* [PATCH 02/10] trace_syscalls: fix SYSCALL_DEFINE0
@ 2009-12-09 7:15 Lai Jiangshan
2009-12-14 12:01 ` Frederic Weisbecker
0 siblings, 1 reply; 3+ messages in thread
From: Lai Jiangshan @ 2009-12-09 7:15 UTC (permalink / raw)
To: Ingo Molnar, Steven Rostedt, Frederic Weisbecker,
Masami Hiramatsu, Jason Baron, LKML
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, \
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 02/10] trace_syscalls: fix SYSCALL_DEFINE0
2009-12-09 7:15 [PATCH 02/10] trace_syscalls: fix SYSCALL_DEFINE0 Lai Jiangshan
@ 2009-12-14 12:01 ` Frederic Weisbecker
0 siblings, 0 replies; 3+ messages in thread
From: Frederic Weisbecker @ 2009-12-14 12:01 UTC (permalink / raw)
To: Lai Jiangshan
Cc: Ingo Molnar, Steven Rostedt, Masami Hiramatsu, Jason Baron, LKML
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>
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH 02/10] trace_syscalls: fix SYSCALL_DEFINE0
@ 2009-12-15 7:39 Lai Jiangshan
0 siblings, 0 replies; 3+ messages in thread
From: Lai Jiangshan @ 2009-12-15 7:39 UTC (permalink / raw)
To: Ingo Molnar, Steven Rostedt, Frederic Weisbecker,
Masami Hiramatsu, Jason Baron, LKML
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>
Acked-by: Frederic Weisbecker <fweisbec@gmail.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, \
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2009-12-15 7:40 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-12-09 7:15 [PATCH 02/10] trace_syscalls: fix SYSCALL_DEFINE0 Lai Jiangshan
2009-12-14 12:01 ` Frederic Weisbecker
2009-12-15 7:39 Lai Jiangshan
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).