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e7c0219b32
Objtool keeps per instruction CFI state in struct insn_state and will save/restore this where required. However, insn_state has grown some !CFI state, and this must not be saved/restored (that would loose/destroy state). Fix this by moving the CFI specific parts of insn_state into struct cfi_state. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lkml.kernel.org/r/20200416115119.045821071@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
38 lines
675 B
C
38 lines
675 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2015-2017 Josh Poimboeuf <jpoimboe@redhat.com>
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*/
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#ifndef _OBJTOOL_CFI_H
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#define _OBJTOOL_CFI_H
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#include "cfi_regs.h"
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#define CFI_UNDEFINED -1
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#define CFI_CFA -2
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#define CFI_SP_INDIRECT -3
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#define CFI_BP_INDIRECT -4
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struct cfi_reg {
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int base;
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int offset;
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};
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struct cfi_init_state {
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struct cfi_reg regs[CFI_NUM_REGS];
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struct cfi_reg cfa;
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};
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struct cfi_state {
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struct cfi_reg regs[CFI_NUM_REGS];
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struct cfi_reg vals[CFI_NUM_REGS];
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struct cfi_reg cfa;
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int stack_size;
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int drap_reg, drap_offset;
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unsigned char type;
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bool bp_scratch;
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bool drap;
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bool end;
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};
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#endif /* _OBJTOOL_CFI_H */
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