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Message-Id: <1610535453-2352-2-git-send-email-yangtiezhu@loongson.cn>
Date: Wed, 13 Jan 2021 18:57:32 +0800
From: Tiezhu Yang <yangtiezhu@...ngson.cn>
To: Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Andrii Nakryiko <andrii@...nel.org>,
Martin KaFai Lau <kafai@...com>,
Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
John Fastabend <john.fastabend@...il.com>,
KP Singh <kpsingh@...nel.org>,
Nathan Chancellor <natechancellor@...il.com>,
Nick Desaulniers <ndesaulniers@...gle.com>
Cc: linux-sparse@...r.kernel.org, netdev@...r.kernel.org,
bpf@...r.kernel.org, clang-built-linux@...glegroups.com,
linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
Xuefeng Li <lixuefeng@...ngson.cn>
Subject: [PATCH bpf 1/2] samples/bpf: Set flag __SANE_USERSPACE_TYPES__ for MIPS to fix build warnings
MIPS needs __SANE_USERSPACE_TYPES__ before <linux/types.h> to select
'int-ll64.h' in arch/mips/include/uapi/asm/types.h and avoid compile
warnings when printing __u64 with %llu, %llx or %lld.
printf("0x%02x : %llu\n", key, value);
~~~^ ~~~~~
%lu
printf("%s/%llx;", sym->name, addr);
~~~^ ~~~~
%lx
printf(";%s %lld\n", key->waker, count);
~~~^ ~~~~~
%ld
Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
samples/bpf/Makefile | 4 ++++
tools/include/linux/types.h | 3 +++
2 files changed, 7 insertions(+)
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 26fc96c..27de306 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -183,6 +183,10 @@ BPF_EXTRA_CFLAGS := $(ARM_ARCH_SELECTOR)
TPROGS_CFLAGS += $(ARM_ARCH_SELECTOR)
endif
+ifeq ($(ARCH), mips)
+TPROGS_CFLAGS += -D__SANE_USERSPACE_TYPES__
+endif
+
TPROGS_CFLAGS += -Wall -O2
TPROGS_CFLAGS += -Wmissing-prototypes
TPROGS_CFLAGS += -Wstrict-prototypes
diff --git a/tools/include/linux/types.h b/tools/include/linux/types.h
index 154eb4e..e9c5a21 100644
--- a/tools/include/linux/types.h
+++ b/tools/include/linux/types.h
@@ -6,7 +6,10 @@
#include <stddef.h>
#include <stdint.h>
+#ifndef __SANE_USERSPACE_TYPES__
#define __SANE_USERSPACE_TYPES__ /* For PPC64, to get LL64 types */
+#endif
+
#include <asm/types.h>
#include <asm/posix_types.h>
--
2.1.0
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