f21473752b
Existing code tended to assume that counters had type `uint64_t` and computed size from the number of counters. Fix this code to directly compute the counters size in number of bytes where possible. When the number of counters is needed, use `__llvm_profile_counter_entry_size()` or `getCounterTypeSize()`. In a later diff these functions will depend on the profile mode. Change the meaning of `DataSize` and `CountersSize` to make them more clear. * `DataSize` (`CountersSize`) - the size of the data (counter) section in bytes. * `NumData` (`NumCounters`) - the number of data (counter) entries. Reviewed By: kyulee Differential Revision: https://reviews.llvm.org/D116179
74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
/*===- InstrProfilingPlatformWindows.c - Profile data on Windows ----------===*\
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|*
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|* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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|* See https://llvm.org/LICENSE.txt for license information.
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|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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|*
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\*===----------------------------------------------------------------------===*/
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#include "InstrProfiling.h"
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#include "InstrProfilingInternal.h"
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#if defined(_WIN32)
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#if defined(_MSC_VER)
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/* Merge read-write sections into .data. */
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#pragma comment(linker, "/MERGE:.lprfc=.data")
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#pragma comment(linker, "/MERGE:.lprfd=.data")
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#pragma comment(linker, "/MERGE:.lprfv=.data")
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#pragma comment(linker, "/MERGE:.lprfnd=.data")
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/* Do *NOT* merge .lprfn and .lcovmap into .rdata. llvm-cov must be able to find
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* after the fact.
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*/
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/* Allocate read-only section bounds. */
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#pragma section(".lprfn$A", read)
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#pragma section(".lprfn$Z", read)
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/* Allocate read-write section bounds. */
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#pragma section(".lprfd$A", read, write)
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#pragma section(".lprfd$Z", read, write)
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#pragma section(".lprfc$A", read, write)
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#pragma section(".lprfc$Z", read, write)
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#pragma section(".lorderfile$A", read, write)
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#pragma section(".lprfnd$A", read, write)
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#pragma section(".lprfnd$Z", read, write)
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#endif
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__llvm_profile_data COMPILER_RT_SECTION(".lprfd$A") DataStart = {0};
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__llvm_profile_data COMPILER_RT_SECTION(".lprfd$Z") DataEnd = {0};
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const char COMPILER_RT_SECTION(".lprfn$A") NamesStart = '\0';
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const char COMPILER_RT_SECTION(".lprfn$Z") NamesEnd = '\0';
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char COMPILER_RT_SECTION(".lprfc$A") CountersStart;
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char COMPILER_RT_SECTION(".lprfc$Z") CountersEnd;
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uint32_t COMPILER_RT_SECTION(".lorderfile$A") OrderFileStart;
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ValueProfNode COMPILER_RT_SECTION(".lprfnd$A") VNodesStart;
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ValueProfNode COMPILER_RT_SECTION(".lprfnd$Z") VNodesEnd;
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const __llvm_profile_data *__llvm_profile_begin_data(void) {
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return &DataStart + 1;
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}
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const __llvm_profile_data *__llvm_profile_end_data(void) { return &DataEnd; }
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const char *__llvm_profile_begin_names(void) { return &NamesStart + 1; }
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const char *__llvm_profile_end_names(void) { return &NamesEnd; }
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char *__llvm_profile_begin_counters(void) { return &CountersStart + 1; }
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char *__llvm_profile_end_counters(void) { return &CountersEnd; }
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uint32_t *__llvm_profile_begin_orderfile(void) { return &OrderFileStart; }
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ValueProfNode *__llvm_profile_begin_vnodes(void) { return &VNodesStart + 1; }
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ValueProfNode *__llvm_profile_end_vnodes(void) { return &VNodesEnd; }
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ValueProfNode *CurrentVNode = &VNodesStart + 1;
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ValueProfNode *EndVNode = &VNodesEnd;
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COMPILER_RT_VISIBILITY int __llvm_write_binary_ids(ProfDataWriter *Writer) {
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return 0;
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}
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#endif
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