/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2015-2017 Josh Poimboeuf <jpoimboe@redhat.com>
 */

#ifndef _OBJTOOL_CFI_H
#define _OBJTOOL_CFI_H

#include <arch/cfi_regs.h>
#include <linux/list.h>

#define CFI_UNDEFINED           -1
#define CFI_CFA                 -2
#define CFI_SP_INDIRECT         -3
#define CFI_BP_INDIRECT         -4

struct cfi_reg {
        int base;
        int offset;
};

struct cfi_init_state {
        struct cfi_reg regs[CFI_NUM_REGS];
        struct cfi_reg cfa;
};

struct cfi_state {
        struct hlist_node hash; /* must be first, cficmp() */
        struct cfi_reg regs[CFI_NUM_REGS];
        struct cfi_reg vals[CFI_NUM_REGS];
        struct cfi_reg cfa;
        int stack_size;
        int drap_reg, drap_offset;
        unsigned char type;
        bool bp_scratch;
        bool drap;
        bool signal;
        bool end;
        bool force_undefined;
};

#endif /* _OBJTOOL_CFI_H */