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aa51e6a683
Summary: This creates an abstract base class called "UserIDResolver", which can be implemented to provide user/group ID resolution capabilities for various objects. Posix host implement a PosixUserIDResolver, which does that using posix apis (getpwuid and friends). PlatformGDBRemote forwards queries over the gdb-remote link, etc. ProcessInstanceInfo class is refactored to make use of this interface instead of taking a platform pointer as an argument. The base resolver class already implements caching and thread-safety, so implementations don't have to worry about that. The main motivating factor for this was to remove external dependencies from the ProcessInstanceInfo class (so it can be put next to ProcessLaunchInfo and friends), but it has other benefits too: - ability to test the user name caching code - ability to test ProcessInstanceInfo dumping code - consistent interface for user/group resolution between Platform and Host classes. Reviewers: zturner, clayborg, jingham Subscribers: mgorny, lldb-commits Differential Revision: https://reviews.llvm.org/D58167 llvm-svn: 355323
285 lines
10 KiB
C++
285 lines
10 KiB
C++
//===-- RemoteAwarePlatform.cpp ---------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Target/RemoteAwarePlatform.h"
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#include "lldb/Host/FileCache.h"
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Host/Host.h"
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#include "lldb/Host/HostInfo.h"
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using namespace lldb_private;
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bool RemoteAwarePlatform::GetModuleSpec(const FileSpec &module_file_spec,
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const ArchSpec &arch,
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ModuleSpec &module_spec) {
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetModuleSpec(module_file_spec, arch,
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module_spec);
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return Platform::GetModuleSpec(module_file_spec, arch, module_spec);
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}
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Status RemoteAwarePlatform::RunShellCommand(
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const char *command, const FileSpec &working_dir, int *status_ptr,
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int *signo_ptr, std::string *command_output,
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const Timeout<std::micro> &timeout) {
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if (IsHost())
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return Host::RunShellCommand(command, working_dir, status_ptr, signo_ptr,
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command_output, timeout);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->RunShellCommand(
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command, working_dir, status_ptr, signo_ptr, command_output, timeout);
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return Status("unable to run a remote command without a platform");
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}
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Status RemoteAwarePlatform::MakeDirectory(const FileSpec &file_spec,
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uint32_t file_permissions) {
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if (m_remote_platform_sp)
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return m_remote_platform_sp->MakeDirectory(file_spec, file_permissions);
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return Platform::MakeDirectory(file_spec, file_permissions);
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}
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Status RemoteAwarePlatform::GetFilePermissions(const FileSpec &file_spec,
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uint32_t &file_permissions) {
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetFilePermissions(file_spec,
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file_permissions);
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return Platform::GetFilePermissions(file_spec, file_permissions);
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}
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Status RemoteAwarePlatform::SetFilePermissions(const FileSpec &file_spec,
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uint32_t file_permissions) {
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if (m_remote_platform_sp)
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return m_remote_platform_sp->SetFilePermissions(file_spec,
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file_permissions);
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return Platform::SetFilePermissions(file_spec, file_permissions);
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}
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lldb::user_id_t RemoteAwarePlatform::OpenFile(const FileSpec &file_spec,
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uint32_t flags, uint32_t mode,
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Status &error) {
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if (IsHost())
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return FileCache::GetInstance().OpenFile(file_spec, flags, mode, error);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->OpenFile(file_spec, flags, mode, error);
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return Platform::OpenFile(file_spec, flags, mode, error);
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}
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bool RemoteAwarePlatform::CloseFile(lldb::user_id_t fd, Status &error) {
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if (IsHost())
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return FileCache::GetInstance().CloseFile(fd, error);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->CloseFile(fd, error);
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return Platform::CloseFile(fd, error);
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}
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uint64_t RemoteAwarePlatform::ReadFile(lldb::user_id_t fd, uint64_t offset,
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void *dst, uint64_t dst_len,
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Status &error) {
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if (IsHost())
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return FileCache::GetInstance().ReadFile(fd, offset, dst, dst_len, error);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->ReadFile(fd, offset, dst, dst_len, error);
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return Platform::ReadFile(fd, offset, dst, dst_len, error);
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}
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uint64_t RemoteAwarePlatform::WriteFile(lldb::user_id_t fd, uint64_t offset,
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const void *src, uint64_t src_len,
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Status &error) {
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if (IsHost())
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return FileCache::GetInstance().WriteFile(fd, offset, src, src_len, error);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->WriteFile(fd, offset, src, src_len, error);
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return Platform::WriteFile(fd, offset, src, src_len, error);
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}
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lldb::user_id_t RemoteAwarePlatform::GetFileSize(const FileSpec &file_spec) {
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if (IsHost()) {
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uint64_t Size;
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if (llvm::sys::fs::file_size(file_spec.GetPath(), Size))
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return 0;
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return Size;
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}
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetFileSize(file_spec);
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return Platform::GetFileSize(file_spec);
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}
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Status RemoteAwarePlatform::CreateSymlink(const FileSpec &src,
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const FileSpec &dst) {
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if (IsHost())
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return FileSystem::Instance().Symlink(src, dst);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->CreateSymlink(src, dst);
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return Platform::CreateSymlink(src, dst);
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}
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bool RemoteAwarePlatform::GetFileExists(const FileSpec &file_spec) {
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if (IsHost())
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return FileSystem::Instance().Exists(file_spec);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetFileExists(file_spec);
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return Platform::GetFileExists(file_spec);
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}
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Status RemoteAwarePlatform::Unlink(const FileSpec &file_spec) {
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if (IsHost())
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return llvm::sys::fs::remove(file_spec.GetPath());
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if (m_remote_platform_sp)
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return m_remote_platform_sp->Unlink(file_spec);
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return Platform::Unlink(file_spec);
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}
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bool RemoteAwarePlatform::CalculateMD5(const FileSpec &file_spec, uint64_t &low,
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uint64_t &high) {
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if (IsHost())
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return Platform::CalculateMD5(file_spec, low, high);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->CalculateMD5(file_spec, low, high);
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return false;
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}
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FileSpec RemoteAwarePlatform::GetRemoteWorkingDirectory() {
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if (IsRemote() && m_remote_platform_sp)
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return m_remote_platform_sp->GetRemoteWorkingDirectory();
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return Platform::GetRemoteWorkingDirectory();
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}
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bool RemoteAwarePlatform::SetRemoteWorkingDirectory(
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const FileSpec &working_dir) {
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if (IsRemote() && m_remote_platform_sp)
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return m_remote_platform_sp->SetRemoteWorkingDirectory(working_dir);
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return Platform::SetRemoteWorkingDirectory(working_dir);
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}
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Status RemoteAwarePlatform::GetFileWithUUID(const FileSpec &platform_file,
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const UUID *uuid_ptr,
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FileSpec &local_file) {
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if (IsRemote() && m_remote_platform_sp)
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return m_remote_platform_sp->GetFileWithUUID(platform_file, uuid_ptr,
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local_file);
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// Default to the local case
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local_file = platform_file;
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return Status();
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}
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bool RemoteAwarePlatform::GetRemoteOSVersion() {
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if (m_remote_platform_sp) {
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m_os_version = m_remote_platform_sp->GetOSVersion();
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return !m_os_version.empty();
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}
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return false;
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}
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bool RemoteAwarePlatform::GetRemoteOSBuildString(std::string &s) {
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetRemoteOSBuildString(s);
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s.clear();
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return false;
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}
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bool RemoteAwarePlatform::GetRemoteOSKernelDescription(std::string &s) {
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetRemoteOSKernelDescription(s);
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s.clear();
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return false;
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}
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ArchSpec RemoteAwarePlatform::GetRemoteSystemArchitecture() {
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetRemoteSystemArchitecture();
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return ArchSpec();
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}
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const char *RemoteAwarePlatform::GetHostname() {
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if (IsHost())
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return Platform::GetHostname();
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetHostname();
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return nullptr;
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}
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UserIDResolver &RemoteAwarePlatform::GetUserIDResolver() {
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if (IsHost())
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return HostInfo::GetUserIDResolver();
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetUserIDResolver();
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return UserIDResolver::GetNoopResolver();
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}
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Environment RemoteAwarePlatform::GetEnvironment() {
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if (IsRemote()) {
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetEnvironment();
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return Environment();
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}
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return Host::GetEnvironment();
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}
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bool RemoteAwarePlatform::IsConnected() const {
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if (IsHost())
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return true;
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else if (m_remote_platform_sp)
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return m_remote_platform_sp->IsConnected();
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return false;
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}
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bool RemoteAwarePlatform::GetProcessInfo(lldb::pid_t pid,
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ProcessInstanceInfo &process_info) {
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if (IsHost())
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return Platform::GetProcessInfo(pid, process_info);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->GetProcessInfo(pid, process_info);
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return false;
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}
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uint32_t
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RemoteAwarePlatform::FindProcesses(const ProcessInstanceInfoMatch &match_info,
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ProcessInstanceInfoList &process_infos) {
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if (IsHost())
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return Platform::FindProcesses(match_info, process_infos);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->FindProcesses(match_info, process_infos);
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return 0;
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}
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lldb::ProcessSP RemoteAwarePlatform::ConnectProcess(llvm::StringRef connect_url,
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llvm::StringRef plugin_name,
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Debugger &debugger,
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Target *target,
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Status &error) {
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if (m_remote_platform_sp)
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return m_remote_platform_sp->ConnectProcess(connect_url, plugin_name,
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debugger, target, error);
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return Platform::ConnectProcess(connect_url, plugin_name, debugger, target,
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error);
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}
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Status RemoteAwarePlatform::LaunchProcess(ProcessLaunchInfo &launch_info) {
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Status error;
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if (IsHost()) {
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error = Platform::LaunchProcess(launch_info);
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} else {
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if (m_remote_platform_sp)
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error = m_remote_platform_sp->LaunchProcess(launch_info);
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else
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error.SetErrorString("the platform is not currently connected");
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}
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return error;
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}
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Status RemoteAwarePlatform::KillProcess(const lldb::pid_t pid) {
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if (IsHost())
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return Platform::KillProcess(pid);
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if (m_remote_platform_sp)
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return m_remote_platform_sp->KillProcess(pid);
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return Status("the platform is not currently connected");
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}
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