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Commit ea9b5013 authored by Huang Shijie's avatar Huang Shijie Committed by Linus Torvalds
Browse files

samples/kprobes: print out the symbol name for the hooks 

Print out the symbol name for the hooks, it makes the logs more
readable.

Link: http://lkml.kernel.org/r/1463535417-29637-2-git-send-email-shijie.huang@arm.com


Signed-off-by: default avatarHuang Shijie <shijie.huang@arm.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Steve Capper <steve.capper@arm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d04659ac

samples/kprobes/kprobe_example.c

+16 −16
Original line number Diff line number Diff line
@@ -27,24 +27,24 @@ static struct kprobe kp = { 
static int handler_pre(struct kprobe *p, struct pt_regs *regs)

{

#ifdef CONFIG_X86

	printk(KERN_INFO "pre_handler: p->addr = 0x%p, ip = %lx,"

	printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, ip = %lx,"

			" flags = 0x%lx\n",

		p->addr, regs->ip, regs->flags);

		p->symbol_name, p->addr, regs->ip, regs->flags);

#endif

#ifdef CONFIG_PPC

	printk(KERN_INFO "pre_handler: p->addr = 0x%p, nip = 0x%lx,"

	printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, nip = 0x%lx,"

			" msr = 0x%lx\n",

		p->addr, regs->nip, regs->msr);

		p->symbol_name, p->addr, regs->nip, regs->msr);

#endif

#ifdef CONFIG_MIPS

	printk(KERN_INFO "pre_handler: p->addr = 0x%p, epc = 0x%lx,"

	printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, epc = 0x%lx,"

			" status = 0x%lx\n",

		p->addr, regs->cp0_epc, regs->cp0_status);

		p->symbol_name, p->addr, regs->cp0_epc, regs->cp0_status);

#endif

#ifdef CONFIG_TILEGX

	printk(KERN_INFO "pre_handler: p->addr = 0x%p, pc = 0x%lx,"

	printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, pc = 0x%lx,"

			" ex1 = 0x%lx\n",

		p->addr, regs->pc, regs->ex1);

		p->symbol_name, p->addr, regs->pc, regs->ex1);

#endif



	/* A dump_stack() here will give a stack backtrace */
@@ -56,20 +56,20 @@ static void handler_post(struct kprobe *p, struct pt_regs *regs, 
				unsigned long flags)

{

#ifdef CONFIG_X86

	printk(KERN_INFO "post_handler: p->addr = 0x%p, flags = 0x%lx\n",

		p->addr, regs->flags);

	printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, flags = 0x%lx\n",

		p->symbol_name, p->addr, regs->flags);

#endif

#ifdef CONFIG_PPC

	printk(KERN_INFO "post_handler: p->addr = 0x%p, msr = 0x%lx\n",

		p->addr, regs->msr);

	printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, msr = 0x%lx\n",

		p->symbol_name, p->addr, regs->msr);

#endif

#ifdef CONFIG_MIPS

	printk(KERN_INFO "post_handler: p->addr = 0x%p, status = 0x%lx\n",

		p->addr, regs->cp0_status);

	printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, status = 0x%lx\n",

		p->symbol_name, p->addr, regs->cp0_status);

#endif

#ifdef CONFIG_TILEGX

	printk(KERN_INFO "post_handler: p->addr = 0x%p, ex1 = 0x%lx\n",

		p->addr, regs->ex1);

	printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, ex1 = 0x%lx\n",

		p->symbol_name, p->addr, regs->ex1);

#endif

}