1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com> 4 */ 5 6 #ifndef _ARCH_H 7 #define _ARCH_H 8 9 #include <stdbool.h> 10 #include <linux/list.h> 11 #include "elf.h" 12 #include "cfi.h" 13 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_STACK, 24 INSN_BUG, 25 INSN_NOP, 26 INSN_STAC, 27 INSN_CLAC, 28 INSN_STD, 29 INSN_CLD, 30 INSN_OTHER, 31 }; 32 33 enum op_dest_type { 34 OP_DEST_REG, 35 OP_DEST_REG_INDIRECT, 36 OP_DEST_MEM, 37 OP_DEST_PUSH, 38 OP_DEST_PUSHF, 39 OP_DEST_LEAVE, 40 }; 41 42 struct op_dest { 43 enum op_dest_type type; 44 unsigned char reg; 45 int offset; 46 }; 47 48 enum op_src_type { 49 OP_SRC_REG, 50 OP_SRC_REG_INDIRECT, 51 OP_SRC_CONST, 52 OP_SRC_POP, 53 OP_SRC_POPF, 54 OP_SRC_ADD, 55 OP_SRC_AND, 56 }; 57 58 struct op_src { 59 enum op_src_type type; 60 unsigned char reg; 61 int offset; 62 }; 63 64 struct stack_op { 65 struct op_dest dest; 66 struct op_src src; 67 }; 68 69 void arch_initial_func_cfi_state(struct cfi_state *state); 70 71 int arch_decode_instruction(struct elf *elf, struct section *sec, 72 unsigned long offset, unsigned int maxlen, 73 unsigned int *len, enum insn_type *type, 74 unsigned long *immediate, struct stack_op *op); 75 76 bool arch_callee_saved_reg(unsigned char reg); 77 78 #endif /* _ARCH_H */ 79