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8f6bb793b2
This patch adds support for uprobes on csky architecture. Just like kprobe, it support single-step and simulate instructions. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
33 lines
669 B
C
33 lines
669 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __ASM_CSKY_UPROBES_H
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#define __ASM_CSKY_UPROBES_H
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#include <asm/probes.h>
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#define MAX_UINSN_BYTES 4
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#define UPROBE_SWBP_INSN USR_BKPT
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#define UPROBE_SWBP_INSN_SIZE 2
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#define UPROBE_XOL_SLOT_BYTES MAX_UINSN_BYTES
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typedef u32 uprobe_opcode_t;
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struct arch_uprobe_task {
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unsigned long saved_trap_no;
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};
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struct arch_uprobe {
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union {
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u8 insn[MAX_UINSN_BYTES];
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u8 ixol[MAX_UINSN_BYTES];
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};
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struct arch_probe_insn api;
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unsigned long insn_size;
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bool simulate;
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};
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int uprobe_breakpoint_handler(struct pt_regs *regs);
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int uprobe_single_step_handler(struct pt_regs *regs);
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#endif /* __ASM_CSKY_UPROBES_H */
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