alvinhochun created this revision. Herald added a project: All. alvinhochun requested review of this revision. Herald added a project: LLDB. Herald added a subscriber: lldb-commits.
In `ProcessWindows::OnDebuggerConnected` (triggered from `CREATE_PROCESS_DEBUG_EVENT`), we should always call `Target::SetExecutableModule` regardless of whether LLDB has already preloaded the executable modules. `SetExecutableModule` has the side effect of clearing the module list of the Target, which help make sure that module #0 is the executable module and the rest of the modules are listed according to the DLL load order in the process (technically this has no real consequences but it seems to make more sense anyway.) Depends on D134581 <https://reviews.llvm.org/D134581> Repository: rG LLVM Github Monorepo https://reviews.llvm.org/D134636 Files: lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp lldb/test/Shell/Target/dependent-modules-nodupe-windows.test Index: lldb/test/Shell/Target/dependent-modules-nodupe-windows.test =================================================================== --- lldb/test/Shell/Target/dependent-modules-nodupe-windows.test +++ lldb/test/Shell/Target/dependent-modules-nodupe-windows.test @@ -18,5 +18,7 @@ # CHECK-LABEL: #after # CHECK-NEXT: target modules list # CHECK-NEXT: .main.exe -# CHECK-NEXT: .shlib.dll +# CHECK-NEXT: ntdll.dll +# CHECK-NEXT: kernel32.dll +# CHECK: .shlib.dll # CHECK-NOT: .shlib.dll Index: lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp =================================================================== --- lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp +++ lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp @@ -653,28 +653,26 @@ LLDB_LOG(log, "Debugger connected to process {0}. Image base = {1:x}", debugger->GetProcess().GetProcessId(), image_base); - ModuleSP module = GetTarget().GetExecutableModule(); - if (!module) { - // During attach, we won't have the executable module, so find it now. - const DWORD pid = debugger->GetProcess().GetProcessId(); - const std::string file_name = GetProcessExecutableName(pid); - if (file_name.empty()) { - return; - } - - FileSpec executable_file(file_name); - FileSystem::Instance().Resolve(executable_file); - ModuleSpec module_spec(executable_file); - Status error; - module = - GetTarget().GetOrCreateModule(module_spec, true /* notify */, &error); - if (!module) { - return; - } + ModuleSP module; + // During attach, we won't have the executable module, so find it now. + const DWORD pid = debugger->GetProcess().GetProcessId(); + const std::string file_name = GetProcessExecutableName(pid); + if (file_name.empty()) { + return; + } - GetTarget().SetExecutableModule(module, eLoadDependentsNo); + FileSpec executable_file(file_name); + FileSystem::Instance().Resolve(executable_file); + ModuleSpec module_spec(executable_file); + Status error; + module = + GetTarget().GetOrCreateModule(module_spec, true /* notify */, &error); + if (!module) { + return; } + GetTarget().SetExecutableModule(module, eLoadDependentsNo); + if (auto dyld = GetDynamicLoader()) dyld->OnLoadModule(module, ModuleSpec(), image_base);
Index: lldb/test/Shell/Target/dependent-modules-nodupe-windows.test =================================================================== --- lldb/test/Shell/Target/dependent-modules-nodupe-windows.test +++ lldb/test/Shell/Target/dependent-modules-nodupe-windows.test @@ -18,5 +18,7 @@ # CHECK-LABEL: #after # CHECK-NEXT: target modules list # CHECK-NEXT: .main.exe -# CHECK-NEXT: .shlib.dll +# CHECK-NEXT: ntdll.dll +# CHECK-NEXT: kernel32.dll +# CHECK: .shlib.dll # CHECK-NOT: .shlib.dll Index: lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp =================================================================== --- lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp +++ lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp @@ -653,28 +653,26 @@ LLDB_LOG(log, "Debugger connected to process {0}. Image base = {1:x}", debugger->GetProcess().GetProcessId(), image_base); - ModuleSP module = GetTarget().GetExecutableModule(); - if (!module) { - // During attach, we won't have the executable module, so find it now. - const DWORD pid = debugger->GetProcess().GetProcessId(); - const std::string file_name = GetProcessExecutableName(pid); - if (file_name.empty()) { - return; - } - - FileSpec executable_file(file_name); - FileSystem::Instance().Resolve(executable_file); - ModuleSpec module_spec(executable_file); - Status error; - module = - GetTarget().GetOrCreateModule(module_spec, true /* notify */, &error); - if (!module) { - return; - } + ModuleSP module; + // During attach, we won't have the executable module, so find it now. + const DWORD pid = debugger->GetProcess().GetProcessId(); + const std::string file_name = GetProcessExecutableName(pid); + if (file_name.empty()) { + return; + } - GetTarget().SetExecutableModule(module, eLoadDependentsNo); + FileSpec executable_file(file_name); + FileSystem::Instance().Resolve(executable_file); + ModuleSpec module_spec(executable_file); + Status error; + module = + GetTarget().GetOrCreateModule(module_spec, true /* notify */, &error); + if (!module) { + return; } + GetTarget().SetExecutableModule(module, eLoadDependentsNo); + if (auto dyld = GetDynamicLoader()) dyld->OnLoadModule(module, ModuleSpec(), image_base);
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