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Message-ID: <875xzex50m.fsf@all.your.base.are.belong.to.us>
Date: Sat, 27 Jan 2024 14:47:05 +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:

> 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.


Björn

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