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|
/*===- InstrProfilingPlatformWindows.c - Profile data on Windows ----------===*\
|*
|* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|* See https://llvm.org/LICENSE.txt for license information.
|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|*
\*===----------------------------------------------------------------------===*/
#include "InstrProfiling.h"
#include "InstrProfilingInternal.h"
#if defined(_WIN32)
#if defined(_MSC_VER)
/* Merge read-write sections into .data. */
#pragma comment(linker, "/MERGE:.lprfb=.data")
#pragma comment(linker, "/MERGE:.lprfd=.data")
#pragma comment(linker, "/MERGE:.lprfv=.data")
#pragma comment(linker, "/MERGE:.lprfnd=.data")
/* Do *NOT* merge .lprfn and .lcovmap into .rdata. llvm-cov must be able to find
* after the fact.
* Do *NOT* merge .lprfc .rdata. When binary profile correlation is enabled,
* llvm-cov must be able to find after the fact.
*/
/* Allocate read-only section bounds. */
#pragma section(".lprfn$A", read)
#pragma section(".lprfn$Z", read)
/* Allocate read-write section bounds. */
#pragma section(".lprfd$A", read, write)
#pragma section(".lprfd$Z", read, write)
#pragma section(".lprfc$A", read, write)
#pragma section(".lprfc$Z", read, write)
#pragma section(".lprfb$A", read, write)
#pragma section(".lprfb$Z", read, write)
#pragma section(".lorderfile$A", read, write)
#pragma section(".lprfnd$A", read, write)
#pragma section(".lprfnd$Z", read, write)
#endif
__llvm_profile_data COMPILER_RT_SECTION(".lprfd$A") DataStart = {0};
__llvm_profile_data COMPILER_RT_SECTION(".lprfd$Z") DataEnd = {0};
const char COMPILER_RT_SECTION(".lprfn$A") NamesStart = '\0';
const char COMPILER_RT_SECTION(".lprfn$Z") NamesEnd = '\0';
char COMPILER_RT_SECTION(".lprfc$A") CountersStart;
char COMPILER_RT_SECTION(".lprfc$Z") CountersEnd;
char COMPILER_RT_SECTION(".lprfb$A") BitmapStart;
char COMPILER_RT_SECTION(".lprfb$Z") BitmapEnd;
uint32_t COMPILER_RT_SECTION(".lorderfile$A") OrderFileStart;
ValueProfNode COMPILER_RT_SECTION(".lprfnd$A") VNodesStart;
ValueProfNode COMPILER_RT_SECTION(".lprfnd$Z") VNodesEnd;
const __llvm_profile_data *__llvm_profile_begin_data(void) {
return &DataStart + 1;
}
const __llvm_profile_data *__llvm_profile_end_data(void) { return &DataEnd; }
const char *__llvm_profile_begin_names(void) { return &NamesStart + 1; }
const char *__llvm_profile_end_names(void) { return &NamesEnd; }
char *__llvm_profile_begin_counters(void) { return &CountersStart + 1; }
char *__llvm_profile_end_counters(void) { return &CountersEnd; }
char *__llvm_profile_begin_bitmap(void) { return &BitmapStart + 1; }
char *__llvm_profile_end_bitmap(void) { return &BitmapEnd; }
uint32_t *__llvm_profile_begin_orderfile(void) { return &OrderFileStart; }
ValueProfNode *__llvm_profile_begin_vnodes(void) { return &VNodesStart + 1; }
ValueProfNode *__llvm_profile_end_vnodes(void) { return &VNodesEnd; }
ValueProfNode *CurrentVNode = &VNodesStart + 1;
ValueProfNode *EndVNode = &VNodesEnd;
/* lld-link provides __buildid symbol which ponits to the 16 bytes build id when
* using /build-id flag. https://lld.llvm.org/windows_support.html#lld-flags */
#define BUILD_ID_LEN 16
COMPILER_RT_WEAK uint8_t __buildid[BUILD_ID_LEN];
COMPILER_RT_VISIBILITY int __llvm_write_binary_ids(ProfDataWriter *Writer) {
if (*__buildid) {
if (Writer &&
lprofWriteOneBinaryId(Writer, BUILD_ID_LEN, __buildid, 0) == -1)
return -1;
return sizeof(uint64_t) + BUILD_ID_LEN;
}
return 0;
}
#endif
|
