[patch 2/6] x86, ftrace, hw-branch-tracer: change trace format

From: Markus Metzger
Date: Mon Jan 19 2009 - 04:29:31 EST


Change the hw-branch-tracer format.

Signed-off-by: Markus Metzger <markus.t.metzger@xxxxxxxxx>
---

Index: ftrace/kernel/trace/trace_hw_branches.c
===================================================================
--- ftrace.orig/kernel/trace/trace_hw_branches.c 2009-01-14 15:25:42.000000000 +0100
+++ ftrace/kernel/trace/trace_hw_branches.c 2009-01-14 15:26:07.000000000 +0100
@@ -142,10 +142,7 @@

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)
@@ -153,15 +150,15 @@
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;;
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