1/*===- InstrProfilingPlatformDarwin.c - Profile data on Darwin ------------===*\
2|*
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
6|*
7\*===----------------------------------------------------------------------===*/
8
9#include "InstrProfiling.h"
10
11#if defined(__APPLE__)
12/* Use linker magic to find the bounds of the Data section. */
13COMPILER_RT_VISIBILITY
14extern __llvm_profile_data
15    DataStart __asm("section$start$__DATA$" INSTR_PROF_DATA_SECT_NAME);
16COMPILER_RT_VISIBILITY
17extern __llvm_profile_data
18    DataEnd __asm("section$end$__DATA$" INSTR_PROF_DATA_SECT_NAME);
19COMPILER_RT_VISIBILITY
20extern char
21    NamesStart __asm("section$start$__DATA$" INSTR_PROF_NAME_SECT_NAME);
22COMPILER_RT_VISIBILITY
23extern char NamesEnd __asm("section$end$__DATA$" INSTR_PROF_NAME_SECT_NAME);
24COMPILER_RT_VISIBILITY
25extern uint64_t
26    CountersStart __asm("section$start$__DATA$" INSTR_PROF_CNTS_SECT_NAME);
27COMPILER_RT_VISIBILITY
28extern uint64_t
29    CountersEnd __asm("section$end$__DATA$" INSTR_PROF_CNTS_SECT_NAME);
30COMPILER_RT_VISIBILITY
31extern uint32_t
32    OrderFileStart __asm("section$start$__DATA$" INSTR_PROF_ORDERFILE_SECT_NAME);
33
34COMPILER_RT_VISIBILITY
35extern ValueProfNode
36    VNodesStart __asm("section$start$__DATA$" INSTR_PROF_VNODES_SECT_NAME);
37COMPILER_RT_VISIBILITY
38extern ValueProfNode
39    VNodesEnd __asm("section$end$__DATA$" INSTR_PROF_VNODES_SECT_NAME);
40
41COMPILER_RT_VISIBILITY
42const __llvm_profile_data *__llvm_profile_begin_data(void) {
43  return &DataStart;
44}
45COMPILER_RT_VISIBILITY
46const __llvm_profile_data *__llvm_profile_end_data(void) { return &DataEnd; }
47COMPILER_RT_VISIBILITY
48const char *__llvm_profile_begin_names(void) { return &NamesStart; }
49COMPILER_RT_VISIBILITY
50const char *__llvm_profile_end_names(void) { return &NamesEnd; }
51COMPILER_RT_VISIBILITY
52uint64_t *__llvm_profile_begin_counters(void) { return &CountersStart; }
53COMPILER_RT_VISIBILITY
54uint64_t *__llvm_profile_end_counters(void) { return &CountersEnd; }
55COMPILER_RT_VISIBILITY
56uint32_t *__llvm_profile_begin_orderfile(void) { return &OrderFileStart; }
57
58COMPILER_RT_VISIBILITY
59ValueProfNode *__llvm_profile_begin_vnodes(void) {
60  return &VNodesStart;
61}
62COMPILER_RT_VISIBILITY
63ValueProfNode *__llvm_profile_end_vnodes(void) { return &VNodesEnd; }
64
65COMPILER_RT_VISIBILITY ValueProfNode *CurrentVNode = &VNodesStart;
66COMPILER_RT_VISIBILITY ValueProfNode *EndVNode = &VNodesEnd;
67#endif
68