diff options
Diffstat (limited to 'arch/sparc/include/asm/kprobes.h')
| -rw-r--r-- | arch/sparc/include/asm/kprobes.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/kprobes.h b/arch/sparc/include/asm/kprobes.h new file mode 100644 index 0000000000..06c2bc767e --- /dev/null +++ b/arch/sparc/include/asm/kprobes.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _SPARC64_KPROBES_H +#define _SPARC64_KPROBES_H + +#include <asm-generic/kprobes.h> + +#define BREAKPOINT_INSTRUCTION 0x91d02070 /* ta 0x70 */ +#define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */ + +#ifdef CONFIG_KPROBES +#include <linux/types.h> +#include <linux/percpu.h> + +typedef u32 kprobe_opcode_t; + +#define MAX_INSN_SIZE 2 + +#define kretprobe_blacklist_size 0 + +#define arch_remove_kprobe(p) do {} while (0) + +#define flush_insn_slot(p) \ +do { flushi(&(p)->ainsn.insn[0]); \ + flushi(&(p)->ainsn.insn[1]); \ +} while (0) + +void __kretprobe_trampoline(void); + +/* Architecture specific copy of original instruction*/ +struct arch_specific_insn { + /* copy of the original instruction */ + kprobe_opcode_t insn[MAX_INSN_SIZE]; +}; + +struct prev_kprobe { + struct kprobe *kp; + unsigned long status; + unsigned long orig_tnpc; + unsigned long orig_tstate_pil; +}; + +/* per-cpu kprobe control block */ +struct kprobe_ctlblk { + unsigned long kprobe_status; + unsigned long kprobe_orig_tnpc; + unsigned long kprobe_orig_tstate_pil; + struct prev_kprobe prev_kprobe; +}; + +int kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data); +int kprobe_fault_handler(struct pt_regs *regs, int trapnr); +asmlinkage void __kprobes kprobe_trap(unsigned long trap_level, + struct pt_regs *regs); + +#endif /* CONFIG_KPROBES */ +#endif /* _SPARC64_KPROBES_H */ |