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Wed, 24 Feb 2021 12:17:24 -0800 (PST) Date: Wed, 24 Feb 2021 12:17:23 -0800 From: Guenter Roeck To: Sami Tolvanen Subject: Re: [PATCH v9 01/16] tracing: move function tracer options to Kconfig (causing parisc build failures) Message-ID: <20210224201723.GA69309@roeck-us.net> References: <20201211184633.3213045-1-samitolvanen@google.com> <20201211184633.3213045-2-samitolvanen@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201211184633.3213045-2-samitolvanen@google.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210224_151729_189191_48CE58F8 X-CRM114-Status: GOOD ( 15.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, Kees Cook , "Paul E. McKenney" , kernel-hardening@lists.openwall.com, Peter Zijlstra , Greg Kroah-Hartman , Masahiro Yamada , linux-kbuild@vger.kernel.org, Nick Desaulniers , linux-kernel@vger.kernel.org, Steven Rostedt , clang-built-linux@googlegroups.com, linux-pci@vger.kernel.org, linux-parisc@vger.kernel.org, Josh Poimboeuf , Will Deacon , Helge Deller , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Dec 11, 2020 at 10:46:18AM -0800, Sami Tolvanen wrote: > Move function tracer options to Kconfig to make it easier to add > new methods for generating __mcount_loc, and to make the options > available also when building kernel modules. > > Note that FTRACE_MCOUNT_USE_* options are updated on rebuild and > therefore, work even if the .config was generated in a different > environment. > > Signed-off-by: Sami Tolvanen > Acked-by: Steven Rostedt (VMware) With this patch in place, parisc:allmodconfig no longer builds. Error log: Arch parisc is not supported with CONFIG_FTRACE_MCOUNT_RECORD at scripts/recordmcount.pl line 405. make[2]: *** [scripts/mod/empty.o] Error 2 Due to this problem, CONFIG_FTRACE_MCOUNT_RECORD can no longer be enabled in parisc builds. Since that is auto-selected by DYNAMIC_FTRACE, DYNAMIC_FTRACE can no longer be enabled, and with it everything that depends on it. Bisect log attached. Guenter --- # bad: [414eece95b98b209cef0f49cfcac108fd00b8ced] Merge tag 'clang-lto-v5.12-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux # good: [b12b47249688915e987a9a2a393b522f86f6b7ab] Merge tag 'powerpc-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux git bisect start '414eece95b98' 'b12b47249688' # bad: [f6e1e1d1e149802ed4062fa514c2d184d30aacdf] Merge tag 'gfs2-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 git bisect bad f6e1e1d1e149802ed4062fa514c2d184d30aacdf # bad: [79db4d2293eba2ce6265a341bedf6caecad5eeb3] Merge tag 'clang-lto-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux git bisect bad 79db4d2293eba2ce6265a341bedf6caecad5eeb3 # good: [9d5032f97e9e0655e8c507ab1f43237e31520b00] dt-bindings: mediatek: mt8192: Fix dt_binding_check warning git bisect good 9d5032f97e9e0655e8c507ab1f43237e31520b00 # good: [f81f213850ca84b3d5e59e17d17acb2ecfc24076] Merge tag 'for-linus-5.12-1' of git://github.com/cminyard/linux-ipmi git bisect good f81f213850ca84b3d5e59e17d17acb2ecfc24076 # bad: [112b6a8e038d793d016e330f53acb9383ac504b3] arm64: allow LTO to be selected git bisect bad 112b6a8e038d793d016e330f53acb9383ac504b3 # bad: [3578ad11f3fba07e64c26d8db68cfd3dde28c59e] init: lto: fix PREL32 relocations git bisect bad 3578ad11f3fba07e64c26d8db68cfd3dde28c59e # bad: [22d429e75f24d114d99223389d6ba7047e952e32] kbuild: lto: limit inlining git bisect bad 22d429e75f24d114d99223389d6ba7047e952e32 # bad: [dc5723b02e523b2c4a68667f7e28c65018f7202f] kbuild: add support for Clang LTO git bisect bad dc5723b02e523b2c4a68667f7e28c65018f7202f # bad: [3b15cdc15956673ba1551d79bceae471436ac6a9] tracing: move function tracer options to Kconfig git bisect bad 3b15cdc15956673ba1551d79bceae471436ac6a9 # first bad commit: [3b15cdc15956673ba1551d79bceae471436ac6a9] tracing: move function tracer options to Kconfig _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel