From e8ac6ea8a42d6506345056c6de3e81c97d3f20af Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 24 Sep 2014 16:08:33 +1000 Subject: [PATCH] kprobes: update jprobe_example.c for do_fork() change In commit e80d666 "flagday: kill pt_regs argument of do_fork()", the arguments to do_fork() changed. The example code in jprobe_example.c was not updated to match, so the arguments inside the jprobe handler do not match reality. Fix it by updating the arguments to match do_fork(). While we're at it use pr_info() for brevity, and print stack_start as well for interest. Signed-off-by: Michael Ellerman Acked-by: Masami Hiramatsu Signed-off-by: Jiri Kosina --- samples/kprobes/jprobe_example.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/samples/kprobes/jprobe_example.c b/samples/kprobes/jprobe_example.c index b7541355b92b..9119ac6a8270 100644 --- a/samples/kprobes/jprobe_example.c +++ b/samples/kprobes/jprobe_example.c @@ -24,12 +24,11 @@ /* Proxy routine having the same arguments as actual do_fork() routine */ static long jdo_fork(unsigned long clone_flags, unsigned long stack_start, - struct pt_regs *regs, unsigned long stack_size, - int __user *parent_tidptr, int __user *child_tidptr) + unsigned long stack_size, int __user *parent_tidptr, + int __user *child_tidptr) { - printk(KERN_INFO "jprobe: clone_flags = 0x%lx, stack_size = 0x%lx," - " regs = 0x%p\n", - clone_flags, stack_size, regs); + pr_info("jprobe: clone_flags = 0x%lx, stack_start = 0x%lx " + "stack_size = 0x%lx\n", clone_flags, stack_start, stack_size); /* Always end with a call to jprobe_return(). */ jprobe_return(); -- 2.20.1