Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

1 files changed, 118 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/source/Plugins/Process/minidump/ThreadMinidump.cpp b/gnu/llvm/lldb/source/Plugins/Process/minidump/ThreadMinidump.cpp
new file mode 100644
index 00000000000..5262de5a94c
--- /dev/null
+++ b/gnu/llvm/lldb/source/Plugins/Process/minidump/ThreadMinidump.cpp
@@ -0,0 +1,118 @@
+//===-- ThreadMinidump.cpp --------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "ThreadMinidump.h"
+
+#include "ProcessMinidump.h"
+
+#include "RegisterContextMinidump_ARM.h"
+#include "RegisterContextMinidump_ARM64.h"
+#include "RegisterContextMinidump_x86_32.h"
+#include "RegisterContextMinidump_x86_64.h"
+
+#include "Plugins/Process/Utility/RegisterContextLinux_i386.h"
+#include "Plugins/Process/Utility/RegisterContextLinux_x86_64.h"
+#include "Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.h"
+#include "Plugins/Process/elf-core/RegisterUtilities.h"
+
+#include "lldb/Target/RegisterContext.h"
+#include "lldb/Target/StopInfo.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/Unwind.h"
+#include "lldb/Utility/DataExtractor.h"
+#include "lldb/Utility/Log.h"
+
+#include <memory>
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace minidump;
+
+ThreadMinidump::ThreadMinidump(Process &process, const minidump::Thread &td,
+                               llvm::ArrayRef<uint8_t> gpregset_data)
+    : Thread(process, td.ThreadId), m_thread_reg_ctx_sp(),
+      m_gpregset_data(gpregset_data) {}
+
+ThreadMinidump::~ThreadMinidump() {}
+
+void ThreadMinidump::RefreshStateAfterStop() {}
+
+RegisterContextSP ThreadMinidump::GetRegisterContext() {
+  if (!m_reg_context_sp) {
+    m_reg_context_sp = CreateRegisterContextForFrame(nullptr);
+  }
+  return m_reg_context_sp;
+}
+
+RegisterContextSP
+ThreadMinidump::CreateRegisterContextForFrame(StackFrame *frame) {
+  RegisterContextSP reg_ctx_sp;
+  uint32_t concrete_frame_idx = 0;
+
+  if (frame)
+    concrete_frame_idx = frame->GetConcreteFrameIndex();
+
+  if (concrete_frame_idx == 0) {
+    if (m_thread_reg_ctx_sp)
+      return m_thread_reg_ctx_sp;
+
+    ProcessMinidump *process =
+        static_cast<ProcessMinidump *>(GetProcess().get());
+    ArchSpec arch = process->GetArchitecture();
+    RegisterInfoInterface *reg_interface = nullptr;
+
+    // TODO write other register contexts and add them here
+    switch (arch.GetMachine()) {
+    case llvm::Triple::x86: {
+      reg_interface = new RegisterContextLinux_i386(arch);
+      lldb::DataBufferSP buf =
+          ConvertMinidumpContext_x86_32(m_gpregset_data, reg_interface);
+      DataExtractor gpregset(buf, lldb::eByteOrderLittle, 4);
+      m_thread_reg_ctx_sp = std::make_shared<RegisterContextCorePOSIX_x86_64>(
+          *this, reg_interface, gpregset,
+          llvm::ArrayRef<lldb_private::CoreNote>());
+      break;
+    }
+    case llvm::Triple::x86_64: {
+      reg_interface = new RegisterContextLinux_x86_64(arch);
+      lldb::DataBufferSP buf =
+          ConvertMinidumpContext_x86_64(m_gpregset_data, reg_interface);
+      DataExtractor gpregset(buf, lldb::eByteOrderLittle, 8);
+      m_thread_reg_ctx_sp = std::make_shared<RegisterContextCorePOSIX_x86_64>(
+          *this, reg_interface, gpregset,
+          llvm::ArrayRef<lldb_private::CoreNote>());
+      break;
+    }
+    case llvm::Triple::aarch64: {
+      DataExtractor data(m_gpregset_data.data(), m_gpregset_data.size(),
+                         lldb::eByteOrderLittle, 8);
+      m_thread_reg_ctx_sp =
+          std::make_shared<RegisterContextMinidump_ARM64>(*this, data);
+      break;
+    }
+    case llvm::Triple::arm: {
+      DataExtractor data(m_gpregset_data.data(), m_gpregset_data.size(),
+                         lldb::eByteOrderLittle, 8);
+      const bool apple = arch.GetTriple().getVendor() == llvm::Triple::Apple;
+      m_thread_reg_ctx_sp =
+          std::make_shared<RegisterContextMinidump_ARM>(*this, data, apple);
+      break;
+    }
+    default:
+      break;
+    }
+
+    reg_ctx_sp = m_thread_reg_ctx_sp;
+  } else if (m_unwinder_up) {
+    reg_ctx_sp = m_unwinder_up->CreateRegisterContextForFrame(frame);
+  }
+
+  return reg_ctx_sp;
+}
+
+bool ThreadMinidump::CalculateStopInfo() { return false; }