331 changes: 331 additions & 0 deletions lldb/source/Plugins/Platform/Kalimba/PlatformKalimba.cpp
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//===-- PlatformKalimba.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-python.h"

#include "PlatformKalimba.h"
#include "lldb/Host/Config.h"

// C Includes
#include <stdio.h>
#ifndef LLDB_DISABLE_POSIX
#include <sys/utsname.h>
#endif

// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/Error.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleList.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Host/FileSpec.h"
#include "lldb/Host/Host.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Process.h"

using namespace lldb;
using namespace lldb_private;

static uint32_t g_initialize_count = 0;

Platform *
PlatformKalimba::CreateInstance (bool force, const ArchSpec *arch)
{
bool create = force;
if (create == false && arch && arch->IsValid())
{
const llvm::Triple &triple = arch->GetTriple();
switch (triple.getVendor())
{
case llvm::Triple::CSR:
create = true;
break;

default:
break;
}
}
if (create)
return new PlatformKalimba(false);
return NULL;
}

lldb_private::ConstString
PlatformKalimba::GetPluginNameStatic (bool /*is_host*/)
{
static ConstString g_remote_name("kalimba");
return g_remote_name;
}

const char *
PlatformKalimba::GetPluginDescriptionStatic (bool /*is_host*/)
{
return "Kalimba user platform plug-in.";
}

lldb_private::ConstString
PlatformKalimba::GetPluginName()
{
return GetPluginNameStatic(false);
}

void
PlatformKalimba::Initialize ()
{
if (g_initialize_count++ == 0)
{
PluginManager::RegisterPlugin(PlatformKalimba::GetPluginNameStatic(false),
PlatformKalimba::GetPluginDescriptionStatic(false),
PlatformKalimba::CreateInstance);
}
}

void
PlatformKalimba::Terminate ()
{
if (g_initialize_count > 0)
{
if (--g_initialize_count == 0)
{
PluginManager::UnregisterPlugin (PlatformKalimba::CreateInstance);
}
}
}

Error
PlatformKalimba::ResolveExecutable (const FileSpec &exe_file,
const ArchSpec &exe_arch,
lldb::ModuleSP &exe_module_sp,
const FileSpecList *module_search_paths_ptr)
{
Error error;
char exe_path[PATH_MAX];
FileSpec resolved_exe_file (exe_file);

if (!resolved_exe_file.Exists())
{
exe_file.GetPath(exe_path, sizeof(exe_path));
error.SetErrorStringWithFormat("unable to find executable for '%s'", exe_path);
}

if (error.Success())
{
ModuleSpec module_spec (resolved_exe_file, exe_arch);
if (exe_arch.IsValid())
{
error = ModuleList::GetSharedModule (module_spec,
exe_module_sp,
NULL,
NULL,
NULL);
if (error.Fail())
{
// If we failed, it may be because the vendor and os aren't known. If that is the
// case, try setting them to the host architecture and give it another try.
llvm::Triple &module_triple = module_spec.GetArchitecture().GetTriple();
bool is_vendor_specified = (module_triple.getVendor() != llvm::Triple::UnknownVendor);
bool is_os_specified = (module_triple.getOS() != llvm::Triple::UnknownOS);
if (!is_vendor_specified || !is_os_specified)
{
const llvm::Triple &host_triple = Host::GetArchitecture (Host::eSystemDefaultArchitecture).GetTriple();

if (!is_vendor_specified)
module_triple.setVendorName (host_triple.getVendorName());
if (!is_os_specified)
module_triple.setOSName (host_triple.getOSName());

error = ModuleList::GetSharedModule (module_spec,
exe_module_sp,
NULL,
NULL,
NULL);
}
}

// TODO find out why exe_module_sp might be NULL
if (!exe_module_sp || exe_module_sp->GetObjectFile() == NULL)
{
exe_module_sp.reset();
error.SetErrorStringWithFormat ("'%s' doesn't contain the architecture %s",
exe_file.GetPath().c_str(),
exe_arch.GetArchitectureName());
}
}
else
{
// No valid architecture was specified, ask the platform for
// the architectures that we should be using (in the correct order)
// and see if we can find a match that way
StreamString arch_names;
for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, module_spec.GetArchitecture()); ++idx)
{
error = ModuleList::GetSharedModule (module_spec,
exe_module_sp,
NULL,
NULL,
NULL);
// Did we find an executable using one of the
if (error.Success())
{
if (exe_module_sp && exe_module_sp->GetObjectFile())
break;
else
error.SetErrorToGenericError();
}

if (idx > 0)
arch_names.PutCString (", ");
arch_names.PutCString (module_spec.GetArchitecture().GetArchitectureName());
}

if (error.Fail() || !exe_module_sp)
{
error.SetErrorStringWithFormat ("'%s' doesn't contain any '%s' platform architectures: %s",
exe_file.GetPath().c_str(),
GetPluginName().GetCString(),
arch_names.GetString().c_str());
}
}
}

return error;
}

Error
PlatformKalimba::GetFileWithUUID (const FileSpec &/*platform_file*/,
const UUID */*uuid_ptr*/, FileSpec &/*local_file*/)
{
return Error();
}


//------------------------------------------------------------------
/// Default Constructor
//------------------------------------------------------------------
PlatformKalimba::PlatformKalimba (bool is_host) :
Platform(is_host), // This is the local host platform
m_remote_platform_sp ()
{
}

//------------------------------------------------------------------
/// Destructor.
///
/// The destructor is virtual since this class is designed to be
/// inherited from by the plug-in instance.
//------------------------------------------------------------------
PlatformKalimba::~PlatformKalimba()
{
}

bool
PlatformKalimba::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info)
{
bool success = false;
if (IsHost())
{
success = false;
}
else
{
if (m_remote_platform_sp)
success = m_remote_platform_sp->GetProcessInfo (pid, process_info);
}
return success;
}

bool
PlatformKalimba::GetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch)
{
if (idx == 0)
{
arch = ArchSpec("kalimba-csr-unknown");
return true;
}
return false;
}

void
PlatformKalimba::GetStatus (Stream &strm)
{
Platform::GetStatus(strm);
}

size_t
PlatformKalimba::GetSoftwareBreakpointTrapOpcode (Target &/*target*/,
BreakpointSite */*bp_site*/)
{
// the target hardware does not support software breakpoints
return 0;
}

Error
PlatformKalimba::LaunchProcess (ProcessLaunchInfo &launch_info)
{
Error error;

if (IsHost())
{
error.SetErrorString ("native execution is not possible");
}
else
{
error.SetErrorString ("the platform is not currently connected");
}
return error;
}

lldb::ProcessSP
PlatformKalimba::Attach(ProcessAttachInfo &attach_info,
Debugger &debugger,
Target *target,
Listener &listener,
Error &error)
{
lldb::ProcessSP process_sp;
if (IsHost())
{
error.SetErrorString ("native execution is not possible");
}
else
{
if (m_remote_platform_sp)
process_sp = m_remote_platform_sp->Attach (attach_info, debugger, target, listener, error);
else
error.SetErrorString ("the platform is not currently connected");
}
return process_sp;
}

void
PlatformKalimba::CalculateTrapHandlerSymbolNames ()
{
}

Error
PlatformKalimba::LaunchNativeProcess (
ProcessLaunchInfo &,
lldb_private::NativeProcessProtocol::NativeDelegate &,
NativeProcessProtocolSP &)
{
return Error();
}

Error
PlatformKalimba::AttachNativeProcess (lldb::pid_t,
lldb_private::NativeProcessProtocol::NativeDelegate &,
NativeProcessProtocolSP &)
{
return Error();
}

125 changes: 125 additions & 0 deletions lldb/source/Plugins/Platform/Kalimba/PlatformKalimba.h
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@@ -0,0 +1,125 @@
//===-- PlatformKalimba.h -----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef liblldb_PlatformKalimba_h_
#define liblldb_PlatformKalimba_h_

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Target/Platform.h"

namespace lldb_private {

class PlatformKalimba : public Platform
{
public:

static void
Initialize ();

static void
Terminate ();

PlatformKalimba (bool is_host);

virtual
~PlatformKalimba();

//------------------------------------------------------------
// lldb_private::PluginInterface functions
//------------------------------------------------------------
static Platform *
CreateInstance (bool force, const lldb_private::ArchSpec *arch);

static lldb_private::ConstString
GetPluginNameStatic (bool is_host);

static const char *
GetPluginDescriptionStatic (bool is_host);

virtual lldb_private::ConstString
GetPluginName();

virtual uint32_t
GetPluginVersion()
{
return 1;
}

//------------------------------------------------------------
// lldb_private::Platform functions
//------------------------------------------------------------
virtual Error
ResolveExecutable (const FileSpec &exe_file,
const ArchSpec &arch,
lldb::ModuleSP &module_sp,
const FileSpecList *module_search_paths_ptr);

virtual const char *
GetDescription ()
{
return GetPluginDescriptionStatic(IsHost());
}

virtual void
GetStatus (Stream &strm);

virtual Error
GetFileWithUUID (const FileSpec &platform_file,
const UUID* uuid, FileSpec &local_file);

virtual bool
GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &proc_info);

virtual bool
GetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch);

virtual size_t
GetSoftwareBreakpointTrapOpcode (Target &target,
BreakpointSite *bp_site);

virtual lldb_private::Error
LaunchProcess (lldb_private::ProcessLaunchInfo &launch_info);

virtual lldb::ProcessSP
Attach(ProcessAttachInfo &attach_info, Debugger &debugger,
Target *target, Listener &listener, Error &error);

// Kalimba processes can not be launched by spawning and attaching.
virtual bool
CanDebugProcess ()
{
return false;
}

virtual void
CalculateTrapHandlerSymbolNames ();

Error
LaunchNativeProcess (
ProcessLaunchInfo &launch_info,
lldb_private::NativeProcessProtocol::NativeDelegate &native_delegate,
NativeProcessProtocolSP &process_sp) override;

Error
AttachNativeProcess (lldb::pid_t pid,
lldb_private::NativeProcessProtocol::NativeDelegate &native_delegate,
NativeProcessProtocolSP &process_sp) override;

protected:
lldb::PlatformSP m_remote_platform_sp;

private:
DISALLOW_COPY_AND_ASSIGN (PlatformKalimba);
};
} // namespace lldb_private

#endif // liblldb_PlatformKalimba_h_
2 changes: 1 addition & 1 deletion lldb/source/Plugins/Platform/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ LLDB_LEVEL := ../../..

include $(LLDB_LEVEL)/../../Makefile.config

DIRS := gdb-server MacOSX Linux FreeBSD POSIX Windows
DIRS := gdb-server MacOSX Linux FreeBSD POSIX Windows Kalimba

# ifeq ($(HOST_OS),Darwin)
# DIRS += MacOSX
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3 changes: 3 additions & 0 deletions lldb/source/lldb.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@
#include "Plugins/Platform/Linux/PlatformLinux.h"
#include "Plugins/Platform/POSIX/PlatformPOSIX.h"
#include "Plugins/Platform/Windows/PlatformWindows.h"
#include "Plugins/Platform/Kalimba/PlatformKalimba.h"
#include "Plugins/Process/elf-core/ProcessElfCore.h"
#include "Plugins/SymbolVendor/MacOSX/SymbolVendorMacOSX.h"
#include "Plugins/SymbolVendor/ELF/SymbolVendorELF.h"
Expand Down Expand Up @@ -123,6 +124,7 @@ lldb_private::Initialize ()
PlatformFreeBSD::Initialize();
PlatformLinux::Initialize();
PlatformWindows::Initialize();
PlatformKalimba::Initialize();
SymbolFileDWARFDebugMap::Initialize();
ItaniumABILanguageRuntime::Initialize();
#ifndef LLDB_DISABLE_PYTHON
Expand Down Expand Up @@ -210,6 +212,7 @@ lldb_private::Terminate ()
PlatformFreeBSD::Terminate();
PlatformLinux::Terminate();
PlatformWindows::Terminate();
PlatformKalimba::Terminate();
SymbolFileDWARFDebugMap::Terminate();
ItaniumABILanguageRuntime::Terminate();
#ifndef LLDB_DISABLE_PYTHON
Expand Down