This is a note to let you know that I've just added the patch titled libbpf: Fix riscv register names to the 5.17-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: libbpf-fix-riscv-register-names.patch and it can be found in the queue-5.17 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit d24ca0409d6e0a3ff414a862063ac7c6dad4b542 Author: Ilya Leoshkevich <iii@xxxxxxxxxxxxx> Date: Wed Feb 9 03:17:40 2022 +0100 libbpf: Fix riscv register names [ Upstream commit 5c101153bfd67387ba159b7864176217a40757da ] riscv registers are accessed via struct user_regs_struct, not struct pt_regs. The program counter member in this struct is called pc, not epc. The frame pointer is called s0, not fp. Fixes: 3cc31d794097 ("libbpf: Normalize PT_REGS_xxx() macro definitions") Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx> Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx> Link: https://lore.kernel.org/bpf/20220209021745.2215452-6-iii@xxxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 90f56b0f585f..e1b505606882 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -206,10 +206,10 @@ #define __PT_PARM4_REG a3 #define __PT_PARM5_REG a4 #define __PT_RET_REG ra -#define __PT_FP_REG fp +#define __PT_FP_REG s0 #define __PT_RC_REG a5 #define __PT_SP_REG sp -#define __PT_IP_REG epc +#define __PT_IP_REG pc #endif