2 * User-space Probes (UProbes) for s390
4 * Copyright IBM Corp. 2014
5 * Author(s): Jan Willeke,
11 #include <linux/notifier.h>
13 typedef u16 uprobe_opcode_t
;
15 #define UPROBE_XOL_SLOT_BYTES 256 /* cache aligned */
17 #define UPROBE_SWBP_INSN 0x0002
18 #define UPROBE_SWBP_INSN_SIZE 2
22 uprobe_opcode_t insn
[3];
23 uprobe_opcode_t ixol
[3];
25 unsigned int saved_per
: 1;
26 unsigned int saved_int_code
;
29 struct arch_uprobe_task
{
32 int arch_uprobe_analyze_insn(struct arch_uprobe
*aup
, struct mm_struct
*mm
,
34 int arch_uprobe_pre_xol(struct arch_uprobe
*aup
, struct pt_regs
*regs
);
35 int arch_uprobe_post_xol(struct arch_uprobe
*aup
, struct pt_regs
*regs
);
36 bool arch_uprobe_xol_was_trapped(struct task_struct
*tsk
);
37 int arch_uprobe_exception_notify(struct notifier_block
*self
, unsigned long val
,
39 void arch_uprobe_abort_xol(struct arch_uprobe
*ap
, struct pt_regs
*regs
);
40 unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline
,
41 struct pt_regs
*regs
);
42 #endif /* _ASM_UPROBES_H */