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164c9201e1
In preparation for klp-build, enable "classic" objtool to work on
livepatch modules:
- Avoid duplicate symbol/section warnings for prefix symbols and the
.static_call_sites and __mcount_loc sections which may have already
been extracted by klp diff.
- Add __klp_funcs to the IBT function pointer section whitelist.
- Prevent KLP symbols from getting incorrectly classified as cold
subfunctions.
Acked-by: Petr Mladek <pmladek@suse.com>
Tested-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2020 Matt Helsley <mhelsley@vmware.com>
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*/
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#ifndef _OBJTOOL_H
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#define _OBJTOOL_H
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#include <stdbool.h>
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#include <linux/list.h>
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#include <linux/hashtable.h>
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#include <objtool/elf.h>
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#define __weak __attribute__((weak))
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struct pv_state {
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bool clean;
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struct list_head targets;
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};
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struct objtool_file {
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struct elf *elf;
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DECLARE_HASHTABLE(insn_hash, 20);
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struct list_head retpoline_call_list;
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struct list_head return_thunk_list;
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struct list_head static_call_list;
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struct list_head mcount_loc_list;
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struct list_head endbr_list;
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struct list_head call_list;
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bool ignore_unreachables, hints, rodata, klp;
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unsigned int nr_endbr;
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unsigned int nr_endbr_int;
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unsigned long jl_short, jl_long;
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unsigned long jl_nop_short, jl_nop_long;
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struct pv_state *pv_ops;
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};
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char *top_level_dir(const char *file);
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struct objtool_file *objtool_open_read(const char *_objname);
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int objtool_pv_add(struct objtool_file *file, int idx, struct symbol *func);
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int check(struct objtool_file *file);
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int orc_dump(const char *objname);
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int orc_create(struct objtool_file *file);
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#endif /* _OBJTOOL_H */
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