Symbol: PT_REGS_PARM2_CORE_SYSCALL
tools/lib/bpf/bpf_tracing.h
867
#define ___bpf_syswrap_args2(x, args...) ___bpf_syswrap_args1(args), (unsigned long long)PT_REGS_PARM2_CORE_SYSCALL(regs)
tools/testing/selftests/bpf/progs/bpf_syscall_macro.c
56
arg2_core = PT_REGS_PARM2_CORE_SYSCALL(real_regs);