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Diffstat (limited to 'tools/objtool/include/objtool/arch.h')
-rw-r--r-- | tools/objtool/include/objtool/arch.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/tools/objtool/include/objtool/arch.h b/tools/objtool/include/objtool/arch.h new file mode 100644 index 000000000..861c0c60a --- /dev/null +++ b/tools/objtool/include/objtool/arch.h @@ -0,0 +1,97 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com> + */ + +#ifndef _ARCH_H +#define _ARCH_H + +#include <stdbool.h> +#include <linux/list.h> +#include <objtool/objtool.h> +#include <objtool/cfi.h> + +enum insn_type { + INSN_JUMP_CONDITIONAL, + INSN_JUMP_UNCONDITIONAL, + INSN_JUMP_DYNAMIC, + INSN_JUMP_DYNAMIC_CONDITIONAL, + INSN_CALL, + INSN_CALL_DYNAMIC, + INSN_RETURN, + INSN_CONTEXT_SWITCH, + INSN_BUG, + INSN_NOP, + INSN_STAC, + INSN_CLAC, + INSN_STD, + INSN_CLD, + INSN_TRAP, + INSN_ENDBR, + INSN_OTHER, +}; + +enum op_dest_type { + OP_DEST_REG, + OP_DEST_REG_INDIRECT, + OP_DEST_MEM, + OP_DEST_PUSH, + OP_DEST_PUSHF, +}; + +struct op_dest { + enum op_dest_type type; + unsigned char reg; + int offset; +}; + +enum op_src_type { + OP_SRC_REG, + OP_SRC_REG_INDIRECT, + OP_SRC_CONST, + OP_SRC_POP, + OP_SRC_POPF, + OP_SRC_ADD, + OP_SRC_AND, +}; + +struct op_src { + enum op_src_type type; + unsigned char reg; + int offset; +}; + +struct stack_op { + struct op_dest dest; + struct op_src src; + struct list_head list; +}; + +struct instruction; + +void arch_initial_func_cfi_state(struct cfi_init_state *state); + +int arch_decode_instruction(struct objtool_file *file, const struct section *sec, + unsigned long offset, unsigned int maxlen, + unsigned int *len, enum insn_type *type, + unsigned long *immediate, + struct list_head *ops_list); + +bool arch_callee_saved_reg(unsigned char reg); + +unsigned long arch_jump_destination(struct instruction *insn); + +unsigned long arch_dest_reloc_offset(int addend); + +const char *arch_nop_insn(int len); +const char *arch_ret_insn(int len); + +int arch_decode_hint_reg(u8 sp_reg, int *base); + +bool arch_is_retpoline(struct symbol *sym); +bool arch_is_rethunk(struct symbol *sym); +bool arch_is_embedded_insn(struct symbol *sym); + +int arch_rewrite_retpolines(struct objtool_file *file); + +#endif /* _ARCH_H */ |