Cleanup event argument definition code in one place for maintenancability.
Signed-off-by: Masami Hiramatsu mhiramat@kernel.org --- kernel/trace/trace_kprobe.c | 32 ++++---------------------------- kernel/trace/trace_probe.c | 21 +++++++++++++++++++++ kernel/trace/trace_probe.h | 2 ++ kernel/trace/trace_uprobe.c | 15 ++------------- 4 files changed, 29 insertions(+), 41 deletions(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 503827750446..1018867022b6 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -1146,49 +1146,25 @@ print_kretprobe_event(struct trace_iterator *iter, int flags,
static int kprobe_event_define_fields(struct trace_event_call *event_call) { - int ret, i; + int ret; struct kprobe_trace_entry_head field; struct trace_kprobe *tk = (struct trace_kprobe *)event_call->data;
DEFINE_FIELD(unsigned long, ip, FIELD_STRING_IP, 0); - /* Set argument names as fields */ - for (i = 0; i < tk->tp.nr_args; i++) { - struct probe_arg *parg = &tk->tp.args[i];
- ret = trace_define_field(event_call, parg->type->fmttype, - parg->name, - sizeof(field) + parg->offset, - parg->type->size, - parg->type->is_signed, - FILTER_OTHER); - if (ret) - return ret; - } - return 0; + return traceprobe_define_arg_fields(event_call, sizeof(field), &tk->tp); }
static int kretprobe_event_define_fields(struct trace_event_call *event_call) { - int ret, i; + int ret; struct kretprobe_trace_entry_head field; struct trace_kprobe *tk = (struct trace_kprobe *)event_call->data;
DEFINE_FIELD(unsigned long, func, FIELD_STRING_FUNC, 0); DEFINE_FIELD(unsigned long, ret_ip, FIELD_STRING_RETIP, 0); - /* Set argument names as fields */ - for (i = 0; i < tk->tp.nr_args; i++) { - struct probe_arg *parg = &tk->tp.args[i];
- ret = trace_define_field(event_call, parg->type->fmttype, - parg->name, - sizeof(field) + parg->offset, - parg->type->size, - parg->type->is_signed, - FILTER_OTHER); - if (ret) - return ret; - } - return 0; + return traceprobe_define_arg_fields(event_call, sizeof(field), &tk->tp); }
#ifdef CONFIG_PERF_EVENTS diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index e90cccf0adc7..92d96ed6a2bf 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -680,3 +680,24 @@ int set_print_fmt(struct trace_probe *tp, bool is_return)
return 0; } + +int traceprobe_define_arg_fields(struct trace_event_call *event_call, + size_t offset, struct trace_probe *tp) +{ + int ret, i; + + /* Set argument names as fields */ + for (i = 0; i < tp->nr_args; i++) { + struct probe_arg *parg = &tp->args[i]; + + ret = trace_define_field(event_call, parg->type->fmttype, + parg->name, + offset + parg->offset, + parg->type->size, + parg->type->is_signed, + FILTER_OTHER); + if (ret) + return ret; + } + return 0; +} diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h index 0c8e66f9c855..de928052926b 100644 --- a/kernel/trace/trace_probe.h +++ b/kernel/trace/trace_probe.h @@ -440,3 +440,5 @@ extern struct trace_event_call * create_local_trace_uprobe(char *name, unsigned long offs, bool is_return); extern void destroy_local_trace_uprobe(struct trace_event_call *event_call); #endif +extern int traceprobe_define_arg_fields(struct trace_event_call *event_call, + size_t offset, struct trace_probe *tp); diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index 4c006a693663..887da2bb63aa 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -982,7 +982,7 @@ probe_event_disable(struct trace_uprobe *tu, struct trace_event_file *file)
static int uprobe_event_define_fields(struct trace_event_call *event_call) { - int ret, i, size; + int ret, size; struct uprobe_trace_entry_head field; struct trace_uprobe *tu = event_call->data;
@@ -994,19 +994,8 @@ static int uprobe_event_define_fields(struct trace_event_call *event_call) DEFINE_FIELD(unsigned long, vaddr[0], FIELD_STRING_IP, 0); size = SIZEOF_TRACE_ENTRY(false); } - /* Set argument names as fields */ - for (i = 0; i < tu->tp.nr_args; i++) { - struct probe_arg *parg = &tu->tp.args[i]; - - ret = trace_define_field(event_call, parg->type->fmttype, - parg->name, size + parg->offset, - parg->type->size, parg->type->is_signed, - FILTER_OTHER);
- if (ret) - return ret; - } - return 0; + return traceprobe_define_arg_fields(event_call, size, &tu->tp); }
#ifdef CONFIG_PERF_EVENTS
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