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function-graph: consolidate prologues for output

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Impact: clean up

The prologue of the function graph entry, return and comments all
start out pretty much the same. Each of these duplicate code and
do so slightly differently.

This patch consolidates the printing of the pid, absolute time,
cpu and proc (and for entry, the interrupt).

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
This commit is contained in:
Steven Rostedt 2009-03-19 11:29:23 -04:00
parent e9d9df4473
commit ac5f6c9685
1 changed files with 29 additions and 69 deletions
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98
kernel/trace/trace_functions_graph.c
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@ -554,24 +554,24 @@ print_graph_entry_nested(struct ftrace_graph_ent_entry *entry,
}
static enum print_line_t
print_graph_entry(struct ftrace_graph_ent_entry *field, struct trace_seq *s,
struct trace_iterator *iter)
print_graph_prologue(struct trace_iterator *iter, struct trace_seq *s,
int type, unsigned long addr)
{
int ret;
int cpu = iter->cpu;
pid_t *last_entry = iter->private;
struct trace_entry *ent = iter->ent;
struct ftrace_graph_ent *call = &field->graph_ent;
struct ftrace_graph_ret_entry *leaf_ret;
pid_t *last_pid = iter->private;
int cpu = iter->cpu;
int ret;
/* Pid */
if (verif_pid(s, ent->pid, cpu, last_entry) == TRACE_TYPE_PARTIAL_LINE)
if (verif_pid(s, ent->pid, cpu, last_pid) == TRACE_TYPE_PARTIAL_LINE)
return TRACE_TYPE_PARTIAL_LINE;
/* Interrupt */
ret = print_graph_irq(iter, call->func, TRACE_GRAPH_ENT, cpu, ent->pid);
if (ret == TRACE_TYPE_PARTIAL_LINE)
return TRACE_TYPE_PARTIAL_LINE;
if (type) {
/* Interrupt */
ret = print_graph_irq(iter, addr, type, cpu, ent->pid);
if (ret == TRACE_TYPE_PARTIAL_LINE)
return TRACE_TYPE_PARTIAL_LINE;
}
/* Absolute time */
if (tracer_flags.val & TRACE_GRAPH_PRINT_ABS_TIME) {
@ -598,6 +598,20 @@ print_graph_entry(struct ftrace_graph_ent_entry *field, struct trace_seq *s,
return TRACE_TYPE_PARTIAL_LINE;
}
return 0;
}
static enum print_line_t
print_graph_entry(struct ftrace_graph_ent_entry *field, struct trace_seq *s,
struct trace_iterator *iter)
{
int cpu = iter->cpu;
struct ftrace_graph_ent *call = &field->graph_ent;
struct ftrace_graph_ret_entry *leaf_ret;
if (print_graph_prologue(iter, s, TRACE_GRAPH_ENT, call->func))
return TRACE_TYPE_PARTIAL_LINE;
leaf_ret = get_return_for_leaf(iter, field);
if (leaf_ret)
return print_graph_entry_leaf(iter, field, leaf_ret, s);
@ -613,38 +627,12 @@ print_graph_return(struct ftrace_graph_ret *trace, struct trace_seq *s,
int i;
int ret;
int cpu = iter->cpu;
pid_t *last_pid = iter->private, pid = ent->pid;
pid_t pid = ent->pid;
unsigned long long duration = trace->rettime - trace->calltime;
/* Pid */
if (verif_pid(s, pid, cpu, last_pid) == TRACE_TYPE_PARTIAL_LINE)
if (print_graph_prologue(iter, s, 0, 0))
return TRACE_TYPE_PARTIAL_LINE;
/* Absolute time */
if (tracer_flags.val & TRACE_GRAPH_PRINT_ABS_TIME) {
ret = print_graph_abs_time(iter->ts, s);
if (!ret)
return TRACE_TYPE_PARTIAL_LINE;
}
/* Cpu */
if (tracer_flags.val & TRACE_GRAPH_PRINT_CPU) {
ret = print_graph_cpu(s, cpu);
if (ret == TRACE_TYPE_PARTIAL_LINE)
return TRACE_TYPE_PARTIAL_LINE;
}
/* Proc */
if (tracer_flags.val & TRACE_GRAPH_PRINT_PROC) {
ret = print_graph_proc(s, ent->pid);
if (ret == TRACE_TYPE_PARTIAL_LINE)
return TRACE_TYPE_PARTIAL_LINE;
ret = trace_seq_printf(s, " | ");
if (!ret)
return TRACE_TYPE_PARTIAL_LINE;
}
/* Overhead */
ret = print_graph_overhead(duration, s);
if (!ret)
@ -689,38 +677,10 @@ print_graph_comment(struct bprint_entry *trace, struct trace_seq *s,
{
int i;
int ret;
int cpu = iter->cpu;
pid_t *last_pid = iter->private;
/* Pid */
if (verif_pid(s, ent->pid, cpu, last_pid) == TRACE_TYPE_PARTIAL_LINE)
if (print_graph_prologue(iter, s, 0, 0))
return TRACE_TYPE_PARTIAL_LINE;
/* Absolute time */
if (tracer_flags.val & TRACE_GRAPH_PRINT_ABS_TIME) {
ret = print_graph_abs_time(iter->ts, s);
if (!ret)
return TRACE_TYPE_PARTIAL_LINE;
}
/* Cpu */
if (tracer_flags.val & TRACE_GRAPH_PRINT_CPU) {
ret = print_graph_cpu(s, cpu);
if (ret == TRACE_TYPE_PARTIAL_LINE)
return TRACE_TYPE_PARTIAL_LINE;
}
/* Proc */
if (tracer_flags.val & TRACE_GRAPH_PRINT_PROC) {
ret = print_graph_proc(s, ent->pid);
if (ret == TRACE_TYPE_PARTIAL_LINE)
return TRACE_TYPE_PARTIAL_LINE;
ret = trace_seq_printf(s, " | ");
if (!ret)
return TRACE_TYPE_PARTIAL_LINE;
}
/* No overhead */
ret = print_graph_overhead(-1, s);
if (!ret)