Add support for IRQ flag and counter in binary trace format.wip-ft-irq-flag

This introduces the new bit allocation and adds support to ftdump
for showing the values.

Not yet included is any support for filtering based on IRQ
interference.

2 files changed, 13 insertions, 10 deletions

diff --git a/include/timestamp.h b/include/timestamp.h
index f3dd6b8..75ab79a 100644
--- a/include/timestamp.h
+++ b/include/timestamp.h
@@ -14,7 +14,9 @@ struct timestamp {
         uint32_t                seq_no;
         uint8_t                 cpu;
         uint8_t                 event;
-        uint8_t                 task_type;
+        uint8_t                 task_type:2;
+        uint8_t                 irq_flag:1;
+        uint8_t                 irq_count:5;
 };
 
 typedef uint32_t cmd_t;
diff --git a/src/ftdump.c b/src/ftdump.c
index 39747c9..1462c4d 100644
--- a/src/ftdump.c
+++ b/src/ftdump.c
@@ -38,19 +38,22 @@ static void dump(struct timestamp* ts, size_t count)
                         printf("==== non-consecutive sequence number ====\n");
                 last_seq = x->seq_no;
                 if (name)
-                        printf("%-20s seq:%u  timestamp:%llu  cpu:%d  type:%-8s \n",
+                        printf("%-20s seq:%u  timestamp:%llu  cpu:%d  type:%-8s irq:%u irqc:%02u \n",
                                name,  x->seq_no,
                                (unsigned long long)  x->timestamp,
                                x->cpu,
-                               task_type2str(x->task_type));
+                               task_type2str(x->task_type),
+                               x->irq_flag,
+                               x->irq_count);
                 else
-                        printf("%16s:%3u seq:%u  timestamp:%llu  cpu:%u  type:%-8s\n",
+                        printf("%16s:%3u seq:%u  timestamp:%llu  cpu:%u  type:%-8s irq:%u irqc:%02u\n",
                                "event",
                                (unsigned int) x->event, x->seq_no,
                                (unsigned long long)  x->timestamp,
                                x->cpu,
-                               task_type2str(x->task_type));
-
+                               task_type2str(x->task_type),
+                               x->irq_flag,
+                               x->irq_count);
         }
 }
 
@@ -75,14 +78,12 @@ int main(int argc, char** argv)
                "\t offset(timestamp) = %3lu\n"
                "\t offset(seq_no)    = %3lu\n"
                "\t offset(cpu)       = %3lu\n"
-               "\t offset(event)     = %3lu\n"
-               "\t offset(task_type) = %3lu\n",
+               "\t offset(event)     = %3lu\n",
                (unsigned long) sizeof(struct timestamp),
                offset(struct timestamp, timestamp),
                offset(struct timestamp, seq_no),
                offset(struct timestamp, cpu),
-               offset(struct timestamp, event),
-               offset(struct timestamp, task_type));
+               offset(struct timestamp, event));
 
         if (argc != 2)
                 die("Usage: ftdump  <logfile>");