288 lines
8.1 KiB
C
288 lines
8.1 KiB
C
/*
|
|
* Built-in modules
|
|
*
|
|
* Copyright 1996 Alexandre Julliard
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
#include "winbase.h"
|
|
#include "wine/winbase16.h"
|
|
#include "wine/winestring.h"
|
|
#include "builtin16.h"
|
|
#include "builtin32.h"
|
|
#include "global.h"
|
|
#include "heap.h"
|
|
#include "module.h"
|
|
#include "miscemu.h"
|
|
#include "neexe.h"
|
|
#include "stackframe.h"
|
|
#include "user.h"
|
|
#include "process.h"
|
|
#include "task.h"
|
|
#include "debugtools.h"
|
|
#include "toolhelp.h"
|
|
|
|
DEFAULT_DEBUG_CHANNEL(module);
|
|
|
|
typedef struct
|
|
{
|
|
LPVOID res_start; /* address of resource data */
|
|
DWORD nr_res;
|
|
DWORD res_size; /* size of resource data */
|
|
} BUILTIN16_RESOURCE;
|
|
|
|
|
|
/* Table of all built-in DLLs */
|
|
|
|
#define MAX_DLLS 50
|
|
|
|
static const BUILTIN16_DESCRIPTOR *builtin_dlls[MAX_DLLS];
|
|
static int nb_dlls;
|
|
|
|
/* list of DLLs that should always be loaded at startup */
|
|
static const char * const always_load[] =
|
|
{
|
|
"system", "display", "wprocs", "wineps", NULL
|
|
};
|
|
|
|
/* Ordinal number for interrupt 0 handler in WPROCS.DLL */
|
|
#define FIRST_INTERRUPT_ORDINAL 100
|
|
|
|
|
|
/***********************************************************************
|
|
* BUILTIN_DoLoadModule16
|
|
*
|
|
* Load a built-in Win16 module. Helper function for BUILTIN_LoadModule
|
|
* and BUILTIN_Init.
|
|
*/
|
|
static HMODULE16 BUILTIN_DoLoadModule16( const BUILTIN16_DESCRIPTOR *descr )
|
|
{
|
|
NE_MODULE *pModule;
|
|
int minsize, res_off;
|
|
SEGTABLEENTRY *pSegTable;
|
|
HMODULE16 hModule;
|
|
const BUILTIN16_RESOURCE *rsrc = descr->rsrc;
|
|
|
|
if (!rsrc)
|
|
{
|
|
hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
|
|
descr->module_size, 0,
|
|
FALSE, FALSE, FALSE, NULL );
|
|
if (!hModule) return 0;
|
|
FarSetOwner16( hModule, hModule );
|
|
|
|
pModule = (NE_MODULE *)GlobalLock16( hModule );
|
|
}
|
|
else
|
|
{
|
|
ET_BUNDLE *bundle;
|
|
|
|
hModule = GLOBAL_Alloc( GMEM_MOVEABLE,
|
|
descr->module_size + rsrc->res_size,
|
|
0, FALSE, FALSE, FALSE );
|
|
if (!hModule) return 0;
|
|
FarSetOwner16( hModule, hModule );
|
|
|
|
pModule = (NE_MODULE *)GlobalLock16( hModule );
|
|
res_off = ((NE_MODULE *)descr->module_start)->res_table;
|
|
|
|
memcpy( (LPBYTE)pModule, descr->module_start, res_off );
|
|
memcpy( (LPBYTE)pModule + res_off, rsrc->res_start, rsrc->res_size );
|
|
memcpy( (LPBYTE)pModule + res_off + rsrc->res_size,
|
|
descr->module_start + res_off, descr->module_size - res_off );
|
|
|
|
/* Have to fix up various pModule-based near pointers. Ugh! */
|
|
pModule->name_table += rsrc->res_size;
|
|
pModule->modref_table += rsrc->res_size;
|
|
pModule->import_table += rsrc->res_size;
|
|
pModule->entry_table += rsrc->res_size;
|
|
|
|
for ( bundle = (ET_BUNDLE *)((LPBYTE)pModule + pModule->entry_table);
|
|
bundle->next;
|
|
bundle = (ET_BUNDLE *)((LPBYTE)pModule + bundle->next) )
|
|
bundle->next += rsrc->res_size;
|
|
|
|
/* NOTE: (Ab)use the hRsrcMap parameter for resource data pointer */
|
|
pModule->hRsrcMap = rsrc->res_start;
|
|
}
|
|
pModule->self = hModule;
|
|
|
|
TRACE( "Built-in %s: hmodule=%04x\n", descr->name, hModule );
|
|
|
|
/* Allocate the code segment */
|
|
|
|
pSegTable = NE_SEG_TABLE( pModule );
|
|
pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
|
|
pSegTable->minsize, hModule,
|
|
TRUE, TRUE, FALSE, NULL );
|
|
if (!pSegTable->hSeg) return 0;
|
|
pSegTable++;
|
|
|
|
/* Allocate the data segment */
|
|
|
|
minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
|
|
minsize += pModule->heap_size;
|
|
if (minsize > 0x10000) minsize = 0x10000;
|
|
pSegTable->hSeg = GLOBAL_Alloc( GMEM_FIXED, minsize,
|
|
hModule, FALSE, FALSE, FALSE );
|
|
if (!pSegTable->hSeg) return 0;
|
|
if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
|
|
descr->data_start, pSegTable->minsize);
|
|
if (pModule->heap_size)
|
|
LocalInit16( GlobalHandleToSel16(pSegTable->hSeg),
|
|
pSegTable->minsize, minsize );
|
|
|
|
if (rsrc)
|
|
NE_InitResourceHandler(hModule);
|
|
|
|
NE_RegisterModule( pModule );
|
|
return hModule;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BUILTIN_Init
|
|
*
|
|
* Load all built-in modules marked as 'always used'.
|
|
*/
|
|
BOOL BUILTIN_Init(void)
|
|
{
|
|
WORD vector;
|
|
HMODULE16 hModule;
|
|
const char * const *ptr = always_load;
|
|
|
|
while (*ptr)
|
|
{
|
|
if (!BUILTIN_LoadModule( *ptr )) return FALSE;
|
|
ptr++;
|
|
}
|
|
|
|
/* Set interrupt vectors from entry points in WPROCS.DLL */
|
|
|
|
hModule = GetModuleHandle16( "WPROCS" );
|
|
for (vector = 0; vector < 256; vector++)
|
|
{
|
|
FARPROC16 proc = NE_GetEntryPoint( hModule,
|
|
FIRST_INTERRUPT_ORDINAL + vector );
|
|
assert(proc);
|
|
INT_SetPMHandler( vector, proc );
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BUILTIN_LoadModule
|
|
*
|
|
* Load a built-in module.
|
|
*/
|
|
HMODULE16 BUILTIN_LoadModule( LPCSTR name )
|
|
{
|
|
char dllname[16], *p;
|
|
int i;
|
|
|
|
/* Fix the name in case we have a full path and extension */
|
|
|
|
if ((p = strrchr( name, '\\' ))) name = p + 1;
|
|
lstrcpynA( dllname, name, sizeof(dllname) );
|
|
p = strrchr( dllname, '.' );
|
|
|
|
if (!p) strcat( dllname, ".dll" );
|
|
|
|
for (i = 0; i < nb_dlls; i++)
|
|
{
|
|
const BUILTIN16_DESCRIPTOR *descr = builtin_dlls[i];
|
|
NE_MODULE *pModule = (NE_MODULE *)descr->module_start;
|
|
OFSTRUCT *pOfs = (OFSTRUCT *)((LPBYTE)pModule + pModule->fileinfo);
|
|
if (!lstrcmpiA( pOfs->szPathName, dllname ))
|
|
return BUILTIN_DoLoadModule16( descr );
|
|
}
|
|
return (HMODULE16)2;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BUILTIN_GetEntryPoint16
|
|
*
|
|
* Return the ordinal, name, and type info corresponding to a CS:IP address.
|
|
* This is used only by relay debugging.
|
|
*/
|
|
LPCSTR BUILTIN_GetEntryPoint16( STACK16FRAME *frame, LPSTR name, WORD *pOrd )
|
|
{
|
|
WORD i, max_offset;
|
|
register BYTE *p;
|
|
NE_MODULE *pModule;
|
|
ET_BUNDLE *bundle;
|
|
ET_ENTRY *entry;
|
|
|
|
if (!(pModule = NE_GetPtr( FarGetOwner16( GlobalHandle16( frame->module_cs ) ))))
|
|
return NULL;
|
|
|
|
max_offset = 0;
|
|
*pOrd = 0;
|
|
bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
|
|
do
|
|
{
|
|
entry = (ET_ENTRY *)((BYTE *)bundle+6);
|
|
for (i = bundle->first + 1; i <= bundle->last; i++)
|
|
{
|
|
if ((entry->offs < frame->entry_ip)
|
|
&& (entry->segnum == 1) /* code segment ? */
|
|
&& (entry->offs >= max_offset))
|
|
{
|
|
max_offset = entry->offs;
|
|
*pOrd = i;
|
|
}
|
|
entry++;
|
|
}
|
|
} while ( (bundle->next)
|
|
&& (bundle = (ET_BUNDLE *)((BYTE *)pModule+bundle->next)));
|
|
|
|
/* Search for the name in the resident names table */
|
|
/* (built-in modules have no non-resident table) */
|
|
|
|
p = (BYTE *)pModule + pModule->name_table;
|
|
while (*p)
|
|
{
|
|
p += *p + 1 + sizeof(WORD);
|
|
if (*(WORD *)(p + *p + 1) == *pOrd) break;
|
|
}
|
|
|
|
sprintf( name, "%.*s.%d: %.*s",
|
|
*((BYTE *)pModule + pModule->name_table),
|
|
(char *)pModule + pModule->name_table + 1,
|
|
*pOrd, *p, (char *)(p + 1) );
|
|
|
|
/* Retrieve type info string */
|
|
return *(LPCSTR *)((LPBYTE)PTR_SEG_OFF_TO_LIN( frame->module_cs, frame->callfrom_ip ) + 4);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BUILTIN_RegisterDLL
|
|
*
|
|
* Register a built-in DLL descriptor.
|
|
*/
|
|
void BUILTIN_RegisterDLL( const BUILTIN16_DESCRIPTOR *descr )
|
|
{
|
|
assert( nb_dlls < MAX_DLLS );
|
|
builtin_dlls[nb_dlls++] = descr;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* BUILTIN_DefaultIntHandler
|
|
*
|
|
* Default interrupt handler.
|
|
*/
|
|
void WINAPI BUILTIN_DefaultIntHandler( CONTEXT86 *context )
|
|
{
|
|
WORD ordinal;
|
|
char name[80];
|
|
BUILTIN_GetEntryPoint16( CURRENT_STACK16, name, &ordinal );
|
|
INT_BARF( context, ordinal - FIRST_INTERRUPT_ORDINAL );
|
|
}
|