On arm64, the first syscall argument should be accessed via orig_x0 (see arch/arm64/include/asm/syscall.h). Currently regs[0] is used instead, leading to bpf_syscall_macro test failure. Reported-by: Heiko Carstens <hca@xxxxxxxxxxxxx> Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx> --- tools/lib/bpf/bpf_tracing.h | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 08d2990c006f..317bee0fd8e4 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -145,6 +145,7 @@ /* arm64 provides struct user_pt_regs instead of struct pt_regs to userspace */ #define __PT_REGS_CAST(x) ((const struct user_pt_regs *)(x)) #define __PT_PARM1_REG regs[0] +#define __PT_PARM1_REG_SYSCALL orig_x0 #define __PT_PARM2_REG regs[1] #define __PT_PARM3_REG regs[2] #define __PT_PARM4_REG regs[3] -- 2.34.1
