Exemple #1
0
void PrintPublics( void ) {
    int                 loop;
    label_entry         entry;
    hash_data *         data_ptr;
    section_ptr         sec;

    // fixme:  data labels get a _ in front, others one after ??
    BufferMsg( LIST_OF_PUBLICS );
    BufferMsg( SYMBOL );
    BufferConcat("\t\t\t");
    BufferMsg( SECTION );
    BufferConcat("\t\t\t");
    BufferMsg( OFFSET );
    BufferConcatNL();
    BufferPrint();
    Print( "--------------------------------------------------------\n" );
    for( loop = 0; loop < Publics.number; loop++ ) {
        entry = Publics.public_symbols[loop];
        BufferConcat( entry->label.name );
        data_ptr = HashTableQuery( HandleToSectionTable, (hash_value) entry->shnd );
        // fixme: what is the proper behavour if no section found??
        if( data_ptr ) {
            sec = (section_ptr) *data_ptr;
            BufferAlignToTab( SECTION_TAB_POS );
            BufferConcat( sec->name );
        }
        BufferAlignToTab( ADDRESS_TAB_POS );
        BufferStore( "%08X\n", entry->offset );
        BufferPrint();
    }
}
Exemple #2
0
static size_t tryDUP( unsigned_8 *bytes, size_t i, size_t size )
{
    size_t      d;
    size_t      dup;
    dis_value   value;


    if( i >= ( size - ( 8 * MIN_DUP_LINES ) ) )
        return( 0 );

    for( d = i + 8; d < ( size - 8 ); d += 8 ) {
        if( memcmp( &bytes[i], &bytes[d], 8 ) ) {
            return( 0 );
        }
    }

    d -= i;
    dup = d / 8;
    if( dup < MIN_DUP_LINES )
        return( 0 );

    BufferStore( "0%XH DUP(", dup );

    value.u._32[I64HI32] = 0;
    for( dup = 0; dup < 7; dup++ ) {
        value.u._32[I64LO32] = bytes[i + dup];
        BufferHex( 2, value );
        BufferConcat( "," );
    }
    value.u._32[I64LO32] = bytes[i + 7];
    BufferHex( 2, value );
    BufferConcat( ")" );
    return( d );
}
Exemple #3
0
static void printOut( const char *string, size_t offset, size_t size )
{
    const char          *string_left;
    size_t              item_size;
    bool                ascii;

    /* unused parameters */ (void)offset;

    ascii = !IsMasmOutput();
    item_size = 0;
    string_left = string;
    for( ; string_left < ( string + size ); ) {
        if( !ascii || !printableString( string_left ) || strlen( string_left ) == 0 ) {
            printRest( (unsigned_8 *)string_left, size - (size_t)( string_left - string ) );
            break;
        }
        if( strlen( string_left ) < ( size - item_size ) ) {
            BufferConcat( "    .asciiz\t" );
            item_size = printString( string_left, ASCIZ );
        } else {
            BufferConcat( "    .ascii\t" );
            item_size = printString( string_left, ASCII );
        }
        string_left += item_size;
        BufferConcatNL();
        BufferPrint();
    }
}
static size_t tryDUP( unsigned_8 *bytes, size_t i, size_t size )
{
    size_t      d;
    size_t      dup;


    if( i >= ( size - ( 8 * MIN_DUP_LINES ) ) )
        return( 0 );

    for( d = i + 8; d < ( size - 8 ); d += 8 ) {
        if( memcmp( &bytes[i], &bytes[d], 8 ) ) {
            return( 0 );
        }
    }

    d -= i;
    dup = d / 8;
    if( dup < MIN_DUP_LINES )
        return( 0 );

    BufferStore( "0%XH DUP(", dup );

    for( dup = 0; dup < 7; dup++ ) {
        BufferHex( 2, bytes[i + dup] );
        BufferConcat( "," );
    }
    BufferHex( 2, bytes[i + 7] );
    BufferConcat( ")" );
    return( d );
}
static void printOut( char *string, size_t offset, size_t size )
{
    char *              string_left = string;
    size_t              curr_pos = 0;
    int                 ascii;

    offset = offset;

    ascii = !IsMasmOutput();
    for( ;; ) {
        if( string_left < ( string + size ) ) {
            if( ascii && printableString( string_left ) && strlen( string_left ) > 0 ) {
                if( strlen( string_left ) < ( size - curr_pos ) ) {
                    BufferConcat( "    .asciiz\t" );
                    curr_pos = printString( string_left, ASCIZ );
                } else {
                    BufferConcat( "    .ascii\t" );
                    curr_pos = printString( string_left, ASCII );
                }
                string_left += curr_pos;
            } else {
                printRest( (unsigned_8 *)string_left, size - (size_t)( string_left - string ) );
                break;
            }
        } else {
            break;
        }
        BufferConcatNL();
        BufferPrint();
    }
}
Exemple #6
0
unsigned HandleRefInData( ref_entry r_entry, void *data, bool asmLabels )
{
    unsigned            rv;
    const char          * const *types;
    char                buff[MAX_SYM_LEN];      // fixme: should be TS_MAX_OBJNAME or something
    dis_value           value;

    if( IsMasmOutput() ) {
        types = masmTypes;
    } else {
        types = unixTypes;
    }
    rv = RelocSize( r_entry );
    value.u._32[I64HI32] = 0;
    switch( rv ) {
    case 6:
        value.u._32[I64LO32] = *(unsigned_32 *)data;
        break;
    case 4:
        value.u._32[I64LO32] = *(unsigned_32 *)data;
        break;
    case 2:
        value.u._32[I64LO32] = *(unsigned_16 *)data;
        break;
    case 1:
        value.u._32[I64LO32] = *(unsigned_8 *)data;
        break;
    case 8:
        value.u._32[I64LO32] = 0;
        break;
    default:
        value.u._32[I64LO32] = 0;
        break;
    }
    if( asmLabels && types[rv] != NULL ) {
        BufferConcat( types[rv] );
    }
    HandleAReference( value, 0, RFLAG_DEFAULT | RFLAG_IS_IMMED, r_entry->offset, r_entry->offset + rv, &r_entry, buff );
    BufferConcat( buff );
    switch( rv ) {
    case 8:
        value.u._32[I64LO32] = *(unsigned_32 *)data;
        value.u._32[I64HI32] = *((unsigned_32 *)data + 1);
        if( value.u._32[I64LO32] != 0 || value.u._32[I64HI32] != 0 ) {
            BufferConcat( "+" );
            if( value.u._32[I64HI32] != 0 ) {
                BufferStore( "0x%x", value.u._32[I64HI32] );
                BufferStore( "%08x", value.u._32[I64LO32] );
            } else {
                BufferStore( "0x%x", value.u._32[I64LO32] );
            }
        }
        break;
    }
    return( rv );
}
Exemple #7
0
static void printRest( unsigned_8 *bytes, size_t size )
{
    size_t      i;
    size_t      d;
    const char  *btype;
    bool        is_masm;
    dis_value   value;

    is_masm = IsMasmOutput();
    if( is_masm ) {
        btype = "    DB\t";
    } else {
        btype = "    .byte\t";
    }
    BufferConcat( btype );
    value.u._32[I64HI32] = 0;
    for( i = 0; i < size; ) {
        // see if we can replace large chunks of homogenous
        // segment space by using the DUP macro
        if( is_masm && (i % 8) == 0 ) {
            d = tryDUP( bytes, i, size );
            if( d > 0 ) {
                i += d;
                if( i < size ) {
                    BufferConcatNL();
                    BufferConcat( btype );
                    BufferPrint();
                }
                continue;
            }
        }

        value.u._32[I64LO32] = bytes[i];
        BufferHex( 2, value );
        if( i < size - 1 ) {
            if( (i % 8) == 7 ) {
                BufferConcatNL();
                BufferConcat( btype );
                BufferPrint();
            } else {
                BufferConcat( ", " );
            }
        }
        i++;
    }
    BufferConcatNL();
    BufferPrint();
}
Exemple #8
0
void PrintExterns( externs sec_externs )
{
    int                 loop;
    ref_entry           entry;
    label_entry         prev_label = NULL;

    BufferMsg( EXTERNAL_REFS );
    BufferConcatNL();
    BufferConcatNL();
    BufferMsg( SYMBOL );
    BufferConcatNL();
    BufferConcat( "-------" );
    BufferPrint();
    for( loop = 0; loop < sec_externs->number; loop++ ) {
        entry = sec_externs->extern_refs[loop];
        if( prev_label != entry->label ) {
            BufferStore( "\n%s", entry->label->label.name );
            BufferAlignToTab( ADDRESSES_POS );
            BufferPrint();
            prev_label = entry->label;
        }
        BufferStore( "%04X ", entry->offset );
    }
    BufferPrint();
    Print( "\n\n" );
}
Exemple #9
0
static label_entry handleLabels( char *sec_name, orl_sec_offset offset, orl_sec_offset end,
                             label_entry l_entry, orl_sec_size size )
// handle any labels at this offset and skip all unused non-label symbols
{
    bool    is32bit;

    is32bit = ( size >= 0x10000 );
    for( ; ( l_entry != NULL ) && ( l_entry->offset < end ); l_entry = l_entry->next ) {
        switch( l_entry->type ) {
        case LTYP_SECTION:
        case LTYP_NAMED:
            if( strcmp( l_entry->label.name, sec_name ) == 0 )
                continue;
            /* fall through */
        case LTYP_UNNAMED:
            if( l_entry->offset > offset )
                return( l_entry );
            break;
        case LTYP_ABSOLUTE:
        case LTYP_FUNC_INFO:
        default:
            continue;
        }
        switch( l_entry->type ) {
        case LTYP_NAMED:
            if( !( DFormat & DFF_ASM ) ) {
                if( offset != 0 && l_entry->binding == ORL_SYM_BINDING_GLOBAL ) {
                    routineSize = offset - routineBase;
                    BufferConcatNL();
                    BufferMsg( ROUTINE_SIZE );
                    BufferStore(" %d ", routineSize );
                    BufferMsg( BYTES );
                    BufferConcat(",    ");
                    BufferMsg( ROUTINE_BASE );
                    BufferStore(" %s + %04X\n\n", sec_name, routineBase );
                    routineBase = offset;
                }
            }
        case LTYP_SECTION:
            if( !( DFormat & DFF_ASM ) ) {
                PrintLinePrefixAddress( offset, is32bit );
                BufferAlignToTab( PREFIX_SIZE_TABS );
            }
            BufferStore( "%s:\n", l_entry->label.name );
            break;
        case LTYP_UNNAMED:
            if( !( DFormat & DFF_ASM ) ) {
                PrintLinePrefixAddress( offset, is32bit );
                BufferAlignToTab( PREFIX_SIZE_TABS );
            }
            BufferStore( "%c$%d:\n", LabelChar, l_entry->label.number );
            break;
        }
        BufferPrint();
    }
    return( l_entry );
}
Exemple #10
0
static return_val bssMasmASMSection( section_ptr section, dis_sec_size size, label_entry l_entry )
{
    size_t      offset = OFFSET_UNDEF;
    dis_value   value;

    PrintHeader( section );

    value.u._32[I64HI32] = 0;
    for( ; l_entry != NULL; l_entry = l_entry->next ) {
        if( l_entry->type != LTYP_SECTION ) {
            if( offset != l_entry->offset ) {
                BufferStore( "    ORG " );
                value.u._32[I64LO32] = l_entry->offset;
                BufferHex( 8, value );
                offset = l_entry->offset;
                BufferConcatNL();
                BufferPrint();
            }

            switch( l_entry->type ) {
            case LTYP_UNNAMED:
                BufferStore( "%c$%d", LabelChar, l_entry->label.number );
                break;
            case LTYP_SECTION:
            case LTYP_NAMED:
                BufferStore( "%s", l_entry->label.name );
                break;
            }

            BufferConcat( "    LABEL\tBYTE" );
            BufferConcatNL();
            BufferPrint();
        }
    }
    if( offset == OFFSET_UNDEF ) {
        if( size > 0 ) {
            BufferStore( "    ORG 0" );
            BufferConcatNL();
            BufferPrint();
        }
        offset = 0;
    }
    if( size > offset ) {
        BufferStore( "    ORG " );
        value.u._32[I64LO32] = size;
        BufferHex( 8, value );
        BufferConcatNL();
        BufferPrint();
    }

    PrintTail( section );

    BufferConcatNL();
    BufferPrint();

    return( RC_OKAY );
}
Exemple #11
0
return_val      DumpASMGroupMember( char *name )
{
    assert( name );

    if( useComma ) {
        BufferConcat( "," );
    }
    BufferQuoteName( name );
    useComma = 1;
    return( RC_OKAY );
}
Exemple #12
0
static void printMasmHeader( section_ptr sec )
{
    orl_sec_alignment   alignment;
    orl_sec_flags       flags;
    orl_sec_type        type;
    orl_sec_frame       frame;
    orl_sec_combine     combine;
    orl_sec_size        size;
    char                *name;
    char                *class;
    char                *gname;
    char                *astr;
    orl_sec_handle      sh;
    orl_group_handle    grp = NULL;
    char                comname[ MAX_LINE_LEN ];

    size = ORLSecGetSize( sec->shnd );

    // Load all necessary information
    name = sec->name;
    if( !name ) {
        name = "";
    }
    type = ORLSecGetType( sec->shnd );
    flags = ORLSecGetFlags( sec->shnd );
    frame = ORLSecGetAbsFrame( sec->shnd );

    if( DFormat & DFF_ASM ) {
        class = ORLSecGetClassName( sec->shnd );
        if( !class ) {
            class = "";
        }
        if( flags & ORL_SEC_FLAG_COMDAT ) {
            BufferConcat( "; ERROR: Comdat symbols cannot be assembled." );
        } else if( frame == ORL_SEC_NO_ABS_FRAME ) {
            alignment = ORLSecGetAlignment( sec->shnd );
            combine = ORLSecGetCombine( sec->shnd );
            BufferQuoteName( name );
            BufferStore( "\t\tSEGMENT\t%s %s %s '%s'",
                         getAlignment( alignment ), getCombine( combine ),
                         getUse( flags ), class );
        } else {
static return_val bssUnixASMSection( section_ptr sec, orl_sec_size size,
                                     label_entry l_entry )
{
    orl_sec_offset              dsiz = 0;
    char                        *prefix;
    label_entry                 prev_entry;

    if( ( size == 0 ) && ( l_entry == NULL ) )
        return( RC_OKAY );

    PrintHeader( sec );
    prev_entry = NULL;
    for( ; l_entry != NULL; l_entry = l_entry->next ) {
        if( ( l_entry->type == LTYP_SECTION ) && ( strcmp( l_entry->label.name, sec->name ) == 0 ) ) {
            continue;
        } else if( prev_entry == NULL ) {
            prev_entry = l_entry;
            continue;
        } else if( prev_entry->offset > l_entry->offset ) {
            continue;
        } else if( prev_entry->offset == l_entry->offset ) {
            dsiz = 0;
            prefix = "";
        } else {
            dsiz = l_entry->offset - prev_entry->offset;
            prefix = "    .lcomm\t";
        }
        switch( prev_entry->type ) {
        case LTYP_UNNAMED:
            BufferStore( "%s%c$%d", prefix, LabelChar, prev_entry->label.number );
            break;
        case LTYP_SECTION:
        case LTYP_NAMED:
            BufferStore( "%s%s", prefix, prev_entry->label.name );
            break;
        default:
            break;
        }
        if( dsiz ) {
            BufferStore( ", 0x%08x", dsiz );
        } else {
            BufferConcat( ":" );
        }
        BufferConcatNL();
        BufferPrint();
        prev_entry = l_entry;
    }
    if( prev_entry != NULL ) {
        if( prev_entry->offset < size ) {
            dsiz = size - prev_entry->offset;
            prefix = "    .lcomm\t";
        } else {
            dsiz = 0;
            prefix = "";
        }
        switch( prev_entry->type ) {
        case LTYP_UNNAMED:
            BufferStore( "%s%c$%d", prefix, LabelChar, prev_entry->label.number );
            break;
        case LTYP_SECTION:
        case LTYP_NAMED:
            BufferStore( "%s%s", prefix, prev_entry->label.name );
            break;
        default:
            break;
        }
        if( dsiz ) {
            BufferStore( ", 0x%08x", dsiz );
        } else {
            BufferConcat( ":" );
        }
        BufferConcatNL();
        BufferPrint();
    }
    BufferConcatNL();
    BufferPrint();

    return( RC_OKAY );
}
return_val DumpASMDataFromSection( unsigned_8 *contents, orl_sec_offset start,
                                   orl_sec_offset end, label_entry *labent,
                                   ref_entry *refent, section_ptr sec )
{
    size_t              curr_pos;
    size_t              curr_size;
    size_t              tmp_size;
    size_t              size;
    label_entry         l_entry;
    ref_entry           r_entry;
    char                *buffer;

    l_entry = *labent;
    r_entry = *refent;

    size = end - start;
    if( size < sizeof( unsigned_32 ) )
        size = sizeof( unsigned_32 );
    buffer = MemAlloc( size + 1 );
    if( !buffer ) {
        PrintErrorMsg( RC_OUT_OF_MEMORY, WHERE_PRINT_SECTION );
        return( RC_OUT_OF_MEMORY );
    }

    for( curr_pos = start; curr_pos < end; curr_pos += curr_size ) {

        /* dump labels
         */
        l_entry = dumpAsmLabel( l_entry, sec, curr_pos, end, contents, buffer );

        curr_size = end - curr_pos;
        if( l_entry != NULL ) {
            tmp_size = l_entry->offset - curr_pos;
            if( tmp_size < curr_size ) {
                curr_size = tmp_size;
            }
        }

        /* Skip over pair relocs */
        while( r_entry != NULL && (r_entry->type == ORL_RELOC_TYPE_PAIR || r_entry->offset < curr_pos) ) {
            r_entry = r_entry->next;
        }
        if( r_entry != NULL && r_entry->offset < (curr_pos + curr_size) ) {
            if( r_entry->offset == curr_pos ) {
                BufferConcat("    ");
                curr_size = HandleRefInData(r_entry, contents + curr_pos, TRUE);
                BufferConcatNL();
                BufferPrint();
                continue;
            } else {
                tmp_size = r_entry->offset - curr_pos;
                if( tmp_size < curr_size ) {
                    curr_size = tmp_size;
                }
            }
        }
        memcpy( buffer, (contents + curr_pos), curr_size );
        buffer[ curr_size ] = 0;
        printOut( buffer, curr_pos, curr_size );
    }

    *labent = l_entry;
    *refent = r_entry;
    MemFree( buffer );

    return( RC_OKAY );
}
Exemple #15
0
size_t HandleAReference( dis_value value, int ins_size, ref_flags flags,
                           orl_sec_offset offset, orl_sec_size sec_size,
                           ref_entry * r_entry, char *buff )
// handle any references at this offset
{
    return_val          error;
    dis_value           nvalue;
    char                *p;

    buff[0] = '\0';
    for( ; *r_entry && (*r_entry)->offset == offset; *r_entry = (*r_entry)->next ) {
        if( (*r_entry)->no_val == 0 ) {
            nvalue = value;
        } else if( (*r_entry)->addend ) {
            nvalue = HandleAddend( *r_entry );
        } else {
            nvalue = 0;
        }
        switch( (*r_entry)->type ) {
        case ORL_RELOC_TYPE_MAX + 1:
        case ORL_RELOC_TYPE_JUMP:
        case ORL_RELOC_TYPE_REL_21_SH:
        case ORL_RELOC_TYPE_WORD_26:
            error = referenceString( *r_entry, sec_size, "j^", "", "",
                                     buff, flags );
            if( error != RC_OKAY ) {
                // label is defined to be beyond the boundaries of the section!
                if( !(DFormat & DFF_ASM) ){
                    BufferStore("\t     %04X", offset );
                    BufferAlignToTab( COMMENT_TAB_POS );
                } else {
                    BufferConcat("\t" );
                }
                BufferConcat( CommentString );
                BufferMsg( LABEL_BEYOND_SECTION );
                BufferConcatNL();
                BufferPrint();
                *r_entry = (*r_entry)->next;
                return( 0 );
            }
            continue; // Don't print addend
            break;
        case ORL_RELOC_TYPE_SEC_REL:
            referenceString( *r_entry, sec_size, "s^", "s^", "@s", buff,
                             flags );
            break;
        case ORL_RELOC_TYPE_HALF_HI:
            referenceString( *r_entry, sec_size, "h^", "h^", "@h", buff,
                             flags );
            break;
        case ORL_RELOC_TYPE_HALF_HA:
            referenceString( *r_entry, sec_size, "ha^", "ha^", "@ha", buff,
                             flags );
            break;
        case ORL_RELOC_TYPE_HALF_LO:
            referenceString( *r_entry, sec_size, "l^", "l^", "@l", buff,
                             flags );
            break;
        case ORL_RELOC_TYPE_REL_14:
        case ORL_RELOC_TYPE_REL_24:
        case ORL_RELOC_TYPE_WORD_14:
        case ORL_RELOC_TYPE_WORD_24:
            nvalue &= ~0x3;
        case ORL_RELOC_TYPE_WORD_16:
        case ORL_RELOC_TYPE_WORD_32:
        case ORL_RELOC_TYPE_WORD_64:
            if( ( (*r_entry)->label->type != LTYP_GROUP ) &&
              ( flags & RFLAG_IS_IMMED ) && IsMasmOutput() ) {
                referenceString( *r_entry, sec_size, "offset ", "offset ",
                                 "", buff, flags );
            } else {
                referenceString( *r_entry, sec_size, "", "", "", buff,
                                 flags );
            }
            break;
        case ORL_RELOC_TYPE_REL_16:
            if( IsIntelx86() && !(*r_entry)->no_val ) {
                nvalue -= ins_size;
            }
            if( ( (*r_entry)->label->type != LTYP_GROUP ) &&
              ( flags & RFLAG_IS_IMMED ) && IsMasmOutput() ) {
                referenceString( *r_entry, sec_size, "offset ", "offset ",
                                 "", buff, flags );
            } else {
                referenceString( *r_entry, sec_size, "", "", "", buff,
                                 flags  );
            }
            break;
        case ORL_RELOC_TYPE_WORD_8:
        case ORL_RELOC_TYPE_WORD_16_SEG:
        case ORL_RELOC_TYPE_WORD_HI_8:
        case ORL_RELOC_TYPE_WORD_32_SEG:
            // Keep these seperate because they are OMF specific
            referenceString( *r_entry, sec_size, "", "", "", buff, flags );
            break;
        case ORL_RELOC_TYPE_SEGMENT:
            if( ( (*r_entry)->label->type != LTYP_GROUP )
                && ( (*r_entry)->label->type != LTYP_SECTION )
                && ( flags & RFLAG_IS_IMMED )
                && IsMasmOutput() ) {
                referenceString( *r_entry, sec_size, "seg ", "seg ", "",
                                 buff, flags );
            } else {
                referenceString( *r_entry, sec_size, "", "", "", buff,
                                 flags );
            }
            break;

        case ORL_RELOC_TYPE_REL_32_NOADJ:
            // this is a little kluge because Brian's ELF files seem to have
            // -4 in the implicit addend for calls and such BBB May 09, 1997
            nvalue += 4;
            // fall through
        case ORL_RELOC_TYPE_REL_8:
        case ORL_RELOC_TYPE_REL_16_SEG:
        case ORL_RELOC_TYPE_REL_HI_8:
        case ORL_RELOC_TYPE_REL_32_SEG:
        case ORL_RELOC_TYPE_REL_32:
        case ORL_RELOC_TYPE_REL_32_ADJ5:
        case ORL_RELOC_TYPE_REL_32_ADJ4:
        case ORL_RELOC_TYPE_REL_32_ADJ3:
        case ORL_RELOC_TYPE_REL_32_ADJ2:
        case ORL_RELOC_TYPE_REL_32_ADJ1:
            // For some reason we add the instruction size to the value
            // of the displacement in a relative call and get a bad
            // offset, due to CORE implementation
            //
            // Main reason :
            // instruction size with displacement and with addend is correct for
            // relative addresses without relocate
            //
            // in amd64 code the instruction size will be added in pass1.c!
            if( (*r_entry)->no_val == 0 && !( GetMachineType() == ORL_MACHINE_TYPE_AMD64 ) ) {
                nvalue -= ins_size;
            }
            referenceString( *r_entry, sec_size, "", "", "", buff, flags );
            break;
        case ORL_RELOC_TYPE_TOCREL_14:
            nvalue &= ~0x3;
        case ORL_RELOC_TYPE_TOCREL_16:
            referenceString( *r_entry, sec_size, "[toc]", "[toc]", "@toc",
                             buff, flags );
            break;
        case ORL_RELOC_TYPE_TOCVREL_14:
            nvalue &= ~0x3;
        case ORL_RELOC_TYPE_TOCVREL_16:
            referenceString( *r_entry, sec_size, "[tocv]", "[tocv]", "@tocv",
                             buff, flags );
            break;
        case ORL_RELOC_TYPE_GOT_16:
            referenceString( *r_entry, sec_size, "", "", "@got", buff, flags );
            break;
        case ORL_RELOC_TYPE_GOT_16_HI:
            referenceString( *r_entry, sec_size, "", "", "@got@h", buff, flags );
            break;
        case ORL_RELOC_TYPE_GOT_16_HA:
            referenceString( *r_entry, sec_size, "", "", "@got@ha", buff, flags );
            break;
        case ORL_RELOC_TYPE_GOT_16_LO:
            referenceString( *r_entry, sec_size, "", "", "@got@l", buff, flags );
            break;
        case ORL_RELOC_TYPE_PLTREL_24:
        case ORL_RELOC_TYPE_PLTREL_32:
        case ORL_RELOC_TYPE_PLT_32:
            referenceString( *r_entry, sec_size, "", "", "@plt", buff, flags );
            break;
        case ORL_RELOC_TYPE_PLT_16_HI:
            referenceString( *r_entry, sec_size, "", "", "@plt@h", buff, flags );
            break;
        case ORL_RELOC_TYPE_PLT_16_HA:
            referenceString( *r_entry, sec_size, "", "", "@plt@ha", buff, flags );
            break;
        case ORL_RELOC_TYPE_PLT_16_LO:
            referenceString( *r_entry, sec_size, "", "", "@plt@l", buff, flags );
            break;
        default:
            continue;
        }
        // LTYP_UNNAMED labels are always at the correct location
        // if( nvalue != 0 && (*r_entry)->label->type != LTYP_UNNAMED ) {
        // not so - BBB Oct 28, 1996
        if(( (*r_entry)->no_val == 0 ) && ( nvalue != 0 )) {
            p = &buff[strlen(buff)];
            if( nvalue < 0 ) {
                *p++ = '-';
                nvalue = -nvalue;
            } else {
                *p++ = '+';
            }
            FmtHexNum( p, 0, nvalue, FALSE );
        }
    }
    return( strlen( buff ) );
}
orl_sec_offset HandleRefInData( ref_entry r_entry, void *data, bool asmLabels )
{
    orl_sec_offset      rv;
    const char          * const *types;
    char                buff[MAX_SYM_LEN];      // fixme: should be TS_MAX_OBJNAME or something

    if( IsMasmOutput() ) {
        types = masmTypes;
    } else {
        types = unixTypes;
    }

    rv = RelocSize( r_entry );
    switch( rv ) {
    case 6:
        if( asmLabels && types[rv] ) {
            BufferConcat( types[rv] );
        }
        HandleAReference(*((unsigned_32 *)data), 0, RFLAG_DEFAULT | RFLAG_IS_IMMED, r_entry->offset,
                         r_entry->offset + rv, &r_entry, buff );
        BufferConcat( buff );
        break;
    case 4:
        if( asmLabels ) {
            BufferConcat( types[rv] );
        }
        HandleAReference(*((unsigned_32 *)data), 0, RFLAG_DEFAULT | RFLAG_IS_IMMED, r_entry->offset,
                         r_entry->offset + rv, &r_entry, buff );
        BufferConcat( buff );
        break;
    case 2:
        if( asmLabels ) {
            BufferConcat( types[rv] );
        }
        HandleAReference(*((unsigned_16 *)data), 0, RFLAG_DEFAULT | RFLAG_IS_IMMED, r_entry->offset,
                         r_entry->offset + rv, &r_entry, buff );
        BufferConcat( buff );
        break;
    case 1:
        if( asmLabels ) {
            BufferConcat( types[rv] );
        }
        HandleAReference(*((unsigned_8 *)data), 0, RFLAG_DEFAULT | RFLAG_IS_IMMED, r_entry->offset,
                         r_entry->offset + rv, &r_entry, buff );
        BufferConcat( buff );
        break;
    case 8:
        if( asmLabels ) {
            BufferConcat( types[rv] );
        }
        HandleAReference( 0, 0, RFLAG_DEFAULT | RFLAG_IS_IMMED, r_entry->offset,
                          r_entry->offset + rv, &r_entry, buff );
        BufferConcat( buff );
        if( *((long *)data)!=0 || *((long *)data+4)!=0 ) {
            BufferConcat("+");
            if( *((long *)data+4)!=0 ) {
                BufferStore("0x%x", *((long *)data+4) );
                BufferStore("%08x", *((long *)data) );
            } else {
                BufferStore("0x%x", *((long *)data) );
            }
        }
        break;
    }
    return( rv );
}
Exemple #17
0
num_errors DoPass2( section_ptr sec, unsigned_8 *contents, orl_sec_size size,
                    label_list sec_label_list, ref_list sec_ref_list )
// perform pass 2 on one section
{
    struct pass2        data;
    label_entry         l_entry;
    dis_dec_ins         decoded;
    char                name[ MAX_INS_NAME ];
    char                ops[ MAX_OBJ_NAME + 24 ];       // at most 1 label/relocation per instruction, plus room for registers, brackets and other crap
    dis_inst_flags      flags;
    scantab_ptr         st;
    int                 is_intel;
    sa_disasm_struct    sds;
    char                *FPU_fixup;
    int                 pos_tabs;
    bool                is32bit;

    routineBase = 0;
    st = sec->scan;
    data.size = size;
    sds.data = contents;
    sds.last = size - 1;
    l_entry = NULL;
    if( sec_label_list != NULL ) {
        l_entry = sec_label_list->first;
    }
    if( sec_ref_list != NULL ) {
        data.r_entry = sec_ref_list->first;
    } else {
        data.r_entry = NULL;
    }
    data.disassembly_errors = 0;

    if( source_mix ) {
        GetSourceFile( sec );
    }

    PrintHeader( sec );
    if( size && sec_label_list )
        PrintAssumeHeader( sec );
    flags.u.all = DIF_NONE;
    if( GetMachineType() == ORL_MACHINE_TYPE_I386 ) {
        if( ( GetFormat() != ORL_OMF ) ||
            ( ORLSecGetFlags( sec->shnd ) & ORL_SEC_FLAG_USE_32 ) ) {
            flags.u.x86 = DIF_X86_USE32_FLAGS;
        }
        is_intel = 1;
    } else {
        is_intel = IsIntelx86();
    }
    is32bit = ( size >= 0x10000 );
    for( data.loop = 0; data.loop < size; data.loop += decoded.size ) {

        // process data in code segment
        while( st && ( data.loop > st->end ) ) {
            st = st->next;
        }
        if( st && ( data.loop >= st->start ) ) {
            decoded.size = 0;
            processDataInCode( sec, contents, &data, st->end - data.loop, &l_entry );
            st = st->next;
            continue;
        }
        // data may not be listed in scan table, but a fixup at this offset will
        // give it away
        while( data.r_entry && ( data.r_entry->offset < data.loop ) ) {
            data.r_entry = data.r_entry->next;
        }
        FPU_fixup = processFpuEmulatorFixup( &data.r_entry, data.loop );
        if( data.r_entry && ( data.r_entry->offset == data.loop ) ) {
            if( is_intel || IsDataReloc( data.r_entry ) ) {
                // we just skip the data
                decoded.size = 0;
                processDataInCode( sec, contents, &data, RelocSize( data.r_entry ), &l_entry );
                continue;
            }
        }

        if( source_mix ) {
            MixSource( data.loop );
        }
        DisDecodeInit( &DHnd, &decoded );
        decoded.flags.u.all |= flags.u.all;
        sds.offs = data.loop;
        DisDecode( &DHnd, &sds, &decoded );
        if( sec_label_list ) {
            l_entry = handleLabels( sec->name, data.loop, data.loop + decoded.size, l_entry, size );
            if( ( l_entry != NULL )
                && ( l_entry->offset > data.loop )
                && ( l_entry->offset < data.loop + decoded.size ) ) {
                /*
                    If we have a label planted in the middle of this
                    instruction (see inline memchr for example), put
                    out a couple of data bytes, and then restart decode
                    and label process from offset of actual label.
                */
                decoded.size = 0;
                processDataInCode( sec, contents, &data, l_entry->offset - data.loop, &l_entry );
                continue;
            }
        }
        DisFormat( &DHnd, &data, &decoded, DFormat, name, sizeof( name ), ops, sizeof( ops ) );
        if( FPU_fixup != NULL ) {
            if( !(DFormat & DFF_ASM) ) {
                BufferAlignToTab( PREFIX_SIZE_TABS );
            }
            BufferStore( "\t%sFPU fixup %s\n", CommentString, FPU_fixup );
        }
        if( !(DFormat & DFF_ASM) ) {
            unsigned_64     *tmp_64;
            unsigned_32     *tmp_32;
            unsigned_16     *tmp_16;

            tmp_64 = (unsigned_64 *)(contents + data.loop);
            tmp_32 = (unsigned_32 *)(contents + data.loop);
            tmp_16 = (unsigned_16 *)(contents + data.loop);
            if( DHnd.need_bswap ) {
                switch( DisInsSizeInc( &DHnd ) ) {
                //case 8: SWAP_64( *tmp_64 );
                //    break;
                case 4: SWAP_32( *tmp_32 );
                    break;
                case 2: SWAP_16( *tmp_16 );
                    break;
                default:
                    break;
                }
            }
            PrintLinePrefixAddress( data.loop, is32bit );
            PrintLinePrefixData( contents, data.loop, size, DisInsSizeInc( &DHnd ), decoded.size );
            BufferAlignToTab( PREFIX_SIZE_TABS );
        }
        BufferStore( "\t%s", name );
        if( *ops != '\0' ) {
            pos_tabs = ( DisInsNameMax( &DHnd ) + TAB_WIDTH ) / TAB_WIDTH + 1;
            if( !(DFormat & DFF_ASM) ) {
                pos_tabs += PREFIX_SIZE_TABS;
            }
            BufferAlignToTab( pos_tabs );
            BufferConcat( ops );
        }
        BufferConcatNL();
        BufferPrint();
    }
    if( sec_label_list ) {
        l_entry = handleLabels( sec->name, size, (orl_sec_offset)-1, l_entry, size );
    }
    if( !(DFormat & DFF_ASM) ) {
        routineSize = data.loop - routineBase;
        BufferConcatNL();
        BufferMsg( ROUTINE_SIZE );
        BufferStore(" %d ", routineSize );
        BufferMsg( BYTES );
        BufferConcat(",    ");
        BufferMsg( ROUTINE_BASE );
        BufferStore(" %s + %04X\n\n", sec->name, routineBase );
        BufferPrint();
    }
    if( source_mix ) {
        EndSourceMix();
    }
    PrintTail( sec );
    return( data.disassembly_errors );
}
Exemple #18
0
static void printUnixHeader( section_ptr sec )
{
    orl_sec_alignment   alignment;
    orl_sec_flags       flags;
    orl_sec_type        type;
    char                attributes[10];
    char *              ca;

    alignment = ORLSecGetAlignment( sec->shnd );
    type = ORLSecGetType( sec->shnd );
    flags = ORLSecGetFlags( sec->shnd );

    ca = attributes;
    if( !(Options & METAWARE_COMPATIBLE) ) {
        if( (flags & ORL_SEC_FLAG_EXEC) || sec->type == SECTION_TYPE_TEXT ) {
            *ca++ = 'c';
        }
        if( (flags & ORL_SEC_FLAG_INITIALIZED_DATA) || sec->type == SECTION_TYPE_DATA || sec->type == SECTION_TYPE_PDATA ) {
            *ca++ = 'd';
        }
        if( (flags & ORL_SEC_FLAG_UNINITIALIZED_DATA) || sec->type == SECTION_TYPE_BSS ) {
            *ca++ = 'u';
        }
        if( (type == ORL_SEC_TYPE_NOTE) || sec->type == SECTION_TYPE_DRECTVE ) {
            *ca++ = 'i';
        }
        if( flags & ORL_SEC_FLAG_DISCARDABLE ) {
            *ca++ = 'n';
        }
        if( flags & ORL_SEC_FLAG_REMOVE ) {
            *ca++ = 'R';
        }
        if( flags & ORL_SEC_FLAG_READ_PERMISSION ) {
            *ca++ = 'r';
        }
        if( flags & ORL_SEC_FLAG_WRITE_PERMISSION ) {
            *ca++ = 'w';
        }
        if( flags & ORL_SEC_FLAG_EXECUTE_PERMISSION ) {
            *ca++ = 'x';
        }
        if( flags & ORL_SEC_FLAG_SHARED ) {
            *ca++ = 's';
        }
        *ca++ = '0' + alignment;
        *ca = '\0';

        if( !( DFormat & DFF_ASM ) ){
            BufferConcat("\t\t\t\t");
        }
        BufferStore(".new_section %s, \"%s\"", sec->name, attributes );
    } else {
        if( !(flags & ORL_SEC_FLAG_REMOVE ) ) {
            *ca++ = 'a';
        }
        if( flags & ORL_SEC_FLAG_EXEC ) {
            *ca++ = 'x';
        }
        if( flags & ORL_SEC_FLAG_WRITE_PERMISSION ) {
            *ca++ = 'w';
        }
        *ca++ = '\0';
        if( !( DFormat & DFF_ASM ) ) {
            BufferConcat("\t\t\t\t");
        }
        BufferStore(".section %s, \"%s\"", sec->name, attributes );
        BufferConcatNL();
        if( !( DFormat & DFF_ASM ) ) {
            BufferConcat("\t\t\t\t");
        }
        BufferStore(".align %d", (int)alignment );
    }

    BufferConcatNL();
    BufferPrint();
}