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| author | Petr Mladek <pmladek@suse.com> | 2015-10-01 15:37:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-10-01 21:42:35 -0400 |
| commit | 54aea4542980a3ed580426a81c5af799df4d610d (patch) | |
| tree | 6f9ca54438333b0ee829ec57f56712359447d33b /samples/kprobes/kprobe_example.c | |
| parent | 09a59a9d57a9d6f49510c93304d6e105deb83b93 (diff) | |
| download | linux-54aea4542980a3ed580426a81c5af799df4d610d.tar.bz2 | |
kprobes: use _do_fork() in samples to make them work again
Commit 3033f14ab78c ("clone: support passing tls argument via C rather
than pt_regs magic") introduced _do_fork() that allowed to pass @tls
parameter.
The old do_fork() is defined only for architectures that are not ready
to use this way and do not define HAVE_COPY_THREAD_TLS.
Let's use _do_fork() in the kprobe examples to make them work again on
all architectures.
Signed-off-by: Petr Mladek <pmladek@suse.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thiago Macieira <thiago.macieira@intel.com>
Cc: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'samples/kprobes/kprobe_example.c')
| -rw-r--r-- | samples/kprobes/kprobe_example.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c index 366db1a9fb65..727eb21c9c56 100644 --- a/samples/kprobes/kprobe_example.c +++ b/samples/kprobes/kprobe_example.c @@ -1,13 +1,13 @@ /* * NOTE: This example is works on x86 and powerpc. * Here's a sample kernel module showing the use of kprobes to dump a - * stack trace and selected registers when do_fork() is called. + * stack trace and selected registers when _do_fork() is called. * * For more information on theory of operation of kprobes, see * Documentation/kprobes.txt * * You will see the trace data in /var/log/messages and on the console - * whenever do_fork() is invoked to create a new process. + * whenever _do_fork() is invoked to create a new process. */ #include <linux/kernel.h> @@ -16,7 +16,7 @@ /* For each probe you need to allocate a kprobe structure */ static struct kprobe kp = { - .symbol_name = "do_fork", + .symbol_name = "_do_fork", }; /* kprobe pre_handler: called just before the probed instruction is executed */ |