From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
shuah@kernel.org, nathan@kernel.org, ndesaulniers@google.com
Cc: kafai@fb.com, songliubraving@fb.com, yhs@fb.com,
john.fastabend@gmail.com, kpsingh@kernel.org,
bpf@vger.kernel.org, linux-kselftest@vger.kernel.org,
llvm@lists.linux.dev,
Jean-Philippe Brucker <jean-philippe@linaro.org>
Subject: [PATCH bpf-next 5/6] tools/runqslower: Enable cross-building with clang
Date: Mon, 22 Nov 2021 19:20:19 +0000 [thread overview]
Message-ID: <20211122192019.1277299-6-jean-philippe@linaro.org> (raw)
In-Reply-To: <20211122192019.1277299-1-jean-philippe@linaro.org>
Cross-building using clang requires passing the "-target" flag rather
than using the CROSS_COMPILE prefix. Makefile.include transforms
CROSS_COMPILE into CLANG_CROSS_FLAGS. Add them to CFLAGS, and erase
CROSS_COMPILE for the bpftool build, since it needs to be executed on
the host.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
---
tools/bpf/runqslower/Makefile | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile
index 8791d0e2762b..da6de16a3dfb 100644
--- a/tools/bpf/runqslower/Makefile
+++ b/tools/bpf/runqslower/Makefile
@@ -12,7 +12,7 @@ BPFOBJ := $(BPFOBJ_OUTPUT)libbpf.a
BPF_DESTDIR := $(BPFOBJ_OUTPUT)
BPF_INCLUDE := $(BPF_DESTDIR)/include
INCLUDES := -I$(OUTPUT) -I$(BPF_INCLUDE) -I$(abspath ../../include/uapi)
-CFLAGS := -g -Wall
+CFLAGS := -g -Wall $(CLANG_CROSS_FLAGS)
# Try to detect best kernel BTF source
KERNEL_REL := $(shell uname -r)
@@ -88,4 +88,4 @@ $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(BPFOBJ_OU
$(DEFAULT_BPFTOOL): $(BPFOBJ) | $(BPFTOOL_OUTPUT)
$(Q)$(MAKE) $(submake_extras) -C ../bpftool OUTPUT=$(BPFTOOL_OUTPUT) \
- CC=$(HOSTCC) LD=$(HOSTLD)
+ ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD)
--
2.33.1
next prev parent reply other threads:[~2021-11-22 19:23 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-22 19:20 [PATCH bpf-next 0/6] tools/bpf: Enable cross-building with clang Jean-Philippe Brucker
2021-11-22 19:20 ` [PATCH bpf-next 1/6] tools: Help " Jean-Philippe Brucker
2021-11-22 19:20 ` [PATCH bpf-next 2/6] tools/resolve_btfids: Support cross-building the kernel " Jean-Philippe Brucker
2021-11-22 19:20 ` [PATCH bpf-next 3/6] tools/libbpf: Enable cross-building " Jean-Philippe Brucker
2021-11-29 23:51 ` Andrii Nakryiko
2021-11-22 19:20 ` [PATCH bpf-next 4/6] bpftool: " Jean-Philippe Brucker
2021-11-29 23:53 ` Andrii Nakryiko
2021-11-22 19:20 ` Jean-Philippe Brucker [this message]
2021-11-22 19:20 ` [PATCH bpf-next 6/6] selftests/bpf: " Jean-Philippe Brucker
2021-11-26 20:36 ` [PATCH bpf-next 0/6] tools/bpf: " Quentin Monnet
2021-11-26 21:15 ` Daniel Borkmann
2021-11-29 9:42 ` Jean-Philippe Brucker
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211122192019.1277299-6-jean-philippe@linaro.org \
--to=jean-philippe@linaro.org \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=john.fastabend@gmail.com \
--cc=kafai@fb.com \
--cc=kpsingh@kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=llvm@lists.linux.dev \
--cc=nathan@kernel.org \
--cc=ndesaulniers@google.com \
--cc=shuah@kernel.org \
--cc=songliubraving@fb.com \
--cc=yhs@fb.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.