typewv.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 627 行 · 第 1/2 页

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  Watcom debug format type processing.
*
****************************************************************************/


#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <setjmp.h>

#include "wdglb.h"
#include "dumpwv.h"
#include "wdfunc.h"

/*
 * scalar_type - dump type of scalar item
 */
static void scalar_type( unsigned_8 type )
/****************************************/
{
    Puthex( type, 2 );
    switch( type >> 4 ) {
    case 0:
        Wdputslc( ", integer" );
        break;
    case 1:
        Wdputslc( ", unsigned" );
        break;
    case 2:
        Wdputslc( ", float" );
        break;
    case 3:
        Wdputslc( ", void" );
        break;
    case 4:
        Wdputslc( ", complex" );
        break;
    }

} /* scalar_type */

/*
 * attribute_byte - dump type of scalar item
 */
static void attribute_byte( unsigned_8 type )
/*******************************************/
{
    Puthex( type, 2 );
    if( type & 0x1 ) {
        Wdputslc( ", internal" );
    }
    if( type & 0x2 ) {
        Wdputslc( ", public" );
    }
    if( type & 0x4 ) {
        Wdputslc( ", protected" );
    }
    if( type & 0x8 ) {
        Wdputslc( ", private" );
    }

} /* attribute_byte */

/*
 * base_type_index - dump info
 */
static char *base_type_index( char *buff )
/****************************************/
{
    unsigned_16 index;
    char        *ptr;

    Wdputs( "   base type idx = " );
    ptr = Get_type_index( buff, &index );
    Putdec( index );
    Wdputslc( "\n" );
    return( ptr );
}

/*
 * near_ptr - dump info
 */
static void near_ptr( char *buff )
/********************************/
{
    unsigned_16 index;
    char        *ptr;

    index = 3;
    ptr = buff+2;
    if( *ptr & 0x80 ) {
        index = 4;
    }
    ptr = base_type_index( ptr );
    if( buff[0] > index ) {
        Wdputs( "          base locator = " );
        Dump_location_expression( ptr, "            " );
    }
}

/*
 * param_type_index - dump info
 */
static void param_type_index( unsigned_8 num_params, char * ptr )
/***************************************************************/
{
    unsigned_8  i;
    unsigned_16 index;

    if( *ptr & 0x80 ) {
        num_params /= 2;
    }
    for( i = 0; i < num_params; i++ ) {
        Wdputslc( "\n" );
        Wdputs( "            param " );
        Putdec( i+1 );
        Wdputs( ":  type idx = " );
        ptr = Get_type_index( ptr, &index );
        Putdec( index );
    }
    Wdputslc( "\n" );
}

/*
 * near_far_proc - dump info
 */
static void near_far_proc( char *buff )
/*************************************/
{
    char            *ptr;
    unsigned_16     index;
    unsigned_8      num_parms;

    ptr = buff+2;
    Wdputs( "          return type = " );
    num_parms = buff[0] - 4;
    if( *ptr & 0x80 ) {
        num_parms--;
    }
    ptr = Get_type_index( ptr, &index );
    Putdec( index );
    ptr++;
    param_type_index( num_parms, ptr );
}

/*
 * array_index - dump info
 */
static void array_index( char *ptr, unsigned_8 size )
/***************************************************/
{
    Wdputs( "          high bound = " );
    Puthex( *ptr, 2*size );
    base_type_index( ptr+size );
}

/*
 * bit_field_struct - dump info
 */
static void bit_field_struct( char *buff, unsigned_8 size, bool bit )
/*******************************************************************/
{
    char        *ptr;
    unsigned_16 index;
    char        name[256];

    ptr = buff+2+size;
    if( bit ) {
        ptr += 2;
    }
    ptr = Get_type_index( ptr, &index );
    Get_local_name( name, ptr, buff );
    Wdputs( "          \"" );
    Wdputs( name );
    Wdputs( "\"  offset = " );
    ptr = buff+2;
    Puthex( *ptr, 2*size );
    Wdputs( "  type idx = " );
    Putdec( index );
    if( bit ) {
        Wdputslc( "\n        start bit = " );
        ptr++;
        Puthex( *ptr, 2 );
        Wdputslc( "  bit size = " );
        ptr++;
        Puthex( *ptr, 2 );
    }
    Wdputslc( "\n" );
}

/*
 * bit_field_class - dump info
 */
static void bit_field_class( char *buff, bool bit )
/*************************************************/
{
    char        *ptr;
    unsigned_16 index;
    char        name[256];

    ptr = buff+3;
    Wdputs( "          field locator = " );
    ptr = Dump_location_expression( ptr, "            " );
    if( bit ) {
        ptr += 2;
    }
    ptr = Get_type_index( ptr, &index );
    Get_local_name( name, ptr, buff );
    Wdputs( "          name = \"" );
    Wdputs( name );
    Wdputs( "\"  type idx = " );
    Putdec( index );
    Wdputslc( "\n          attribute = " );
    attribute_byte( buff[2] );
    if( bit ) {
        Wdputslc( "  start bit = " );
        ptr++;
        Puthex( *ptr, 2 );
        Wdputslc( "  bit size = " );
        ptr++;
        Puthex( *ptr, 2 );
    }
    Wdputslc( "\n" );
}

/*
 * range - dump info
 */
static void range( char *ptr, unsigned_8 size )
/*********************************************/
{
    Wdputs( "          low bound = " );
    Puthex( *ptr, 2*size );
    Wdputs( "   high bound = " );
    ptr += size;
    Puthex( *ptr, 2*size );
    ptr += size;
    base_type_index( ptr );
}

/*
 * enum_const - dump info
 */
static void enum_const( char *buff, unsigned_8 size )
/***************************************************/
{
    char        name[256];

    Get_local_name( name, buff+2+size, buff );
    Wdputs( "          \"" );
    Wdputs( name );
    Wdputs( "\"   value = " );
    Puthex( *(buff+2), 2*size );
    Wdputslc( "\n" );
}

/*
 * desc_array - dump info
 */
static void desc_array( char *ptr, bool is386 )
/*********************************************/
{
    addr32_ptr  *p32;
    addr48_ptr  *p48;

    Wdputs( "          scalar type 1 = " );
    scalar_type( ptr[0] );
    Wdputs( "  scalar type 2 = " );
    scalar_type( ptr[1] );
    ptr += 2;
    Wdputslc( "\n          addr = " );
    if( is386 ) {
        p48 = (addr48_ptr *)ptr;
        ptr += sizeof(addr48_ptr);
        Puthex( p48->segment, 4 );
        Wdputc( ':' );
        Puthex( p48->offset, 8 );
    } else {
        p32 = (addr32_ptr *)ptr;
        ptr += sizeof(addr32_ptr);
        Puthex( p32->segment, 4 );
        Wdputc( ':' );
        Puthex( p32->offset, 4 );
    }
    base_type_index( ptr );

} /* desc_array */