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authorLi Zefan <lizf@cn.fujitsu.com>2009-08-17 16:55:18 +0800
committerIngo Molnar <mingo@elte.hu>2009-08-17 11:25:09 +0200
commitba8b3a40ba7e06d00c27508f090803af90e8dbbf (patch)
tree7805446c5a6a945dddb872a9b84c3ceee30d1583 /kernel/trace
parent7ead8b8313d92b3a69a1a61b0dcbc4cd66c960dc (diff)
tracing/syscalls: Fix to print parameter types
When syscall tracing was implemented as a tracer, "syscall_arg_type" trace option could be set to enable the display of syscall parameter types. Now this option is gone since it's no longer a tracer, but the code is still there but dead. So we remove dead code and re-enable the printing of paramete types via the verbose option: # echo verbose > trace_options # echo syscalls > set_event # cat trace ... bash-3331 [000] 95.348937: sys_fcntl64 -> 0x1 bash-3331 [000] 95.348942: sys_close(unsigned int fd: a) ... Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jason Baron <jbaron@redhat.com> LKML-Reference: <4A891AF6.5050102@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace_syscalls.c17
1 files changed, 1 insertions, 16 deletions
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index f837cccabcf..f130dacfeef 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -13,21 +13,6 @@ static int sys_refcount_exit;
static DECLARE_BITMAP(enabled_enter_syscalls, FTRACE_SYSCALL_MAX);
static DECLARE_BITMAP(enabled_exit_syscalls, FTRACE_SYSCALL_MAX);
-/* Option to display the parameters types */
-enum {
- TRACE_SYSCALLS_OPT_TYPES = 0x1,
-};
-
-static struct tracer_opt syscalls_opts[] = {
- { TRACER_OPT(syscall_arg_type, TRACE_SYSCALLS_OPT_TYPES) },
- { }
-};
-
-static struct tracer_flags syscalls_flags = {
- .val = 0, /* By default: no parameters types */
- .opts = syscalls_opts
-};
-
enum print_line_t
print_syscall_enter(struct trace_iterator *iter, int flags)
{
@@ -55,7 +40,7 @@ print_syscall_enter(struct trace_iterator *iter, int flags)
for (i = 0; i < entry->nb_args; i++) {
/* parameter types */
- if (syscalls_flags.val & TRACE_SYSCALLS_OPT_TYPES) {
+ if (trace_flags & TRACE_ITER_VERBOSE) {
ret = trace_seq_printf(s, "%s ", entry->types[i]);
if (!ret)
return TRACE_TYPE_PARTIAL_LINE;