hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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 <mpe@ellerman.id.au>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Michael Ellerman 2014-09-24 16:08:33 +10:00 committed by Jiri Kosina
parent 2d69049ab7
commit e8ac6ea8a4
1 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
samples/kprobes/jprobe_example.c
View File

@ -24,12 +24,11 @@
/* Proxy routine having the same arguments as actual do_fork() routine */ /* Proxy routine having the same arguments as actual do_fork() routine */
static long jdo_fork(unsigned long clone_flags, unsigned long stack_start, static long jdo_fork(unsigned long clone_flags, unsigned long stack_start,
struct pt_regs *regs, unsigned long stack_size, unsigned long stack_size, int __user *parent_tidptr,
int __user *parent_tidptr, int __user *child_tidptr) int __user *child_tidptr)
{ {
printk(KERN_INFO "jprobe: clone_flags = 0x%lx, stack_size = 0x%lx," pr_info("jprobe: clone_flags = 0x%lx, stack_start = 0x%lx "
" regs = 0x%p\n", "stack_size = 0x%lx\n", clone_flags, stack_start, stack_size);
clone_flags, stack_size, regs);
/* Always end with a call to jprobe_return(). */ /* Always end with a call to jprobe_return(). */
jprobe_return(); jprobe_return();