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Handle frame pointer omission, (#21), part 4 (final part!): FPO stackwalker.

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r=bryner
 - This change allows Airbag to properly walk win32 stacks produced by code
   built with MSVC's frame pointer omission optimization (/Oy).  This
   optimization is enabled at /O1 and /O2.
 - There too many interface and file format changes to list here.

85ce85bfa8


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@42 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
mmentovai 2006-10-20 01:46:38 +00:00
parent 5afd60b067
commit 246f406828
33 changed files with 2643 additions and 1744 deletions
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30
src/processor/postfix_evaluator_unittest.cc
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@ -61,7 +61,7 @@ struct EvaluateTest {
struct EvaluateTestSet {
// The dictionary used for all tests in the set.
map<string, unsigned int> *dictionary;
PostfixEvaluator<unsigned int>::DictionaryType *dictionary;
// The list of tests.
const EvaluateTest *evaluate_tests;
@ -77,7 +77,7 @@ struct EvaluateTestSet {
bool RunTests() {
// The first test set checks the basic operations and failure modes.
map<string, unsigned int> dictionary_0;
PostfixEvaluator<unsigned int>::DictionaryType dictionary_0;
const EvaluateTest evaluate_tests_0[] = {
{ "$rAdd 2 2 + =", true }, // $rAdd = 2 + 2 = 4
{ "$rAdd $rAdd 2 + =", true }, // $rAdd = $rAdd + 2 = 6
@ -122,7 +122,7 @@ bool RunTests() {
// The data is fudged a little bit because the tests use FakeMemoryRegion
// instead of a real stack snapshot, but the program strings are real and
// the implementation doesn't know or care that the data is not real.
map<string, unsigned int> dictionary_1;
PostfixEvaluator<unsigned int>::DictionaryType dictionary_1;
dictionary_1["$ebp"] = 0xbfff0010;
dictionary_1["$eip"] = 0x10000000;
dictionary_1["$esp"] = 0xbfff0000;
@ -186,13 +186,17 @@ bool RunTests() {
// tests can affect the state of the dictionary for later tests.
postfix_evaluator.set_dictionary(evaluate_test_set->dictionary);
// Use a new validity dictionary for each test set.
PostfixEvaluator<unsigned int>::DictionaryValidityType assigned;
for (unsigned int evaluate_test_index = 0;
evaluate_test_index < evaluate_test_count;
++evaluate_test_index) {
const EvaluateTest *evaluate_test = &evaluate_tests[evaluate_test_index];
// Do the test.
bool result = postfix_evaluator.Evaluate(evaluate_test->expression);
bool result = postfix_evaluator.Evaluate(evaluate_test->expression,
&assigned);
if (result != evaluate_test->evaluable) {
fprintf(stderr, "FAIL: evaluate set %d/%d, test %d/%d, "
"expression \"%s\", expected %s, observed %s\n",
@ -236,6 +240,24 @@ bool RunTests() {
identifier.c_str(), expected_value, observed_value);
return false;
}
// The value must be set in the "assigned" dictionary if it was a
// variable. It must not have been assigned if it was a constant.
bool expected_assigned = identifier[0] == '$';
bool observed_assigned = false;
PostfixEvaluator<unsigned int>::DictionaryValidityType::const_iterator
iterator_assigned = assigned.find(identifier);
if (iterator_assigned != assigned.end()) {
observed_assigned = iterator_assigned->second;
}
if (expected_assigned != observed_assigned) {
fprintf(stderr, "FAIL: evaluate test set %d/%d, "
"validate assignment of \"%s\", "
"expected %d, observed %d\n",
evaluate_test_set_index, evaluate_test_set_count,
identifier.c_str(), expected_assigned, observed_assigned);
return false;
}
}
}