Messages in this thread |  | | Date | Mon, 23 Nov 2020 00:32:14 +0100 | From | Jiri Olsa <> | Subject | Re: [RFC 1/2] perf: support build BPF skeletons with perf |
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On Wed, Nov 18, 2020 at 08:50:45PM -0800, Song Liu wrote:
SNIP
> diff --git a/tools/perf/util/bpf_skel/.gitignore b/tools/perf/util/bpf_skel/.gitignore > new file mode 100644 > index 0000000000000..5263e9e6c5d83 > --- /dev/null > +++ b/tools/perf/util/bpf_skel/.gitignore > @@ -0,0 +1,3 @@ > +# SPDX-License-Identifier: GPL-2.0-only > +.tmp > +*.skel.h > \ No newline at end of file > diff --git a/tools/perf/util/bpf_skel/Makefile b/tools/perf/util/bpf_skel/Makefile > new file mode 100644 > index 0000000000000..853bece088f4b > --- /dev/null > +++ b/tools/perf/util/bpf_skel/Makefile > @@ -0,0 +1,71 @@ > +# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) > +SKEL_OUTPUT := $(abspath .) > +TMP_OUTPUT := $(abspath .tmp) > +CLANG ?= clang > +LLC ?= llc > +LLVM_STRIP ?= llvm-strip > +DEFAULT_BPFTOOL := $(TMP_OUTPUT)/sbin/bpftool > +BPFTOOL ?= $(DEFAULT_BPFTOOL) > +LIBBPF_SRC := $(abspath ../../../lib/bpf) > +BPFOBJ := $(TMP_OUTPUT)/libbpf.a > +BPF_INCLUDE := $(TMP_OUTPUT) > +INCLUDES := -I$(TMP_OUTPUT) -I$(BPF_INCLUDE) -I$(abspath ../../../lib) \ > + -I$(abspath ../../../include/uapi) > +CFLAGS := -g -Wall > + > +# Try to detect best kernel BTF source > +KERNEL_REL := $(shell uname -r) > +VMLINUX_BTF_PATHS := /sys/kernel/btf/vmlinux /boot/vmlinux-$(KERNEL_REL) > +VMLINUX_BTF_PATH := $(or $(VMLINUX_BTF),$(firstword \ > + $(wildcard $(VMLINUX_BTF_PATHS)))) > +ifeq ($(V),1) > +Q = > +msg = > +else > +Q = @ > +msg = @printf ' %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))"; > +MAKEFLAGS += --no-print-directory > +submake_extras := feature_display=0 > +endif
some of the above should already be defined in the base Makefile.perf we should use that, I think it'd fit better in the Makefile.perf itself
jirka
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