From: Tom Stellard <[email protected]> [redhat] spec: Add %bcond_with toolchain_clang option
This option can be enabled by passing --with toolchain_clang to rpmbuild or mock. Enabling this option will cause the kernel to be built with clang instead of gcc. Signed-off-by: Tom Stellard <[email protected]> diff a/redhat/kernel.spec.template b/redhat/kernel.spec.template --- a/redhat/kernel.spec.template +++ b/redhat/kernel.spec.template @@ -6,6 +6,12 @@ # Disable LTO in userspace packages. %global _lto_cflags %{nil} +# Option to enable compiling with clang instead of gcc. +%bcond_with toolchain_clang + +%if %{with toolchain_clang} +%global toolchain clang +%endif # Cross compile on copr for arm # See https://bugzilla.redhat.com/1879599 @@ -228,6 +234,10 @@ Summary: The Linux kernel %define make_opts -s %endif +%if %{with toolchain_clang} +%global make_opts %{make_opts} HOSTCC=clang CC=clang +%endif + # turn off debug kernel and kabichk for gcov builds %if %{with_gcov} %define with_debug 0 @@ -432,6 +442,14 @@ Summary: The Linux kernel %define with_configchecks 0 %endif +# Setting the compiler to clang enables some different config options +# than what is expected, so disable this check for now. +# TODO: What's the best way to fix this? Do wee need a different set of +# configs for clang? +%if %{with toolchain_clang} +%define with_configchecks 0 +%endif + # To temporarily exclude an architecture from being built, add it to # %%nobuildarches. Do _NOT_ use the ExclusiveArch: line, because if we # don't build kernel-headers then the new build system will no longer let @@ -596,6 +614,10 @@ BuildRequires: xmlto BuildRequires: asciidoc %endif +%if %{with toolchain_clang} +BuildRequires: clang +%endif + # Because this is the kernel, it's hard to get a single upstream URL # to represent the base without needing to do a bunch of patching. This # tarball is generated from a src-git tree. If you want to see the -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/894 _______________________________________________ kernel mailing list -- [email protected] To unsubscribe send an email to [email protected] Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/[email protected] Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
