IDiaSectionContrib

Artigo
11/15/2016

Note

This article applies to Visual Studio 2015. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here

Retrieves data describing a section contribution, that is, a contiguous block of memory contributed to the image by a compiland.

Syntax

IDiaSectionContrib : IUnknown

Methods in Vtable Order

The following table shows the methods of IDiaSectionContrib.

Method	Description
IDiaSectionContrib::get_compiland	Retrieves a reference to the compiland symbol that contributed this section.
IDiaSectionContrib::get_addressSection	Retrieves the section part of the contribution's address.
IDiaSectionContrib::get_addressOffset	Retrieves the offset part of the contribution's address.
IDiaSectionContrib::get_relativeVirtualAddress	Retrieves the image relative virtual address (RVA) of the contribution.
IDiaSectionContrib::get_virtualAddress	Retrieves the virtual address (VA) of the contribution.
IDiaSectionContrib::get_length	Retrieves the number of bytes in a section.
IDiaSectionContrib::get_notPaged	Retrieves a flag that indicates whether the section cannot be paged out of memory.
IDiaSectionContrib::get_nopad	Retrieves a flag indicating whether the section should not be padded to the next memory boundary.
IDiaSectionContrib::get_code	Retrieves a flag that indicates whether the section contains executable code.
IDiaSectionContrib::get_code16bit	Retrieves a flag that indicates whether the section contains 16-bit code.
IDiaSectionContrib::get_initializedData	Retrieves a flag that indicates whether the section contains initialized data.
IDiaSectionContrib::get_uninitializedData	Retrieves a flag that indicates whether the section contains uninitialized data.
IDiaSectionContrib::get_informational	Retrieves a flag indicating whether a section contains comments or similar information.
IDiaSectionContrib::get_remove	Retrieves a flag that indicates whether the section is removed before it is made part of the in-memory image.
IDiaSectionContrib::get_comdat	Retrieves a flag that indicates whether the section is a COMDAT record.
IDiaSectionContrib::get_discardable	Retrieves a flag that indicates whether the section can be discarded.
IDiaSectionContrib::get_notCached	Retrieves a flag that indicates whether the section cannot be cached.
IDiaSectionContrib::get_share	Retrieves a flag that indicates whether the section can be shared in memory.
IDiaSectionContrib::get_execute	Retrieves a flag that indicates whether the section is executable as code.
IDiaSectionContrib::get_read	Retrieves a flag that indicates whether the section can be read.
IDiaSectionContrib::get_write	Retrieves a flag that indicates whether the section can be written.
IDiaSectionContrib::get_dataCrc	Retrieves the cyclic redundancy check (CRC) of the data in the section.
IDiaSectionContrib::get_relocationsCrc	Retrieves the CRC of the relocation information for the section.
IDiaLineNumber::get_compilandId	Retrieves the compiland identifier for the section.

Remarks

Notes for Callers

This interface is obtained by calling the IDiaEnumSectionContribs::Item and IDiaEnumSectionContribs::Next methods. See the IDiaEnumSectionContribs interface for an example of obtaining the IDiaSectionContrib interface.

Example

This function shows the address of each section along with any associated symbols. See the IDiaEnumSectionContribs interface to see how the IDiaSectionContrib interface is obtained.

void PrintSectionContrib(IDiaSectionContrib* pSecContrib, IDiaSession* pSession)  
{  
    if (pSecContrib != NULL && pSession != NULL)  
    {  
        DWORD rva;  
        if ( pSecContrib->get_relativeVirtualAddress( &rva ) == S_OK )  
        {  
            printf( "\taddr: 0x%.8X", rva );  
            pSecContrib = NULL;  
            CComPtr<IDiaSymbol> pSym;  
            if ( psession->findSymbolByRVA( rva, SymTagNull, &pSym ) == S_OK )  
            {  
                CDiaBSTR name;  
                DWORD    tag;  
                pSym->get_symTag( &tag );  
                pSym->get_name( &name );  
                printf( "     symbol: %ws (%ws)\n",  
                        name != NULL ? name : L"",  
                        szTags[ tag ] );  
            }  
            else  
            {  
                printf( "<no symbol found?>\n" );  
            }  
        }  
        else  
        {  
            DWORD isect;  
            DWORD offset;  
            pSecContrib->get_addressSection( &isect );  
            pSecContrib->get_addressOffset( &offset );  
            printf( "\taddr: 0x%.4X:0x%.8X", isect, offset );  
            pSecContrib = NULL;  
            CComPtr<IDiaSymbol> pSym;  
            if ( SUCCEEDED( psession->findSymbolByAddr(  
                                              isect,  
                                              offset,  
                                              SymTagNull,  
                                              &pSym )  
                          )  
               )  
            {  
                CDiaBSTR name;  
                DWORD    tag;  
                pSym->get_symTag( &tag );  
                pSym->get_name( &name );  
                printf( "     symbol: %ws (%ws)\n",  
                    name != NULL ? name : L"",  
                    szTags[ tag ] );  
            }  
            else  
            {  
                printf( "<no symbol found?>\n" );  
            }  
        }  
    }  
}

Requirements

Header: Dia2.h

Library: diaguids.lib

DLL: msdia80.dll

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