1 /*===- InstrProfilingPlatformWindows.c - Profile data on Windows ----------===*\
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(_WIN32)
12
13 #if defined(_MSC_VER)
14 /* Merge read-write sections into .data. */
15 #pragma comment(linker, "/MERGE:.lprfc=.data")
16 #pragma comment(linker, "/MERGE:.lprfd=.data")
17 #pragma comment(linker, "/MERGE:.lprfv=.data")
18 #pragma comment(linker, "/MERGE:.lprfnd=.data")
19 /* Do *NOT* merge .lprfn and .lcovmap into .rdata. llvm-cov must be able to find
20 * after the fact.
21 */
22
23 /* Allocate read-only section bounds. */
24 #pragma section(".lprfn$A", read)
25 #pragma section(".lprfn$Z", read)
26
27 /* Allocate read-write section bounds. */
28 #pragma section(".lprfd$A", read, write)
29 #pragma section(".lprfd$Z", read, write)
30 #pragma section(".lprfc$A", read, write)
31 #pragma section(".lprfc$Z", read, write)
32 #pragma section(".lorderfile$A", read, write)
33 #pragma section(".lprfnd$A", read, write)
34 #pragma section(".lprfnd$Z", read, write)
35 #endif
36
37 __llvm_profile_data COMPILER_RT_SECTION(".lprfd$A") DataStart = {0};
38 __llvm_profile_data COMPILER_RT_SECTION(".lprfd$Z") DataEnd = {0};
39
40 const char COMPILER_RT_SECTION(".lprfn$A") NamesStart = '\0';
41 const char COMPILER_RT_SECTION(".lprfn$Z") NamesEnd = '\0';
42
43 uint64_t COMPILER_RT_SECTION(".lprfc$A") CountersStart;
44 uint64_t COMPILER_RT_SECTION(".lprfc$Z") CountersEnd;
45 uint32_t COMPILER_RT_SECTION(".lorderfile$A") OrderFileStart;
46
47 ValueProfNode COMPILER_RT_SECTION(".lprfnd$A") VNodesStart;
48 ValueProfNode COMPILER_RT_SECTION(".lprfnd$Z") VNodesEnd;
49
__llvm_profile_begin_data(void)50 const __llvm_profile_data *__llvm_profile_begin_data(void) {
51 return &DataStart + 1;
52 }
__llvm_profile_end_data(void)53 const __llvm_profile_data *__llvm_profile_end_data(void) { return &DataEnd; }
54
__llvm_profile_begin_names(void)55 const char *__llvm_profile_begin_names(void) { return &NamesStart + 1; }
__llvm_profile_end_names(void)56 const char *__llvm_profile_end_names(void) { return &NamesEnd; }
57
__llvm_profile_begin_counters(void)58 uint64_t *__llvm_profile_begin_counters(void) { return &CountersStart + 1; }
__llvm_profile_end_counters(void)59 uint64_t *__llvm_profile_end_counters(void) { return &CountersEnd; }
__llvm_profile_begin_orderfile(void)60 uint32_t *__llvm_profile_begin_orderfile(void) { return &OrderFileStart; }
61
__llvm_profile_begin_vnodes(void)62 ValueProfNode *__llvm_profile_begin_vnodes(void) { return &VNodesStart + 1; }
__llvm_profile_end_vnodes(void)63 ValueProfNode *__llvm_profile_end_vnodes(void) { return &VNodesEnd; }
64
65 ValueProfNode *CurrentVNode = &VNodesStart + 1;
66 ValueProfNode *EndVNode = &VNodesEnd;
67
68 #endif
69