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cdf9d099b9
Fixes issue where bpf.get_syscall_fnname() on riscv64 returns bare syscall name instead of the prefixed _riscv_sys variant, causing kprobe attachment failures. Upstream-Status: Submitted [https://github.com/iovisor/bcc/pull/5490] Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com> Signed-off-by: Khem Raj <raj.khem@gmail.com>
33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From da01655f0f335584867b3427005b95384499a020 Mon Sep 17 00:00:00 2001
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From: Harish Sadineni <Harish.Sadineni@windriver.com>
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Date: Sat, 7 Mar 2026 20:20:04 -0800
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Subject: [PATCH 2/2] Add riscv syscall prefix detection in C++ API
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Fixes issue where bpf.get_syscall_fnname() on riscv64 returns bare syscall
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name instead of the prefixed _riscv_sys variant, causing kprobe
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attachment failures.
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Upstream-Status: Submitted [https://github.com/iovisor/bcc/pull/5490]
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Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
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---
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src/cc/api/BPF.cc | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/src/cc/api/BPF.cc b/src/cc/api/BPF.cc
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index 11c6c542..e1df8208 100644
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--- a/src/cc/api/BPF.cc
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+++ b/src/cc/api/BPF.cc
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@@ -782,6 +782,8 @@ std::string BPF::get_syscall_fnname(const std::string& name) {
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syscall_prefix_.reset(new std::string("__x64_sys_"));
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else if (ksym.resolve_name(nullptr, "__arm64_sys_bpf", &addr))
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syscall_prefix_.reset(new std::string("__arm64_sys_"));
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+ else if (ksym.resolve_name(nullptr, "__riscv_sys_bpf", &addr))
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+ syscall_prefix_.reset(new std::string("__riscv_sys_"));
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else
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syscall_prefix_.reset(new std::string());
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}
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--
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2.49.0
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