From ba8b3a40ba7e06d00c27508f090803af90e8dbbf Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Mon, 17 Aug 2009 16:55:18 +0800 Subject: [PATCH] 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 Cc: Steven Rostedt Cc: Frederic Weisbecker Cc: Jason Baron LKML-Reference: <4A891AF6.5050102@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/trace_syscalls.c | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index f837cccabcf7..f130dacfeef4 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; -- 2.39.2