159 lines · cpp
1//===-- PlatformAIX.cpp -------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "PlatformAIX.h"10#include "lldb/Host/Config.h"11#include <cstdio>12#if LLDB_ENABLE_POSIX13#include <sys/utsname.h>14#endif15#include "Utility/ARM64_DWARF_Registers.h"16#include "lldb/Core/Debugger.h"17#include "lldb/Core/PluginManager.h"18#include "lldb/Host/HostInfo.h"19#include "lldb/Symbol/UnwindPlan.h"20#include "lldb/Target/Process.h"21#include "lldb/Target/Target.h"22#include "lldb/Utility/FileSpec.h"23#include "lldb/Utility/LLDBLog.h"24#include "lldb/Utility/Log.h"25#include "lldb/Utility/State.h"26#include "lldb/Utility/Status.h"27#include "lldb/Utility/StreamString.h"28 29// Use defined constants from AIX mman.h for use when targeting remote aix30// systems even when host has different values.31 32// For remotely cross debugging aix33constexpr int MapVariable = 0x0;34constexpr int MapPrivate = 0x2;35constexpr int MapAnonymous = 0x10;36#if defined(_AIX)37#include <sys/mman.h>38static_assert(MapVariable == MAP_VARIABLE);39static_assert(MapPrivate == MAP_PRIVATE);40static_assert(MapAnonymous == MAP_ANONYMOUS);41#endif42 43using namespace lldb;44using namespace lldb_private;45using namespace lldb_private::platform_aix;46 47LLDB_PLUGIN_DEFINE(PlatformAIX)48 49static uint32_t g_initialize_count = 0;50 51PlatformSP PlatformAIX::CreateInstance(bool force, const ArchSpec *arch) {52 Log *log = GetLog(LLDBLog::Platform);53 LLDB_LOG(log, "force = {0}, arch=({1}, {2})", force,54 arch ? arch->GetArchitectureName() : "<null>",55 arch ? arch->GetTriple().getTriple() : "<null>");56 57 bool create = force || (arch && arch->IsValid() &&58 arch->GetTriple().getOS() == llvm::Triple::AIX);59 LLDB_LOG(log, "create = {0}", create);60 if (create) {61 return PlatformSP(new PlatformAIX(false));62 }63 return PlatformSP();64}65 66llvm::StringRef PlatformAIX::GetPluginDescriptionStatic(bool is_host) {67 if (is_host)68 return "Local AIX user platform plug-in.";69 return "Remote AIX user platform plug-in.";70}71 72void PlatformAIX::Initialize() {73 PlatformPOSIX::Initialize();74 75 if (g_initialize_count++ == 0) {76#ifdef _AIX77 PlatformSP default_platform_sp(new PlatformAIX(true));78 default_platform_sp->SetSystemArchitecture(HostInfo::GetArchitecture());79 Platform::SetHostPlatform(default_platform_sp);80#endif81 PluginManager::RegisterPlugin(82 PlatformAIX::GetPluginNameStatic(false),83 PlatformAIX::GetPluginDescriptionStatic(false),84 PlatformAIX::CreateInstance, nullptr);85 }86}87 88void PlatformAIX::Terminate() {89 if (g_initialize_count > 0)90 if (--g_initialize_count == 0)91 PluginManager::UnregisterPlugin(PlatformAIX::CreateInstance);92 93 PlatformPOSIX::Terminate();94}95 96PlatformAIX::PlatformAIX(bool is_host) : PlatformPOSIX(is_host) {97 if (is_host) {98 ArchSpec hostArch = HostInfo::GetArchitecture(HostInfo::eArchKindDefault);99 m_supported_architectures.push_back(hostArch);100 } else {101 m_supported_architectures =102 CreateArchList({llvm::Triple::ppc64}, llvm::Triple::AIX);103 }104}105 106std::vector<ArchSpec>107PlatformAIX::GetSupportedArchitectures(const ArchSpec &process_host_arch) {108 if (m_remote_platform_sp)109 return m_remote_platform_sp->GetSupportedArchitectures(process_host_arch);110 return m_supported_architectures;111}112 113void PlatformAIX::GetStatus(Stream &strm) {114 Platform::GetStatus(strm);115 116#if LLDB_ENABLE_POSIX117 // Display local kernel information only when we are running in host mode.118 // Otherwise, we would end up printing non-AIX information (when running on119 // Mac OS for example).120 if (IsHost()) {121 struct utsname un;122 123 if (uname(&un))124 return;125 126 strm.Printf(" Kernel: %s\n", un.sysname);127 strm.Printf(" Release: %s\n", un.release);128 strm.Printf(" Version: %s\n", un.version);129 }130#endif131}132 133void PlatformAIX::CalculateTrapHandlerSymbolNames() {}134 135lldb::UnwindPlanSP136PlatformAIX::GetTrapHandlerUnwindPlan(const llvm::Triple &triple,137 ConstString name) {138 return {};139}140 141MmapArgList PlatformAIX::GetMmapArgumentList(const ArchSpec &arch, addr_t addr,142 addr_t length, unsigned prot,143 unsigned flags, addr_t fd,144 addr_t offset) {145 unsigned flags_platform = MapVariable;146 147 if (flags & eMmapFlagsPrivate)148 flags_platform |= MapPrivate;149 if (flags & eMmapFlagsAnon)150 flags_platform |= MapAnonymous;151 152 MmapArgList args({addr, length, prot, flags_platform, fd, offset});153 return args;154}155 156CompilerType PlatformAIX::GetSiginfoType(const llvm::Triple &triple) {157 return CompilerType();158}159