e50a38840d
This patch adds binary id into profiles to easily associate binaries with the corresponding profiles. There is an RFC that discusses the motivation, design and implementation in more detail: https://lists.llvm.org/pipermail/llvm-dev/2021-June/151154.html Differential Revision: https://reviews.llvm.org/D102039
77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
/*===- InstrProfilingPlatformDarwin.c - Profile data on Darwin ------------===*\
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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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// Note: This is linked into the Darwin kernel, and must remain compatible
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// with freestanding compilation. See `darwin_add_builtin_libraries`.
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#include "InstrProfiling.h"
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#include "InstrProfilingInternal.h"
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#if defined(__APPLE__)
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/* Use linker magic to find the bounds of the Data section. */
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COMPILER_RT_VISIBILITY
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extern __llvm_profile_data
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DataStart __asm("section$start$__DATA$" INSTR_PROF_DATA_SECT_NAME);
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COMPILER_RT_VISIBILITY
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extern __llvm_profile_data
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DataEnd __asm("section$end$__DATA$" INSTR_PROF_DATA_SECT_NAME);
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COMPILER_RT_VISIBILITY
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extern char
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NamesStart __asm("section$start$__DATA$" INSTR_PROF_NAME_SECT_NAME);
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COMPILER_RT_VISIBILITY
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extern char NamesEnd __asm("section$end$__DATA$" INSTR_PROF_NAME_SECT_NAME);
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COMPILER_RT_VISIBILITY
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extern uint64_t
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CountersStart __asm("section$start$__DATA$" INSTR_PROF_CNTS_SECT_NAME);
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COMPILER_RT_VISIBILITY
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extern uint64_t
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CountersEnd __asm("section$end$__DATA$" INSTR_PROF_CNTS_SECT_NAME);
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COMPILER_RT_VISIBILITY
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extern uint32_t
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OrderFileStart __asm("section$start$__DATA$" INSTR_PROF_ORDERFILE_SECT_NAME);
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COMPILER_RT_VISIBILITY
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extern ValueProfNode
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VNodesStart __asm("section$start$__DATA$" INSTR_PROF_VNODES_SECT_NAME);
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COMPILER_RT_VISIBILITY
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extern ValueProfNode
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VNodesEnd __asm("section$end$__DATA$" INSTR_PROF_VNODES_SECT_NAME);
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COMPILER_RT_VISIBILITY
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const __llvm_profile_data *__llvm_profile_begin_data(void) {
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return &DataStart;
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}
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COMPILER_RT_VISIBILITY
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const __llvm_profile_data *__llvm_profile_end_data(void) { return &DataEnd; }
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COMPILER_RT_VISIBILITY
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const char *__llvm_profile_begin_names(void) { return &NamesStart; }
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COMPILER_RT_VISIBILITY
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const char *__llvm_profile_end_names(void) { return &NamesEnd; }
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COMPILER_RT_VISIBILITY
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uint64_t *__llvm_profile_begin_counters(void) { return &CountersStart; }
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COMPILER_RT_VISIBILITY
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uint64_t *__llvm_profile_end_counters(void) { return &CountersEnd; }
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COMPILER_RT_VISIBILITY
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uint32_t *__llvm_profile_begin_orderfile(void) { return &OrderFileStart; }
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COMPILER_RT_VISIBILITY
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ValueProfNode *__llvm_profile_begin_vnodes(void) {
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return &VNodesStart;
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}
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COMPILER_RT_VISIBILITY
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ValueProfNode *__llvm_profile_end_vnodes(void) { return &VNodesEnd; }
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COMPILER_RT_VISIBILITY ValueProfNode *CurrentVNode = &VNodesStart;
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COMPILER_RT_VISIBILITY 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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