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dcc914f4 JP |
1 | /* |
2 | * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version 2 | |
7 | * of the License, or (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | #ifndef _CHECK_H | |
19 | #define _CHECK_H | |
20 | ||
21 | #include <stdbool.h> | |
22 | #include "elf.h" | |
baa41469 | 23 | #include "cfi.h" |
dcc914f4 | 24 | #include "arch.h" |
627fce14 | 25 | #include "orc.h" |
dcc914f4 JP |
26 | #include <linux/hashtable.h> |
27 | ||
baa41469 JP |
28 | struct insn_state { |
29 | struct cfi_reg cfa; | |
30 | struct cfi_reg regs[CFI_NUM_REGS]; | |
31 | int stack_size; | |
627fce14 | 32 | unsigned char type; |
baa41469 | 33 | bool bp_scratch; |
d31a5802 | 34 | bool drap, end; |
bf4d1a83 | 35 | int drap_reg, drap_offset; |
dd88a0a0 | 36 | struct cfi_reg vals[CFI_NUM_REGS]; |
baa41469 JP |
37 | }; |
38 | ||
dcc914f4 JP |
39 | struct instruction { |
40 | struct list_head list; | |
41 | struct hlist_node hash; | |
42 | struct section *sec; | |
43 | unsigned long offset; | |
baa41469 | 44 | unsigned int len; |
dcc914f4 JP |
45 | unsigned char type; |
46 | unsigned long immediate; | |
258c7605 | 47 | bool alt_group, visited, dead_end, ignore, hint, save, restore, ignore_alts; |
b5bc2231 | 48 | bool retpoline_safe; |
dcc914f4 JP |
49 | struct symbol *call_dest; |
50 | struct instruction *jump_dest; | |
99ce7962 | 51 | struct instruction *first_jump_src; |
dcc914f4 JP |
52 | struct list_head alts; |
53 | struct symbol *func; | |
baa41469 JP |
54 | struct stack_op stack_op; |
55 | struct insn_state state; | |
627fce14 | 56 | struct orc_entry orc; |
dcc914f4 JP |
57 | }; |
58 | ||
59 | struct objtool_file { | |
60 | struct elf *elf; | |
61 | struct list_head insn_list; | |
62 | DECLARE_HASHTABLE(insn_hash, 16); | |
4a60aa05 AX |
63 | struct section *whitelist; |
64 | bool ignore_unreachables, c_file, hints, rodata; | |
dcc914f4 JP |
65 | }; |
66 | ||
43a4525f | 67 | int check(const char *objname, bool orc); |
627fce14 JP |
68 | |
69 | struct instruction *find_insn(struct objtool_file *file, | |
70 | struct section *sec, unsigned long offset); | |
dcc914f4 | 71 | |
baa41469 JP |
72 | #define for_each_insn(file, insn) \ |
73 | list_for_each_entry(insn, &file->insn_list, list) | |
74 | ||
627fce14 JP |
75 | #define sec_for_each_insn(file, sec, insn) \ |
76 | for (insn = find_insn(file, sec, 0); \ | |
77 | insn && &insn->list != &file->insn_list && \ | |
78 | insn->sec == sec; \ | |
79 | insn = list_next_entry(insn, list)) | |
80 | ||
81 | ||
dcc914f4 | 82 | #endif /* _CHECK_H */ |