netdev - [PATCH v3 bpf-next 5/7] libbpf: move bpf_{helpers,endian,tracing}.h into libbpf

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Date:   Thu, 3 Oct 2019 14:28:54 -0700
From:   Andrii Nakryiko <andriin@...com>
To:     <bpf@...r.kernel.org>, <netdev@...r.kernel.org>, <ast@...com>,
        <daniel@...earbox.net>
CC:     <andrii.nakryiko@...il.com>, <kernel-team@...com>,
        Andrii Nakryiko <andriin@...com>
Subject: [PATCH v3 bpf-next 5/7] libbpf: move bpf_{helpers,endian,tracing}.h into libbpf

Move bpf_helpers.h, bpf_tracing.h, and bpf_endian.h into libbpf. Ensure
they are installed along the other libbpf headers. Also, adjust
selftests and samples include path to include libbpf now.

Acked-by: Song Liu <songliubraving@...com>
Signed-off-by: Andrii Nakryiko <andriin@...com>
---
 samples/bpf/Makefile                               | 2 +-
 tools/lib/bpf/Makefile                             | 5 ++++-
 tools/{testing/selftests => lib}/bpf/bpf_endian.h  | 0
 tools/{testing/selftests => lib}/bpf/bpf_helpers.h | 0
 tools/{testing/selftests => lib}/bpf/bpf_tracing.h | 0
 tools/testing/selftests/bpf/Makefile               | 2 +-
 6 files changed, 6 insertions(+), 3 deletions(-)
 rename tools/{testing/selftests => lib}/bpf/bpf_endian.h (100%)
 rename tools/{testing/selftests => lib}/bpf/bpf_helpers.h (100%)
 rename tools/{testing/selftests => lib}/bpf/bpf_tracing.h (100%)

diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 42b571cde177..ecb3535d91e3 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -283,7 +283,7 @@ $(obj)/hbm_edt_kern.o: $(src)/hbm.h $(src)/hbm_kern.h
 $(obj)/%.o: $(src)/%.c
 	@echo "  CLANG-bpf " $@
 	$(Q)$(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) -I$(obj) \
-		-I$(srctree)/tools/testing/selftests/bpf/ \
+		-I$(srctree)/tools/testing/selftests/bpf/ -I$(srctree)/tools/lib/bpf/ \
 		-D__KERNEL__ -D__BPF_TRACING__ -Wno-unused-value -Wno-pointer-sign \
 		-D__TARGET_ARCH_$(SRCARCH) -Wno-compare-distinct-pointer-types \
 		-Wno-gnu-variable-sized-type-not-at-end \
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index c6f94cffe06e..20b5b0ff5c73 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -240,7 +240,10 @@ install_headers:
 		$(call do_install,libbpf.h,$(prefix)/include/bpf,644); \
 		$(call do_install,btf.h,$(prefix)/include/bpf,644); \
 		$(call do_install,libbpf_util.h,$(prefix)/include/bpf,644); \
-		$(call do_install,xsk.h,$(prefix)/include/bpf,644);
+		$(call do_install,xsk.h,$(prefix)/include/bpf,644); \
+		$(call do_install,bpf_helpers.h,$(prefix)/include/bpf,644); \
+		$(call do_install,bpf_tracing.h,$(prefix)/include/bpf,644); \
+		$(call do_install,bpf_endian.h,$(prefix)/include/bpf,644);
 
 install_pkgconfig: $(PC_FILE)
 	$(call QUIET_INSTALL, $(PC_FILE)) \
diff --git a/tools/testing/selftests/bpf/bpf_endian.h b/tools/lib/bpf/bpf_endian.h
similarity index 100%
rename from tools/testing/selftests/bpf/bpf_endian.h
rename to tools/lib/bpf/bpf_endian.h
diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/lib/bpf/bpf_helpers.h
similarity index 100%
rename from tools/testing/selftests/bpf/bpf_helpers.h
rename to tools/lib/bpf/bpf_helpers.h
diff --git a/tools/testing/selftests/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h
similarity index 100%
rename from tools/testing/selftests/bpf/bpf_tracing.h
rename to tools/lib/bpf/bpf_tracing.h
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 6889c19a628c..b00a5d8046c7 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -148,7 +148,7 @@ $(shell $(1) -v -E - </dev/null 2>&1 \
 endef
 CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))
 BPF_CFLAGS = -I. -I./include/uapi -I../../../include/uapi \
-	     -I$(OUTPUT)/../usr/include -D__TARGET_ARCH_$(SRCARCH)
+	     -I$(BPFDIR) -I$(OUTPUT)/../usr/include -D__TARGET_ARCH_$(SRCARCH)
 
 CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
 	       -Wno-compare-distinct-pointer-types
-- 
2.17.1