linux/kernel/bpf/preload
Quentin Monnet 5f52d47c5f bpf/preload: Clean up .gitignore and "clean-files" target
kernel/bpf/preload/Makefile was recently updated to have it install
libbpf's headers locally instead of pulling them from tools/lib/bpf. But
two items still need to be addressed.

First, the local .gitignore file was not adjusted to ignore the files
generated in the new kernel/bpf/preload/libbpf output directory.

Second, the "clean-files" target is now incorrect. The old artefacts
names were not removed from the target, while the new ones were added
incorrectly. This is because "clean-files" expects names relative to
$(obj), but we passed the absolute path instead. This results in the
output and header-destination directories for libbpf (and their
contents) not being removed from kernel/bpf/preload on "make clean" from
the root of the repository.

This commit fixes both issues. Note that $(userprogs) needs not be added
to "clean-files", because the cleaning infrastructure already accounts
for it.

Cleaning the files properly also prevents make from printing the
following message, for builds coming after a "make clean":
"make[4]: Nothing to be done for 'install_headers'."

v2: Simplify the "clean-files" target.

Fixes: bf60791741 ("bpf: preload: Install libbpf headers when building")
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20211020094647.15564-1-quentin@isovalent.com
2021-10-20 10:39:04 -07:00
..
iterators bpftool: Add install-bin target to install binary only 2021-10-08 12:02:40 -07:00
.gitignore bpf/preload: Clean up .gitignore and "clean-files" target 2021-10-20 10:39:04 -07:00
bpf_preload_kern.c bpf: Fix umd memory leak in copy_process() 2021-03-19 22:23:19 +01:00
bpf_preload_umd_blob.S bpf: Add kernel module with user mode driver that populates bpffs. 2020-08-20 16:02:36 +02:00
bpf_preload.h bpf: Add kernel module with user mode driver that populates bpffs. 2020-08-20 16:02:36 +02:00
Kconfig bpf: BPF_PRELOAD depends on BPF_SYSCALL 2020-11-05 18:49:29 -08:00
Makefile bpf/preload: Clean up .gitignore and "clean-files" target 2021-10-20 10:39:04 -07:00