Re: [RFC PATCH v2 09/31] kvx: Add build infrastructure
Jules Maselbas <[email protected]>
| Newsgroups | com.redhat.linux-audit,org.infradead.lists.linux-riscv,org.kernel.vger.bpf,org.kernel.vger.linux-arch,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-doc,org.kernel.vger.linux-kernel,org.kvack.linux-mm |
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On Fri, Jan 20, 2023 at 03:39:22PM +0100, Arnd Bergmann wrote: > On Fri, Jan 20, 2023, at 15:09, Yann Sionneau wrote: > > - Fix clean target raising an error from gcc (LIBGCC) > > I had not noticed this on v1 but: > > > +# Link with libgcc to get __div* builtins. > > +LIBGCC := $(shell $(CC) $(DEFAULT_OPTS) --print-libgcc-file-name) > > It's better to copy the bits of libgcc that you actually need > than to include the whole thing. The kernel is in a weird It was initialy using KCONFIG_CFLAGS which do not contains valid options when invoking the clean target. I am not exactly sure what's needed by gcc for --print-libgcc-file-name, my guess is that only the -march option matters, I will double check internally with compiler peoples. > state that is neither freestanding nor the normal libc based > environment, so we generally want full control over what is > used. This is particularly important for 32-bit architectures > that do not want the 64-bit division, but there are probably > enough other cases as well. > > Arnd > > > > -- Linux-audit mailing list [email protected] https://listman.redhat.com/mailman/listinfo/linux-audit