Symbol: PT_REGS_PARM4
tools/lib/bpf/bpf_tracing.h
799
#define ___bpf_kprobe_args4(x, args...) ___bpf_kprobe_args3(args), (unsigned long long)PT_REGS_PARM4(ctx)
tools/testing/selftests/bpf/progs/bpf_syscall_macro.c
50
bpf_probe_read_kernel(&arg4_cx, sizeof(arg4_cx), &PT_REGS_PARM4(real_regs));