[PATCH 0/6] tools/build: Allow versioning of all LLVM tools

[James Clark]

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 <james.clark@xxxxxxxxxx>
---
James Clark (6):
      tools/build: Allow versioning of all LLVM tools defined in Makefile.include
      tools/build: Indent if else blocks
      selftests: Remove unused LLD variable
      tools/build: Allow versioning LLVM readelf
      tools/build: selftests: Allow versioning LLVM lld
      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 |  9 ++---
 tools/testing/selftests/hid/Makefile |  7 ----
 9 files changed, 50 insertions(+), 73 deletions(-)
---
base-commit: 09d355618f7ccc27ffc7fc668b2e232872962079
change-id: 20260511-james-perf-llvm-version-43ab1cb5bc7d

Best regards,
-- 
James Clark <james.clark@xxxxxxxxxx>