74e08ca05c
PDB is Microsoft's debug information format, and although we cannot yet generate it, we still must be able to consume it. Reason for this is that debug information for system libraries (e.g. kernel32, C Runtime Library, etc) only have debug info in PDB format, so in order to be able to support debugging of system code, we must support it. Currently this code should compile on every platform, but on non-Windows platforms the PDB plugin will return 0 capabilities, meaning that for now PDB is only supported on Windows. This may change in the future, but the API is designed in such a way that this will require few (if any) changes on the LLDB side. In the future we can just flip a switch and everything will work. This patch only adds support for line tables. It does not return information about functions, types, global variables, or anything else. This functionality will be added in a followup patch. Differential Revision: http://reviews.llvm.org/D17363 Reviewed by: Greg Clayton llvm-svn: 262528
135 lines
3.3 KiB
C++
135 lines
3.3 KiB
C++
//===-- HostInfoWindows.cpp -------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Host/windows/windows.h"
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#include <objbase.h>
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#include <mutex> // std::once
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#include "lldb/Host/windows/HostInfoWindows.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Support/Path.h"
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using namespace lldb_private;
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FileSpec HostInfoWindows::m_program_filespec;
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void
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HostInfoWindows::Initialize()
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{
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::CoInitializeEx(nullptr, COINIT_MULTITHREADED);
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HostInfoBase::Initialize();
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}
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void
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HostInfoWindows::Terminate()
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{
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HostInfoBase::Terminate();
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::CoUninitialize();
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}
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size_t
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HostInfoWindows::GetPageSize()
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{
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SYSTEM_INFO systemInfo;
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GetNativeSystemInfo(&systemInfo);
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return systemInfo.dwPageSize;
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}
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bool
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HostInfoWindows::GetOSVersion(uint32_t &major, uint32_t &minor, uint32_t &update)
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{
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OSVERSIONINFOEX info;
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ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
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info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
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#pragma warning(push)
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#pragma warning(disable : 4996)
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// Starting with Microsoft SDK for Windows 8.1, this function is deprecated in favor of the
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// new Windows Version Helper APIs. Since we don't specify a minimum SDK version, it's easier
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// to simply disable the warning rather than try to support both APIs.
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if (GetVersionEx((LPOSVERSIONINFO)&info) == 0)
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{
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return false;
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}
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#pragma warning(pop)
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major = info.dwMajorVersion;
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minor = info.dwMinorVersion;
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update = info.wServicePackMajor;
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return true;
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}
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bool
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HostInfoWindows::GetOSBuildString(std::string &s)
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{
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s.clear();
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uint32_t major, minor, update;
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if (!GetOSVersion(major, minor, update))
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return false;
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llvm::raw_string_ostream stream(s);
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stream << "Windows NT " << major << "." << minor << "." << update;
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return true;
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}
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bool
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HostInfoWindows::GetOSKernelDescription(std::string &s)
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{
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return GetOSBuildString(s);
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}
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bool
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HostInfoWindows::GetHostname(std::string &s)
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{
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char buffer[MAX_COMPUTERNAME_LENGTH + 1];
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DWORD dwSize = MAX_COMPUTERNAME_LENGTH + 1;
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if (!::GetComputerName(buffer, &dwSize))
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return false;
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s.assign(buffer, buffer + dwSize);
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return true;
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}
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FileSpec
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HostInfoWindows::GetProgramFileSpec()
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{
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static std::once_flag g_once_flag;
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std::call_once(g_once_flag, []() {
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char buffer[PATH_MAX];
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::GetModuleFileName(NULL, buffer, sizeof(buffer));
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m_program_filespec.SetFile(buffer, false);
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});
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return m_program_filespec;
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}
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FileSpec
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HostInfoWindows::GetDefaultShell()
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{
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return FileSpec(::getenv("ComSpec"), false);
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}
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bool
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HostInfoWindows::ComputePythonDirectory(FileSpec &file_spec)
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{
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FileSpec lldb_file_spec;
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if (!GetLLDBPath(lldb::ePathTypeLLDBShlibDir, lldb_file_spec))
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return false;
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llvm::SmallString<64> path(lldb_file_spec.GetDirectory().AsCString());
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llvm::sys::path::remove_filename(path);
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llvm::sys::path::append(path, "lib", "site-packages");
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std::replace(path.begin(), path.end(), '\\', '/');
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file_spec.GetDirectory().SetString(path.c_str());
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return true;
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}
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