diff options
Diffstat (limited to 'lldb')
4 files changed, 230 insertions, 0 deletions
diff --git a/lldb/lldb.xcodeproj/project.pbxproj b/lldb/lldb.xcodeproj/project.pbxproj index e9c4f3c2dfa..81c89950998 100644 --- a/lldb/lldb.xcodeproj/project.pbxproj +++ b/lldb/lldb.xcodeproj/project.pbxproj @@ -522,6 +522,8 @@ 941BCC8014E48C4000BB969C /* SBTypeFormat.h in Headers */ = {isa = PBXBuildFile; fileRef = 9461568714E355F2003A195C /* SBTypeFormat.h */; settings = {ATTRIBUTES = (Public, ); }; }; 941BCC8114E48C4000BB969C /* SBTypeSummary.h in Headers */ = {isa = PBXBuildFile; fileRef = 9461568814E355F2003A195C /* SBTypeSummary.h */; settings = {ATTRIBUTES = (Public, ); }; }; 941BCC8214E48C4000BB969C /* SBTypeSynthetic.h in Headers */ = {isa = PBXBuildFile; fileRef = 9461568914E355F2003A195C /* SBTypeSynthetic.h */; settings = {ATTRIBUTES = (Public, ); }; }; + 944372DC171F6B4300E57C32 /* RegisterContextDummy.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 944372DA171F6B4300E57C32 /* RegisterContextDummy.cpp */; }; + 944372DD171F6B4300E57C32 /* RegisterContextDummy.h in Headers */ = {isa = PBXBuildFile; fileRef = 944372DB171F6B4300E57C32 /* RegisterContextDummy.h */; }; 9443B122140C18C40013457C /* SBData.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 9443B121140C18C10013457C /* SBData.cpp */; }; 9443B123140C26AB0013457C /* SBData.h in Headers */ = {isa = PBXBuildFile; fileRef = 9443B120140C18A90013457C /* SBData.h */; settings = {ATTRIBUTES = (Public, ); }; }; 9452573A16262D0200325455 /* SBDeclaration.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 9452573916262D0200325455 /* SBDeclaration.cpp */; }; @@ -1557,6 +1559,8 @@ 940DB8E116EA674000D3C2F1 /* Xcode.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = Xcode.cpp; sourceTree = "<group>"; }; 940DB8E216EA674000D3C2F1 /* Xcode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Xcode.h; sourceTree = "<group>"; }; 940DB8E616EA709400D3C2F1 /* main.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = main.cpp; sourceTree = "<group>"; }; + 944372DA171F6B4300E57C32 /* RegisterContextDummy.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = RegisterContextDummy.cpp; path = Utility/RegisterContextDummy.cpp; sourceTree = "<group>"; }; + 944372DB171F6B4300E57C32 /* RegisterContextDummy.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = RegisterContextDummy.h; path = Utility/RegisterContextDummy.h; sourceTree = "<group>"; }; 9443B120140C18A90013457C /* SBData.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = SBData.h; path = include/lldb/API/SBData.h; sourceTree = "<group>"; }; 9443B121140C18C10013457C /* SBData.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SBData.cpp; path = source/API/SBData.cpp; sourceTree = "<group>"; }; 9452573616262CD000325455 /* SBDeclaration.i */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c.preprocessed; path = SBDeclaration.i; sourceTree = "<group>"; }; @@ -2511,6 +2515,8 @@ 26957D9513D381C900670048 /* RegisterContextDarwin_i386.h */, 26957D9613D381C900670048 /* RegisterContextDarwin_x86_64.cpp */, 26957D9713D381C900670048 /* RegisterContextDarwin_x86_64.h */, + 944372DA171F6B4300E57C32 /* RegisterContextDummy.cpp */, + 944372DB171F6B4300E57C32 /* RegisterContextDummy.h */, AF68D2541255416E002FF25B /* RegisterContextLLDB.cpp */, AF68D2551255416E002FF25B /* RegisterContextLLDB.h */, 262D24E413FB8710002D1960 /* RegisterContextMemory.cpp */, @@ -3599,6 +3605,7 @@ 260D9B2715EC369500960137 /* ModuleSpec.h in Headers */, 947A1D651616476B0017C8D1 /* CommandObjectPlugin.h in Headers */, 262ED0051631FA2800879631 /* OptionGroupString.h in Headers */, + 944372DD171F6B4300E57C32 /* RegisterContextDummy.h in Headers */, ); runOnlyForDeploymentPostprocessing = 0; }; @@ -4146,6 +4153,7 @@ 268900CB13353E5F00698AC0 /* LogChannelDWARF.cpp in Sources */, 268900CC13353E5F00698AC0 /* SymbolFileDWARFDebugMap.cpp in Sources */, 268900CD13353E5F00698AC0 /* UniqueDWARFASTType.cpp in Sources */, + 944372DC171F6B4300E57C32 /* RegisterContextDummy.cpp in Sources */, 268900CE13353E5F00698AC0 /* SymbolFileSymtab.cpp in Sources */, 268900CF13353E5F00698AC0 /* SymbolVendorMacOSX.cpp in Sources */, 268900D013353E6F00698AC0 /* Block.cpp in Sources */, diff --git a/lldb/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp b/lldb/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp index 6e2aadb7fde..a7aaedb9a0c 100644 --- a/lldb/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp +++ b/lldb/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp @@ -33,6 +33,7 @@ #include "lldb/Target/ThreadList.h" #include "lldb/Target/Thread.h" #include "Plugins/Process/Utility/DynamicRegisterInfo.h" +#include "Plugins/Process/Utility/RegisterContextDummy.h" #include "Plugins/Process/Utility/RegisterContextMemory.h" #include "Plugins/Process/Utility/ThreadMemory.h" @@ -333,6 +334,13 @@ OperatingSystemPython::CreateRegisterContextForThread (Thread *thread, addr_t re } } } + // if we still have no register data, fallback on a dummy context to avoid crashing + if (!reg_ctx_sp) + { + if (log) + log->Printf ("OperatingSystemPython::CreateRegisterContextForThread (tid = 0x%" PRIx64 ") forcing a dummy register context", thread->GetID()); + reg_ctx_sp.reset(new RegisterContextDummy(*thread,0,target.GetArchitecture().GetAddressByteSize())); + } return reg_ctx_sp; } diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextDummy.cpp b/lldb/source/Plugins/Process/Utility/RegisterContextDummy.cpp new file mode 100644 index 00000000000..1e282ce74f2 --- /dev/null +++ b/lldb/source/Plugins/Process/Utility/RegisterContextDummy.cpp @@ -0,0 +1,137 @@ +//===-- RegisterContextDummy.cpp ---------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + + +#include "lldb/lldb-private.h" +#include "lldb/Core/Address.h" +#include "lldb/Core/AddressRange.h" +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/Log.h" +#include "lldb/Core/Module.h" +#include "lldb/Core/RegisterValue.h" +#include "lldb/Core/Value.h" +#include "lldb/Expression/DWARFExpression.h" +#include "lldb/Symbol/FuncUnwinders.h" +#include "lldb/Symbol/Function.h" +#include "lldb/Symbol/ObjectFile.h" +#include "lldb/Symbol/SymbolContext.h" +#include "lldb/Symbol/Symbol.h" +#include "lldb/Target/ABI.h" +#include "lldb/Target/ExecutionContext.h" +#include "lldb/Target/Process.h" +#include "lldb/Target/StackFrame.h" +#include "lldb/Target/Target.h" +#include "lldb/Target/Thread.h" +#include "lldb/Target/DynamicLoader.h" + +#include "RegisterContextDummy.h" + +using namespace lldb; +using namespace lldb_private; + +RegisterContextDummy::RegisterContextDummy (Thread &thread, uint32_t concrete_frame_idx, uint32_t address_byte_size) : +RegisterContext (thread, concrete_frame_idx) +{ + m_reg_set0.name = "General Purpose Registers"; + m_reg_set0.short_name = "GPR"; + m_reg_set0.num_registers = 1; + m_reg_set0.registers = new uint32_t(0); + + m_pc_reg_info.name = "pc"; + m_pc_reg_info.alt_name = "pc"; + m_pc_reg_info.byte_offset = 0; + m_pc_reg_info.byte_size = address_byte_size; + m_pc_reg_info.encoding = eEncodingUint; + m_pc_reg_info.format = eFormatPointer; + m_pc_reg_info.invalidate_regs = NULL; + m_pc_reg_info.value_regs = NULL; + m_pc_reg_info.kinds[eRegisterKindGCC] = LLDB_INVALID_REGNUM; + m_pc_reg_info.kinds[eRegisterKindDWARF] = LLDB_INVALID_REGNUM; + m_pc_reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC; + m_pc_reg_info.kinds[eRegisterKindGDB] = LLDB_INVALID_REGNUM; + m_pc_reg_info.kinds[eRegisterKindLLDB] = LLDB_INVALID_REGNUM; +} + +RegisterContextDummy::~RegisterContextDummy () +{ + delete m_reg_set0.registers; + delete m_pc_reg_info.invalidate_regs; + delete m_pc_reg_info.value_regs; +} + +void +RegisterContextDummy::InvalidateAllRegisters () {} + +size_t +RegisterContextDummy::GetRegisterCount () +{ + return 1; +} + +const lldb_private::RegisterInfo * +RegisterContextDummy::GetRegisterInfoAtIndex (size_t reg) +{ + if (reg) + return NULL; + return &m_pc_reg_info; +} + +size_t +RegisterContextDummy::GetRegisterSetCount () +{ + return 1; +} + +const lldb_private::RegisterSet * +RegisterContextDummy::GetRegisterSet (size_t reg_set) +{ + if (reg_set) + return NULL; + return &m_reg_set0; +} + +bool +RegisterContextDummy::ReadRegister (const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value) +{ + if (!reg_info) + return false; + uint32_t reg_number = reg_info->kinds[eRegisterKindGeneric]; + if (reg_number == LLDB_REGNUM_GENERIC_PC) + { + value.SetUInt(LLDB_INVALID_ADDRESS, reg_info->byte_size); + return true; + } + return false; +} + +bool +RegisterContextDummy::WriteRegister (const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value) +{ + return false; +} + +bool +RegisterContextDummy::ReadAllRegisterValues (lldb::DataBufferSP &data_sp) +{ + return false; +} + +bool +RegisterContextDummy::WriteAllRegisterValues (const lldb::DataBufferSP &data_sp) +{ + return false; +} + +uint32_t +RegisterContextDummy::ConvertRegisterKindToRegisterNumber (uint32_t kind, uint32_t num) +{ + if (kind == eRegisterKindGeneric && num == LLDB_REGNUM_GENERIC_PC) + return 0; + return LLDB_INVALID_REGNUM; +} diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextDummy.h b/lldb/source/Plugins/Process/Utility/RegisterContextDummy.h new file mode 100644 index 00000000000..ee8d5a134bb --- /dev/null +++ b/lldb/source/Plugins/Process/Utility/RegisterContextDummy.h @@ -0,0 +1,77 @@ +//===-- RegisterContextDummy.h ----------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef lldb_RegisterContextDummy_h_ +#define lldb_RegisterContextDummy_h_ + +#include <vector> + +#include "lldb/lldb-private.h" +#include "lldb/Target/RegisterContext.h" +#include "lldb/Symbol/SymbolContext.h" + +namespace lldb_private { + +class RegisterContextDummy : public lldb_private::RegisterContext +{ +public: + typedef std::shared_ptr<RegisterContextDummy> SharedPtr; + + RegisterContextDummy (Thread &thread, uint32_t concrete_frame_idx, uint32_t address_byte_size); + + /// + // pure virtual functions from the base class that we must implement + /// + + virtual + ~RegisterContextDummy (); + + virtual void + InvalidateAllRegisters (); + + virtual size_t + GetRegisterCount (); + + virtual const lldb_private::RegisterInfo * + GetRegisterInfoAtIndex (size_t reg); + + virtual size_t + GetRegisterSetCount (); + + virtual const lldb_private::RegisterSet * + GetRegisterSet (size_t reg_set); + + virtual bool + ReadRegister (const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value); + + virtual bool + WriteRegister (const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value); + + virtual bool + ReadAllRegisterValues (lldb::DataBufferSP &data_sp); + + virtual bool + WriteAllRegisterValues (const lldb::DataBufferSP &data_sp); + + virtual uint32_t + ConvertRegisterKindToRegisterNumber (uint32_t kind, uint32_t num); + +private: + //------------------------------------------------------------------ + // For RegisterContextLLDB only + //------------------------------------------------------------------ + + lldb_private::RegisterSet m_reg_set0; // register set 0 (PC only) + lldb_private::RegisterInfo m_pc_reg_info; + + DISALLOW_COPY_AND_ASSIGN (RegisterContextDummy); +}; +} // namespace lldb_private + +#endif // lldb_RegisterContextDummy_h_ |
