mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-18 22:06:49 +07:00
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
#ifndef __ASM_UPROBES_H
|
|
#define __ASM_UPROBES_H
|
|
|
|
#include <linux/notifier.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <asm/break.h>
|
|
#include <asm/inst.h>
|
|
|
|
/*
|
|
* We want this to be defined as union mips_instruction but that makes the
|
|
* generic code blow up.
|
|
*/
|
|
typedef u32 uprobe_opcode_t;
|
|
|
|
/*
|
|
* Classic MIPS (note this implementation doesn't consider microMIPS yet)
|
|
* instructions are always 4 bytes but in order to deal with branches and
|
|
* their delay slots, we treat instructions as having 8 bytes maximum.
|
|
*/
|
|
#define MAX_UINSN_BYTES 8
|
|
#define UPROBE_XOL_SLOT_BYTES 128 /* Max. cache line size */
|
|
|
|
#define UPROBE_BRK_UPROBE 0x000d000d /* break 13 */
|
|
#define UPROBE_BRK_UPROBE_XOL 0x000e000d /* break 14 */
|
|
|
|
#define UPROBE_SWBP_INSN UPROBE_BRK_UPROBE
|
|
#define UPROBE_SWBP_INSN_SIZE 4
|
|
|
|
struct arch_uprobe {
|
|
unsigned long resume_epc;
|
|
u32 insn[2];
|
|
u32 ixol[2];
|
|
union mips_instruction orig_inst[MAX_UINSN_BYTES / 4];
|
|
};
|
|
|
|
struct arch_uprobe_task {
|
|
unsigned long saved_trap_nr;
|
|
};
|
|
|
|
extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup,
|
|
struct mm_struct *mm, unsigned long addr);
|
|
extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs);
|
|
extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs);
|
|
extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
|
|
extern int arch_uprobe_exception_notify(struct notifier_block *self,
|
|
unsigned long val, void *data);
|
|
extern void arch_uprobe_abort_xol(struct arch_uprobe *aup,
|
|
struct pt_regs *regs);
|
|
extern unsigned long arch_uretprobe_hijack_return_addr(
|
|
unsigned long trampoline_vaddr, struct pt_regs *regs);
|
|
|
|
#endif /* __ASM_UPROBES_H */
|