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[PATCH] bpf: sample: define aarch64 specific registers

Started byYang Shi <yang.shi@linaro.org>
First post2015-10-27 01:30 +0100
Last post2015-10-28 03:40 +0100
Articles 3 — 3 participants

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  [PATCH] bpf: sample: define aarch64 specific registers Yang Shi <yang.shi@linaro.org> - 2015-10-27 01:30 +0100
    Re: [PATCH] bpf: sample: define aarch64 specific registers Alexei Starovoitov <alexei.starovoitov@gmail.com> - 2015-10-27 04:30 +0100
    Re: [PATCH] bpf: sample: define aarch64 specific registers David Miller <davem@davemloft.net> - 2015-10-28 03:40 +0100

#1256360 — [PATCH] bpf: sample: define aarch64 specific registers

FromYang Shi <yang.shi@linaro.org>
Date2015-10-27 01:30 +0100
Subject[PATCH] bpf: sample: define aarch64 specific registers
Message-ID<qo0jg-6CI-13@gated-at.bofh.it>
Define aarch64 specific registers for building bpf samples correctly.

Signed-off-by: Yang Shi <yang.shi@linaro.org>
---
 samples/bpf/bpf_helpers.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/samples/bpf/bpf_helpers.h b/samples/bpf/bpf_helpers.h
index 3a44d3a..af44e56 100644
--- a/samples/bpf/bpf_helpers.h
+++ b/samples/bpf/bpf_helpers.h
@@ -86,5 +86,17 @@ static int (*bpf_l4_csum_replace)(void *ctx, int off, int from, int to, int flag
 #define PT_REGS_RC(x) ((x)->gprs[2])
 #define PT_REGS_SP(x) ((x)->gprs[15])
 
+#elif defined(__aarch64__)
+
+#define PT_REGS_PARM1(x) ((x)->regs[0])
+#define PT_REGS_PARM2(x) ((x)->regs[1])
+#define PT_REGS_PARM3(x) ((x)->regs[2])
+#define PT_REGS_PARM4(x) ((x)->regs[3])
+#define PT_REGS_PARM5(x) ((x)->regs[4])
+#define PT_REGS_RET(x) ((x)->regs[30])
+#define PT_REGS_FP(x) ((x)->regs[29]) /* Works only with CONFIG_FRAME_POINTER */
+#define PT_REGS_RC(x) ((x)->regs[0])
+#define PT_REGS_SP(x) ((x)->sp)
+
 #endif
 #endif
-- 
2.0.2

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#1256443

FromAlexei Starovoitov <alexei.starovoitov@gmail.com>
Date2015-10-27 04:30 +0100
Message-ID<qo37r-8tR-3@gated-at.bofh.it>
In reply to#1256360
On Mon, Oct 26, 2015 at 05:02:19PM -0700, Yang Shi wrote:
> Define aarch64 specific registers for building bpf samples correctly.
> 
> Signed-off-by: Yang Shi <yang.shi@linaro.org>

looks good to me.
Acked-by: Alexei Starovoitov <ast@kernel.org>

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#1257600

FromDavid Miller <davem@davemloft.net>
Date2015-10-28 03:40 +0100
Message-ID<qooOC-50K-5@gated-at.bofh.it>
In reply to#1256360
From: Yang Shi <yang.shi@linaro.org>
Date: Mon, 26 Oct 2015 17:02:19 -0700

> Define aarch64 specific registers for building bpf samples correctly.
> 
> Signed-off-by: Yang Shi <yang.shi@linaro.org>

Applied.
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