[PATCH bpf-next v4 2/3] selftests/bpf: Make install target copy test_progs extra files

[Björn Töpel]

From: Björn Töpel <bjorn@xxxxxxxxxxxx>

Currently, "make install" does not install the required test_progs
"extra files" (e.g. kernel modules, helper shell scripts, etc.) for
the BPF machine flavors (e.g. cpuv4).

Add the missing "extra files" dependencies to rsync, called from the
install target.

Unfortunately, kselftest does not use bash as the default shell, so
the globbering is limited. Blindly enabling "SHELL:=/bin/bash" for the
Makefile breaks in other places. Workaround by explicitly call
"/bin/bash" to expand the file globbing.

Signed-off-by: Björn Töpel <bjorn@xxxxxxxxxxxx>
---
 tools/testing/selftests/bpf/Makefile | 29 +++++++++++++++++-----------
 1 file changed, 18 insertions(+), 11 deletions(-)

diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 830a34f0aa37..c3c5b85f7dae 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -605,14 +605,15 @@ TRUNNER_EXTRA_SOURCES := test_progs.c		\
 			 json_writer.c 		\
 			 flow_dissector_load.h	\
 			 ip_check_defrag_frags.h
-TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko	\
-		       $(OUTPUT)/liburandom_read.so			\
-		       $(OUTPUT)/xdp_synproxy				\
-		       $(OUTPUT)/sign-file				\
-		       $(OUTPUT)/uprobe_multi				\
-		       ima_setup.sh 					\
-		       verify_sig_setup.sh				\
-		       $(wildcard progs/btf_dump_test_case_*.c)
+TRUNNER_PROGS_EXTRA_FILES:= $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko	\
+			    $(OUTPUT)/liburandom_read.so			\
+			    $(OUTPUT)/xdp_synproxy				\
+			    $(OUTPUT)/sign-file					\
+			    $(OUTPUT)/uprobe_multi				\
+			    ima_setup.sh					\
+			    verify_sig_setup.sh					\
+			    $(wildcard progs/btf_dump_test_case_*.c)
+TRUNNER_EXTRA_FILES := $(TRUNNER_PROGS_EXTRA_FILES)
 TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
 TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS
 $(eval $(call DEFINE_TEST_RUNNER,test_progs))
@@ -740,11 +741,17 @@ EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR)	\
 # Delete partially updated (corrupted) files on error
 .DELETE_ON_ERROR:
 
+space := $(subst ,, )
+comma := ,
+EXTRA_FILES_GLOB := {$(subst $(space),$(comma),$(notdir $(TRUNNER_PROGS_EXTRA_FILES)))}
 DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
 override define INSTALL_RULE
 	$(DEFAULT_INSTALL_RULE)
-	@for DIR in $(TEST_INST_SUBDIRS); do		  \
-		mkdir -p $(INSTALL_PATH)/$$DIR;   \
-		rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\
+	@for DIR in $(TEST_INST_SUBDIRS); do						\
+		mkdir -p $(INSTALL_PATH)/$$DIR;						\
+		rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;			\
+		rsync -a --copy-unsafe-links						\
+			$$(/bin/bash -c "echo $(OUTPUT)/$$DIR/$(EXTRA_FILES_GLOB)")	\
+			$(INSTALL_PATH)/$$DIR;						\
 	done
 endef
-- 
2.40.1