08feafe8d1
Objtool's function fallthrough detection only works on C objects.
The distinction between C and assembly objects no longer makes sense
with objtool running on vmlinux.o.
Now that copy_user_64.S has been fixed up, and an objtool sibling call
detection bug has been fixed, the asm code is in "compliance" and this
hack is no longer needed. Remove it.
Fixes: ed53a0d971 ("x86/alternative: Use .ibt_endbr_seal to seal indirect calls")
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/b434cff98eca3a60dcc64c620d7d5d405a0f441c.1649718562.git.jpoimboe@redhat.com
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Copyright (C) 2020 Matt Helsley <mhelsley@vmware.com>
|
|
*/
|
|
|
|
#ifndef _OBJTOOL_H
|
|
#define _OBJTOOL_H
|
|
|
|
#include <stdbool.h>
|
|
#include <linux/list.h>
|
|
#include <linux/hashtable.h>
|
|
|
|
#include <objtool/elf.h>
|
|
|
|
#define __weak __attribute__((weak))
|
|
|
|
struct pv_state {
|
|
bool clean;
|
|
struct list_head targets;
|
|
};
|
|
|
|
struct objtool_file {
|
|
struct elf *elf;
|
|
struct list_head insn_list;
|
|
DECLARE_HASHTABLE(insn_hash, 20);
|
|
struct list_head retpoline_call_list;
|
|
struct list_head static_call_list;
|
|
struct list_head mcount_loc_list;
|
|
struct list_head endbr_list;
|
|
bool ignore_unreachables, hints, rodata;
|
|
|
|
unsigned int nr_endbr;
|
|
unsigned int nr_endbr_int;
|
|
|
|
unsigned long jl_short, jl_long;
|
|
unsigned long jl_nop_short, jl_nop_long;
|
|
|
|
struct pv_state *pv_ops;
|
|
};
|
|
|
|
struct objtool_file *objtool_open_read(const char *_objname);
|
|
|
|
void objtool_pv_add(struct objtool_file *file, int idx, struct symbol *func);
|
|
|
|
int check(struct objtool_file *file);
|
|
int orc_dump(const char *objname);
|
|
int orc_create(struct objtool_file *file);
|
|
|
|
#endif /* _OBJTOOL_H */
|