[PATCH] samples/kprobes: Add riscv support

[Masami Hiramatsu]

On Tue, 30 Mar 2021 02:04:16 +0800
Jisheng Zhang <jszhang3 at mail.ustc.edu.cn> wrote:

> From: Jisheng Zhang <jszhang at kernel.org>
> 
> Add riscv specific info dump in both handler_pre() and handler_post().
> 

Looks good to me.

Acked-by: Masami Hiramatsu <mhiramat at kernel.org>

Thanks!

> Signed-off-by: Jisheng Zhang <jszhang at kernel.org>
> ---
>  samples/kprobes/kprobe_example.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c
> index 331dcf151532..c495664c0a9b 100644
> --- a/samples/kprobes/kprobe_example.c
> +++ b/samples/kprobes/kprobe_example.c
> @@ -47,6 +47,10 @@ static int __kprobes handler_pre(struct kprobe *p, struct pt_regs *regs)
>  	pr_info("<%s> pre_handler: p->addr = 0x%p, pc = 0x%lx, cpsr = 0x%lx\n",
>  		p->symbol_name, p->addr, (long)regs->ARM_pc, (long)regs->ARM_cpsr);
>  #endif
> +#ifdef CONFIG_RISCV
> +	pr_info("<%s> pre_handler: p->addr = 0x%p, pc = 0x%lx, status = 0x%lx\n",
> +		p->symbol_name, p->addr, regs->epc, regs->status);
> +#endif
>  #ifdef CONFIG_S390
>  	pr_info("<%s> pre_handler: p->addr, 0x%p, ip = 0x%lx, flags = 0x%lx\n",
>  		p->symbol_name, p->addr, regs->psw.addr, regs->flags);
> @@ -80,6 +84,10 @@ static void __kprobes handler_post(struct kprobe *p, struct pt_regs *regs,
>  	pr_info("<%s> post_handler: p->addr = 0x%p, cpsr = 0x%lx\n",
>  		p->symbol_name, p->addr, (long)regs->ARM_cpsr);
>  #endif
> +#ifdef CONFIG_RISCV
> +	pr_info("<%s> post_handler: p->addr = 0x%p, status = 0x%lx\n",
> +		p->symbol_name, p->addr, regs->status);
> +#endif
>  #ifdef CONFIG_S390
>  	pr_info("<%s> pre_handler: p->addr, 0x%p, flags = 0x%lx\n",
>  		p->symbol_name, p->addr, regs->flags);
> -- 
> 2.31.0
> 
> 


-- 
Masami Hiramatsu <mhiramat at kernel.org>