Re: [PATCH v8 00/16] Add support for Clang LTO
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From: Sami Tolvanen <samitolvanen@google.com>
Date: 2020-12-04 22:53:40
Also in:
linux-arch, linux-kbuild, linux-pci, lkml
On Thu, Dec 3, 2020 at 2:32 PM Nick Desaulniers [off-list ref] wrote:
So I'd recommend to Sami to simply make the Kconfig also depend on clang's integrated assembler (not just llvm-nm and llvm-ar).
Sure, sounds good to me. What's the preferred way to test for this in Kconfig? It looks like actually trying to test if we have an LLVM assembler (e.g. using $(as-instr,.section ".linker-options","e",@llvm_linker_options)) doesn't work as Kconfig doesn't pass -no-integrated-as to clang here. I could do something simple like $(success,echo $(LLVM) $(LLVM_IAS) | grep -q "1 1"). Thoughts? Sami _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel