From mboxrd@z Thu Jan 1 00:00:00 1970 From: long.wanglong@huawei.com (long.wanglong) Date: Thu, 5 Feb 2015 09:09:30 +0800 Subject: [PATCH] SAMPLES: kprobe_example: Make it print something on ARM. In-Reply-To: <54D18F41.4070207@hitachi.com> References: <1423018585-4005-1-git-send-email-long.wanglong@huawei.com> <54D18F41.4070207@hitachi.com> Message-ID: <54D2C2CA.7070705@huawei.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 2015/2/4 11:17, Masami Hiramatsu wrote: > (2015/02/04 11:56), Wang Long wrote: >> This KProbes example is a little useless if it doesn't print anything. >> For ARM print similar messages to those produced on x86 and PPC. > > BTW, I guess similar update required for s390, doesn't it? > yes, because i am not familiar with s390, someone else may update this example for s390. Best Regards Wang Long >> >> Signed-off-by: Wang Long > > Acked-by: Masami Hiramatsu > > Thank you! > >> --- >> samples/kprobes/kprobe_example.c | 9 +++++++++ >> 1 file changed, 9 insertions(+) >> >> diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c >> index 366db1a..eba9f1a 100644 >> --- a/samples/kprobes/kprobe_example.c >> +++ b/samples/kprobes/kprobe_example.c >> @@ -42,6 +42,11 @@ static int handler_pre(struct kprobe *p, struct pt_regs *regs) >> " ex1 = 0x%lx\n", >> p->addr, regs->pc, regs->ex1); >> #endif >> +#ifdef CONFIG_ARM >> + printk(KERN_INFO "pre_handler: p->addr = 0x%p, ARM_pc = 0x%lx," >> + " ARM_cpsr = 0x%lx\n", >> + p->addr, regs->ARM_pc, regs->ARM_cpsr); >> +#endif >> >> /* A dump_stack() here will give a stack backtrace */ >> return 0; >> @@ -67,6 +72,10 @@ static void handler_post(struct kprobe *p, struct pt_regs *regs, >> printk(KERN_INFO "post_handler: p->addr = 0x%p, ex1 = 0x%lx\n", >> p->addr, regs->ex1); >> #endif >> +#ifdef CONFIG_ARM >> + printk(KERN_INFO "post_handler: p->addr = 0x%p, ARM_cpsr = 0x%lx\n", >> + p->addr, regs->ARM_cpsr); >> +#endif >> } >> >> /* >> > >