1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
10 #include <objtool/cfi.h>
11 #include <objtool/arch.h>
15 unsigned int uaccess_stack;
24 * Pointer from a replacement group to the original group. NULL if it
25 * *is* the original group.
27 struct alt_group *orig_group;
29 /* First and last instructions in the group */
30 struct instruction *first_insn, *last_insn;
33 * Byte-offset-addressed len-sized array of pointers to CFI structs.
34 * This is shared with the other alt_groups in the same alternative.
36 struct cfi_state **cfi;
40 struct list_head list;
41 struct hlist_node hash;
42 struct list_head call_node;
47 unsigned long immediate;
63 struct alt_group *alt_group;
64 struct symbol *call_dest;
65 struct instruction *jump_dest;
66 struct instruction *first_jump_src;
67 struct reloc *jump_table;
69 struct list_head alts;
71 struct list_head stack_ops;
72 struct cfi_state *cfi;
75 #define VISITED_BRANCH 0x01
76 #define VISITED_BRANCH_UACCESS 0x02
77 #define VISITED_BRANCH_MASK 0x03
78 #define VISITED_ENTRY 0x04
80 static inline bool is_static_jump(struct instruction *insn)
82 return insn->type == INSN_JUMP_CONDITIONAL ||
83 insn->type == INSN_JUMP_UNCONDITIONAL;
86 static inline bool is_dynamic_jump(struct instruction *insn)
88 return insn->type == INSN_JUMP_DYNAMIC ||
89 insn->type == INSN_JUMP_DYNAMIC_CONDITIONAL;
92 static inline bool is_jump(struct instruction *insn)
94 return is_static_jump(insn) || is_dynamic_jump(insn);
97 struct instruction *find_insn(struct objtool_file *file,
98 struct section *sec, unsigned long offset);
100 #define for_each_insn(file, insn) \
101 list_for_each_entry(insn, &file->insn_list, list)
103 #define sec_for_each_insn(file, sec, insn) \
104 for (insn = find_insn(file, sec, 0); \
105 insn && &insn->list != &file->insn_list && \
107 insn = list_next_entry(insn, list))
109 #endif /* _CHECK_H */