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wlei cc95d46ee1 [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
2020-11-20 14:26:26 -08:00
..
bugpoint llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
bugpoint-passes Reverted the remainings of c1c9819ef91aab51b5a23fb3027adac5a2f551cc 2020-02-11 16:20:06 -08:00
dsymutil [dsymutil] Generalize handling of aliases external symbols 2020-11-16 11:04:31 -08:00
gold [AIX] Turn -fdata-sections on by default in Clang 2020-10-14 15:58:31 +00:00
llc llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
lli llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-ar llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-as llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-as-fuzzer Fix several places that were calling verifyFunction or verifyModule without checking the return value. 2020-05-18 13:28:46 -07:00
llvm-bcanalyzer llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-c-test C API: support scalable vectors 2020-10-28 18:19:34 -04:00
llvm-cat llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-cfi-verify llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-config [MinGW] Use lib prefix for libraries 2020-09-12 22:01:29 +03:00
llvm-cov llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-cvtres llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-cxxdump llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-cxxfilt Make llvm::StringRef to std::string conversions explicit. 2020-01-28 23:25:25 +01:00
llvm-cxxmap llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-diff llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-dis llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-dwarfdump llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-dwp llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-elfabi llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-exegesis [build] Fix dependencies of LLVMExegesis 2020-11-17 06:15:02 -05:00
llvm-extract llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-go Reinstate llvm-go to test the go bindings. 2020-02-13 17:24:55 -08:00
llvm-gsymutil Fix GSYM tests to run the yaml files and fix test failures on some machines. 2020-03-04 19:14:08 -08:00
llvm-ifs llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-isel-fuzzer [AIX] Turn -fdata-sections on by default in Clang 2020-10-14 15:58:31 +00:00
llvm-itanium-demangle-fuzzer Fix file header issues in fuzzers. NFC 2019-02-21 07:57:14 +00:00
llvm-jitlink [ORC] Fix missing return value. 2020-11-14 09:31:20 +11:00
llvm-jitlistener [MCJIT] Profile the code generated by MCJIT engine using Intel VTune profiler 2020-11-16 19:28:14 +11:00
llvm-libtool-darwin llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-link llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-lipo llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-lto llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-lto2 llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-mc llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-mc-assemble-fuzzer Add missing include Host.h in llvm-mc-* fuzzers. NFC. 2020-05-18 02:21:22 +07:00
llvm-mc-disassemble-fuzzer Add missing include Host.h in llvm-mc-* fuzzers. NFC. 2020-05-18 02:21:22 +07:00
llvm-mca llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-microsoft-demangle-fuzzer Give microsoftDemangle() an outparam for how many input bytes were consumed. 2020-05-20 16:17:31 -04:00
llvm-ml [ms] [llvm-ml] Lex MASM strings, including escaping 2020-11-04 15:28:43 -05:00
llvm-modextract llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-mt llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-nm llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-objcopy llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-objdump llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-opt-fuzzer [NFC] Clean up PassBuilder 2020-10-30 10:03:59 -07:00
llvm-opt-report Make llvm::StringRef to std::string conversions explicit. 2020-01-28 23:25:25 +01:00
llvm-pdbutil llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-profdata llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-profgen [CSSPGO][llvm-profgen] Parse mmap events from perf script 2020-11-20 14:26:26 -08:00
llvm-rc llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-readobj [llvm-readelf/obj] - Improve error reporting when dumping group sections. 2020-11-20 12:40:23 +03:00
llvm-reduce llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-rtdyld llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-shlib [Support] On Windows, add optional support for {rpmalloc|snmalloc|mimalloc} 2020-08-27 11:09:46 -04:00
llvm-size llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-special-case-list-fuzzer Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
llvm-split llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-stress llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-strings llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-symbolizer Revert several changes related to llvm-symbolizer exiting non-zero on failure. 2020-10-21 15:21:44 -07:00
llvm-undname llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-xray Internalize functions from various tools. NFC 2020-09-26 15:57:13 -07:00
llvm-yaml-numeric-parser-fuzzer Fix file header issues in fuzzers. NFC 2019-02-21 07:57:14 +00:00
llvm-yaml-parser-fuzzer [YAMLIO] Support non-null-terminated inputs 2020-11-18 23:06:03 +00:00
lto [AIX] Turn -fdata-sections on by default in Clang 2020-10-14 15:58:31 +00:00
msbuild vs integration: bump version nbr 2019-06-19 07:39:53 +00:00
obj2yaml [WebAssembly] Add support for named globals in the object format. 2020-11-19 00:17:22 -08:00
opt [NPM] Add implicit basic-aa before other AA 2020-11-18 13:48:24 -08:00
opt-viewer Convert old python3 cgi method into the new html one 2020-03-25 22:38:55 +01:00
remarks-shlib [tools][remarks-shlib] Don't build libRemarks.so without PIC 2020-09-20 12:40:21 +02:00
sancov [Support] Use InitLLVM in llvm-stress, sancov and TableGen 2020-07-28 07:50:45 -04:00
sanstats Internalize functions from various tools. NFC 2020-09-26 15:57:13 -07:00
split-file [split-file] Fix sys::fs::remove() on Solaris after D83834 2020-08-11 08:05:10 -07:00
verify-uselistorder llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
vfabi-demangle-fuzzer [llvm][VectorUtils] Tweak VFShape for scalable vector functions. 2020-01-30 05:53:56 +00:00
xcode-toolchain [CMake] Use LLVM_ENABLE_IDE instead of CMAKE_CONFIGURATION_TYPES 2018-10-15 21:20:02 +00:00
yaml2obj [llvm] Make obj2yaml and yaml2obj LLVM utilities instead of tools 2020-10-19 10:21:21 -07:00
CMakeLists.txt [Flang] add flang as a new subproject in cmake 2020-04-09 16:13:18 +01:00