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x86, ftrace, hw-branch-tracer: change trace format 

Change the hw-branch-tracer format to be more readable.

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Markus Metzger 2009-01-19 10:29:16 +01:00 committed by Ingo Molnar
parent e23b8ad834
commit 11edda0628
1 changed files with 5 additions and 8 deletions
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13
kernel/trace/trace_hw_branches.c
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@ -146,10 +146,7 @@ static void bts_trace_reset(struct trace_array *tr)
static void bts_trace_print_header(struct seq_file *m)
{
seq_puts(m,
"# CPU# FROM TO FUNCTION\n");
seq_puts(m,
"# | | | |\n");
seq_puts(m, "# CPU# TO <- FROM\n");
}
static enum print_line_t bts_trace_print_line(struct trace_iterator *iter)
@ -157,15 +154,15 @@ static enum print_line_t bts_trace_print_line(struct trace_iterator *iter)
struct trace_entry *entry = iter->ent;
struct trace_seq *seq = &iter->seq;
struct hw_branch_entry *it;
unsigned long symflags = TRACE_ITER_SYM_OFFSET;
trace_assign_type(it, entry);
if (entry->type == TRACE_HW_BRANCHES) {
if (trace_seq_printf(seq, "%4d ", entry->cpu) &&
trace_seq_printf(seq, "0x%016llx -> 0x%016llx ",
it->from, it->to) &&
(!it->from ||
seq_print_ip_sym(seq, it->from, /* sym_flags = */ 0)) &&
seq_print_ip_sym(seq, it->to, symflags) &&
trace_seq_printf(seq, "\t <- ") &&
seq_print_ip_sym(seq, it->from, symflags) &&
trace_seq_printf(seq, "\n"))
return TRACE_TYPE_HANDLED;
return TRACE_TYPE_PARTIAL_LINE;;