Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
75 lines
1.3 KiB
C
75 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
#ifndef _ASM_UPROBES_H
|
|
#define _ASM_UPROBES_H
|
|
/*
|
|
* User-space Probes (UProbes) for x86
|
|
*
|
|
* Copyright (C) IBM Corporation, 2008-2011
|
|
* Authors:
|
|
* Srikar Dronamraju
|
|
* Jim Keniston
|
|
*/
|
|
|
|
#include <linux/notifier.h>
|
|
|
|
typedef u8 uprobe_opcode_t;
|
|
|
|
#define MAX_UINSN_BYTES 16
|
|
#define UPROBE_XOL_SLOT_BYTES 128 /* to keep it cache aligned */
|
|
|
|
#define UPROBE_SWBP_INSN 0xcc
|
|
#define UPROBE_SWBP_INSN_SIZE 1
|
|
|
|
enum {
|
|
ARCH_UPROBE_FLAG_CAN_OPTIMIZE = 0,
|
|
ARCH_UPROBE_FLAG_OPTIMIZE_FAIL = 1,
|
|
};
|
|
|
|
struct uprobe_xol_ops;
|
|
|
|
struct arch_uprobe {
|
|
union {
|
|
u8 insn[MAX_UINSN_BYTES];
|
|
u8 ixol[MAX_UINSN_BYTES];
|
|
};
|
|
|
|
const struct uprobe_xol_ops *ops;
|
|
|
|
union {
|
|
struct {
|
|
s32 offs;
|
|
u8 ilen;
|
|
u8 opc1;
|
|
} branch;
|
|
struct {
|
|
u8 fixups;
|
|
u8 ilen;
|
|
} defparam;
|
|
struct {
|
|
u8 reg_offset; /* to the start of pt_regs */
|
|
u8 ilen;
|
|
} push;
|
|
};
|
|
|
|
unsigned long flags;
|
|
};
|
|
|
|
struct arch_uprobe_task {
|
|
#ifdef CONFIG_X86_64
|
|
unsigned long saved_scratch_register;
|
|
#endif
|
|
unsigned int saved_trap_nr;
|
|
unsigned int saved_tf;
|
|
};
|
|
|
|
#ifdef CONFIG_UPROBES
|
|
extern bool is_uprobe_at_func_entry(struct pt_regs *regs);
|
|
#else
|
|
static bool is_uprobe_at_func_entry(struct pt_regs *regs)
|
|
{
|
|
return false;
|
|
}
|
|
#endif /* CONFIG_UPROBES */
|
|
|
|
#endif /* _ASM_UPROBES_H */
|