Commit a9eb048d authored by Toke Høiland-Jørgensen's avatar Toke Høiland-Jørgensen Committed by Alexei Starovoitov
Browse files

libbpf: Add cscope and tags targets to Makefile 



Using cscope and/or TAGS files for navigating the source code is useful.
Add simple targets to the Makefile to generate the index files for both
tools.

Signed-off-by: default avatarToke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Tested-by: default avatarAndrii Nakryiko <andriin@fb.com>
Acked-by: default avatarAndrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20191004153444.1711278-1-toke@redhat.com
parent b84fbfe2

tools/lib/bpf/.gitignore

+3 −0
Original line number Diff line number Diff line
@@ -3,3 +3,6 @@ libbpf.pc 
FEATURE-DUMP.libbpf

test_libbpf

libbpf.so.*

TAGS

tags

cscope.*

tools/lib/bpf/Makefile

+11 −1
Original line number Diff line number Diff line
@@ -133,6 +133,8 @@ LIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET)) 
LIB_FILE	:= $(addprefix $(OUTPUT),$(LIB_FILE))

PC_FILE		:= $(addprefix $(OUTPUT),$(PC_FILE))



TAGS_PROG := $(if $(shell which etags 2>/dev/null),etags,ctags)



GLOBAL_SYM_COUNT = $(shell readelf -s --wide $(BPF_IN) | \

			   cut -d "@" -f1 | sed 's/_v[0-9]_[0-9]_[0-9].*//' | \

			   awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$8}' | \
@@ -262,7 +264,7 @@ clean: 






PHONY += force elfdep bpfdep

PHONY += force elfdep bpfdep cscope tags

force:



elfdep:
@@ -271,6 +273,14 @@ elfdep: 
bpfdep:

	@if [ "$(feature-bpf)" != "1" ]; then echo "BPF API too old"; exit 1 ; fi



cscope:

	ls *.c *.h > cscope.files

	cscope -b -q -I $(srctree)/include -f cscope.out



tags:

	rm -f TAGS tags

	ls *.c *.h | xargs $(TAGS_PROG) -a



# Declare the contents of the .PHONY variable as phony.  We keep that

# information in a variable so we can use it in if_changed and friends.

.PHONY: $(PHONY)

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