diff options
| author | Bjoern B. Brandenburg <bbb@cs.unc.edu> | 2009-03-02 16:16:35 -0500 |
|---|---|---|
| committer | Bjoern B. Brandenburg <bbb@cs.unc.edu> | 2009-03-02 16:16:35 -0500 |
| commit | acbe757a454b9cf0b810f5a4125da7243500bc96 (patch) | |
| tree | e2170bbed8e7a27f1e6b83cf8dc3ed813c8bc3c1 /arch/x86 | |
| parent | 95f567bb53b3592d722c340c56aaabd5fc78a135 (diff) | |
add sys_null_call() to enable system call overhead tracing
A simple noop system call to record kernel entry and exit
times.
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/syscall_table_32.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index f6fdb0a885..65496c26da 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S | |||
| @@ -339,4 +339,5 @@ ENTRY(sys_call_table) | |||
| 339 | .long sys_query_job_no | 339 | .long sys_query_job_no |
| 340 | .long sys_wait_for_job_release | 340 | .long sys_wait_for_job_release |
| 341 | .long sys_wait_for_ts_release | 341 | .long sys_wait_for_ts_release |
| 342 | .long sys_release_ts /* 339 */ | 342 | .long sys_release_ts |
| 343 | .long sys_null_call /* 340 */ | ||