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