08f87a93c8
Intel IBT requires that every indirect JMP/CALL targets an ENDBR instructions, failing this #CP happens and we die. Similarly, all exception entries should be ENDBR. Find all code relocations and ensure they're either an ENDBR instruction or ANNOTATE_NOENDBR. For the exceptions look for UNWIND_HINT_IRET_REGS at sym+0 not being ENDBR. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154319.705110141@infradead.org
21 lines
594 B
C
21 lines
594 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
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*/
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#ifndef _BUILTIN_H
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#define _BUILTIN_H
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#include <subcmd/parse-options.h>
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extern const struct option check_options[];
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extern bool no_fp, no_unreachable, retpoline, module, backtrace, uaccess, stats,
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lto, vmlinux, mcount, noinstr, backup, sls, dryrun,
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ibt;
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extern int cmd_parse_options(int argc, const char **argv, const char * const usage[]);
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extern int cmd_check(int argc, const char **argv);
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extern int cmd_orc(int argc, const char **argv);
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#endif /* _BUILTIN_H */
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