diff options
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588')
4 files changed, 154 insertions, 0 deletions
diff --git a/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/Makefile b/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/Makefile new file mode 100644 index 00000000000..8a7102e347a --- /dev/null +++ b/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/Makefile @@ -0,0 +1,5 @@ +LEVEL = ../../make + +CXX_SOURCES := main.cpp + +include $(LEVEL)/Makefile.rules diff --git a/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/Test11588.py b/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/Test11588.py new file mode 100644 index 00000000000..2c20b63cfd9 --- /dev/null +++ b/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/Test11588.py @@ -0,0 +1,67 @@ +""" +Test the solution to issue 11581. +valobj.AddressOf() returns None when an address is +expected in a SyntheticChildrenProvider +""" + +from __future__ import print_function + + +import lldb +from lldbsuite.test.decorators import * +from lldbsuite.test.lldbtest import * +from lldbsuite.test import lldbutil + + +class Issue11581TestCase(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778") + def test_11581_commands(self): + # This is the function to remove the custom commands in order to have a + # clean slate for the next test case. + def cleanup(): + self.runCmd('type synthetic clear', check=False) + + # Execute the cleanup function during test case tear down. + self.addTearDownHook(cleanup) + + """valobj.AddressOf() should return correct values.""" + self.build() + + (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self, + 'Set breakpoint here.', + lldb.SBFileSpec("main.cpp", False)) + self.runCmd("command script import --allow-reload s11588.py") + self.runCmd( + "type synthetic add --python-class s11588.Issue11581SyntheticProvider StgClosure") + + self.expect("expr --show-types -- *((StgClosure*)(r14-1))", + substrs=["(StgClosure) $", + "(StgClosure *) &$", "0x", + "addr = ", + "load_address = "]) + + # register r14 is an x86_64 extension let's skip this part of the test + # if we are on a different architecture + if self.getArchitecture() == 'x86_64': + target = self.dbg.GetSelectedTarget() + process = target.GetProcess() + frame = process.GetSelectedThread().GetSelectedFrame() + pointer = frame.FindVariable("r14") + addr = pointer.GetValueAsUnsigned(0) + self.assertTrue(addr != 0, "could not read pointer to StgClosure") + addr = addr - 1 + self.runCmd("register write r14 %d" % addr) + self.expect( + "register read r14", substrs=[ + "0x", hex(addr)[ + 2:].rstrip("L")]) # Remove trailing 'L' if it exists + self.expect("expr --show-types -- *(StgClosure*)$r14", + substrs=["(StgClosure) $", + "(StgClosure *) &$", "0x", + "addr = ", + "load_address = ", + hex(addr)[2:].rstrip("L"), + str(addr)]) diff --git a/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/main.cpp b/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/main.cpp new file mode 100644 index 00000000000..4f9ea3abf18 --- /dev/null +++ b/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/main.cpp @@ -0,0 +1,54 @@ +// +// 11588.cpp +// + +#include <iostream> + +class StgInfoTable {}; + +class StgHeader +{ +private: + StgInfoTable* info; +public: + StgHeader() + { + info = new StgInfoTable(); + } + ~StgHeader() + { + delete info; + } +}; + +class StgClosure +{ +private: + StgHeader header; + StgClosure* payload[1]; +public: + StgClosure(bool make_payload = true) + { + if (make_payload) + payload[0] = new StgClosure(false); + else + payload[0] = NULL; + } + ~StgClosure() + { + if (payload[0]) + delete payload[0]; + } +}; + +typedef unsigned long long int ptr_type; + +int main() +{ + StgClosure* r14_ = new StgClosure(); + r14_ = (StgClosure*)(((ptr_type)r14_ | 0x01)); // set the LSB to 1 for tagging + ptr_type r14 = (ptr_type)r14_; + int x = 0; + x = 3; + return (x-1); // Set breakpoint here. +} diff --git a/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/s11588.py b/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/s11588.py new file mode 100644 index 00000000000..51c20423ed3 --- /dev/null +++ b/lldb/packages/Python/lldbsuite/test/commands/expression/issue_11588/s11588.py @@ -0,0 +1,28 @@ +class Issue11581SyntheticProvider(object): + + def __init__(self, valobj, dict): + self.valobj = valobj + self.addrOf = valobj.AddressOf() + self.addr = valobj.GetAddress() + self.load_address = valobj.GetLoadAddress() + + def num_children(self): + return 3 + + def get_child_at_index(self, index): + if index == 0: + return self.addrOf + if index == 1: + return self.valobj.CreateValueFromExpression( + "addr", str(self.addr)) + if index == 2: + return self.valobj.CreateValueFromExpression( + "load_address", str(self.load_address)) + + def get_child_index(self, name): + if name == "addrOf": + return 0 + if name == "addr": + return 1 + if name == "load_address": + return 2 |
