) {
43 /* TODO: Only emit this function if we can't use linker magic. */
44 const __llvm_profile_data *Data = (__llvm_profile_data *)Data_;
48 CountersFirst = Data->CounterPtr;
49 CountersLast = (uint64_t *)Data->CounterPtr + Data->NumCounters;
53 DataFirst = (const __llvm_profile_data *)getMinAddr(DataFirst, Data);
54 CountersFirst = (uint64_t *)getMinAddr(CountersFirst, Data->CounterPtr);
56 DataLast = (const __llvm_profile_data *)getMaxAddr(DataLast, Data + 1);
57 CountersLast = (uint64_t *)getMaxAddr(
58 CountersLast, (uint64_t *)Data->CounterPtr + Data->NumCounters);
61 COMPILER_RT_VISIBILITY
62 void __llvm_profile_register_names_function(void *NamesStart,
65 NamesFirst = (const char *)NamesStart;
66 NamesLast = (const char *)NamesStart + NamesSize;
69 NamesFirst = (const char *)getMinAddr(NamesFirst, NamesStart);
71 (const char *)getMaxAddr(NamesLast, (const char *)NamesStart + NamesSize);
74 COMPILER_RT_VISIBILITY
75 const __llvm_profile_data *__llvm_profile_begin_data(void) { return DataFirst; }
76 COMPILER_RT_VISIBILITY
77 const __llvm_profile_data *__llvm_profile_end_data(void) { return DataLast; }
78 COMPILER_RT_VISIBILITY
79 const char *__llvm_profile_begin_names(void) { return NamesFirst; }
80 COMPILER_RT_VISIBILITY
81 const char *__llvm_profile_end_names(void) { return NamesLast; }
82 COMPILER_RT_VISIBILITY
83 uint64_t *__llvm_profile_begin_counters(void) { return CountersFirst; }
84 COMPILER_RT_VISIBILITY
85 uint64_t *__llvm_profile_end_counters(void) { return CountersLast; }
86 /* TODO: correctly set up OrderFileFirst. */
87 COMPILER_RT_VISIBILITY
88 uint32_t *__llvm_profile_begin_orderfile(void) { return OrderFileFirst; }
90 COMPILER_RT_VISIBILITY
91 ValueProfNode *__llvm_profile_begin_vnodes(void) {
94 COMPILER_RT_VISIBILITY
95 ValueProfNode *__llvm_profile_end_vnodes(void) { return 0; }
97 COMPILER_RT_VISIBILITY ValueProfNode *CurrentVNode = 0;
98 COMPILER_RT_VISIBILITY ValueProfNode *EndVNode = 0;