auto import from //depot/cupcake/@135843
diff --git a/emulator/qtools/exc_dump.cpp b/emulator/qtools/exc_dump.cpp
new file mode 100644
index 0000000..166586f
--- /dev/null
+++ b/emulator/qtools/exc_dump.cpp
@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include "trace_reader_base.h"
+
+int main(int argc, char **argv) {
+ if (argc != 2) {
+ fprintf(stderr, "Usage: %s trace_file\n", argv[0]);
+ exit(1);
+ }
+
+ char *trace_filename = argv[1];
+ TraceReaderBase *trace = new TraceReaderBase;
+ trace->Open(trace_filename);
+
+ while (1) {
+ uint64_t time, recnum, bb_num, bb_start_time;
+ uint32_t pc, target_pc;
+ int num_insns;
+
+ if (trace->ReadExc(&time, &pc, &recnum, &target_pc, &bb_num,
+ &bb_start_time, &num_insns))
+ break;
+ printf("time: %lld rec: %llu pc: %08x target: %08x bb: %llu bb_start: %llu insns: %d\n",
+ time, recnum, pc, target_pc, bb_num, bb_start_time, num_insns);
+ }
+ return 0;
+}