arch/sparc/include/asm/kprobes.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _SPARC64_KPROBES_H
   3 #define _SPARC64_KPROBES_H
   4
   5 #include <asm-generic/kprobes.h>
   6
   7 #define BREAKPOINT_INSTRUCTION   0x91d02070 /* ta 0x70 */
   8 #define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */
   9
  10 #ifdef CONFIG_KPROBES
  11 #include <linux/types.h>
  12 #include <linux/percpu.h>
  13
  14 typedef u32 kprobe_opcode_t;
  15
  16 #define MAX_INSN_SIZE 2
  17
  18 #define kretprobe_blacklist_size 0
  19
  20 #define arch_remove_kprobe(p)   do {} while (0)
  21
  22 #define flush_insn_slot(p)              \
  23 do {    flushi(&(p)->ainsn.insn[0]);    \
  24         flushi(&(p)->ainsn.insn[1]);    \
  25 } while (0)
  26
  27 void kretprobe_trampoline(void);
  28
  29 /* Architecture specific copy of original instruction*/
  30 struct arch_specific_insn {
  31         /* copy of the original instruction */
  32         kprobe_opcode_t insn[MAX_INSN_SIZE];
  33 };
  34
  35 struct prev_kprobe {
  36         struct kprobe *kp;
  37         unsigned long status;
  38         unsigned long orig_tnpc;
  39         unsigned long orig_tstate_pil;
  40 };
  41
  42 /* per-cpu kprobe control block */
  43 struct kprobe_ctlblk {
  44         unsigned long kprobe_status;
  45         unsigned long kprobe_orig_tnpc;
  46         unsigned long kprobe_orig_tstate_pil;
  47         struct prev_kprobe prev_kprobe;
  48 };
  49
  50 int kprobe_exceptions_notify(struct notifier_block *self,
  51                              unsigned long val, void *data);
  52 int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
  53 asmlinkage void __kprobes kprobe_trap(unsigned long trap_level,
  54                                       struct pt_regs *regs);
  55
  56 #endif /* CONFIG_KPROBES */
  57 #endif /* _SPARC64_KPROBES_H */