1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
11 #include <sys/types.h>
14 #include <objtool/builtin.h>
15 #include <objtool/elf.h>
17 extern const char *objname;
19 static inline char *offstr(struct section *sec, unsigned long offset)
21 bool is_text = (sec->sh.sh_flags & SHF_EXECINSTR);
22 struct symbol *sym = NULL;
27 sym = find_func_containing(sec, offset);
29 sym = find_symbol_containing(sec, offset);
32 str = malloc(strlen(sym->name) + strlen(sec->name) + 40);
33 len = sprintf(str, "%s+0x%lx", sym->name, offset - sym->offset);
35 sprintf(str+len, " (%s+0x%lx)", sec->name, offset);
37 str = malloc(strlen(sec->name) + 20);
38 sprintf(str, "%s+0x%lx", sec->name, offset);
44 #define WARN(format, ...) \
46 "%s: warning: objtool: " format "\n", \
47 objname, ##__VA_ARGS__)
49 #define WARN_FUNC(format, sec, offset, ...) \
51 char *_str = offstr(sec, offset); \
52 WARN("%s: " format, _str, ##__VA_ARGS__); \
56 #define BT_FUNC(format, insn, ...) \
58 struct instruction *_insn = (insn); \
59 char *_str = offstr(_insn->sec, _insn->offset); \
60 WARN(" %s: " format, _str, ##__VA_ARGS__); \
64 #define WARN_ELF(format, ...) \
65 WARN(format ": %s", ##__VA_ARGS__, elf_errmsg(-1))