[PATCH 5.17 0529/1126] libbpf: Fix riscv register names

From: Greg Kroah-Hartman
Date: Tue Apr 05 2022 - 04:57:30 EST

From: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>

[ 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>
tools/lib/bpf/bpf_tracing.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

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