[PATCH] bpf: sample: define aarch64 specific registers

Subsystems: bpf [general] (safe dynamic programs and tools), the rest

STALE3968d

3 messages, 3 authors, 2015-10-28 · open the first message on its own page

[PATCH] bpf: sample: define aarch64 specific registers

From: Yang Shi <hidden>
Date: 2015-10-27 00:20:21

Define aarch64 specific registers for building bpf samples correctly.

Signed-off-by: Yang Shi <redacted>
---
 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

Re: [PATCH] bpf: sample: define aarch64 specific registers

From: Alexei Starovoitov <hidden>
Date: 2015-10-27 03:22:44

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

Re: [PATCH] bpf: sample: define aarch64 specific registers

From: David Miller <davem@davemloft.net>
Date: 2015-10-28 02:34:46

From: Yang Shi <redacted>
Date: Mon, 26 Oct 2015 17:02:19 -0700
Define aarch64 specific registers for building bpf samples correctly.

Signed-off-by: Yang Shi <redacted>
Applied.
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