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llvm-mirror/tools/llvm-profgen/CMakeLists.txt

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[llvm-profgen][NFC]Fix build failure on different platform see titile Test Plan: ninja & ninja check-llvm Reviewed By: hoy Differential Revision: https://reviews.llvm.org/D91897
2020-11-21 01:20:37 +01:00
[CSSPGO][llvm-profgen] Parse mmap events from perf script This stack of changes introduces `llvm-profgen` utility which generates a profile data file from given perf script data files for sample-based PGO. It’s part of(not only) the CSSPGO work. Specifically to support context-sensitive with/without pseudo probe profile, it implements a series of functionalities including perf trace parsing, instruction symbolization, LBR stack/call frame stack unwinding, pseudo probe decoding, etc. Also high throughput is achieved by multiple levels of sample aggregation and compatible format with one stop is generated at the end. Please refer to: https://groups.google.com/g/llvm-dev/c/1p1rdYbL93s for the CSSPGO RFC. As a starter, this change sets up an entry point by introducing PerfReader to load profiled binaries and perf traces(including perf events and perf samples). For the event, here it parses the mmap2 events from perf script to build the loader snaps, which is used to retrieve the image load address in the subsequent perf tracing parsing. As described in llvm-profgen.rst, the tool being built aims to support multiple input perf data (preprocessed by perf script) as well as multiple input binary images. It should also support dynamic reload/unload shared objects by leveraging the loader snaps being built by this change Reviewed By: wenlei, wmi Differential Revision: https://reviews.llvm.org/D89707
2020-10-19 06:36:54 +02:00
set(LLVM_LINK_COMPONENTS
[CSSPGO][llvm-profgen] Disassemble text sections This stack of changes introduces `llvm-profgen` utility which generates a profile data file from given perf script data files for sample-based PGO. It’s part of(not only) the CSSPGO work. Specifically to support context-sensitive with/without pseudo probe profile, it implements a series of functionalities including perf trace parsing, instruction symbolization, LBR stack/call frame stack unwinding, pseudo probe decoding, etc. Also high throughput is achieved by multiple levels of sample aggregation and compatible format with one stop is generated at the end. Please refer to: https://groups.google.com/g/llvm-dev/c/1p1rdYbL93s for the CSSPGO RFC. This change enables disassembling the text sections to build various address maps that are potentially used by the virtual unwinder. A switch `--show-disassembly` is being added to print the disassembly code. Like the llvm-objdump tool, this change leverages existing LLVM components to parse and disassemble ELF binary files. So far X86 is supported. Test Plan: ninja check-llvm Reviewed By: wmi, wenlei Differential Revision: https://reviews.llvm.org/D89712
2020-10-19 19:02:05 +02:00
AllTargetsDescs
AllTargetsDisassemblers
Fix shared build.
2020-11-21 23:06:41 +01:00
AllTargetsInfos
[CSSPGO][llvm-profgen] Parse mmap events from perf script This stack of changes introduces `llvm-profgen` utility which generates a profile data file from given perf script data files for sample-based PGO. It’s part of(not only) the CSSPGO work. Specifically to support context-sensitive with/without pseudo probe profile, it implements a series of functionalities including perf trace parsing, instruction symbolization, LBR stack/call frame stack unwinding, pseudo probe decoding, etc. Also high throughput is achieved by multiple levels of sample aggregation and compatible format with one stop is generated at the end. Please refer to: https://groups.google.com/g/llvm-dev/c/1p1rdYbL93s for the CSSPGO RFC. As a starter, this change sets up an entry point by introducing PerfReader to load profiled binaries and perf traces(including perf events and perf samples). For the event, here it parses the mmap2 events from perf script to build the loader snaps, which is used to retrieve the image load address in the subsequent perf tracing parsing. As described in llvm-profgen.rst, the tool being built aims to support multiple input perf data (preprocessed by perf script) as well as multiple input binary images. It should also support dynamic reload/unload shared objects by leveraging the loader snaps being built by this change Reviewed By: wenlei, wmi Differential Revision: https://reviews.llvm.org/D89707
2020-10-19 06:36:54 +02:00
Core
[CSSPGO][llvm-profgen] Disassemble text sections This stack of changes introduces `llvm-profgen` utility which generates a profile data file from given perf script data files for sample-based PGO. It’s part of(not only) the CSSPGO work. Specifically to support context-sensitive with/without pseudo probe profile, it implements a series of functionalities including perf trace parsing, instruction symbolization, LBR stack/call frame stack unwinding, pseudo probe decoding, etc. Also high throughput is achieved by multiple levels of sample aggregation and compatible format with one stop is generated at the end. Please refer to: https://groups.google.com/g/llvm-dev/c/1p1rdYbL93s for the CSSPGO RFC. This change enables disassembling the text sections to build various address maps that are potentially used by the virtual unwinder. A switch `--show-disassembly` is being added to print the disassembly code. Like the llvm-objdump tool, this change leverages existing LLVM components to parse and disassemble ELF binary files. So far X86 is supported. Test Plan: ninja check-llvm Reviewed By: wmi, wenlei Differential Revision: https://reviews.llvm.org/D89712
2020-10-19 19:02:05 +02:00
MC
MCDisassembler
Object
[CSSPGO][llvm-profgen] Parse mmap events from perf script This stack of changes introduces `llvm-profgen` utility which generates a profile data file from given perf script data files for sample-based PGO. It’s part of(not only) the CSSPGO work. Specifically to support context-sensitive with/without pseudo probe profile, it implements a series of functionalities including perf trace parsing, instruction symbolization, LBR stack/call frame stack unwinding, pseudo probe decoding, etc. Also high throughput is achieved by multiple levels of sample aggregation and compatible format with one stop is generated at the end. Please refer to: https://groups.google.com/g/llvm-dev/c/1p1rdYbL93s for the CSSPGO RFC. As a starter, this change sets up an entry point by introducing PerfReader to load profiled binaries and perf traces(including perf events and perf samples). For the event, here it parses the mmap2 events from perf script to build the loader snaps, which is used to retrieve the image load address in the subsequent perf tracing parsing. As described in llvm-profgen.rst, the tool being built aims to support multiple input perf data (preprocessed by perf script) as well as multiple input binary images. It should also support dynamic reload/unload shared objects by leveraging the loader snaps being built by this change Reviewed By: wenlei, wmi Differential Revision: https://reviews.llvm.org/D89707
2020-10-19 06:36:54 +02:00
Support
[CSSPGO][llvm-profgen] Instruction symbolization This stack of changes introduces `llvm-profgen` utility which generates a profile data file from given perf script data files for sample-based PGO. It’s part of(not only) the CSSPGO work. Specifically to support context-sensitive with/without pseudo probe profile, it implements a series of functionalities including perf trace parsing, instruction symbolization, LBR stack/call frame stack unwinding, pseudo probe decoding, etc. Also high throughput is achieved by multiple levels of sample aggregation and compatible format with one stop is generated at the end. Please refer to: https://groups.google.com/g/llvm-dev/c/1p1rdYbL93s for the CSSPGO RFC. This change adds the support of instruction symbolization. Given the RVA on an instruction pointer, a full calling context can be printed side-by-side with the disassembly code. E.g. ``` Disassembly of section .text [0x0, 0x4a]: <funcA>: 0: mov eax, edi funcA:0 2: mov ecx, dword ptr [rip] funcLeaf:2 @ funcA:1 8: lea edx, [rcx + 3] fib:2 @ funcLeaf:2 @ funcA:1 b: cmp ecx, 3 fib:2 @ funcLeaf:2 @ funcA:1 e: cmovl edx, ecx fib:2 @ funcLeaf:2 @ funcA:1 11: sub eax, edx funcLeaf:2 @ funcA:1 13: ret funcA:2 14: nop word ptr cs:[rax + rax] 1e: nop <funcLeaf>: 20: mov eax, edi funcLeaf:1 22: mov ecx, dword ptr [rip] funcLeaf:2 28: lea edx, [rcx + 3] fib:2 @ funcLeaf:2 2b: cmp ecx, 3 fib:2 @ funcLeaf:2 2e: cmovl edx, ecx fib:2 @ funcLeaf:2 31: sub eax, edx funcLeaf:2 33: ret funcLeaf:3 34: nop word ptr cs:[rax + rax] 3e: nop <fib>: 40: lea eax, [rdi + 3] fib:2 43: cmp edi, 3 fib:2 46: cmovl eax, edi fib:2 49: ret fib:8 ``` Test Plan: ninja check-llvm Reviewed By: wenlei, wmi Differential Revision: https://reviews.llvm.org/D89715
2020-10-19 19:19:08 +02:00
Symbolize
[CSSPGO][llvm-profgen] Parse mmap events from perf script This stack of changes introduces `llvm-profgen` utility which generates a profile data file from given perf script data files for sample-based PGO. It’s part of(not only) the CSSPGO work. Specifically to support context-sensitive with/without pseudo probe profile, it implements a series of functionalities including perf trace parsing, instruction symbolization, LBR stack/call frame stack unwinding, pseudo probe decoding, etc. Also high throughput is achieved by multiple levels of sample aggregation and compatible format with one stop is generated at the end. Please refer to: https://groups.google.com/g/llvm-dev/c/1p1rdYbL93s for the CSSPGO RFC. As a starter, this change sets up an entry point by introducing PerfReader to load profiled binaries and perf traces(including perf events and perf samples). For the event, here it parses the mmap2 events from perf script to build the loader snaps, which is used to retrieve the image load address in the subsequent perf tracing parsing. As described in llvm-profgen.rst, the tool being built aims to support multiple input perf data (preprocessed by perf script) as well as multiple input binary images. It should also support dynamic reload/unload shared objects by leveraging the loader snaps being built by this change Reviewed By: wenlei, wmi Differential Revision: https://reviews.llvm.org/D89707
2020-10-19 06:36:54 +02:00
)
add_llvm_tool(llvm-profgen
llvm-profgen.cpp
PerfReader.cpp
[CSSPGO][llvm-profgen] Disassemble text sections This stack of changes introduces `llvm-profgen` utility which generates a profile data file from given perf script data files for sample-based PGO. It’s part of(not only) the CSSPGO work. Specifically to support context-sensitive with/without pseudo probe profile, it implements a series of functionalities including perf trace parsing, instruction symbolization, LBR stack/call frame stack unwinding, pseudo probe decoding, etc. Also high throughput is achieved by multiple levels of sample aggregation and compatible format with one stop is generated at the end. Please refer to: https://groups.google.com/g/llvm-dev/c/1p1rdYbL93s for the CSSPGO RFC. This change enables disassembling the text sections to build various address maps that are potentially used by the virtual unwinder. A switch `--show-disassembly` is being added to print the disassembly code. Like the llvm-objdump tool, this change leverages existing LLVM components to parse and disassemble ELF binary files. So far X86 is supported. Test Plan: ninja check-llvm Reviewed By: wmi, wenlei Differential Revision: https://reviews.llvm.org/D89712
2020-10-19 19:02:05 +02:00
ProfiledBinary.cpp
[CSSPGO][llvm-profgen] Parse mmap events from perf script This stack of changes introduces `llvm-profgen` utility which generates a profile data file from given perf script data files for sample-based PGO. It’s part of(not only) the CSSPGO work. Specifically to support context-sensitive with/without pseudo probe profile, it implements a series of functionalities including perf trace parsing, instruction symbolization, LBR stack/call frame stack unwinding, pseudo probe decoding, etc. Also high throughput is achieved by multiple levels of sample aggregation and compatible format with one stop is generated at the end. Please refer to: https://groups.google.com/g/llvm-dev/c/1p1rdYbL93s for the CSSPGO RFC. As a starter, this change sets up an entry point by introducing PerfReader to load profiled binaries and perf traces(including perf events and perf samples). For the event, here it parses the mmap2 events from perf script to build the loader snaps, which is used to retrieve the image load address in the subsequent perf tracing parsing. As described in llvm-profgen.rst, the tool being built aims to support multiple input perf data (preprocessed by perf script) as well as multiple input binary images. It should also support dynamic reload/unload shared objects by leveraging the loader snaps being built by this change Reviewed By: wenlei, wmi Differential Revision: https://reviews.llvm.org/D89707
2020-10-19 06:36:54 +02:00
)
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