linux/tools/scripts
Tomas Glozar 814d051ebe tools/build: Use SYSTEM_BPFTOOL for system bpftool
The feature test for system bpftool uses BPFTOOL as the variable to set
its path, defaulting to just "bpftool" if not set by the user.

This conflicts with selftests and a few other utilities, which expect
BPFTOOL to be set to the in-tree bpftool path by default. For example,
bpftool selftests fail to build:

$ make -C tools/testing/selftests/bpf/
make: Entering directory '/home/tglozar/dev/linux/tools/testing/selftests/bpf'

make: *** No rule to make target 'bpftool', needed by '/home/tglozar/dev/linux/tools/testing/selftests/bpf/tools/include/vmlinux.h'.  Stop.
make: Leaving directory '/home/tglozar/dev/linux/tools/testing/selftests/bpf'

Fix the problem by renaming the variable used for system bpftool from
BPFTOOL to SYSTEM_BPFTOOL, so that the new usage does not conflict with
the existing one of BPFTOOL.

Cc: John Kacur <jkacur@redhat.com>
Cc: Luis Goncalves <lgoncalv@redhat.com>
Link: https://lore.kernel.org/20250326004018.248357-1-tglozar@redhat.com
Fixes: 8a635c3856 ("tools/build: Add bpftool-skeletons feature test")
Closes: https://lore.kernel.org/linux-kernel/5df6968a-2e5f-468e-b457-fc201535dd4c@linux.ibm.com/
Reported-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Suggested-by: Quentin Monnet <qmo@kernel.org>
Acked-by: Quentin Monnet <qmo@kernel.org>
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2025-03-26 10:31:31 -04:00
..
Makefile.arch tools: Override makefile ARCH variable if defined, but empty 2024-11-29 17:04:25 +01:00
Makefile.include tools/build: Use SYSTEM_BPFTOOL for system bpftool 2025-03-26 10:31:31 -04:00
syscall.tbl perf tools: Create generic syscall table support 2025-01-09 12:49:49 -03:00
utilities.mak tools build: Add 3-component logical version comparators 2023-08-03 16:59:40 -03:00