linux-kernel - Re: [PATCH] perf clang: Fix header include for LLVM >= 14

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Message-ID: <Ylshkzt+vx7yoOmF@kernel.org>
Date:   Sat, 16 Apr 2022 17:05:39 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Guilherme Amadio <amadio@...too.org>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Sedat Dilek <sedat.dilek@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf clang: Fix header include for LLVM >= 14

Em Sat, Apr 16, 2022 at 05:00:40PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Sat, Apr 16, 2022 at 04:58:22PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Sat, Apr 16, 2022 at 04:56:24PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Em Sat, Apr 16, 2022 at 09:45:55AM +0200, Guilherme Amadio escreveu:
> > > > The header TargetRegistry.h has moved in LLVM/clang 14.
> > 
> > > And that part : /usr/bin/ld: /usr/lib/llvm-10/lib/libclangCodeGen.a
> > > seems to imply its llvm 10 that is installed, lemme check:
> > > 
> > > [perfbuilder@...e ~]$ dsh ubuntu:20.04
> > > $ bash
> > > perfbuilder@...e87e48135:/$ dpkg -l | grep llvm
> > > ii  libllvm10:amd64                    1:10.0.0-4ubuntu1                 amd64        Modular compiler and toolchain technologies, runtime library
> > > ii  libllvm12:amd64                    1:12.0.0-3ubuntu1~20.04.5         amd64        Modular compiler and toolchain technologies, runtime library
> > > ii  llvm                               1:10.0-50~exp1                    amd64        Low-Level Virtual Machine (LLVM)
> > > ii  llvm-10                            1:10.0.0-4ubuntu1                 amd64        Modular compiler and toolchain technologies
> > > ii  llvm-10-dev                        1:10.0.0-4ubuntu1                 amd64        Modular compiler and toolchain technologies, libraries and headers
> > > ii  llvm-10-runtime                    1:10.0.0-4ubuntu1                 amd64        Modular compiler and toolchain technologies, IR interpreter
> > > ii  llvm-10-tools                      1:10.0.0-4ubuntu1                 amd64        Modular compiler and toolchain technologies, tools
> > > ii  llvm-dev                           1:10.0-50~exp1                    amd64        Low-Level Virtual Machine (LLVM), libraries and headers
> > > ii  llvm-runtime                       1:10.0-50~exp1                    amd64        Low-Level Virtual Machine (LLVM), bytecode interpreter
> > > perfbuilder@...e87e48135:/$ dpkg -l | grep clang
> > > ii  clang                              1:10.0-50~exp1                    amd64        C, C++ and Objective-C compiler (LLVM based)
> > > ii  clang-10                           1:10.0.0-4ubuntu1                 amd64        C, C++ and Objective-C compiler
> > > ii  libclang-10-dev                    1:10.0.0-4ubuntu1                 amd64        Clang library - Development package
> > > ii  libclang-common-10-dev             1:10.0.0-4ubuntu1                 amd64        Clang library - Common development package
> > > ii  libclang-cpp10                     1:10.0.0-4ubuntu1                 amd64        C++ interface to the Clang library
> > > ii  libclang-dev                       1:10.0-50~exp1                    amd64        clang library - Development package
> > > ii  libclang1-10                       1:10.0.0-4ubuntu1                 amd64        C interface to the Clang library
> > > perfbuilder@...e87e48135:/$
> > > 
> > > Yeah, so I'll try making it test >= 10, lets see...
> > 
> > perfbuilder@...e87e48135:/$ find /usr -name TargetRegistry.h
> > /usr/include/llvm-10/llvm/Support/TargetRegistry.h
> > perfbuilder@...e87e48135:/$
> > 
> 
> Sorry, your fix is for the ubuntu 22.04 problem, not the 20.04 one,
> retesting...

Thanks, applied, the bug is fixed on ubuntu 22.04.

- Arnaldo