18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com> 48c2ecf20Sopenharmony_ci */ 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci#ifndef _WARN_H 78c2ecf20Sopenharmony_ci#define _WARN_H 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci#include <stdlib.h> 108c2ecf20Sopenharmony_ci#include <string.h> 118c2ecf20Sopenharmony_ci#include <sys/types.h> 128c2ecf20Sopenharmony_ci#include <sys/stat.h> 138c2ecf20Sopenharmony_ci#include <fcntl.h> 148c2ecf20Sopenharmony_ci#include "elf.h" 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ciextern const char *objname; 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_cistatic inline char *offstr(struct section *sec, unsigned long offset) 198c2ecf20Sopenharmony_ci{ 208c2ecf20Sopenharmony_ci struct symbol *func; 218c2ecf20Sopenharmony_ci char *name, *str; 228c2ecf20Sopenharmony_ci unsigned long name_off; 238c2ecf20Sopenharmony_ci 248c2ecf20Sopenharmony_ci func = find_func_containing(sec, offset); 258c2ecf20Sopenharmony_ci if (func) { 268c2ecf20Sopenharmony_ci name = func->name; 278c2ecf20Sopenharmony_ci name_off = offset - func->offset; 288c2ecf20Sopenharmony_ci } else { 298c2ecf20Sopenharmony_ci name = sec->name; 308c2ecf20Sopenharmony_ci name_off = offset; 318c2ecf20Sopenharmony_ci } 328c2ecf20Sopenharmony_ci 338c2ecf20Sopenharmony_ci str = malloc(strlen(name) + 20); 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_ci if (func) 368c2ecf20Sopenharmony_ci sprintf(str, "%s()+0x%lx", name, name_off); 378c2ecf20Sopenharmony_ci else 388c2ecf20Sopenharmony_ci sprintf(str, "%s+0x%lx", name, name_off); 398c2ecf20Sopenharmony_ci 408c2ecf20Sopenharmony_ci return str; 418c2ecf20Sopenharmony_ci} 428c2ecf20Sopenharmony_ci 438c2ecf20Sopenharmony_ci#define WARN(format, ...) \ 448c2ecf20Sopenharmony_ci fprintf(stderr, \ 458c2ecf20Sopenharmony_ci "%s: warning: objtool: " format "\n", \ 468c2ecf20Sopenharmony_ci objname, ##__VA_ARGS__) 478c2ecf20Sopenharmony_ci 488c2ecf20Sopenharmony_ci#define WARN_FUNC(format, sec, offset, ...) \ 498c2ecf20Sopenharmony_ci({ \ 508c2ecf20Sopenharmony_ci char *_str = offstr(sec, offset); \ 518c2ecf20Sopenharmony_ci WARN("%s: " format, _str, ##__VA_ARGS__); \ 528c2ecf20Sopenharmony_ci free(_str); \ 538c2ecf20Sopenharmony_ci}) 548c2ecf20Sopenharmony_ci 558c2ecf20Sopenharmony_ci#define BT_FUNC(format, insn, ...) \ 568c2ecf20Sopenharmony_ci({ \ 578c2ecf20Sopenharmony_ci struct instruction *_insn = (insn); \ 588c2ecf20Sopenharmony_ci char *_str = offstr(_insn->sec, _insn->offset); \ 598c2ecf20Sopenharmony_ci WARN(" %s: " format, _str, ##__VA_ARGS__); \ 608c2ecf20Sopenharmony_ci free(_str); \ 618c2ecf20Sopenharmony_ci}) 628c2ecf20Sopenharmony_ci 638c2ecf20Sopenharmony_ci#define WARN_ELF(format, ...) \ 648c2ecf20Sopenharmony_ci WARN(format ": %s", ##__VA_ARGS__, elf_errmsg(-1)) 658c2ecf20Sopenharmony_ci 668c2ecf20Sopenharmony_ci#endif /* _WARN_H */ 67