symtab.c

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/****************************************************************************
*
*                            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:  Symbol table routines for wlink.
*
****************************************************************************/


#include <stdio.h>
#include <string.h>
#include "walloca.h"
#include "linkstd.h"
#include "pcobj.h"
#include "objio.h"
#include "alloc.h"
#include "newmem.h"
#include "msg.h"
#include "wlnkmsg.h"
#include "objnode.h"
#include "wcomdef.h"
#include "mapio.h"
#include "impexp.h"
#include "objstrip.h"
#include "objpass1.h"
#include "ring.h"
#include "strtab.h"
#include "carve.h"
#include "permdata.h"
#include "nwpfx.h"
#include "command.h"


#define STATIC_TABSIZE  241  /* should be prime */
#define GLOBAL_TABSIZE  1789  /* should be prime */

#define STATIC_TABALLOC (256 * sizeof(symbol *))  // 1st power of 128 > TABSIZE
#define GLOBAL_TABALLOC (1792 * sizeof(symbol *)) // 1st power of 128 > TABSIZE

int             (*CmpRtn)( const void *, const void *, size_t );
unsigned        NameLen;
symbol *        LastSym;

static  symbol *        SymList = NULL;

// not a static array to save space for watfor

static symbol **    GlobalSymPtrs;
static symbol **    StaticSymPtrs;

static unsigned GlobalHashFn( char *, int );
static unsigned StaticHashFn( char *, int );
static void     SetSymAlias( symbol * sym, char *target, int targetlen );

static const unsigned ScatterTable[] = {
#ifdef __386__
0x1DE82EE1,
0x6E21134B,
0x0F406D5B,
0x07671454,
0x3FE530A8,
0x05D03ED8,
0x63060B8C,
0x02B93A2E,
0x065A15F3,
0x177C1A12,
0x1100789C,
0x3DB02031,
0x54160785,
0x77250A74,
0x091B1715,
0x799E7A0C,
0x5A05780C,
0x5A4D3F42,
0x4F21462B,
0x750F15FC,
0x3EAF75A2,
0x0B6C1F0E,
0x1A394B3E,
0x574C2246,
0x35B72B4F,
0x0D7A6536,
0x64646B5A,
0x0BDA22BF,
0x075E1283,
0x2F6A6F62,
0x6A0034B9,
0x0DFB1646,
0x0800549F,
0x0FAB3B09,
0x1947783E,
0x24294C47,
0x7F935C6B,
0x0FA812EB,
0x71CF72F9,
0x0BA06A38,
0x012E179F,
0x37476C96,
0x540927A8,
0x13D3211D,
0x327E685D,
0x086C75E3,
0x40C46832,
0x29F31306,
0x035046B3,
0x42755278,
0x08A90F2C,
0x546D688D,
0x550C121B,
0x15BD0946,
0x6BBF6956,
0x1E6B165B,
0x123512FC,
0x471C220A,
0x28E74F1D,
0x735152A2,
0x35ED2C29,
0x436372CE,
0x7D5E6E19,
0x6A3F3AA2,
0x436D3C5F,
0x22E21D67,
0x1440428E,
0x01942826,
0x2D8F2FCA,
0x1CE43CF7,
0x660240ED,
0x4A663707,
0x2E47417E,
0x6B2F436A,
0x07F52F53,
0x040D7AA6,
0x0E236D00,
0x1D8706FB,
0x6BC72F06,
0x27986374,
0x5BD00FBC,
0x5D2A7FAE,
0x0F0375FC,
0x6354546B,
0x13973A8F,
0x205334D6,
0x1A8F3856,
0x064A6894,
0x36D9333D,
0x4DB95A8F,
0x722B41DF,
0x5BBF6881,
0x539925F9,
0x500F1F42,
0x33F63F91,
0x76B46FD2,
0x7BF106E2,
0x19842926,
0x27EB390E,
0x6D6542B3,
0x2D992382,
0x174343BB,
0x1F5E3A28,
0x04CD535A,
0x29666450,
0x14F23D4F,
0x44822C5C,
0x4C1F778B,
0x3AC63E2D,
0x1035747C,
0x59E46051,
0x284C4E16,
0x6F4753E9,
0x7C2A15A6,
0x69EF475B,
0x4F815456,
0x3E0F47BD,
0x74EC087F,
0x66685CFC,
0x34A82BB2,
0x1F633CD0,
0x63120D84,
0x37F14060,
0x62E40F1D,
0x142308B4,
0x0F2F0B7F,
0x3D887DDF,
0x49187897,
0x1D4A14E8,
0x25520D06,
0x3C07087C,
0x755F76AC,
0x23707056,
0x28866DF9,
0x3DA4636A,
0x409331F2,
0x4E4A10D5,
0x56513905,
0x61717B84,
0x69C8228E,
0x4C2744A6,
0x7A373525,
0x1ADB30D2,
0x21D075AE,
0x097353F8,
0x3136231E,
0x612C1009,
0x06B7230D,
0x58355266,
0x1D492B01,
0x4F0B3C0A,
0x0F463274,
0x07932076,
0x08E779AB,
0x31F9075F,
0x66823136,
0x6B4B1D1A,
0x7A830E45,
0x09D43DC3,
0x372C57B1,
0x53390731,
0x380C37C6,
0x78551D9A,
0x67415ED2,
0x72D60F05,
0x3A6D426F,
0x20940173,
0x4379058F,
0x38B517CC,
0x110C554C,
0x7681398B,
0x1ACA466D,
0x16062929,
0x354D7FB8,
0x7E6B154A,
0x49E43CFA,
0x361510AA,
0x4E0E76D7,
0x7C7B1CC6,
0x36B43B52,
0x25C9334A,
0x632A031B,
0x14387A3D,
0x3BE40F9C,
0x6B280EEE,
0x00F81DC2,
0x5802139E,
0x0457798B,
0x0CD06BEA,
0x4BCB3E54,
0x489953FF,
0x56B04FE0,
0x097E3E7C,
0x03725827,
0x44952525,
0x50CA55E5,
0x3F89384E,
0x76B707DE,
0x67EE1902,
0x133F40F1,
0x446509F6,
0x66E370E3,
0x5B744330,
0x5CE36DE9,
0x2C225477,
0x5B364AF3,
0x14554279,
0x164746BB,
0x40EC4ABF,
0x64711F90,
0x039C7A51,
0x4D3957E3,
0x2A8B0328,
0x504E378E,
0x35AE7C58,
0x204115E8,
0x05E378FA,
0x4D043889,
0x61CD21DB,
0x1A2452DE,
0x6C733DE6,
0x7CC6726B,
0x69985551,
0x7D6363E3,
0x6BD85B8A,
0x79435CEA,
0x48870BE0,
0x7FBB76A4,
0x6D4964F2,
0x47264505,
0x73716ED8,
0x75A416D8,
0x0D1B3813,
0x39952A8C,
0x28083535,
0x6DD463C1,
0x623C6F4F,
0x45B34D96,
0x2C592D1F,
0x3CBB75B1,
0x35B902F6,
0x46206C0B,
0x7E4E756B,
0x78067381,
0x2A3B1AC2,
0x2E762F1A,
0x732E6719,
0x621F5819,
0x53840F58,
0x2ECC48C2,
0x471A2ED6,
0x45A967ED,
0x3DF41BCC,
0x4735414C,
0x1C90167A,
0x4106567B
#else   // it is a 16-bit hosted linker
0x1DE8,
0x2EE1,
0x6E21,
0x134B,
0x0F40,
0x6D5B,
0x0767,
0x1454,
0x3FE5,
0x30A8,
0x05D0,
0x3ED8,
0x6306,
0x0B8C,
0x02B9,
0x3A2E,
0x065A,
0x15F3,
0x177C,
0x1A12,
0x1100,
0x789C,
0x3DB0,
0x2031,
0x5416,
0x0785,
0x7725,
0x0A74,
0x091B,
0x1715,
0x799E,
0x7A0C,
0x5A05,
0x780C,
0x5A4D,
0x3F42,
0x4F21,
0x462B,
0x750F,
0x15FC,
0x3EAF,
0x75A2,
0x0B6C,
0x1F0E,
0x1A39,
0x4B3E,
0x574C,
0x2246,
0x35B7,
0x2B4F,
0x0D7A,
0x6536,
0x6464,
0x6B5A,
0x0BDA,
0x22BF,
0x075E,
0x1283,
0x2F6A,
0x6F62,
0x6A00,
0x34B9,
0x0DFB,
0x1646,
0x0800,
0x549F,
0x0FAB,
0x3B09,
0x1947,
0x783E,
0x2429,
0x4C47,
0x7F93,
0x5C6B,
0x0FA8,
0x12EB,
0x71CF,
0x72F9,
0x0BA0,
0x6A38,
0x012E,
0x179F,
0x3747,
0x6C96,
0x5409,
0x27A8,
0x13D3,
0x211D,
0x327E,
0x685D,
0x086C,
0x75E3,
0x40C4,
0x6832,
0x29F3,
0x1306,
0x0350,
0x46B3,
0x4275,
0x5278,
0x08A9,
0x0F2C,
0x546D,
0x688D,
0x550C,
0x121B,
0x15BD,
0x0946,
0x6BBF,
0x6956,
0x1E6B,
0x165B,
0x1235,
0x12FC,
0x471C,
0x220A,
0x28E7,
0x4F1D,
0x7351,
0x52A2,
0x35ED,
0x2C29,
0x4363,
0x72CE,
0x7D5E,
0x6E19,
0x6A3F,
0x3AA2,
0x436D,
0x3C5F,
0x22E2,
0x1D67,
0x1440,
0x428E,
0x0194,
0x2826,
0x2D8F,
0x2FCA,
0x1CE4,
0x3CF7,
0x6602,
0x40ED,
0x4A66,
0x3707,
0x2E47,
0x417E,
0x6B2F,
0x436A,
0x07F5,
0x2F53,
0x040D,
0x7AA6,
0x0E23,
0x6D00,
0x1D87,
0x06FB,
0x6BC7,
0x2F06,
0x2798,
0x6374,
0x5BD0,
0x0FBC,
0x5D2A,
0x7FAE,
0x0F03,
0x75FC,
0x6354,
0x546B,
0x1397,
0x3A8F,
0x2053,
0x34D6,
0x1A8F,
0x3856,
0x064A,
0x6894,
0x36D9,
0x333D,
0x4DB9,
0x5A8F,
0x722B,
0x41DF,
0x5BBF,
0x6881,
0x5399,
0x25F9,
0x500F,
0x1F42,
0x33F6,