xref: /freebsd-src/contrib/llvm-project/compiler-rt/lib/profile/InstrProfilingPlatformOther.c (revision 0fca6ea1d4eea4c934cfff25ac9ee8ad6fe95583)
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