/* SPDX-License-Identifier: GPL-2.0-or-later *//* * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com> */ #ifndef _WARN_H#define _WARN_H #include <stdlib.h>#include <string.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <objtool/builtin.h>#include <objtool/elf.h> extern const char *objname; static inline char *offstr(struct section *sec, unsigned long offset){	bool is_text = (sec->sh.sh_flags & SHF_EXECINSTR);	struct symbol *sym = NULL;	char *str;	int len; 	if (is_text)		sym = find_func_containing(sec, offset);	if (!sym)		sym = find_symbol_containing(sec, offset); 	if (sym) {		str = malloc(strlen(sym->name) + strlen(sec->name) + 40);		len = sprintf(str, "%s+0x%lx", sym->name, offset - sym->offset);		if (opts.sec_address)			sprintf(str+len, " (%s+0x%lx)", sec->name, offset);	} else {		str = malloc(strlen(sec->name) + 20);		sprintf(str, "%s+0x%lx", sec->name, offset);	} 	return str;} #define WARN(format, ...)				\	fprintf(stderr,					\		"%s: warning: objtool: " format "\n",	\		objname, ##__VA_ARGS__) #define WARN_FUNC(format, sec, offset, ...)		\({							\	char *_str = offstr(sec, offset);		\	WARN("%s: " format, _str, ##__VA_ARGS__);	\	free(_str);					\}) #define WARN_INSN(insn, format, ...)					\({									\	struct instruction *_insn = (insn);				\	if (!_insn->sym || !_insn->sym->warned)				\		WARN_FUNC(format, _insn->sec, _insn->offset,		\			  ##__VA_ARGS__);				\	if (_insn->sym)							\		_insn->sym->warned = 1;					\}) #define BT_INSN(insn, format, ...)				\({								\	if (opts.verbose || opts.backtrace) {			\		struct instruction *_insn = (insn);		\		char *_str = offstr(_insn->sec, _insn->offset); \		WARN("  %s: " format, _str, ##__VA_ARGS__);	\		free(_str);					\	}							\}) #define WARN_ELF(format, ...)				\	WARN(format ": %s", ##__VA_ARGS__, elf_errmsg(-1)) #endif /* _WARN_H */