On Mon, Dec 19, 2022 at 11:59:38AM +0800, Leo Yan wrote: > On Sun, Dec 18, 2022 at 06:35:09AM +0800, Changbin Du wrote: > > Remove the empty vmlinux.h if bpftool failed to dump btf info. > > The empty vmlinux.h can hide real error when reading output > > of make. > > > > This is done by adding .DELETE_ON_ERROR special target in related > > makefiles. > > We need to handle the same case for perf building, its makefile > linux/tools/perf/Makefile.perf also uses bpftool to generate > vmlinux.h, see: > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/perf/Makefile.perf#n1067 > > Please consider to use a separate patch to add the same change in > Makefile.perf? > It's alreay there. https://lore.kernel.org/lkml/20221217225151.90387-1-changbin.du@xxxxxxxxx/T/ > Thanks, > Leo > > > Signed-off-by: Changbin Du <changbin.du@xxxxxxxxx> > > --- > > tools/bpf/bpftool/Makefile | 3 +++ > > tools/testing/selftests/bpf/Makefile | 3 +++ > > 2 files changed, 6 insertions(+) > > > > diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile > > index 787b857d3fb5..313fd1b09189 100644 > > --- a/tools/bpf/bpftool/Makefile > > +++ b/tools/bpf/bpftool/Makefile > > @@ -289,3 +289,6 @@ FORCE: > > .PHONY: all FORCE bootstrap clean install-bin install uninstall > > .PHONY: doc doc-clean doc-install doc-uninstall > > .DEFAULT_GOAL := all > > + > > +# Delete partially updated (corrupted) files on error > > +.DELETE_ON_ERROR: > > diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile > > index c22c43bbee19..205e8c3c346a 100644 > > --- a/tools/testing/selftests/bpf/Makefile > > +++ b/tools/testing/selftests/bpf/Makefile > > @@ -626,3 +626,6 @@ EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ > > liburandom_read.so) > > > > .PHONY: docs docs-clean > > + > > +# Delete partially updated (corrupted) files on error > > +.DELETE_ON_ERROR: > > -- > > 2.37.2 > > -- Cheers, Changbin Du
