On Fri, Jul 24, 2026 at 07:19:45PM +0200, Kumar Kartikeya Dwivedi wrote: > On Thu Jul 16, 2026 at 1:46 AM CEST, Namhyung Kim wrote: > > Hello BPF folks, > > > > On Wed, Jul 15, 2026 at 03:53:47PM +0100, James Clark wrote: > >> I ran into the build issue mentioned in the first commit, because using > >> an option like LLVM=-15 is a documented way to build [1], but only > >> some of the LLVM tools defined in tools/ support this. > >> > >> After fixing that, a lot of other tidyups fell out. I didn't go too far, > >> for example some selftests include tools/testing/selftests/lib.mk which > >> reimplements some of the LLVM_SUFFIX stuff, but other selftests include > >> tools/scripts/Makefile.include and I stopped before touching the former. > >> Some other non build scripts hard code toolchains and I didn't touch > >> those either, this change is only focused on things that already > >> include Makefile.include. > >> > >> [1]: Documentation/kbuild/llvm.rst > >> > >> Signed-off-by: James Clark <[email protected]> > >> --- > >> Changes in v4: > >> - Drop "tools/build: selftests: Allow versioning LLVM lld", clang > >> already picks the correct sibling lld version. (Sashiko) > >> - Link to v3: > >> https://lore.kernel.org/r/[email protected] > >> > >> Changes in v3: > >> - Add warning for empty $USE_LD > >> - Use $HOSTREADELF in bpf Makefile > >> - Rebase on v7.2-rc3 > >> - Link to v2: > >> https://lore.kernel.org/r/[email protected] > >> > >> Changes in v2: > >> - Fix selftests/bpf build. LLD needs to take the full path to be used > >> with -fuse-ld= > >> - Link to v1: > >> https://lore.kernel.org/r/[email protected] > >> > >> --- > >> James Clark (4): > >> tools/build: Allow versioning of all LLVM tools defined in > >> Makefile.include > >> tools/build: Indent if else blocks > >> tools/build: Allow versioning LLVM readelf > >> tools/build: selftests: Remove some duplicate toolchain definitions > >> > >> tools/bpf/resolve_btfids/Makefile | 3 -- > >> tools/lib/api/Makefile | 4 -- > >> tools/lib/bpf/Makefile | 8 ++-- > >> tools/lib/subcmd/Makefile | 4 -- > >> tools/lib/symbol/Makefile | 4 -- > >> tools/perf/Makefile.perf | 7 ---- > >> tools/scripts/Makefile.include | 77 > >> ++++++++++++++++++++---------------- > >> tools/testing/selftests/bpf/Makefile | 1 - > >> 8 files changed, 46 insertions(+), 62 deletions(-) > > > > Are you ok with this change and going through perf tree? > > > > Sorry for the delay, yes, feel free to take it through your tree.
Thanks, can I take it as your Acked-by? Namhyung
