diff options
author | Namhyung Kim <namhyung@kernel.org> | 2024-05-21 10:07:40 -0700 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2024-06-05 11:33:00 -0300 |
commit | ca9680821dfec73c9100860bda4fab1f1309722e (patch) | |
tree | 181f96f89f2f88b2550b6379242e70e64e08f646 /drivers/input/tablet | |
parent | 5b3cde198878b2f3269d5e7efbc0d514899b1fd8 (diff) |
perf bpf: Fix handling of minimal vmlinux.h file when interrupting the build
Ingo reported that he was seeing these when hitting Control+C during a
perf tools build:
Makefile.perf:1149: *** Missing bpftool input for generating vmlinux.h. Stop.
The failure happens when you don't have vmlinux.h or vmlinux with BTF.
ifeq ($(VMLINUX_H),)
ifeq ($(VMLINUX_BTF),)
$(error Missing bpftool input for generating vmlinux.h)
endif
endif
VMLINUX_BTF can be empty if you didn't build a kernel or it doesn't have
a BTF section and the current kernel also has no BTF. This is totally
ok.
But VMLINUX_H should be set to the minimal version in the source tree
(unless you overwrite it manually) when you don't pass GEN_VMLINUX_H=1
(which requires VMLINUX_BTF should not be empty). The problem is that
it's defined in Makefile.config which is not included for `make clean`.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Link: http://lore.kernel.org/lkml/CAM9d7ch5HTr+k+_GpbMrX0HUo5BZ11byh1xq0Two7B7RQACuNw@mail.gmail.com
Link: http://lore.kernel.org/lkml/ZjssGrj+abyC6mYP@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/input/tablet')
0 files changed, 0 insertions, 0 deletions