Commit-ID: 971e827bffef781dd089a402fe602ff20c1f1819
Gitweb: http://git.kernel.org/tip/971e827bffef781dd089a402fe602ff20c1f1819
Author: Arnaldo Carvalho de Melo <[email protected]>
AuthorDate: Mon, 11 Jul 2016 16:38:05 -0300
Committer: Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Tue, 12 Jul 2016 15:20:32 -0300
tools lib bpf: Copy bpf.h and bpf_common.h from the kernel
To allow the build to complete on older systems, where those files are
either not uptodate, lacking some recent additions or not present at
all.
And check if the copy drifts from the kernel, as in this synthetic test:
BUILD: Doing 'make -j4' parallel build
Warning: tools/include/linux/bpf.h differs from kernel
Warning: tools/include/linux/bpf_common.h differs from kernel
Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
{include => tools/include}/uapi/linux/bpf.h | 0
{include => tools/include}/uapi/linux/bpf_common.h | 0
tools/lib/bpf/Makefile | 8 +++++++-
tools/perf/MANIFEST | 5 ++---
tools/perf/config/Makefile | 5 +++--
5 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
similarity index 100%
copy from include/uapi/linux/bpf.h
copy to tools/include/uapi/linux/bpf.h
diff --git a/include/uapi/linux/bpf_common.h
b/tools/include/uapi/linux/bpf_common.h
similarity index 100%
copy from include/uapi/linux/bpf_common.h
copy to tools/include/uapi/linux/bpf_common.h
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index fc1bc75..62d89d5 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -68,7 +68,7 @@ FEATURE_USER = .libbpf
FEATURE_TESTS = libelf libelf-getphdrnum libelf-mmap bpf
FEATURE_DISPLAY = libelf bpf
-INCLUDES = -I. -I$(srctree)/tools/include
-I$(srctree)/arch/$(ARCH)/include/uapi -I$(srctree)/include/uapi
+INCLUDES = -I. -I$(srctree)/tools/include
-I$(srctree)/tools/arch/$(ARCH)/include/uapi -I$(srctree)/tools/include/uapi
FEATURE_CHECK_CFLAGS-bpf = $(INCLUDES)
check_feat := 1
@@ -154,6 +154,12 @@ all: fixdep $(VERSION_FILES) all_cmd
all_cmd: $(CMD_TARGETS)
$(BPF_IN): force elfdep bpfdep
+ @(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: tools/include/uapi/linux/bpf.h differs from kernel" >&2
)) || true
+ @(test -f ../../../include/uapi/linux/bpf_common.h -a -f
../../../include/uapi/linux/bpf_common.h && ( \
+ (diff -B ../../include/uapi/linux/bpf_common.h
../../../include/uapi/linux/bpf_common.h >/dev/null) || \
+ echo "Warning: tools/include/uapi/linux/bpf_common.h differs from
kernel" >&2 )) || true
$(Q)$(MAKE) $(build)=libbpf
$(OUTPUT)libbpf.so: $(BPF_IN)
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index cf85d1c..a300cbb 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -23,7 +23,6 @@ tools/build
tools/arch/x86/include/asm/atomic.h
tools/arch/x86/include/asm/rmwcc.h
tools/lib/traceevent
-tools/lib/bpf
tools/lib/api
tools/lib/bpf
tools/lib/subcmd
@@ -60,6 +59,8 @@ tools/include/linux/hash.h
tools/include/linux/kernel.h
tools/include/linux/list.h
tools/include/linux/log2.h
+tools/include/uapi/linux/bpf.h
+tools/include/uapi/linux/bpf_common.h
tools/include/uapi/linux/perf_event.h
tools/include/linux/poison.h
tools/include/linux/rbtree.h
@@ -82,8 +83,6 @@ arch/*/include/uapi/asm/unistd*.h
arch/*/include/uapi/asm/perf_regs.h
include/linux/poison.h
include/linux/hw_breakpoint.h
-include/uapi/linux/bpf.h
-include/uapi/linux/bpf_common.h
include/uapi/linux/const.h
include/uapi/linux/swab.h
include/uapi/linux/hw_breakpoint.h
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index bbb2210..d629e5f 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -115,7 +115,7 @@ endif
FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS)
-lbabeltrace-ctf
-FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include
-I$(srctree)/arch/$(ARCH)/include/uapi -I$(srctree)/include/uapi
+FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include
-I$(srctree)/tools/arch/$(ARCH)/include/uapi -I$(srctree)/tools/include/uapi
# include ARCH specific config
-include $(src-perf)/arch/$(ARCH)/Makefile
@@ -210,7 +210,8 @@ CFLAGS += -I$(srctree)/tools/include/uapi
CFLAGS += -I$(srctree)/tools/include/
CFLAGS += -I$(srctree)/arch/$(ARCH)/include/uapi
CFLAGS += -I$(srctree)/arch/$(ARCH)/include
-CFLAGS += -I$(srctree)/tools/arch/$(ARCH)/include
+CFLAGS += -I$(srctree)/tools/arch/$(ARCH)/include/uapi
+CFLAGS += -I$(srctree)/tools/arch/$(ARCH)/
CFLAGS += -I$(srctree)/include/uapi
CFLAGS += -I$(srctree)/include
