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#include "InstrProfilingInternal.h" 11 12#if defined(_WIN32) 13 14#if defined(_MSC_VER) 15/* Merge read-write sections into .data. */ 16#pragma comment(linker, "/MERGE:.lprfc=.data") 17#pragma comment(linker, "/MERGE:.lprfd=.data") 18#pragma comment(linker, "/MERGE:.lprfv=.data") 19#pragma comment(linker, "/MERGE:.lprfnd=.data") 20/* Do *NOT* merge .lprfn and .lcovmap into .rdata. llvm-cov must be able to find 21 * after the fact. 22 */ 23 24/* Allocate read-only section bounds. */ 25#pragma section(".lprfn$A", read) 26#pragma section(".lprfn$Z", read) 27 28/* Allocate read-write section bounds. */ 29#pragma section(".lprfd$A", read, write) 30#pragma section(".lprfd$Z", read, write) 31#pragma section(".lprfc$A", read, write) 32#pragma section(".lprfc$Z", read, write) 33#pragma section(".lorderfile$A", read, write) 34#pragma section(".lprfnd$A", read, write) 35#pragma section(".lprfnd$Z", read, write) 36#endif 37 38__llvm_profile_data COMPILER_RT_SECTION(".lprfd$A") DataStart = {0}; 39__llvm_profile_data COMPILER_RT_SECTION(".lprfd$Z") DataEnd = {0}; 40 41const char COMPILER_RT_SECTION(".lprfn$A") NamesStart = '\0'; 42const char COMPILER_RT_SECTION(".lprfn$Z") NamesEnd = '\0'; 43 44char COMPILER_RT_SECTION(".lprfc$A") CountersStart; 45char COMPILER_RT_SECTION(".lprfc$Z") CountersEnd; 46uint32_t COMPILER_RT_SECTION(".lorderfile$A") OrderFileStart; 47 48ValueProfNode COMPILER_RT_SECTION(".lprfnd$A") VNodesStart; 49ValueProfNode COMPILER_RT_SECTION(".lprfnd$Z") VNodesEnd; 50 51const __llvm_profile_data *__llvm_profile_begin_data(void) { 52 return &DataStart + 1; 53} 54const __llvm_profile_data *__llvm_profile_end_data(void) { return &DataEnd; } 55 56const char *__llvm_profile_begin_names(void) { return &NamesStart + 1; } 57const char *__llvm_profile_end_names(void) { return &NamesEnd; } 58 59char *__llvm_profile_begin_counters(void) { return &CountersStart + 1; } 60char *__llvm_profile_end_counters(void) { return &CountersEnd; } 61uint32_t *__llvm_profile_begin_orderfile(void) { return &OrderFileStart; } 62 63ValueProfNode *__llvm_profile_begin_vnodes(void) { return &VNodesStart + 1; } 64ValueProfNode *__llvm_profile_end_vnodes(void) { return &VNodesEnd; } 65 66ValueProfNode *CurrentVNode = &VNodesStart + 1; 67ValueProfNode *EndVNode = &VNodesEnd; 68 69COMPILER_RT_VISIBILITY int __llvm_write_binary_ids(ProfDataWriter *Writer) { 70 return 0; 71} 72 73#endif 74