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[ASan/Win] Print out a big warning and continue without checking for success if SymInitialize() fails 

llvm-svn: 215203
This commit is contained in:
Timur Iskhodzhanov 2014-08-08 13:25:55 +00:00
parent 12152ab92e
commit 255958391d
2 changed files with 10 additions and 4 deletions
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9
compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_win.cc
View File

@ -40,8 +40,13 @@ class WinSymbolizer : public Symbolizer {
// Anyways, we have to reconfigure stuff to make sure that SymInitialize
// has all the appropriate options set.
// Cross our fingers and reinitialize DbgHelp.
CHECK(SymCleanup(GetCurrentProcess()));
CHECK(TrySymInitialize());
Report("*** WARNING: Failed to initialize DbgHelp! ***\n");
Report("*** Most likely this means that the app is already ***\n");
Report("*** using DbgHelp, possibly with incompatible flags. ***\n");
Report("*** Due to technical reasons, symbolization might crash ***\n");
Report("*** or produce wrong results. ***\n");
SymCleanup(GetCurrentProcess());
TrySymInitialize();
}
initialized_ = true;
}

5
compiler-rt/test/asan/TestCases/Windows/report_after_syminitialize.cc
View File

@ -11,8 +11,9 @@ int main() {
if (!SymInitialize(GetCurrentProcess(), 0, FALSE))
return 42;
*(int*)0 = 42;
*(volatile int*)0 = 42;
// CHECK: ERROR: AddressSanitizer: access-violation on unknown address
// CHECK-NEXT: {{#0 0x.* in main.*report_after_syminitialize.cc:}}[[@LINE-2]]
// CHECK-NEXT: {{WARNING: .*DbgHelp}}
// CHECK: {{#0 0x.* in main.*report_after_syminitialize.cc:}}[[@LINE-3]]
// CHECK: AddressSanitizer can not provide additional info.
}