Merge change 2030 into donut

* changes:
  Add new trace tool for displaying all the memory regions in a process.

emulator/qtools/Android.mk

@@ -147,3 +147,11 @@ LOCAL_C_INCLUDES += $(common_includes)
 LOCAL_CFLAGS += $(common_cflags)
 LOCAL_MODULE := profile_pid
 include $(BUILD_HOST_EXECUTABLE)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := dump_regions.cpp trace_reader.cpp decoder.cpp \
+	read_elf.cpp parse_options.cpp
+LOCAL_C_INCLUDES += $(common_includes)
+LOCAL_CFLAGS += $(common_cflags)
+LOCAL_MODULE := dump_regions
+include $(BUILD_HOST_EXECUTABLE)

emulator/qtools/dump_regions.cpp

@@ -0,0 +1,59 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <string.h>
+#include "trace_reader.h"
+#include "parse_options.h"
+
+typedef TraceReader<> TraceReaderType;
+
+#include "parse_options-inl.h"
+
+void Usage(const char *program)
+{
+    fprintf(stderr, "Usage: %s [options] trace_file\n", program);
+    OptionsUsage();
+}
+
+int main(int argc, char **argv) {
+    // Parse the options
+    ParseOptions(argc, argv);
+    if (argc - optind != 1) {
+        Usage(argv[0]);
+        exit(1);
+    }
+
+    char *trace_filename = argv[optind];
+    TraceReader<> *trace = new TraceReader<>;
+    trace->Open(trace_filename);
+    trace->SetRoot(root);
+
+    while (1) {
+        BBEvent event, ignored;
+        symbol_type *dummy_sym;
+
+        if (GetNextValidEvent(trace, &event, &ignored, &dummy_sym))
+            break;
+    }
+
+    int num_procs;
+    ProcessState *processes = trace->GetProcesses(&num_procs);
+
+    ProcessState *pstate = &processes[0];
+    for (int ii = 0; ii < num_procs; ++ii, ++pstate) {
+        if (pstate->name == NULL)
+            pstate->name = "";
+        ProcessState *manager = pstate->addr_manager;
+        printf("pid %d regions: %d %s",
+               pstate->pid, manager->nregions, pstate->name);
+        for (int jj = 1; jj < pstate->argc; ++jj) {
+            printf(" %s", pstate->argv[jj]);
+        }
+        printf("\n");
+        trace->DumpRegions(stdout, pstate);
+    }
+
+    delete trace;
+    return 0;
+}