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Thu, 07 Feb 2019 21:14:46 -0800 (PST) Date: Thu, 7 Feb 2019 22:14:44 -0700 From: Nathan Chancellor To: ndesaulniers@google.com Cc: yamada.masahiro@socionext.com, Sami Tolvanen , Andrew Morton , "Peter Zijlstra (Intel)" , Johannes Weiner , Kees Cook , Dominik Brodowski , Nicholas Piggin , Mathieu Desnoyers , Vasily Gorbik , Adrian Reber , Richard Guy Briggs , linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/4] init/Kconfig: add config support for detecting linker Message-ID: <20190208051444.GA9647@archlinux-ryzen> References: <20190207220155.81351-1-ndesaulniers@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190207220155.81351-1-ndesaulniers@google.com> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 07, 2019 at 02:01:49PM -0800, ndesaulniers@google.com wrote: > Similar to how we differentiate between CONFIG_CC_IS_GCC and > CONFIG_CC_IS_CLANG, add CONFIG_LD_IS_BFD, CONFIG_LD_IS_GOLD, and > CONFIG_LD_IS_LLD. > > This simiplifies patches to Makefiles that need to do different things > for different linkers. > > Cc: Nathan Chancellor > Cc: Sami Tolvanen > Signed-off-by: Nick Desaulniers Reviewed-by: Nathan Chancellor Tested-by: Nathan Chancellor > --- > init/Kconfig | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/init/Kconfig b/init/Kconfig > index c9386a365eea..b6046dcf7794 100644 > --- a/init/Kconfig > +++ b/init/Kconfig > @@ -26,6 +26,15 @@ config CLANG_VERSION > config CC_HAS_ASM_GOTO > def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC)) > > +config LD_IS_BFD > + def_bool $(success,$(LD) --version | head -n 1 | grep -q 'GNU ld') > + > +config LD_IS_GOLD > + def_bool $(success,$(LD) --version | head -n 1 | grep -q 'GNU gold') > + > +config LD_IS_LLD > + def_bool $(success,$(LD) --version | head -n 1 | grep -q 'LLD') > + > config CONSTRUCTORS > bool > depends on !UML > -- > 2.20.1.791.gb4d0f1c61a-goog >