On Wed, Apr 24, 2019 at 07:12:17AM -0700, Tony Lindgren wrote: > * Stefan Agner <[email protected]> [190423 20:20]: > > On 11.04.2019 09:54, Stefan Agner wrote: > > > The LLVM Target parser currently does not allow to specify the security > > > extension as part of -march (see also LLVM Bug 40186 [0]). When trying > > > to use Clang with LLVM's integrated assembler, this leads to build > > > errors such as this: > > > clang-8: error: the clang compiler does not support > > > '-Wa,-march=armv7-a+sec' > > > > > > Use ".arch_extension sec" to enable the security extension in a more > > > portable fasion. Also make sure to use ".arch armv7-a" in case a v6/v7 > > > multi-platform kernel is being built. > > > > > > Note that this is technically not exactly the same as the old code > > > checked for availabilty of the security extension by calling as-instr. > > > However, there are already other sites which use ".arch_extension sec" > > > unconditionally, hence de-facto we need an assembler capable of > > > ".arch_extension sec" already today (arch/arm/mm/proc-v7.S). The > > > arch extension "sec" is available since binutils 2.21 according to > > > its documentation [1]. > > > > > > [0] https://bugs.llvm.org/show_bug.cgi?id=40186 > > > [1] https://sourceware.org/binutils/docs-2.21/as/ARM-Options.html > > > > > > Signed-off-by: Stefan Agner <[email protected]> > > > Acked-by: Mans Rullgard <[email protected]> > > > Acked-by: Arnd Bergmann <[email protected]> > > > Acked-by: Krzysztof Kozlowski <[email protected]> > > > > Arnd, Tony, > > > > Patch 3 and 4 got merged by Gregory. I think the other two patches are > > ready to be merged too. I think they should go in together to avoid > > merge conflicts. Tony, if you agree, can you Ack patch 2 so they can get > > merged through arm-soc? > > Sure I just acked it for you.
Hi, These came in right around when I did the last patches for this merge window. I'll apply them once -rc1 is out for next release. -Olof
