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wine/tools/winebuild/spec32.c

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/*
* 32-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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wine/exception.h"
#include "build.h"
/* check if entry point needs a relay thunk */
static inline int needs_relay( const ORDDEF *odp )
{
/* skip nonexistent entry points */
if (!odp) return 0;
/* skip non-functions */
if ((odp->type != TYPE_STDCALL) && (odp->type != TYPE_CDECL)) return 0;
/* skip norelay and forward entry points */
if (odp->flags & (FLAG_NORELAY|FLAG_FORWARD)) return 0;
return 1;
}
/* check if dll will output relay thunks */
int has_relays( DLLSPEC *spec )
{
unsigned int i;
if (target_cpu != CPU_x86) return 0;
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (needs_relay( odp )) return 1;
}
return 0;
}
/*******************************************************************
* output_relay_debug
*
* Output entry points for relay debugging
*/
static void output_relay_debug( DLLSPEC *spec )
{
unsigned int i, j, args, flags;
/* first the table of entry point offsets */
output( "\t%s\n", get_asm_rodata_section() );
output( "\t.align %d\n", get_alignment(4) );
output( ".L__wine_spec_relay_entry_point_offsets:\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (needs_relay( odp ))
output( "\t.long .L__wine_spec_relay_entry_point_%d-__wine_spec_relay_entry_points\n", i );
else
output( "\t.long 0\n" );
}
/* then the table of argument types */
output( "\t.align %d\n", get_alignment(4) );
output( ".L__wine_spec_relay_arg_types:\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
unsigned int mask = 0;
if (needs_relay( odp ))
{
for (j = 0; j < 16 && odp->u.func.arg_types[j]; j++)
{
if (odp->u.func.arg_types[j] == 't') mask |= 1<< (j*2);
if (odp->u.func.arg_types[j] == 'W') mask |= 2<< (j*2);
}
}
output( "\t.long 0x%08x\n", mask );
}
/* then the relay thunks */
output( "\t.text\n" );
output( "__wine_spec_relay_entry_points:\n" );
output( "\tnop\n" ); /* to avoid 0 offset */
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!needs_relay( odp )) continue;
output( "\t.align %d\n", get_alignment(4) );
output( ".L__wine_spec_relay_entry_point_%d:\n", i );
if (odp->flags & FLAG_REGISTER)
output( "\tpushl %%eax\n" );
else
output( "\tpushl %%esp\n" );
args = strlen(odp->u.func.arg_types);
flags = 0;
if (odp->flags & FLAG_RET64) flags |= 1;
if (odp->type == TYPE_STDCALL) flags |= 2;
output( "\tpushl $%u\n", (flags << 24) | (args << 16) | (i - spec->base) );
if (UsePIC)
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tleal .L__wine_spec_relay_descr-1b(%%eax),%%eax\n" );
}
else output( "\tmovl $.L__wine_spec_relay_descr,%%eax\n" );
output( "\tpushl %%eax\n" );
if (odp->flags & FLAG_REGISTER)
{
output( "\tcall *8(%%eax)\n" );
}
else
{
output( "\tcall *4(%%eax)\n" );
if (odp->type == TYPE_STDCALL)
output( "\tret $%u\n", args * get_ptr_size() );
else
output( "\tret\n" );
}
}
}
/*******************************************************************
* output_exports
*
* Output the export table for a Win32 module.
*/
static void output_exports( DLLSPEC *spec )
{
int i, fwd_size = 0;
int nr_exports = spec->base <= spec->limit ? spec->limit - spec->base + 1 : 0;
if (!nr_exports) return;
output( "\n/* export table */\n\n" );
output( "\t.data\n" );
output( "\t.align %d\n", get_alignment(4) );
output( ".L__wine_spec_exports:\n" );
/* export directory header */
output( "\t.long 0\n" ); /* Characteristics */
output( "\t.long 0\n" ); /* TimeDateStamp */
output( "\t.long 0\n" ); /* MajorVersion/MinorVersion */
output( "\t.long .L__wine_spec_exp_names-.L__wine_spec_rva_base\n" ); /* Name */
output( "\t.long %u\n", spec->base ); /* Base */
output( "\t.long %u\n", nr_exports ); /* NumberOfFunctions */
output( "\t.long %u\n", spec->nb_names ); /* NumberOfNames */
output( "\t.long .L__wine_spec_exports_funcs-.L__wine_spec_rva_base\n" ); /* AddressOfFunctions */
if (spec->nb_names)
{
output( "\t.long .L__wine_spec_exp_name_ptrs-.L__wine_spec_rva_base\n" ); /* AddressOfNames */
output( "\t.long .L__wine_spec_exp_ordinals-.L__wine_spec_rva_base\n" ); /* AddressOfNameOrdinals */
}
else
{
output( "\t.long 0\n" ); /* AddressOfNames */
output( "\t.long 0\n" ); /* AddressOfNameOrdinals */
}
/* output the function pointers */
output( "\n.L__wine_spec_exports_funcs:\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!odp) output( "\t%s 0\n", get_asm_ptr_keyword() );
else switch(odp->type)
{
case TYPE_EXTERN:
case TYPE_STDCALL:
case TYPE_VARARGS:
case TYPE_CDECL:
if (odp->flags & FLAG_FORWARD)
{
output( "\t%s .L__wine_spec_forwards+%u\n", get_asm_ptr_keyword(), fwd_size );
fwd_size += strlen(odp->link_name) + 1;
}
else if (odp->flags & FLAG_EXT_LINK)
{
output( "\t%s %s_%s\n",
get_asm_ptr_keyword(), asm_name("__wine_spec_ext_link"), odp->link_name );
}
else
{
output( "\t%s %s\n", get_asm_ptr_keyword(), asm_name(odp->link_name) );
}
break;
case TYPE_STUB:
output( "\t%s %s\n", get_asm_ptr_keyword(),
asm_name( get_stub_name( odp, spec )) );
break;
default:
assert(0);
}
}
if (spec->nb_names)
{
/* output the function name pointers */
int namepos = strlen(spec->file_name) + 1;
output( "\n.L__wine_spec_exp_name_ptrs:\n" );
for (i = 0; i < spec->nb_names; i++)
{
output( "\t.long .L__wine_spec_exp_names+%u-.L__wine_spec_rva_base\n", namepos );
namepos += strlen(spec->names[i]->name) + 1;
}
/* output the function ordinals */
output( "\n.L__wine_spec_exp_ordinals:\n" );
for (i = 0; i < spec->nb_names; i++)
{
output( "\t%s %d\n",
get_asm_short_keyword(), spec->names[i]->ordinal - spec->base );
}
if (spec->nb_names % 2)
{
output( "\t%s 0\n", get_asm_short_keyword() );
}
}
/* output the export name strings */
output( "\n.L__wine_spec_exp_names:\n" );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec->file_name );
for (i = 0; i < spec->nb_names; i++)
output( "\t%s \"%s\"\n",
get_asm_string_keyword(), spec->names[i]->name );
/* output forward strings */
if (fwd_size)
{
output( "\n.L__wine_spec_forwards:\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (odp && (odp->flags & FLAG_FORWARD))
output( "\t%s \"%s\"\n", get_asm_string_keyword(), odp->link_name );
}
}
output( "\t.align %d\n", get_alignment(get_ptr_size()) );
output( ".L__wine_spec_exports_end:\n" );
/* output relays */
/* we only support relay debugging on i386 */
if (target_cpu != CPU_x86)
{
output( "\t%s 0\n", get_asm_ptr_keyword() );
return;
}
output( ".L__wine_spec_relay_descr:\n" );
output( "\t%s 0xdeb90001\n", get_asm_ptr_keyword() ); /* magic */
output( "\t%s 0,0\n", get_asm_ptr_keyword() ); /* relay funcs */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* private data */
output( "\t%s __wine_spec_relay_entry_points\n", get_asm_ptr_keyword() );
output( "\t%s .L__wine_spec_relay_entry_point_offsets\n", get_asm_ptr_keyword() );
output( "\t%s .L__wine_spec_relay_arg_types\n", get_asm_ptr_keyword() );
output_relay_debug( spec );
}
/*******************************************************************
* output_asm_constructor
*
* Output code for calling a dll constructor.
*/
static void output_asm_constructor( const char *constructor )
{
if (target_platform == PLATFORM_APPLE)
{
/* Mach-O doesn't have an init section */
output( "\n\t.mod_init_func\n" );
output( "\t.align %d\n", get_alignment(4) );
output( "\t.long %s\n", asm_name(constructor) );
}
else
{
output( "\n\t.section \".init\",\"ax\"\n" );
switch(target_cpu)
{
case CPU_x86:
case CPU_x86_64:
output( "\tcall %s\n", asm_name(constructor) );
break;
case CPU_SPARC:
output( "\tcall %s\n", asm_name(constructor) );
output( "\tnop\n" );
break;
case CPU_ALPHA:
output( "\tjsr $26,%s\n", asm_name(constructor) );
break;
case CPU_POWERPC:
output( "\tbl %s\n", asm_name(constructor) );
break;
}
}
}
/*******************************************************************
* BuildSpec32File
*
* Build a Win32 C file from a spec file.
*/
void BuildSpec32File( DLLSPEC *spec )
{
int machine = 0;
unsigned int page_size = get_page_size();
resolve_imports( spec );
output_standard_file_header();
/* Reserve some space for the PE header */
output( "\t.text\n" );
output( "\t.align %d\n", get_alignment(page_size) );
output( "__wine_spec_pe_header:\n" );
if (target_platform == PLATFORM_APPLE)
output( "\t.space 65536\n" );
else
output( "\t.skip 65536\n" );
/* Output the NT header */
output( "\n\t.data\n" );
output( "\t.align %d\n", get_alignment(get_ptr_size()) );
output( "%s\n", asm_globl("__wine_spec_nt_header") );
output( ".L__wine_spec_rva_base:\n" );
output( "\t.long 0x%04x\n", IMAGE_NT_SIGNATURE ); /* Signature */
switch(target_cpu)
{
case CPU_x86: machine = IMAGE_FILE_MACHINE_I386; break;
case CPU_x86_64: machine = IMAGE_FILE_MACHINE_AMD64; break;
case CPU_POWERPC: machine = IMAGE_FILE_MACHINE_POWERPC; break;
case CPU_ALPHA: machine = IMAGE_FILE_MACHINE_ALPHA; break;
case CPU_SPARC: machine = IMAGE_FILE_MACHINE_UNKNOWN; break;
}
output( "\t%s 0x%04x\n", /* Machine */
get_asm_short_keyword(), machine );
output( "\t%s 0\n", /* NumberOfSections */
get_asm_short_keyword() );
output( "\t.long 0\n" ); /* TimeDateStamp */
output( "\t.long 0\n" ); /* PointerToSymbolTable */
output( "\t.long 0\n" ); /* NumberOfSymbols */
output( "\t%s %d\n", /* SizeOfOptionalHeader */
get_asm_short_keyword(),
get_ptr_size() == 8 ? IMAGE_SIZEOF_NT_OPTIONAL64_HEADER : IMAGE_SIZEOF_NT_OPTIONAL32_HEADER );
output( "\t%s 0x%04x\n", /* Characteristics */
get_asm_short_keyword(), spec->characteristics );
output( "\t%s 0x%04x\n", /* Magic */
get_asm_short_keyword(),
get_ptr_size() == 8 ? IMAGE_NT_OPTIONAL_HDR64_MAGIC : IMAGE_NT_OPTIONAL_HDR32_MAGIC );
output( "\t.byte 0\n" ); /* MajorLinkerVersion */
output( "\t.byte 0\n" ); /* MinorLinkerVersion */
output( "\t.long 0\n" ); /* SizeOfCode */
output( "\t.long 0\n" ); /* SizeOfInitializedData */
output( "\t.long 0\n" ); /* SizeOfUninitializedData */
/* note: we expand the AddressOfEntryPoint field on 64-bit by overwriting the BaseOfCode field */
output( "\t%s %s\n", /* AddressOfEntryPoint */
get_asm_ptr_keyword(), asm_name(spec->init_func) );
if (get_ptr_size() == 4)
{
output( "\t.long 0\n" ); /* BaseOfCode */
output( "\t.long 0\n" ); /* BaseOfData */
}
output( "\t%s __wine_spec_pe_header\n", /* ImageBase */
get_asm_ptr_keyword() );
output( "\t.long %u\n", page_size ); /* SectionAlignment */
output( "\t.long %u\n", page_size ); /* FileAlignment */
output( "\t%s 1,0\n", /* Major/MinorOperatingSystemVersion */
get_asm_short_keyword() );
output( "\t%s 0,0\n", /* Major/MinorImageVersion */
get_asm_short_keyword() );
output( "\t%s %u,%u\n", /* Major/MinorSubsystemVersion */
get_asm_short_keyword(), spec->subsystem_major, spec->subsystem_minor );
output( "\t.long 0\n" ); /* Win32VersionValue */
output( "\t.long %s-.L__wine_spec_rva_base\n", /* SizeOfImage */
asm_name("_end") );
output( "\t.long %u\n", page_size ); /* SizeOfHeaders */
output( "\t.long 0\n" ); /* CheckSum */
output( "\t%s 0x%04x\n", /* Subsystem */
get_asm_short_keyword(), spec->subsystem );
output( "\t%s 0x%04x\n", /* DllCharacteristics */
get_asm_short_keyword(), spec->dll_characteristics );
output( "\t%s %u,%u\n", /* SizeOfStackReserve/Commit */
get_asm_ptr_keyword(), (spec->stack_size ? spec->stack_size : 1024) * 1024, page_size );
output( "\t%s %u,%u\n", /* SizeOfHeapReserve/Commit */
get_asm_ptr_keyword(), (spec->heap_size ? spec->heap_size : 1024) * 1024, page_size );
output( "\t.long 0\n" ); /* LoaderFlags */
output( "\t.long 16\n" ); /* NumberOfRvaAndSizes */
if (spec->base <= spec->limit) /* DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT] */
output( "\t.long .L__wine_spec_exports-.L__wine_spec_rva_base,"
".L__wine_spec_exports_end-.L__wine_spec_exports\n" );
else
output( "\t.long 0,0\n" );
if (has_imports()) /* DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT] */
output( "\t.long .L__wine_spec_imports-.L__wine_spec_rva_base,"
".L__wine_spec_imports_end-.L__wine_spec_imports\n" );
else
output( "\t.long 0,0\n" );
if (spec->nb_resources) /* DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE] */
output( "\t.long .L__wine_spec_resources-.L__wine_spec_rva_base,"
".L__wine_spec_resources_end-.L__wine_spec_resources\n" );
else
output( "\t.long 0,0\n" );
output( "\t.long 0,0\n" ); /* DataDirectory[3] */
output( "\t.long 0,0\n" ); /* DataDirectory[4] */
output( "\t.long 0,0\n" ); /* DataDirectory[5] */
output( "\t.long 0,0\n" ); /* DataDirectory[6] */
output( "\t.long 0,0\n" ); /* DataDirectory[7] */
output( "\t.long 0,0\n" ); /* DataDirectory[8] */
output( "\t.long 0,0\n" ); /* DataDirectory[9] */
output( "\t.long 0,0\n" ); /* DataDirectory[10] */
output( "\t.long 0,0\n" ); /* DataDirectory[11] */
output( "\t.long 0,0\n" ); /* DataDirectory[12] */
output( "\t.long 0,0\n" ); /* DataDirectory[13] */
output( "\t.long 0,0\n" ); /* DataDirectory[14] */
output( "\t.long 0,0\n" ); /* DataDirectory[15] */
output( "\n\t%s\n", get_asm_string_section() );
output( "%s\n", asm_globl("__wine_spec_file_name") );
output( ".L__wine_spec_file_name:\n" );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec->file_name );
if (target_platform == PLATFORM_APPLE)
output( "\t.lcomm %s,4\n", asm_name("_end") );
output_stubs( spec );
output_exports( spec );
output_imports( spec );
output_resources( spec );
output_asm_constructor( "__wine_spec_init_ctor" );
output_gnu_stack_note();
}
/*******************************************************************
* BuildDef32File
*
* Build a Win32 def file from a spec file.
*/
void BuildDef32File( DLLSPEC *spec )
{
const char *name;
int i, total;
if (spec_file_name)
output( "; File generated automatically from %s; do not edit!\n\n",
spec_file_name );
else
output( "; File generated automatically; do not edit!\n\n" );
output( "LIBRARY %s\n\n", spec->file_name);
output( "EXPORTS\n");
/* Output the exports and relay entry points */
for (i = total = 0; i < spec->nb_entry_points; i++)
{
const ORDDEF *odp = &spec->entry_points[i];
int is_data = 0;
if (!odp) continue;
if (odp->name) name = odp->name;
else if (odp->export_name) name = odp->export_name;
else continue;
if (!(odp->flags & FLAG_PRIVATE)) total++;
if (odp->type == TYPE_STUB) continue;
output( " %s", name );
switch(odp->type)
{
case TYPE_EXTERN:
is_data = 1;
/* fall through */
case TYPE_VARARGS:
case TYPE_CDECL:
/* try to reduce output */
if(strcmp(name, odp->link_name) || (odp->flags & FLAG_FORWARD))
output( "=%s", odp->link_name );
break;
case TYPE_STDCALL:
{
int at_param = strlen(odp->u.func.arg_types) * get_ptr_size();
if (!kill_at) output( "@%d", at_param );
if (odp->flags & FLAG_FORWARD)
{
output( "=%s", odp->link_name );
}
else if (strcmp(name, odp->link_name)) /* try to reduce output */
{
output( "=%s", odp->link_name );
if (!kill_at) output( "@%d", at_param );
}
break;
}
default:
assert(0);
}
output( " @%d", odp->ordinal );
if (!odp->name) output( " NONAME" );
if (is_data) output( " DATA" );
if (odp->flags & FLAG_PRIVATE) output( " PRIVATE" );
output( "\n" );
}
if (!total) warning( "%s: Import library doesn't export anything\n", spec->file_name );
}
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