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Breakpad processor: Have RetrieveNearestRange correctly return range extent.

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RangeMaps use the range's upper end as the key in the underlying map,
but RetrieveNearestRange was treating the key as the lower end.

a=jimblandy, r=mmentovai


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@501 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
jimblandy 2010-01-27 19:10:06 +00:00
parent 057aa1f617
commit 97f1da43ae
2 changed files with 19 additions and 2 deletions
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2
src/processor/range_map-inl.h
View file

@ -156,7 +156,7 @@ bool RangeMap<AddressType, EntryType>::RetrieveNearestRange(
*entry = iterator->second.entry();
if (entry_base)
*entry_base = iterator->first;
*entry_base = iterator->second.base();
if (entry_size)
*entry_size = iterator->first - iterator->second.base() + 1;

19
src/processor/range_map_unittest.cc
View file

@ -210,10 +210,11 @@ static bool RetrieveTest(TestMap *range_map, const RangeTest *range_test) {
linked_ptr<CountedObject> nearest_object;
AddressType nearest_base;
AddressType nearest_size;
bool retrieved_nearest = range_map->RetrieveNearestRange(address,
&nearest_object,
&nearest_base,
NULL);
&nearest_size);
// When checking one greater than the high side, RetrieveNearestRange
// should usually return the test range. When a different range begins
@ -237,6 +238,22 @@ static bool RetrieveTest(TestMap *range_map, const RangeTest *range_test) {
observed_nearest ? "true" : "false");
return false;
}
// If a range was successfully retrieved, check that the returned
// bounds match the range as stored.
if (expected_nearest &&
(nearest_base != range_test->address ||
nearest_size != range_test->size)) {
fprintf(stderr, "FAILED: "
"RetrieveNearestRange id %d, side %d, offset %d, "
"expected base/size %d/%d, observed %d/%d\n",
range_test->id,
side,
offset,
range_test->address, range_test->size,
nearest_base, nearest_size);
return false;
}
}
}