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authorLai Jiangshan <laijs@cn.fujitsu.com>2009-12-01 11:23:47 +0300
committerIngo Molnar <mingo@elte.hu>2009-12-01 19:33:29 +0300
commitc252f65793874b56d50395ab604db465ce688665 (patch)
tree30bc32361d2b368679910270ec4e99e841fa099b /include
parentfcc19438dda38dacc8c144e2db3ebc6b9fd4f8b8 (diff)
downloadlinux-c252f65793874b56d50395ab604db465ce688665.tar.xz
trace_syscalls: Add syscall_nr field to struct syscall_metadata
Add syscall_nr field to struct syscall_metadata, it helps us to get syscall number easier. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Jason Baron <jbaron@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <4B14D293.6090800@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
-rw-r--r--include/linux/syscalls.h4
-rw-r--r--include/trace/syscall.h3
2 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b9af87560adb..3c280d7ecb76 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -161,7 +161,7 @@ static void prof_sysexit_disable_##sname(struct ftrace_event_call *unused) \
static int init_enter_##sname(struct ftrace_event_call *call) \
{ \
int num, id; \
- num = syscall_name_to_nr("sys"#sname); \
+ num = __syscall_meta_##sname.syscall_nr; \
if (num < 0) \
return -ENOSYS; \
id = register_ftrace_event(&enter_syscall_print_##sname);\
@@ -197,7 +197,7 @@ static void prof_sysexit_disable_##sname(struct ftrace_event_call *unused) \
static int init_exit_##sname(struct ftrace_event_call *call) \
{ \
int num, id; \
- num = syscall_name_to_nr("sys"#sname); \
+ num = __syscall_meta_##sname.syscall_nr; \
if (num < 0) \
return -ENOSYS; \
id = register_ftrace_event(&exit_syscall_print_##sname);\
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index ca09561cd578..1531eef3071f 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -12,6 +12,7 @@
* A syscall entry in the ftrace syscalls array.
*
* @name: name of the syscall
+ * @syscall_nr: number of the syscall
* @nb_args: number of parameters it takes
* @types: list of types as strings
* @args: list of args as strings (args[i] matches types[i])
@@ -20,6 +21,7 @@
*/
struct syscall_metadata {
const char *name;
+ int syscall_nr;
int nb_args;
const char **types;
const char **args;
@@ -30,7 +32,6 @@ struct syscall_metadata {
#ifdef CONFIG_FTRACE_SYSCALLS
extern unsigned long arch_syscall_addr(int nr);
-extern int syscall_name_to_nr(const char *name);
extern int syscall_enter_format(struct ftrace_event_call *call,
struct trace_seq *s);