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 # We only emulate a fake libc++ in this test and don't use the real libc++, 13 # but we still add the libc++ category so that this test is only run in 14 # test configurations where libc++ is actually supposed to be tested. 15 @add_test_categories(["libc++"]) 16 @skipIfRemote 17 @skipIf(compiler=no_match("clang")) 18 def test(self): 19 self.build() 20 21 sysroot = os.path.join(os.getcwd(), "root") 22 23 # Set the sysroot. 24 self.runCmd( 25 "platform select --sysroot '" + sysroot + "' host", CURRENT_EXECUTABLE_SET 26 ) 27 28 lldbutil.run_to_source_breakpoint( 29 self, "// Set break point at this line.", lldb.SBFileSpec("main.cpp") 30 ) 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( 41 "expr (size_t)v.size()", substrs=["Couldn't look up symbols"], error=True 42 ) 43