// SPDX-License-Identifier: GPL-2.0/* * Copyright (C) 2024 Google LLC * * Example for symbol pointers. When compiled with Clang, gendwarfkyms * uses a symbol pointer for `f`. * * $ clang -g -c examples/symbolptr.c -o examples/symbolptr.o * $ echo -e "f\ng\np" | ./gendwarfksyms -d examples/symbolptr.o */ /* Kernel macros for userspace testing. */#ifndef __used#define __used __attribute__((__used__))#endif#ifndef __section#define __section(section) __attribute__((__section__(section)))#endif #define __GENDWARFKSYMS_EXPORT(sym)				\	static typeof(sym) *__gendwarfksyms_ptr_##sym __used	\		__section(".discard.gendwarfksyms") = &sym; extern void f(unsigned int arg);void g(int *arg);void g(int *arg) {} struct s;extern struct s *p; __GENDWARFKSYMS_EXPORT(f);__GENDWARFKSYMS_EXPORT(g);__GENDWARFKSYMS_EXPORT(p);