diff options
Diffstat (limited to 'tools/objtool/check.h')
| -rw-r--r-- | tools/objtool/check.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/tools/objtool/check.h b/tools/objtool/check.h new file mode 100644 index 000000000..e6e8a655b --- /dev/null +++ b/tools/objtool/check.h @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _CHECK_H +#define _CHECK_H + +#include <stdbool.h> +#include "elf.h" +#include "cfi.h" +#include "arch.h" +#include "orc.h" +#include <linux/hashtable.h> + +struct insn_state { + struct cfi_reg cfa; + struct cfi_reg regs[CFI_NUM_REGS]; + int stack_size; + unsigned char type; + bool bp_scratch; + bool drap, end; + int drap_reg, drap_offset; + struct cfi_reg vals[CFI_NUM_REGS]; +}; + +struct instruction { + struct list_head list; + struct hlist_node hash; + struct section *sec; + unsigned long offset; + unsigned int len; + unsigned char type; + unsigned long immediate; + bool alt_group, visited, dead_end, ignore, hint, save, restore, ignore_alts; + bool retpoline_safe; + struct symbol *call_dest; + struct instruction *jump_dest; + struct instruction *first_jump_src; + struct list_head alts; + struct symbol *func; + struct stack_op stack_op; + struct insn_state state; + struct orc_entry orc; +}; + +struct objtool_file { + struct elf *elf; + struct list_head insn_list; + DECLARE_HASHTABLE(insn_hash, 16); + struct section *whitelist; + bool ignore_unreachables, c_file, hints, rodata; +}; + +int check(const char *objname, bool orc); + +struct instruction *find_insn(struct objtool_file *file, + struct section *sec, unsigned long offset); + +#define for_each_insn(file, insn) \ + list_for_each_entry(insn, &file->insn_list, list) + +#define sec_for_each_insn(file, sec, insn) \ + for (insn = find_insn(file, sec, 0); \ + insn && &insn->list != &file->insn_list && \ + insn->sec == sec; \ + insn = list_next_entry(insn, list)) + + +#endif /* _CHECK_H */ |