From: Yixun Lan dlan@gentoo.org
[ Upstream commit 935dc35c75318fa213d26808ad8bb130fb0b486e ]
According to the RISC-V calling convention register usage here [0], a0 is used as return value register, so rename it to make it consistent with the spec.
[0] section 18.2, table 18.2 https://riscv.org/wp-content/uploads/2015/01/riscv-calling.pdf
Fixes: 589fed479ba1 ("riscv, libbpf: Add RISC-V (RV64) support to bpf_tracing.h") Signed-off-by: Yixun Lan dlan@gentoo.org Signed-off-by: Daniel Borkmann daniel@iogearbox.net Acked-by: Björn Töpel bjorn@kernel.org Acked-by: Amjad OULED-AMEUR ouledameur.amjad@gmail.com Link: https://lore.kernel.org/bpf/20220706140204.47926-1-dlan@gentoo.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/lib/bpf/bpf_tracing.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 01ce121c302d..11f9096407fc 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -233,7 +233,7 @@ struct pt_regs___arm64 { #define __PT_PARM5_REG a4 #define __PT_RET_REG ra #define __PT_FP_REG s0 -#define __PT_RC_REG a5 +#define __PT_RC_REG a0 #define __PT_SP_REG sp #define __PT_IP_REG pc /* riscv does not select ARCH_HAS_SYSCALL_WRAPPER. */