1 /*===- InstrProfilingPlatformDarwin.c - Profile data on Darwin ------------===*\
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__)
13 /* Use linker magic to find the bounds of the Data section. */
14 COMPILER_RT_VISIBILITY
15 extern __llvm_profile_data
16 DataStart __asm("section$start$__DATA$" INSTR_PROF_DATA_SECT_NAME_STR);
17 COMPILER_RT_VISIBILITY
18 extern __llvm_profile_data
19 DataEnd __asm("section$end$__DATA$" INSTR_PROF_DATA_SECT_NAME_STR);
20 COMPILER_RT_VISIBILITY
22 NamesStart __asm("section$start$__DATA$" INSTR_PROF_NAME_SECT_NAME_STR);
23 COMPILER_RT_VISIBILITY
24 extern char NamesEnd __asm("section$end$__DATA$" INSTR_PROF_NAME_SECT_NAME_STR);
25 COMPILER_RT_VISIBILITY
27 CountersStart __asm("section$start$__DATA$" INSTR_PROF_CNTS_SECT_NAME_STR);
28 COMPILER_RT_VISIBILITY
30 CountersEnd __asm("section$end$__DATA$" INSTR_PROF_CNTS_SECT_NAME_STR);
32 COMPILER_RT_VISIBILITY
34 VNodesStart __asm("section$start$__DATA$" INSTR_PROF_VNODES_SECT_NAME_STR);
35 COMPILER_RT_VISIBILITY
37 VNodesEnd __asm("section$end$__DATA$" INSTR_PROF_VNODES_SECT_NAME_STR);
39 COMPILER_RT_VISIBILITY
40 const __llvm_profile_data *__llvm_profile_begin_data(void) {
43 COMPILER_RT_VISIBILITY
44 const __llvm_profile_data *__llvm_profile_end_data(void) { return &DataEnd; }
45 COMPILER_RT_VISIBILITY
46 const char *__llvm_profile_begin_names(void) { return &NamesStart; }
47 COMPILER_RT_VISIBILITY
48 const char *__llvm_profile_end_names(void) { return &NamesEnd; }
49 COMPILER_RT_VISIBILITY
50 uint64_t *__llvm_profile_begin_counters(void) { return &CountersStart; }
51 COMPILER_RT_VISIBILITY
52 uint64_t *__llvm_profile_end_counters(void) { return &CountersEnd; }
54 COMPILER_RT_VISIBILITY
55 ValueProfNode *__llvm_profile_begin_vnodes(void) {
58 COMPILER_RT_VISIBILITY
59 ValueProfNode *__llvm_profile_end_vnodes(void) { return &VNodesEnd; }
61 COMPILER_RT_VISIBILITY ValueProfNode *CurrentVNode = &VNodesStart;
62 COMPILER_RT_VISIBILITY ValueProfNode *EndVNode = &VNodesEnd;