Messages in this thread | | | Date | Mon, 14 Dec 2009 13:01:54 +0100 | From | Frederic Weisbecker <> | Subject | Re: [PATCH 02/10] trace_syscalls: fix SYSCALL_DEFINE0 |
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On Wed, Dec 09, 2009 at 03:15:18PM +0800, Lai Jiangshan wrote: > > struct syscall_metadata variable name in SYSCALL_DEFINE0 > is not the same as SYSCALL_DEFINE1/2/3/4/5/6. > > SYSCALL_TRACE_ENTER_EVENT() and SYSCALL_TRACE_EXIT_EVENT() expect > struct syscall_metadata's name is __syscall_meta__XXXXXX > as SYSCALL_DEFINE1/2/3/4/5/6 defines. > > It causes event_enter_##sname->data points to a wrong place. > (event_enter_##sname->data points to a dummy struct syscall_metadata) > > It causes syscalls which are defined by SYSCALL_DEFINE0() can not be traced. > > Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> > --- > diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h > index 55e7108..bee1d41 100644 > --- a/include/linux/syscalls.h > +++ b/include/linux/syscalls.h > @@ -196,7 +196,7 @@ struct perf_event_attr; > static const struct syscall_metadata __used \ > __attribute__((__aligned__(4))) \ > __attribute__((section("__syscalls_metadata"))) \ > - __syscall_meta_##sname = { \ > + __syscall_meta__##sname = { \ > .name = "sys_"#sname, \ > .nb_args = 0, \ > .enter_event = &event_enter__##sname, \
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
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