llvm-project/lldb/source/API/SBSymbol.cpp

//===-- SBSymbol.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/API/SBSymbol.h"
#include "lldb/API/SBStream.h"
#include "lldb/Core/Disassembler.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Module.h"
#include "lldb/Symbol/Symbol.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Target.h"

using namespace lldb;
using namespace lldb_private;

SBSymbol::SBSymbol () :
    m_opaque_ptr (NULL)
{
}

SBSymbol::SBSymbol (lldb_private::Symbol *lldb_object_ptr) :
    m_opaque_ptr (lldb_object_ptr)
{
}

SBSymbol::SBSymbol (const lldb::SBSymbol &rhs) :
    m_opaque_ptr (rhs.m_opaque_ptr)
{
}

const SBSymbol &
SBSymbol::operator = (const SBSymbol &rhs)
{
    m_opaque_ptr = rhs.m_opaque_ptr;
    return *this;
}

SBSymbol::~SBSymbol ()
{
    m_opaque_ptr = NULL;
}

void
SBSymbol::SetSymbol (lldb_private::Symbol *lldb_object_ptr)
{
    m_opaque_ptr = lldb_object_ptr;
}

bool
SBSymbol::IsValid () const
{
    return m_opaque_ptr != NULL;
}

const char *
SBSymbol::GetName() const
{
    const char *name = NULL;
    if (m_opaque_ptr)
        name = m_opaque_ptr->GetName().AsCString();

    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
    if (log)
        log->Printf ("SBSymbol(%p)::GetName () => \"%s\"",
                     static_cast<void*>(m_opaque_ptr), name ? name : "");
    return name;
}

const char *
SBSymbol::GetDisplayName() const
{
    const char *name = NULL;
    if (m_opaque_ptr)
        name = m_opaque_ptr->GetMangled().GetDisplayDemangledName(m_opaque_ptr->GetLanguage()).AsCString();
    
    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
    if (log)
    log->Printf ("SBSymbol(%p)::GetDisplayName () => \"%s\"",
                 static_cast<void*>(m_opaque_ptr), name ? name : "");
    return name;
}

const char *
SBSymbol::GetMangledName () const
{
    const char *name = NULL;
    if (m_opaque_ptr)
        name = m_opaque_ptr->GetMangled().GetMangledName().AsCString();
    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
    if (log)
        log->Printf ("SBSymbol(%p)::GetMangledName () => \"%s\"",
                     static_cast<void*>(m_opaque_ptr), name ? name : "");

    return name;
}


bool
SBSymbol::operator == (const SBSymbol &rhs) const
{
    return m_opaque_ptr == rhs.m_opaque_ptr;
}

bool
SBSymbol::operator != (const SBSymbol &rhs) const
{
    return m_opaque_ptr != rhs.m_opaque_ptr;
}

bool
SBSymbol::GetDescription (SBStream &description)
{
    Stream &strm = description.ref();

    if (m_opaque_ptr)
    {
        m_opaque_ptr->GetDescription (&strm,
                                      lldb::eDescriptionLevelFull, NULL);
    }
    else
        strm.PutCString ("No value");
    
    return true;
}

SBInstructionList
SBSymbol::GetInstructions (SBTarget target)
{
    return GetInstructions (target, NULL);
}

SBInstructionList
SBSymbol::GetInstructions (SBTarget target, const char *flavor_string)
{
    SBInstructionList sb_instructions;
    if (m_opaque_ptr)
    {
        ExecutionContext exe_ctx;
        TargetSP target_sp (target.GetSP());
        std::unique_lock<std::recursive_mutex> lock;
        if (target_sp)
        {
            lock = std::unique_lock<std::recursive_mutex>(target_sp->GetAPIMutex());

            target_sp->CalculateExecutionContext (exe_ctx);
        }
        if (m_opaque_ptr->ValueIsAddress())
        {
            const Address &symbol_addr = m_opaque_ptr->GetAddressRef();
            ModuleSP module_sp = symbol_addr.GetModule();
            if (module_sp)
            {
                AddressRange symbol_range (symbol_addr, m_opaque_ptr->GetByteSize());
                const bool prefer_file_cache = false;
                sb_instructions.SetDisassembler (Disassembler::DisassembleRange (module_sp->GetArchitecture (),
                                                                                 NULL,
                                                                                 flavor_string,
                                                                                 exe_ctx,
                                                                                 symbol_range,
                                                                                 prefer_file_cache));
            }
        }
    }
    return sb_instructions;
}

lldb_private::Symbol *
SBSymbol::get ()
{
    return m_opaque_ptr;
}

void
SBSymbol::reset (lldb_private::Symbol *symbol)
{
    m_opaque_ptr = symbol;
}

SBAddress
SBSymbol::GetStartAddress ()
{
    SBAddress addr;
    if (m_opaque_ptr && m_opaque_ptr->ValueIsAddress())
    {
        addr.SetAddress (&m_opaque_ptr->GetAddressRef());
    }
    return addr;
}

SBAddress
SBSymbol::GetEndAddress ()
{
    SBAddress addr;
    if (m_opaque_ptr && m_opaque_ptr->ValueIsAddress())
    {
        lldb::addr_t range_size = m_opaque_ptr->GetByteSize();
        if (range_size > 0)
        {
            addr.SetAddress (&m_opaque_ptr->GetAddressRef());
            addr->Slide (m_opaque_ptr->GetByteSize());
        }
    }
    return addr;
}

uint32_t
SBSymbol::GetPrologueByteSize ()
{
    if (m_opaque_ptr)
        return m_opaque_ptr->GetPrologueByteSize();
    return 0;
}

SymbolType
SBSymbol::GetType ()
{
    if (m_opaque_ptr)
        return m_opaque_ptr->GetType();
    return eSymbolTypeInvalid;
}

bool
SBSymbol::IsExternal()
{
    if (m_opaque_ptr)
        return m_opaque_ptr->IsExternal();
    return false;
}

bool
SBSymbol::IsSynthetic()
{
    if (m_opaque_ptr)
        return m_opaque_ptr->IsSynthetic();
    return false;
}