Commit e01a75c1 authored by Andrii Nakryiko's avatar Andrii Nakryiko Committed by Daniel Borkmann

libbpf: Move bpf_{helpers, helper_defs, endian, tracing}.h into libbpf

Move bpf_helpers.h, bpf_tracing.h, and bpf_endian.h into libbpf. Move
bpf_helper_defs.h generation into libbpf's Makefile. Ensure all those
headers are installed along the other libbpf headers. Also, adjust
selftests and samples include path to include libbpf now.
Signed-off-by: default avatarAndrii Nakryiko <andriin@fb.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Acked-by: default avatarSong Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20191008175942.1769476-6-andriin@fb.com
parent 3ac4dbe3
......@@ -282,7 +282,7 @@ $(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 \
......
......@@ -6,3 +6,4 @@ libbpf.so.*
TAGS
tags
cscope.*
/bpf_helper_defs.h
......@@ -157,7 +157,7 @@ all: fixdep
all_cmd: $(CMD_TARGETS) check
$(BPF_IN): force elfdep bpfdep
$(BPF_IN): force elfdep bpfdep bpf_helper_defs.h
@(test -f ../../include/uapi/linux/bpf.h -a -f ../../../include/uapi/linux/bpf.h && ( \
(diff -B ../../include/uapi/linux/bpf.h ../../../include/uapi/linux/bpf.h >/dev/null) || \
echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h'" >&2 )) || true
......@@ -175,6 +175,10 @@ $(BPF_IN): force elfdep bpfdep
echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h' differs from latest version at 'include/uapi/linux/if_xdp.h'" >&2 )) || true
$(Q)$(MAKE) $(build)=libbpf
bpf_helper_defs.h: $(srctree)/include/uapi/linux/bpf.h
$(Q)$(srctree)/scripts/bpf_helpers_doc.py --header \
--file $(srctree)/include/uapi/linux/bpf.h > bpf_helper_defs.h
$(OUTPUT)libbpf.so: $(OUTPUT)libbpf.so.$(LIBBPF_VERSION)
$(OUTPUT)libbpf.so.$(LIBBPF_VERSION): $(BPF_IN)
......@@ -236,13 +240,17 @@ install_lib: all_cmd
$(call do_install_mkdir,$(libdir_SQ)); \
cp -fpR $(LIB_FILE) $(DESTDIR)$(libdir_SQ)
install_headers:
install_headers: bpf_helper_defs.h
$(call QUIET_INSTALL, headers) \
$(call do_install,bpf.h,$(prefix)/include/bpf,644); \
$(call do_install,libbpf.h,$(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); \
$(call do_install,bpf_helper_defs.h,$(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)) \
......@@ -259,7 +267,7 @@ config-clean:
clean:
$(call QUIET_CLEAN, libbpf) $(RM) $(TARGETS) $(CXX_TEST_TARGET) \
*.o *~ *.a *.so *.so.$(LIBBPF_MAJOR_VERSION) .*.d .*.cmd \
*.pc LIBBPF-CFLAGS
*.pc LIBBPF-CFLAGS bpf_helper_defs.h
$(call QUIET_CLEAN, core-gen) $(RM) $(OUTPUT)FEATURE-DUMP.libbpf
......
......@@ -39,4 +39,3 @@ libbpf.so.*
test_hashmap
test_btf_dump
xdping
/bpf_helper_defs.h
......@@ -90,10 +90,6 @@ include ../lib.mk
TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
all: $(TEST_CUSTOM_PROGS)
bpf_helper_defs.h: $(APIDIR)/linux/bpf.h
$(BPFDIR)/../../../scripts/bpf_helpers_doc.py --header \
--file $(APIDIR)/linux/bpf.h > bpf_helper_defs.h
$(OUTPUT)/urandom_read: $(OUTPUT)/%: %.c
$(CC) -o $@ $< -Wl,--build-id
......@@ -127,7 +123,7 @@ $(OUTPUT)/test_cgroup_attach: cgroup_helpers.c
# force a rebuild of BPFOBJ when its dependencies are updated
force:
$(BPFOBJ): force bpf_helper_defs.h
$(BPFOBJ): force
$(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/
PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1)
......@@ -152,7 +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
......@@ -323,4 +319,4 @@ $(VERIFIER_TESTS_H): $(VERIFIER_TEST_FILES) | $(VERIFIER_TESTS_DIR)
EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(ALU32_BUILD_DIR) $(BPF_GCC_BUILD_DIR) \
$(VERIFIER_TESTS_H) $(PROG_TESTS_H) $(MAP_TESTS_H) \
feature bpf_helper_defs.h
feature
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