add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/tools/objtool/arch.h
..
..
@@ -1,18 +1,6 @@
1
+/* SPDX-License-Identifier: GPL-2.0-or-later */
1
2
 /*
2
3
  * Copyright (C) 2015 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
4
  */
17
5
 
18
6
 #ifndef _ARCH_H
..
..
@@ -20,27 +8,34 @@
20
8
 
21
9
 #include <stdbool.h>
22
10
 #include <linux/list.h>
23
-#include "elf.h"
11
+#include "objtool.h"
24
12
 #include "cfi.h"
25
13
 
26
-#define INSN_JUMP_CONDITIONAL	1
27
-#define INSN_JUMP_UNCONDITIONAL	2
28
-#define INSN_JUMP_DYNAMIC	3
29
-#define INSN_CALL		4
30
-#define INSN_CALL_DYNAMIC	5
31
-#define INSN_RETURN		6
32
-#define INSN_CONTEXT_SWITCH	7
33
-#define INSN_STACK		8
34
-#define INSN_BUG		9
35
-#define INSN_NOP		10
36
-#define INSN_OTHER		11
37
-#define INSN_LAST		INSN_OTHER
14
+enum insn_type {
15
+	INSN_JUMP_CONDITIONAL,
16
+	INSN_JUMP_UNCONDITIONAL,
17
+	INSN_JUMP_DYNAMIC,
18
+	INSN_JUMP_DYNAMIC_CONDITIONAL,
19
+	INSN_CALL,
20
+	INSN_CALL_DYNAMIC,
21
+	INSN_RETURN,
22
+	INSN_CONTEXT_SWITCH,
23
+	INSN_BUG,
24
+	INSN_NOP,
25
+	INSN_STAC,
26
+	INSN_CLAC,
27
+	INSN_STD,
28
+	INSN_CLD,
29
+	INSN_TRAP,
30
+	INSN_OTHER,
31
+};
38
32
 
39
33
 enum op_dest_type {
40
34
 	OP_DEST_REG,
41
35
 	OP_DEST_REG_INDIRECT,
42
36
 	OP_DEST_MEM,
43
37
 	OP_DEST_PUSH,
38
+	OP_DEST_PUSHF,
44
39
 	OP_DEST_LEAVE,
45
40
 };
46
41
 
..
..
@@ -55,6 +50,7 @@
55
50
 	OP_SRC_REG_INDIRECT,
56
51
 	OP_SRC_CONST,
57
52
 	OP_SRC_POP,
53
+	OP_SRC_POPF,
58
54
 	OP_SRC_ADD,
59
55
 	OP_SRC_AND,
60
56
 };
..
..
@@ -68,15 +64,34 @@
68
64
 struct stack_op {
69
65
 	struct op_dest dest;
70
66
 	struct op_src src;
67
+	struct list_head list;
71
68
 };
72
69
 
73
-void arch_initial_func_cfi_state(struct cfi_state *state);
70
+struct instruction;
74
71
 
75
-int arch_decode_instruction(struct elf *elf, struct section *sec,
72
+void arch_initial_func_cfi_state(struct cfi_init_state *state);
73
+
74
+int arch_decode_instruction(const struct elf *elf, const struct section *sec,
76
75
 			    unsigned long offset, unsigned int maxlen,
77
-			    unsigned int *len, unsigned char *type,
78
-			    unsigned long *immediate, struct stack_op *op);
76
+			    unsigned int *len, enum insn_type *type,
77
+			    unsigned long *immediate,
78
+			    struct list_head *ops_list);
79
79
 
80
80
 bool arch_callee_saved_reg(unsigned char reg);
81
81
 
82
+unsigned long arch_jump_destination(struct instruction *insn);
83
+
84
+unsigned long arch_dest_reloc_offset(int addend);
85
+
86
+const char *arch_nop_insn(int len);
87
+const char *arch_ret_insn(int len);
88
+
89
+int arch_decode_hint_reg(u8 sp_reg, int *base);
90
+
91
+bool arch_is_retpoline(struct symbol *sym);
92
+bool arch_is_rethunk(struct symbol *sym);
93
+bool arch_is_embedded_insn(struct symbol *sym);
94
+
95
+int arch_rewrite_retpolines(struct objtool_file *file);
96
+
82
97
 #endif /* _ARCH_H */