Merge google-perftools r109 (the current contents of third_party/tcmalloc/vendor)

third_party/tcmalloc/chromium/src/tests/debugallocation_test.sh

 #!/bin/sh
 
 # Copyright (c) 2009, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
@@ skipping 34 matching lines @@
 num_failures=0
 
 # Run the i-th death test and make sure the test has the expected
 # regexp.  We can depend on the first line of the output being
 #    Expected regex:<regex>
 # Evaluates to "done" if we are not actually a death-test (so $1 is
 # too big a number, and we can stop).  Evaluates to "" otherwise.
 # Increments num_failures if the death test does not succeed.
 OneDeathTest() {
   "$DEBUGALLOCATION_TEST" "$1" 2>&1 | {
-    read regex_line
-    regex=`expr "$regex_line" : "Expected regex:\(.*\)"`
-    test -z "$regex" && echo "done"  # no regex line, not a death-case
-    grep "$regex" >/dev/null 2>&1    # pass the rest of the lines through grep
-  } || num_failures=`expr $num_failures + 1`
+    regex_line='dummy'
+    # Normally the regex_line is the first line of output, but not
+    # always (if tcmalloc itself does any logging to stderr).
+    while test -n "$regex_line"; do
+      read regex_line
+      regex=`expr "$regex_line" : "Expected regex:\(.*\)"`
+      test -n "$regex" && break   # found the regex line
+    done
+    test -z "$regex" && echo "done" || grep "$regex" 2>&1
+  }
 }
 
 death_test_num=0   # which death test to run
-while test -z `OneDeathTest "$death_test_num"`; do
-  echo "Done with death test $death_test_num"
+while :; do        # same as 'while true', but more portable
+  echo -n "Running death test $death_test_num..."
+  output="`OneDeathTest $death_test_num`"
+  case $output in
+     # Empty string means grep didn't find anything.
+     "")      echo "FAILED"; num_failures=`expr $num_failures + 1`;;
+     "done"*) echo "done with death tests"; break;;
+     # Any other string means grep found something, like it ought to.
+     *)       echo "OK";;
+  esac
   death_test_num=`expr $death_test_num + 1`
 done
 
 # Test the non-death parts of the test too
-if ! "$DEBUGALLOCATION_TEST"; then
+echo -n "Running non-death tests..."
+if "$DEBUGALLOCATION_TEST"; then
+  echo "OK"
+else
+  echo "FAILED"
   num_failures=`expr $num_failures + 1`
 fi
 
 if [ "$num_failures" = 0 ]; then
   echo "PASS"
 else
   echo "Failed with $num_failures failures"
 fi
 exit $num_failures