245 lines
7.2 KiB
C
245 lines
7.2 KiB
C
/*
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* Built-in modules
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*
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* Copyright 1996 Alexandre Julliard
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*/
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#include <assert.h>
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#include <ctype.h>
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#include <string.h>
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#include <stdio.h>
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#include "winbase.h"
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#include "wine/winbase16.h"
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#include "wine/winestring.h"
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#include "builtin16.h"
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#include "builtin32.h"
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#include "global.h"
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#include "heap.h"
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#include "module.h"
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#include "miscemu.h"
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#include "stackframe.h"
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#include "task.h"
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#include "debugtools.h"
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#include "toolhelp.h"
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DEFAULT_DEBUG_CHANNEL(module);
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typedef struct
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{
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LPVOID res_start; /* address of resource data */
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DWORD nr_res;
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DWORD res_size; /* size of resource data */
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} BUILTIN16_RESOURCE;
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/* Table of all built-in DLLs */
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#define MAX_DLLS 50
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static const BUILTIN16_DESCRIPTOR *builtin_dlls[MAX_DLLS];
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static int nb_dlls;
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/***********************************************************************
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* BUILTIN_DoLoadModule16
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*
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* Load a built-in Win16 module. Helper function for BUILTIN_LoadModule.
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*/
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static HMODULE16 BUILTIN_DoLoadModule16( const BUILTIN16_DESCRIPTOR *descr )
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{
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NE_MODULE *pModule;
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int minsize, res_off;
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SEGTABLEENTRY *pSegTable;
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HMODULE16 hModule;
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const BUILTIN16_RESOURCE *rsrc = descr->rsrc;
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if (!rsrc)
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{
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hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
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descr->module_size, 0,
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FALSE, FALSE, FALSE );
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if (!hModule) return 0;
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FarSetOwner16( hModule, hModule );
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pModule = (NE_MODULE *)GlobalLock16( hModule );
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}
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else
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{
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ET_BUNDLE *bundle;
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hModule = GLOBAL_Alloc( GMEM_MOVEABLE,
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descr->module_size + rsrc->res_size,
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0, FALSE, FALSE, FALSE );
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if (!hModule) return 0;
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FarSetOwner16( hModule, hModule );
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pModule = (NE_MODULE *)GlobalLock16( hModule );
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res_off = ((NE_MODULE *)descr->module_start)->res_table;
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memcpy( (LPBYTE)pModule, descr->module_start, res_off );
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memcpy( (LPBYTE)pModule + res_off, rsrc->res_start, rsrc->res_size );
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memcpy( (LPBYTE)pModule + res_off + rsrc->res_size,
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(LPBYTE)descr->module_start + res_off, descr->module_size - res_off );
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/* Have to fix up various pModule-based near pointers. Ugh! */
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pModule->name_table += rsrc->res_size;
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pModule->modref_table += rsrc->res_size;
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pModule->import_table += rsrc->res_size;
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pModule->entry_table += rsrc->res_size;
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for ( bundle = (ET_BUNDLE *)((LPBYTE)pModule + pModule->entry_table);
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bundle->next;
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bundle = (ET_BUNDLE *)((LPBYTE)pModule + bundle->next) )
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bundle->next += rsrc->res_size;
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/* NOTE: (Ab)use the hRsrcMap parameter for resource data pointer */
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pModule->hRsrcMap = rsrc->res_start;
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}
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pModule->self = hModule;
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TRACE( "Built-in %s: hmodule=%04x\n", descr->name, hModule );
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/* Allocate the code segment */
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pSegTable = NE_SEG_TABLE( pModule );
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pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
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pSegTable->minsize, hModule, TRUE, TRUE, FALSE );
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if (!pSegTable->hSeg) return 0;
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pSegTable++;
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/* Allocate the data segment */
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minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
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minsize += pModule->heap_size;
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if (minsize > 0x10000) minsize = 0x10000;
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pSegTable->hSeg = GLOBAL_Alloc( GMEM_FIXED, minsize,
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hModule, FALSE, FALSE, FALSE );
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if (!pSegTable->hSeg) return 0;
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if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
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descr->data_start, pSegTable->minsize);
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if (pModule->heap_size)
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LocalInit16( GlobalHandleToSel16(pSegTable->hSeg),
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pSegTable->minsize, minsize );
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if (rsrc)
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NE_InitResourceHandler(hModule);
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NE_RegisterModule( pModule );
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return hModule;
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}
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/***********************************************************************
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* BUILTIN_LoadModule
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*
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* Load a built-in module.
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*/
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HMODULE16 BUILTIN_LoadModule( LPCSTR name )
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{
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char dllname[16], *p;
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void *handle;
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int i;
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/* Fix the name in case we have a full path and extension */
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if ((p = strrchr( name, '\\' ))) name = p + 1;
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lstrcpynA( dllname, name, sizeof(dllname) );
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p = strrchr( dllname, '.' );
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if (!p) strcat( dllname, ".dll" );
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for (i = 0; i < nb_dlls; i++)
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{
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const BUILTIN16_DESCRIPTOR *descr = builtin_dlls[i];
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NE_MODULE *pModule = (NE_MODULE *)descr->module_start;
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OFSTRUCT *pOfs = (OFSTRUCT *)((LPBYTE)pModule + pModule->fileinfo);
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if (!strcasecmp( pOfs->szPathName, dllname ))
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return BUILTIN_DoLoadModule16( descr );
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}
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if ((handle = BUILTIN32_dlopen( dllname )))
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{
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for (i = 0; i < nb_dlls; i++)
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{
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const BUILTIN16_DESCRIPTOR *descr = builtin_dlls[i];
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NE_MODULE *pModule = (NE_MODULE *)descr->module_start;
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OFSTRUCT *pOfs = (OFSTRUCT *)((LPBYTE)pModule + pModule->fileinfo);
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if (!strcasecmp( pOfs->szPathName, dllname ))
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return BUILTIN_DoLoadModule16( descr );
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}
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ERR( "loaded .so but dll %s still not found\n", dllname );
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BUILTIN32_dlclose( handle );
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}
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return (HMODULE16)2;
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}
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/***********************************************************************
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* BUILTIN_GetEntryPoint16
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*
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* Return the ordinal, name, and type info corresponding to a CS:IP address.
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* This is used only by relay debugging.
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*/
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LPCSTR BUILTIN_GetEntryPoint16( STACK16FRAME *frame, LPSTR name, WORD *pOrd )
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{
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WORD i, max_offset;
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register BYTE *p;
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NE_MODULE *pModule;
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ET_BUNDLE *bundle;
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ET_ENTRY *entry;
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if (!(pModule = NE_GetPtr( FarGetOwner16( GlobalHandle16( frame->module_cs ) ))))
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return NULL;
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max_offset = 0;
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*pOrd = 0;
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bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
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do
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{
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entry = (ET_ENTRY *)((BYTE *)bundle+6);
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for (i = bundle->first + 1; i <= bundle->last; i++)
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{
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if ((entry->offs < frame->entry_ip)
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&& (entry->segnum == 1) /* code segment ? */
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&& (entry->offs >= max_offset))
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{
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max_offset = entry->offs;
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*pOrd = i;
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}
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entry++;
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}
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} while ( (bundle->next)
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&& (bundle = (ET_BUNDLE *)((BYTE *)pModule+bundle->next)));
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/* Search for the name in the resident names table */
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/* (built-in modules have no non-resident table) */
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p = (BYTE *)pModule + pModule->name_table;
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while (*p)
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{
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p += *p + 1 + sizeof(WORD);
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if (*(WORD *)(p + *p + 1) == *pOrd) break;
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}
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sprintf( name, "%.*s.%d: %.*s",
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*((BYTE *)pModule + pModule->name_table),
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(char *)pModule + pModule->name_table + 1,
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*pOrd, *p, (char *)(p + 1) );
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/* Retrieve type info string */
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return *(LPCSTR *)((LPBYTE)PTR_SEG_OFF_TO_LIN( frame->module_cs, frame->callfrom_ip ) + 4);
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}
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/***********************************************************************
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* BUILTIN_RegisterDLL
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*
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* Register a built-in DLL descriptor.
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*/
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void BUILTIN_RegisterDLL( const BUILTIN16_DESCRIPTOR *descr )
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{
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assert( nb_dlls < MAX_DLLS );
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builtin_dlls[nb_dlls++] = descr;
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}
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