netdev - Re: [PATCH bpf-next v3 2/2] selftests/bpf: Make install target copy test

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Date: Sun, 28 Jan 2024 13:20:54 +0100
From: Björn Töpel <bjorn@...nel.org>
To: Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann
 <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>, Mykola
 Lysenko <mykolal@...com>, bpf@...r.kernel.org, netdev@...r.kernel.org
Cc: Björn Töpel <bjorn@...osinc.com>,
 linux-kselftest@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next v3 2/2] selftests/bpf: Make install target copy
 test_progs extra files

Björn Töpel <bjorn@...nel.org> writes:

> Björn Töpel <bjorn@...nel.org> writes:
>
>> From: Björn Töpel <bjorn@...osinc.com>
>>
>> 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@...osinc.com>
>> ---
>> v3: Do not use hardcoded file names (Andrii)
>> v2: Added btf_dump_test_case files
>> ---
>>  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..d66c689f0f3c 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_FILE_GLOB)")	\
>
> Argh! Bad commit. EXTRA_FILE_GLOB should be EXTRA_FILES_GLOB. :-(
>
> LMK if you can fix it up, or if you want me to resubmit.

...and bpftool is missing.

I'll spin a v4. :-(