| /* SPDX-License-Identifier: GPL-2.0-only */ |
| #ifndef __ASM_LOONGARCH_UPROBES_H |
| #define __ASM_LOONGARCH_UPROBES_H |
| |
| #include <asm/inst.h> |
| |
| typedef u32 uprobe_opcode_t; |
| |
| #define MAX_UINSN_BYTES 8 |
| #define UPROBE_XOL_SLOT_BYTES MAX_UINSN_BYTES |
| |
| #define UPROBE_SWBP_INSN __emit_break(BRK_UPROBE_BP) |
| #define UPROBE_SWBP_INSN_SIZE LOONGARCH_INSN_SIZE |
| |
| #define UPROBE_XOLBP_INSN __emit_break(BRK_UPROBE_XOLBP) |
| |
| struct arch_uprobe { |
| unsigned long resume_era; |
| u32 insn[2]; |
| u32 ixol[2]; |
| bool simulate; |
| }; |
| |
| struct arch_uprobe_task { |
| unsigned long saved_trap_nr; |
| }; |
| |
| #ifdef CONFIG_UPROBES |
| bool uprobe_breakpoint_handler(struct pt_regs *regs); |
| bool uprobe_singlestep_handler(struct pt_regs *regs); |
| #else /* !CONFIG_UPROBES */ |
| static inline bool uprobe_breakpoint_handler(struct pt_regs *regs) { return false; } |
| static inline bool uprobe_singlestep_handler(struct pt_regs *regs) { return false; } |
| #endif /* CONFIG_UPROBES */ |
| |
| #endif /* __ASM_LOONGARCH_UPROBES_H */ |
