1""" 2Test that LLDB doesn't crash if the std module we load is empty. 3""" 4 5from lldbsuite.test.decorators import * 6from lldbsuite.test.lldbtest import * 7from lldbsuite.test import lldbutil 8import os 9 10 11class ImportStdModule(TestBase): 12 13 # We only emulate a fake libc++ in this test and don't use the real libc++, 14 # but we still add the libc++ category so that this test is only run in 15 # test configurations where libc++ is actually supposed to be tested. 16 @add_test_categories(["libc++"]) 17 @skipIfRemote 18 @skipIf(compiler=no_match("clang")) 19 def test(self): 20 self.build() 21 22 sysroot = os.path.join(os.getcwd(), "root") 23 24 # Set the sysroot. 25 self.runCmd("platform select --sysroot '" + sysroot + "' host", 26 CURRENT_EXECUTABLE_SET) 27 28 lldbutil.run_to_source_breakpoint(self, 29 "// Set break point at this line.", 30 lldb.SBFileSpec("main.cpp")) 31 32 self.runCmd("settings set target.import-std-module true") 33 34 # Use the typedef that is only defined in our 'empty' module. If this fails, then LLDB 35 # somehow figured out the correct define for the header and compiled the right 36 # standard module that actually contains the std::vector template. 37 self.expect("expr MissingContent var = 3; var", substrs=['$0 = 3']) 38 # Try to access our mock std::vector. This should fail but not crash LLDB as the 39 # std::vector template should be missing from the std module. 40 self.expect("expr (size_t)v.size()", 41 substrs=["Couldn't lookup symbols"], 42 error=True) 43