abf7bad9c8
Signed-off-by: zhang-mingyi66 <zhangmingyi5@huawei.com> (cherry picked from commit c93fa88cb0c11cd67c85e48654dc403447bc9df0)
33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From 81ac790dc831a5b753b310138f2201f87b55169b Mon Sep 17 00:00:00 2001
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From: Shuyi Cheng <chengshuyi@linux.alibaba.com>
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Date: Sun, 8 Sep 2024 17:23:53 +0800
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Subject: [PATCH] libbpf: Fixed getting wrong return address on arm64
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architecture
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ARM64 has a separate lr register to store the return address, so here
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you only need to read the lr register to get the return address, no need
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to dereference it again.
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Signed-off-by: Shuyi Cheng <chengshuyi@linux.alibaba.com>
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Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
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Link: https://lore.kernel.org/bpf/1725787433-77262-1-git-send-email-chengshuyi@linux.alibaba.com
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---
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src/bpf_tracing.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/bpf_tracing.h b/src/bpf_tracing.h
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index 4eab132a9..aa3b04f55 100644
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--- a/src/bpf_tracing.h
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+++ b/src/bpf_tracing.h
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@@ -522,7 +522,7 @@ struct pt_regs;
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#define BPF_KPROBE_READ_RET_IP(ip, ctx) ({ (ip) = (ctx)->link; })
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#define BPF_KRETPROBE_READ_RET_IP BPF_KPROBE_READ_RET_IP
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-#elif defined(bpf_target_sparc)
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+#elif defined(bpf_target_sparc) || defined(bpf_target_arm64)
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#define BPF_KPROBE_READ_RET_IP(ip, ctx) ({ (ip) = PT_REGS_RET(ctx); })
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#define BPF_KRETPROBE_READ_RET_IP BPF_KPROBE_READ_RET_IP
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