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Sweden-Number/tools/winebuild/spec16.c

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/*
* 16-bit spec files
*
* Copyright 1993 Robert J. Amstadt
* Copyright 1995 Martin von Loewis
* Copyright 1995, 1996, 1997 Alexandre Julliard
* Copyright 1997 Eric Youngdale
* Copyright 1999 Ulrich Weigand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <ctype.h>
#include "wine/exception.h"
#include "wine/library.h"
#include "builtin16.h"
#include "module.h"
#include "stackframe.h"
#include "build.h"
/*******************************************************************
* output_file_header
*
* Output a file header with the common declarations we need.
*/
static void output_file_header( FILE *outfile )
{
output_standard_file_header( outfile );
fprintf( outfile, "extern struct\n{\n" );
fprintf( outfile, " void *base[8192];\n" );
fprintf( outfile, " unsigned long limit[8192];\n" );
fprintf( outfile, " unsigned char flags[8192];\n" );
fprintf( outfile, "} wine_ldt_copy;\n\n" );
#ifdef __i386__
fprintf( outfile, "#define __stdcall __attribute__((__stdcall__))\n\n" );
#else
fprintf( outfile, "#define __stdcall\n\n" );
#endif
}
/*******************************************************************
* StoreVariableCode
*
* Store a list of ints into a byte array.
*/
static int StoreVariableCode( unsigned char *buffer, int size, ORDDEF *odp )
{
int i;
switch(size)
{
case 1:
for (i = 0; i < odp->u.var.n_values; i++)
buffer[i] = odp->u.var.values[i];
break;
case 2:
for (i = 0; i < odp->u.var.n_values; i++)
((unsigned short *)buffer)[i] = odp->u.var.values[i];
break;
case 4:
for (i = 0; i < odp->u.var.n_values; i++)
((unsigned int *)buffer)[i] = odp->u.var.values[i];
break;
}
return odp->u.var.n_values * size;
}
/*******************************************************************
* BuildModule16
*
* Build the in-memory representation of a 16-bit NE module, and dump it
* as a byte stream into the assembly code.
*/
static int BuildModule16( FILE *outfile, int max_code_offset,
int max_data_offset )
{
int i;
char *buffer;
NE_MODULE *pModule;
SEGTABLEENTRY *pSegment;
OFSTRUCT *pFileInfo;
BYTE *pstr;
ET_BUNDLE *bundle = 0;
ET_ENTRY entry;
/* Module layout:
* NE_MODULE Module
* OFSTRUCT File information
* SEGTABLEENTRY Segment 1 (code)
* SEGTABLEENTRY Segment 2 (data)
* WORD[2] Resource table (empty)
* BYTE[2] Imported names (empty)
* BYTE[n] Resident names table
* BYTE[n] Entry table
*/
buffer = xmalloc( 0x10000 );
memset( buffer, 0, 0x10000 );
pModule = (NE_MODULE *)buffer;
pModule->magic = IMAGE_OS2_SIGNATURE;
pModule->count = 1;
pModule->next = 0;
pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN | NE_FFLAGS_LIBMODULE;
pModule->dgroup = 2;
pModule->heap_size = DLLHeapSize;
pModule->stack_size = 0;
pModule->ip = 0;
pModule->cs = 0;
pModule->sp = 0;
pModule->ss = 0;
pModule->seg_count = 2;
pModule->modref_count = 0;
pModule->nrname_size = 0;
pModule->modref_table = 0;
pModule->nrname_fpos = 0;
pModule->moveable_entries = 0;
pModule->alignment = 0;
pModule->truetype = 0;
pModule->os_flags = NE_OSFLAGS_WINDOWS;
pModule->misc_flags = 0;
pModule->dlls_to_init = 0;
pModule->nrname_handle = 0;
pModule->min_swap_area = 0;
pModule->expected_version = 0;
pModule->module32 = 0;
pModule->self = 0;
pModule->self_loading_sel = 0;
/* File information */
pFileInfo = (OFSTRUCT *)(pModule + 1);
pModule->fileinfo = (int)pFileInfo - (int)pModule;
memset( pFileInfo, 0, sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName) );
pFileInfo->cBytes = sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName)
+ strlen(DLLFileName);
strcpy( pFileInfo->szPathName, DLLFileName );
pstr = (char *)pFileInfo + pFileInfo->cBytes + 1;
/* Segment table */
pstr = (char *)(((long)pstr + 3) & ~3);
pSegment = (SEGTABLEENTRY *)pstr;
pModule->seg_table = (int)pSegment - (int)pModule;
pSegment->filepos = 0;
pSegment->size = max_code_offset;
pSegment->flags = 0;
pSegment->minsize = max_code_offset;
pSegment->hSeg = 0;
pSegment++;
pModule->dgroup_entry = (int)pSegment - (int)pModule;
pSegment->filepos = 0;
pSegment->size = max_data_offset;
pSegment->flags = NE_SEGFLAGS_DATA;
pSegment->minsize = max_data_offset;
pSegment->hSeg = 0;
pSegment++;
/* Resource table */
pstr = (char *)pSegment;
pstr = (char *)(((long)pstr + 3) & ~3);
pModule->res_table = (int)pstr - (int)pModule;
pstr += output_res16_directory( pstr );
/* Imported names table */
pstr = (char *)(((long)pstr + 3) & ~3);
pModule->import_table = (int)pstr - (int)pModule;
*pstr++ = 0;
*pstr++ = 0;
/* Resident names table */
pstr = (char *)(((long)pstr + 3) & ~3);
pModule->name_table = (int)pstr - (int)pModule;
/* First entry is module name */
*pstr = strlen( DLLName );
strcpy( pstr + 1, DLLName );
pstr += *pstr + 1;
*pstr++ = 0;
*pstr++ = 0;
/* Store all ordinals */
for (i = 1; i <= Limit; i++)
{
ORDDEF *odp = Ordinals[i];
WORD ord = i;
if (!odp || !odp->name[0]) continue;
*pstr = strlen( odp->name );
strcpy( pstr + 1, odp->name );
strupper( pstr + 1 );
pstr += *pstr + 1;
memcpy( pstr, &ord, sizeof(WORD) );
pstr += sizeof(WORD);
}
*pstr++ = 0;
/* Entry table */
pstr = (char *)(((long)pstr + 3) & ~3);
pModule->entry_table = (int)pstr - (int)pModule;
for (i = 1; i <= Limit; i++)
{
int selector = 0;
ORDDEF *odp = Ordinals[i];
if (!odp) continue;
switch (odp->type)
{
case TYPE_CDECL:
case TYPE_PASCAL:
case TYPE_PASCAL_16:
case TYPE_STUB:
selector = 1; /* Code selector */
break;
case TYPE_VARIABLE:
selector = 2; /* Data selector */
break;
case TYPE_ABS:
selector = 0xfe; /* Constant selector */
break;
default:
selector = 0; /* Invalid selector */
break;
}
if ( !selector )
continue;
if ( bundle && bundle->last+1 == i )
bundle->last++;
else
{
pstr = (char *)(((long)pstr + 1) & ~1);
if ( bundle )
bundle->next = (char *)pstr - (char *)pModule;
bundle = (ET_BUNDLE *)pstr;
bundle->first = i-1;
bundle->last = i;
bundle->next = 0;
pstr += sizeof(ET_BUNDLE);
}
/* FIXME: is this really correct ?? */
entry.type = 0xff; /* movable */
entry.flags = 3; /* exported & public data */
entry.segnum = selector;
entry.offs = odp->offset;
memcpy( pstr, &entry, sizeof(ET_ENTRY) );
pstr += sizeof(ET_ENTRY);
}
*pstr++ = 0;
/* Dump the module content */
pstr = (char *)(((long)pstr + 3) & ~3);
dump_bytes( outfile, (char *)pModule, (int)pstr - (int)pModule, "Module", 0 );
return (int)pstr - (int)pModule;
}
/*******************************************************************
* BuildCallFrom16Func
*
* Build a 16-bit-to-Wine callback glue function.
*
* The generated routines are intended to be used as argument conversion
* routines to be called by the CallFrom16... core. Thus, the prototypes of
* the generated routines are (see also CallFrom16):
*
* extern WORD WINAPI PREFIX_CallFrom16_C_word_xxx( FARPROC func, LPBYTE args );
* extern LONG WINAPI PREFIX_CallFrom16_C_long_xxx( FARPROC func, LPBYTE args );
* extern void WINAPI PREFIX_CallFrom16_C_regs_xxx( FARPROC func, LPBYTE args,
* CONTEXT86 *context );
* extern void WINAPI PREFIX_CallFrom16_C_intr_xxx( FARPROC func, LPBYTE args,
* CONTEXT86 *context );
*
* where 'C' is the calling convention ('p' for pascal or 'c' for cdecl),
* and each 'x' is an argument ('w'=word, 's'=signed word, 'l'=long,
* 'p'=linear pointer, 't'=linear pointer to null-terminated string,
* 'T'=segmented pointer to null-terminated string).
*
* The generated routines fetch the arguments from the 16-bit stack (pointed
* to by 'args'); the offsets of the single argument values are computed
* according to the calling convention and the argument types. Then, the
* 32-bit entry point is called with these arguments.
*
* For register functions, the arguments (if present) are converted just
* the same as for normal functions, but in addition the CONTEXT86 pointer
* filled with the current register values is passed to the 32-bit routine.
* (An 'intr' interrupt handler routine is treated exactly like a register
* routine, except that upon return, the flags word pushed onto the stack
* by the interrupt is removed by the 16-bit call stub.)
*
*/
static void BuildCallFrom16Func( FILE *outfile, const char *profile, const char *prefix )
{
int i, pos, argsize = 0;
int short_ret = 0;
int reg_func = 0;
int usecdecl = 0;
const char *args = profile + 7;
char *ret_type;
/* Parse function type */
if (!strncmp( "c_", profile, 2 )) usecdecl = 1;
else if (strncmp( "p_", profile, 2 ))
{
fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
return;
}
if (!strncmp( "word_", profile + 2, 5 )) short_ret = 1;
else if (!strncmp( "regs_", profile + 2, 5 )) reg_func = 1;
else if (!strncmp( "intr_", profile + 2, 5 )) reg_func = 2;
else if (strncmp( "long_", profile + 2, 5 ))
{
fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
return;
}
for ( i = 0; args[i]; i++ )
switch ( args[i] )
{
case 'w': /* word */
case 's': /* s_word */
argsize += 2;
break;
case 'l': /* long or segmented pointer */
case 'T': /* segmented pointer to null-terminated string */
case 'p': /* linear pointer */
case 't': /* linear pointer to null-terminated string */
argsize += 4;
break;
}
ret_type = reg_func? "void" : short_ret ? "unsigned short" : "unsigned int";
fprintf( outfile, "typedef %s (__stdcall *proc_%s_t)( ", ret_type, profile );
args = profile + 7;
for ( i = 0; args[i]; i++ )
{
if ( i ) fprintf( outfile, ", " );
switch (args[i])
{
case 'w': fprintf( outfile, "unsigned short" ); break;
case 's': fprintf( outfile, "short" ); break;
case 'l': case 'T': fprintf( outfile, "unsigned int" ); break;
case 'p': case 't': fprintf( outfile, "void *" ); break;
}
}
if ( reg_func )
fprintf( outfile, "%svoid *", i? ", " : "" );
else if ( !i )
fprintf( outfile, "void" );
fprintf( outfile, " );\n" );
fprintf( outfile, "static %s __stdcall __wine_%s_CallFrom16_%s( proc_%s_t proc, unsigned char *args%s )\n",
ret_type, make_c_identifier(prefix), profile, profile,
reg_func? ", void *context" : "" );
fprintf( outfile, "{\n %sproc(\n", reg_func ? "" : "return " );
args = profile + 7;
pos = !usecdecl? argsize : 0;
for ( i = 0; args[i]; i++ )
{
if ( i ) fprintf( outfile, ",\n" );
fprintf( outfile, " " );
switch (args[i])
{
case 'w': /* word */
if ( !usecdecl ) pos -= 2;
fprintf( outfile, "*(unsigned short *)(args+%d)", pos );
if ( usecdecl ) pos += 2;
break;
case 's': /* s_word */
if ( !usecdecl ) pos -= 2;
fprintf( outfile, "*(short *)(args+%d)", pos );
if ( usecdecl ) pos += 2;
break;
case 'l': /* long or segmented pointer */
case 'T': /* segmented pointer to null-terminated string */
if ( !usecdecl ) pos -= 4;
fprintf( outfile, "*(unsigned int *)(args+%d)", pos );
if ( usecdecl ) pos += 4;
break;
case 'p': /* linear pointer */
case 't': /* linear pointer to null-terminated string */
if ( !usecdecl ) pos -= 4;
fprintf( outfile, "((char*)wine_ldt_copy.base[*(unsigned short*)(args+%d) >> 3] + *(unsigned short*)(args+%d))",
pos + 2, pos );
if ( usecdecl ) pos += 4;
break;
default:
fprintf( stderr, "Unknown arg type '%c'\n", args[i] );
}
}
if ( reg_func )
fprintf( outfile, "%s context", i? ",\n" : "" );
fprintf( outfile, " );\n}\n\n" );
}
/*******************************************************************
* BuildCallTo16Func
*
* Build a Wine-to-16-bit callback glue function.
*
* Prototypes for the CallTo16 functions:
* extern WORD CALLBACK PREFIX_CallTo16_word_xxx( FARPROC16 func, args... );
* extern LONG CALLBACK PREFIX_CallTo16_long_xxx( FARPROC16 func, args... );
*
* These routines are provided solely for convenience; they simply
* write the arguments onto the 16-bit stack, and call the appropriate
* wine_call_to_16... core routine.
*
* If you have more sophisticated argument conversion requirements than
* are provided by these routines, you might as well call the core
* routines by yourself.
*
*/
static void BuildCallTo16Func( FILE *outfile, const char *profile, const char *prefix )
{
const char *args = profile + 5;
int i, argsize = 0, short_ret = 0;
if (!strncmp( "word_", profile, 5 )) short_ret = 1;
else if (strncmp( "long_", profile, 5 ))
{
fprintf( stderr, "Invalid function name '%s'.\n", profile );
exit(1);
}
fprintf( outfile, "unsigned %s __stdcall %s_CallTo16_%s( void (*proc)()",
short_ret? "short" : "int", prefix, profile );
args = profile + 5;
for ( i = 0; args[i]; i++ )
{
fprintf( outfile, ", " );
switch (args[i])
{
case 'w': fprintf( outfile, "unsigned short" ); argsize += 2; break;
case 'l': fprintf( outfile, "unsigned int" ); argsize += 4; break;
}
fprintf( outfile, " arg%d", i+1 );
}
fprintf( outfile, " )\n{\n" );
#ifdef __i386__
if ( argsize > 0 )
{
fprintf( outfile, " char *args;\n" );
fprintf( outfile, " unsigned int cur_stack;\n\n" );
fprintf( outfile, "#ifdef __GNUC__\n" );
fprintf( outfile, " __asm__(\".byte 0x64\\n\\tmovl (0x%x),%%0\" : \"=r\" (cur_stack));\n",
STACKOFFSET );
fprintf( outfile, "#else\n" );
fprintf( outfile, " extern char *NtCurrentTeb(void);\n" );
fprintf( outfile, " cur_stack = *(unsigned int *)(NtCurrentTeb() + 0x%x);\n",
STACKOFFSET );
fprintf( outfile, "#endif\n" );
fprintf( outfile, " args = (char *)wine_ldt_copy.base[cur_stack >> 19] + (cur_stack & 0xffff);\n" );
}
args = profile + 5;
for ( i = 0; args[i]; i++ )
{
switch (args[i])
{
case 'w': fprintf( outfile, " args -= sizeof(unsigned short); *(unsigned short" ); break;
case 'l': fprintf( outfile, " args -= sizeof(unsigned int); *(unsigned int" ); break;
default: fprintf( stderr, "Unexpected case '%c' in BuildCallTo16Func\n",
args[i] );
}
fprintf( outfile, " *)args = arg%d;\n", i+1 );
}
fprintf( outfile, " return wine_call_to_16_%s( proc, %d );\n}\n\n",
short_ret? "word" : "long", argsize );
#else /* __i386__ */
fprintf( outfile, " assert(0);\n}\n\n" );
#endif /* __i386__ */
}
/*******************************************************************
* get_function_name
*/
static const char *get_function_name( const ORDDEF *odp )
{
static char buffer[80];
sprintf( buffer, "%s_%s_%s",
(odp->type == TYPE_CDECL) ? "c" : "p",
(odp->flags & FLAG_REGISTER) ? "regs" :
(odp->flags & FLAG_INTERRUPT) ? "intr" :
(odp->type == TYPE_PASCAL_16) ? "word" : "long",
odp->u.func.arg_types );
return buffer;
}
/*******************************************************************
* Spec16TypeCompare
*/
static int Spec16TypeCompare( const void *e1, const void *e2 )
{
const ORDDEF *odp1 = *(const ORDDEF **)e1;
const ORDDEF *odp2 = *(const ORDDEF **)e2;
int retval;
int type1 = (odp1->type == TYPE_CDECL) ? 0
: (odp1->type == TYPE_PASCAL_16) ? 1 : 2;
int type2 = (odp2->type == TYPE_CDECL) ? 0
: (odp2->type == TYPE_PASCAL_16) ? 1 : 2;
if (odp1->flags & FLAG_REGISTER) type1 += 4;
if (odp1->flags & FLAG_INTERRUPT) type1 += 8;
if (odp2->flags & FLAG_REGISTER) type2 += 4;
if (odp2->flags & FLAG_INTERRUPT) type2 += 8;
retval = type1 - type2;
if ( !retval )
retval = strcmp( odp1->u.func.arg_types, odp2->u.func.arg_types );
return retval;
}
/*******************************************************************
* output_stub_funcs
*
* Output the functions for stub entry points
*/
static void output_stub_funcs( FILE *outfile )
{
int i;
char *p;
for (i = 0; i <= Limit; i++)
{
ORDDEF *odp = Ordinals[i];
if (!odp || odp->type != TYPE_STUB) continue;
fprintf( outfile, "#ifdef __GNUC__\n" );
fprintf( outfile, "static void __wine_unimplemented( const char *func ) __attribute__((noreturn));\n" );
fprintf( outfile, "#endif\n" );
fprintf( outfile, "static void __wine_unimplemented( const char *func )\n{\n" );
fprintf( outfile, " struct exc_record {\n" );
fprintf( outfile, " unsigned int code, flags;\n" );
fprintf( outfile, " void *rec, *addr;\n" );
fprintf( outfile, " unsigned int params;\n" );
fprintf( outfile, " const void *info[15];\n" );
fprintf( outfile, " } rec;\n\n" );
fprintf( outfile, " extern void __stdcall RtlRaiseException( struct exc_record * );\n\n" );
fprintf( outfile, " rec.code = 0x%08x;\n", EXCEPTION_WINE_STUB );
fprintf( outfile, " rec.flags = %d;\n", EH_NONCONTINUABLE );
fprintf( outfile, " rec.rec = 0;\n" );
fprintf( outfile, " rec.params = 2;\n" );
fprintf( outfile, " rec.info[0] = dllname;\n" );
fprintf( outfile, " rec.info[1] = func;\n" );
fprintf( outfile, "#ifdef __GNUC__\n" );
fprintf( outfile, " rec.addr = __builtin_return_address(1);\n" );
fprintf( outfile, "#else\n" );
fprintf( outfile, " rec.addr = 0;\n" );
fprintf( outfile, "#endif\n" );
fprintf( outfile, " for (;;) RtlRaiseException( &rec );\n}\n\n" );
break;
}
for (i = 0; i <= Limit; i++)
{
ORDDEF *odp = Ordinals[i];
if (!odp || odp->type != TYPE_STUB) continue;
odp->link_name = xrealloc( odp->link_name, strlen(odp->name) + 13 );
strcpy( odp->link_name, "__wine_stub_" );
strcat( odp->link_name, odp->name );
for (p = odp->link_name; *p; p++) if (!isalnum(*p)) *p = '_';
fprintf( outfile, "static void %s(void) { __wine_unimplemented(\"%s\"); }\n",
odp->link_name, odp->name );
}
}
/*******************************************************************
* BuildSpec16File
*
* Build a Win16 assembly file from a spec file.
*/
void BuildSpec16File( FILE *outfile )
{
ORDDEF **type, **typelist;
int i, nFuncs, nTypes;
int code_offset, data_offset, module_size, res_size;
unsigned char *data;
#ifdef __i386__
unsigned short code_selector = wine_get_cs();
#endif
/* File header */
output_file_header( outfile );
fprintf( outfile, "extern unsigned short __wine_call_from_16_word();\n" );
fprintf( outfile, "extern unsigned int __wine_call_from_16_long();\n" );
fprintf( outfile, "extern void __wine_call_from_16_regs();\n" );
fprintf( outfile, "extern void __wine_call_from_16_thunk();\n" );
data = (unsigned char *)xmalloc( 0x10000 );
memset( data, 0, 16 );
data_offset = 16;
strupper( DLLName );
fprintf( outfile, "static const char dllname[] = \"%s\";\n\n", DLLName );
output_stub_funcs( outfile );
/* Build sorted list of all argument types, without duplicates */
typelist = (ORDDEF **)calloc( Limit+1, sizeof(ORDDEF *) );
for (i = nFuncs = 0; i <= Limit; i++)
{
ORDDEF *odp = Ordinals[i];
if (!odp) continue;
switch (odp->type)
{
case TYPE_CDECL:
case TYPE_PASCAL:
case TYPE_PASCAL_16:
case TYPE_STUB:
typelist[nFuncs++] = odp;
default:
break;
}
}
qsort( typelist, nFuncs, sizeof(ORDDEF *), Spec16TypeCompare );
i = nTypes = 0;
while ( i < nFuncs )
{
typelist[nTypes++] = typelist[i++];
while ( i < nFuncs && Spec16TypeCompare( typelist + i, typelist + nTypes-1 ) == 0 )
i++;
}
/* Output CallFrom16 routines needed by this .spec file */
#ifdef __i386__
for ( i = 0; i < nTypes; i++ )
{
char profile[101];
strcpy( profile, get_function_name( typelist[i] ));
BuildCallFrom16Func( outfile, profile, DLLName );
}
#endif
/* Output the DLL functions prototypes */
for (i = 0; i <= Limit; i++)
{
ORDDEF *odp = Ordinals[i];
if (!odp) continue;
switch(odp->type)
{
case TYPE_CDECL:
case TYPE_PASCAL:
case TYPE_PASCAL_16:
fprintf( outfile, "extern void %s();\n", odp->link_name );
break;
default:
break;
}
}
/* Output code segment */
fprintf( outfile, "\n#include \"pshpack1.h\"\n" );
fprintf( outfile, "\nstatic struct code_segment\n{\n" );
fprintf( outfile, " struct {\n" );
#ifdef __i386__
fprintf( outfile, " unsigned char pushl;\n" ); /* pushl $relay */
fprintf( outfile, " void *relay;\n" );
fprintf( outfile, " unsigned char lcall;\n" ); /* lcall __FLATCS__:glue */
fprintf( outfile, " void *glue;\n" );
fprintf( outfile, " unsigned short flatcs;\n" );
#endif
fprintf( outfile, " unsigned short lret;\n" ); /* lret $args */
fprintf( outfile, " unsigned short args;\n" );
fprintf( outfile, " unsigned int arg_types[2];\n" );
fprintf( outfile, " } call[%d];\n", nTypes );
fprintf( outfile, " struct {\n" );
#ifdef __i386__
fprintf( outfile, " unsigned short pushw_bp;\n" ); /* pushw %bp */
fprintf( outfile, " unsigned char pushl;\n" ); /* pushl $target */
#endif
fprintf( outfile, " void (*target)();\n" );
fprintf( outfile, " unsigned short call;\n" ); /* call CALLFROM16 */
fprintf( outfile, " short callfrom16;\n" );
fprintf( outfile, " } entry[%d];\n", nFuncs );
fprintf( outfile, "} code_segment =\n{\n {\n" );
code_offset = 0;
for ( i = 0; i < nTypes; i++ )
{
char profile[101], *arg;
unsigned int arg_types[2];
int j, argsize = 0;
strcpy( profile, get_function_name( typelist[i] ));
if ( typelist[i]->type != TYPE_CDECL )
for ( arg = typelist[i]->u.func.arg_types; *arg; arg++ )
switch ( *arg )
{
case 'w': /* word */
case 's': /* s_word */
argsize += 2;
break;
case 'l': /* long or segmented pointer */
case 'T': /* segmented pointer to null-terminated string */
case 'p': /* linear pointer */
case 't': /* linear pointer to null-terminated string */
argsize += 4;
break;
}
if (typelist[i]->flags & FLAG_INTERRUPT) argsize += 2;
/* build the arg types bit fields */
arg_types[0] = arg_types[1] = 0;
for (j = 0; typelist[i]->u.func.arg_types[j]; j++)
{
int type = 0;
switch(typelist[i]->u.func.arg_types[j])
{
case 'w': type = ARG_WORD; break;
case 's': type = ARG_SWORD; break;
case 'l': type = ARG_LONG; break;
case 'p': type = ARG_PTR; break;
case 't': type = ARG_STR; break;
case 'T': type = ARG_SEGSTR; break;
}
arg_types[j / 10] |= type << (3 * (j % 10));
}
if (typelist[i]->flags & (FLAG_REGISTER|FLAG_INTERRUPT)) arg_types[0] |= ARG_REGISTER;
if (typelist[i]->type == TYPE_PASCAL_16) arg_types[0] |= ARG_RET16;
#ifdef __i386__
fprintf( outfile, " { 0x68, __wine_%s_CallFrom16_%s, 0x9a, __wine_call_from_16_%s,\n",
make_c_identifier(DLLName), profile,
(typelist[i]->flags & (FLAG_REGISTER|FLAG_INTERRUPT)) ? "regs":
typelist[i]->type == TYPE_PASCAL_16? "word" : "long" );
if (argsize)
fprintf( outfile, " 0x%04x, 0xca66, %d, { 0x%08x, 0x%08x } },\n",
code_selector, argsize, arg_types[0], arg_types[1] );
else
fprintf( outfile, " 0x%04x, 0xcb66, 0x9090, { 0x%08x, 0x%08x } },\n",
code_selector, arg_types[0], arg_types[1] );
#else
if (argsize)
fprintf( outfile, " { 0xca66, %d, { 0x%08x, 0x%08x } },\n",
argsize, arg_types[0], arg_types[1] );
else
fprintf( outfile, " { 0xcb66, 0x9090, { 0x%08x, 0x%08x } },\n",
arg_types[0], arg_types[1] );
#endif
code_offset += sizeof(CALLFROM16);
}
fprintf( outfile, " },\n {\n" );
for (i = 0; i <= Limit; i++)
{
ORDDEF *odp = Ordinals[i];
if (!odp) continue;
switch (odp->type)
{
case TYPE_ABS:
odp->offset = LOWORD(odp->u.abs.value);
break;
case TYPE_VARIABLE:
odp->offset = data_offset;
data_offset += StoreVariableCode( data + data_offset, 4, odp);
break;
case TYPE_CDECL:
case TYPE_PASCAL:
case TYPE_PASCAL_16:
case TYPE_STUB:
type = bsearch( &odp, typelist, nTypes, sizeof(ORDDEF *), Spec16TypeCompare );
assert( type );
fprintf( outfile, " /* %s.%d */ ", DLLName, i );
#ifdef __i386__
fprintf( outfile, "{ 0x5566, 0x68, %s, 0xe866, %d /* %s */ },\n",
#else
fprintf( outfile, "{ %s, 0xe866, %d, /* %s */ },\n",
#endif
odp->link_name,
(type-typelist)*sizeof(CALLFROM16) -
(code_offset + sizeof(ENTRYPOINT16)),
get_function_name( odp ) );
odp->offset = code_offset;
code_offset += sizeof(ENTRYPOINT16);
break;
default:
fprintf(stderr,"build: function type %d not available for Win16\n",
odp->type);
exit(1);
}
}
fprintf( outfile, " }\n};\n" );
/* Output data segment */
dump_bytes( outfile, data, data_offset, "Data_Segment", 0 );
/* Build the module */
module_size = BuildModule16( outfile, code_offset, data_offset );
res_size = output_res16_data( outfile );
/* Output the DLL descriptor */
fprintf( outfile, "#include \"poppack.h\"\n\n" );
fprintf( outfile, "static const struct dll_descriptor\n{\n" );
fprintf( outfile, " unsigned char *module_start;\n" );
fprintf( outfile, " int module_size;\n" );
fprintf( outfile, " struct code_segment *code_start;\n" );
fprintf( outfile, " unsigned char *data_start;\n" );
fprintf( outfile, " const char *owner;\n" );
fprintf( outfile, " const unsigned char *rsrc;\n" );
fprintf( outfile, "} descriptor =\n{\n" );
fprintf( outfile, " Module,\n" );
fprintf( outfile, " sizeof(Module),\n" );
fprintf( outfile, " &code_segment,\n" );
fprintf( outfile, " Data_Segment,\n" );
fprintf( outfile, " \"%s\",\n", owner_name );
fprintf( outfile, " %s\n", res_size ? "resource_data" : "0" );
fprintf( outfile, "};\n" );
/* Output the DLL constructor */
fprintf( outfile, "#ifndef __GNUC__\n" );
fprintf( outfile, "static void __asm__dummy_dll_init(void) {\n" );
fprintf( outfile, "#endif /* defined(__GNUC__) */\n" );
#if defined(__i386__)
fprintf( outfile, "asm(\"\\t.section\t.init ,\\\"ax\\\"\\n\"\n" );
fprintf( outfile, " \"\\tcall " PREFIX "__wine_spec_%s_init\\n\"\n",
make_c_identifier(DLLName) );
fprintf( outfile, " \"\\t.previous\\n\");\n" );
#elif defined(__sparc__)
fprintf( outfile, "asm(\"\\t.section\t.init ,\\\"ax\\\"\\n\"\n" );
fprintf( outfile, " \"\\tcall " PREFIX "__wine_spec_%s_init\\n\"\n",
make_c_identifier(DLLName) );
fprintf( outfile, " \"\\tnop\\n\"\n" );
fprintf( outfile, " \"\\t.previous\\n\");\n" );
#elif defined(__PPC__)
fprintf( outfile, "asm(\"\\t.section\t.init ,\\\"ax\\\"\\n\"\n" );
fprintf( outfile, " \"\\tbl " PREFIX "__wine_spec_%s_init\\n\"\n",
make_c_identifier(DLLName) );
fprintf( outfile, " \"\\t.previous\\n\");\n" );
#else
#error You need to define the DLL constructor for your architecture
#endif
fprintf( outfile, "#ifndef __GNUC__\n" );
fprintf( outfile, "}\n" );
fprintf( outfile, "#endif /* defined(__GNUC__) */\n\n" );
fprintf( outfile,
"void __wine_spec_%s_init(void)\n"
"{\n"
" extern void __wine_register_dll_16( const struct dll_descriptor *descr );\n"
" __wine_register_dll_16( &descriptor );\n"
"}\n", make_c_identifier(DLLName) );
}
/*******************************************************************
* BuildGlue
*
* Build the 16-bit-to-Wine/Wine-to-16-bit callback glue code
*/
void BuildGlue( FILE *outfile, FILE *infile )
{
char buffer[1024];
/* File header */
output_file_header( outfile );
#ifdef __i386__
fprintf( outfile, "extern unsigned short __stdcall wine_call_to_16_word( void (*target)(), int args );\n" );
fprintf( outfile, "extern unsigned int __stdcall wine_call_to_16_long( void (*target)(), int args );\n\n" );
#else
fprintf( outfile, "#include <assert.h>\n\n" );
#endif
/* Build the callback glue functions */
while (fgets( buffer, sizeof(buffer), infile ))
{
if (strstr( buffer, "### start build ###" )) break;
}
while (fgets( buffer, sizeof(buffer), infile ))
{
char *p;
if ( (p = strstr( buffer, "CallTo16_" )) != NULL )
{
char *q, *profile = p + strlen( "CallTo16_" );
for (q = profile; (*q == '_') || isalpha(*q); q++ )
;
*q = '\0';
for (q = p-1; q > buffer && ((*q == '_') || isalnum(*q)); q-- )
;
if ( ++q < p ) p[-1] = '\0'; else q = "";
BuildCallTo16Func( outfile, profile, q );
}
if (strstr( buffer, "### stop build ###" )) break;
}
fclose( infile );
}
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