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authorPu Lehui <pulehui@huawei.com>2022-07-14 04:46:11 +0200
committerAndrii Nakryiko <andrii@kernel.org>2022-07-15 21:01:30 +0200
commit3a2a58c4479a6acd4421db41e1e1ffd804763a5a (patch)
tree3c70ac70b4b2944857170c9df83807b1b05aeb50 /tools/bpf
parentsamples: bpf: Fix cross-compiling error by using bootstrap bpftool (diff)
downloadlinux-3a2a58c4479a6acd4421db41e1e1ffd804763a5a.tar.xz
linux-3a2a58c4479a6acd4421db41e1e1ffd804763a5a.zip
tools: runqslower: Build and use lightweight bootstrap version of bpftool
tools/runqslower use bpftool for vmlinux.h, skeleton, and static linking only. So we can use lightweight bootstrap version of bpftool to handle these, and it will be faster. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Pu Lehui <pulehui@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220714024612.944071-3-pulehui@huawei.com
Diffstat (limited to 'tools/bpf')
-rw-r--r--tools/bpf/runqslower/Makefile7
1 files changed, 3 insertions, 4 deletions
diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile
index da6de16a3dfb..8b3d87b82b7a 100644
--- a/tools/bpf/runqslower/Makefile
+++ b/tools/bpf/runqslower/Makefile
@@ -4,7 +4,7 @@ include ../../scripts/Makefile.include
OUTPUT ?= $(abspath .output)/
BPFTOOL_OUTPUT := $(OUTPUT)bpftool/
-DEFAULT_BPFTOOL := $(BPFTOOL_OUTPUT)bpftool
+DEFAULT_BPFTOOL := $(BPFTOOL_OUTPUT)bootstrap/bpftool
BPFTOOL ?= $(DEFAULT_BPFTOOL)
LIBBPF_SRC := $(abspath ../../lib/bpf)
BPFOBJ_OUTPUT := $(OUTPUT)libbpf/
@@ -86,6 +86,5 @@ $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(BPFOBJ_OU
$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(BPFOBJ_OUTPUT) \
DESTDIR=$(BPFOBJ_OUTPUT) prefix= $(abspath $@) install_headers
-$(DEFAULT_BPFTOOL): $(BPFOBJ) | $(BPFTOOL_OUTPUT)
- $(Q)$(MAKE) $(submake_extras) -C ../bpftool OUTPUT=$(BPFTOOL_OUTPUT) \
- ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD)
+$(DEFAULT_BPFTOOL): | $(BPFTOOL_OUTPUT)
+ $(Q)$(MAKE) $(submake_extras) -C ../bpftool OUTPUT=$(BPFTOOL_OUTPUT) bootstrap