Sweden-Number/relay32/builtin32.c

631 lines
20 KiB
C

/*
* Win32 builtin functions
*
* Copyright 1997 Alexandre Julliard
*/
#include "config.h"
#include <assert.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#ifdef HAVE_DL_API
#include <dlfcn.h>
#endif
#include "windef.h"
#include "wingdi.h"
#include "winuser.h"
#include "builtin32.h"
#include "elfdll.h"
#include "neexe.h"
#include "heap.h"
#include "main.h"
#include "snoop.h"
#include "winerror.h"
#include "server.h"
#include "debugtools.h"
#include "options.h" /* for argv0 */
DEFAULT_DEBUG_CHANNEL(module);
DECLARE_DEBUG_CHANNEL(relay);
typedef struct
{
BYTE call; /* 0xe8 call callfrom32 (relative) */
DWORD callfrom32 WINE_PACKED; /* RELAY_CallFrom32 relative addr */
BYTE ret; /* 0xc2 ret $n or 0xc3 ret */
WORD args; /* nb of args to remove from the stack */
} DEBUG_ENTRY_POINT;
typedef struct
{
const BYTE *restab;
const DWORD nresources;
const DWORD restabsize;
const IMAGE_RESOURCE_DATA_ENTRY *entries;
} BUILTIN32_RESOURCE;
#define MAX_DLLS 60
static const BUILTIN32_DESCRIPTOR *builtin_dlls[MAX_DLLS];
static HMODULE dll_modules[MAX_DLLS];
static int nb_dlls;
extern void RELAY_CallFrom32();
extern void RELAY_CallFrom32Regs();
/***********************************************************************
* BUILTIN32_WarnSecondInstance
*
* Emit a warning when we are creating a second instance for a DLL
* that is known to not support this.
*/
static void BUILTIN32_WarnSecondInstance( const char *name )
{
static const char * const warning_list[] =
{ "comctl32", "comdlg32", "crtdll", "imagehlp", "msacm32", "shell32", NULL };
const char * const *ptr = warning_list;
while (*ptr)
{
if (!strcasecmp( *ptr, name ))
{
ERR( "Attempt to instantiate built-in dll '%s' twice "
"in the same address space. Expect trouble!\n", name );
return;
}
ptr++;
}
}
/***********************************************************************
* BUILTIN32_dlopen
*/
void *BUILTIN32_dlopen( const char *name )
{
#ifdef HAVE_DL_API
void *handle;
char buffer[128], *p;
if ((p = strrchr( name, '/' ))) name = p + 1;
if ((p = strrchr( name, '\\' ))) name = p + 1;
sprintf( buffer, "lib%s", name );
for (p = buffer; *p; p++) *p = tolower(*p);
if ((p = strrchr( buffer, '.' )) && (!strcmp( p, ".dll" ) || !strcmp( p, ".exe" ))) *p = 0;
strcat( buffer, ".so" );
if (!(handle = ELFDLL_dlopen( buffer, RTLD_NOW )))
ERR( "failed to load %s: %s\n", buffer, dlerror() );
return handle;
#else
return NULL;
#endif
}
/***********************************************************************
* BUILTIN32_dlclose
*/
int BUILTIN32_dlclose( void *handle )
{
#ifdef HAVE_DL_API
return dlclose( handle );
#endif
}
/***********************************************************************
* BUILTIN32_DoLoadImage
*
* Load a built-in Win32 module. Helper function for BUILTIN32_LoadImage.
*/
static HMODULE BUILTIN32_DoLoadImage( const BUILTIN32_DESCRIPTOR *descr )
{
IMAGE_DATA_DIRECTORY *dir;
IMAGE_DOS_HEADER *dos;
IMAGE_NT_HEADERS *nt;
IMAGE_SECTION_HEADER *sec;
IMAGE_EXPORT_DIRECTORY *exp;
IMAGE_IMPORT_DESCRIPTOR *imp;
const BUILTIN32_RESOURCE *rsrc = descr->rsrc;
LPVOID *funcs;
LPSTR *names;
LPSTR pfwd, rtab;
DEBUG_ENTRY_POINT *debug;
INT i, size, nb_sections;
BYTE *addr;
BYTE* xcnlnk;
DWORD xcnsize = 0;
/* Allocate the module */
nb_sections = 2; /* exports + code */
if (descr->nb_imports) nb_sections++;
if (!strcmp(descr->name, "KERNEL32")) {
nb_sections++;
xcnsize = sizeof(DWORD);
}
size = (sizeof(IMAGE_DOS_HEADER)
+ sizeof(IMAGE_NT_HEADERS)
+ nb_sections * sizeof(IMAGE_SECTION_HEADER)
+ (descr->nb_imports+1) * sizeof(IMAGE_IMPORT_DESCRIPTOR)
+ sizeof(IMAGE_EXPORT_DIRECTORY)
+ descr->nb_funcs * sizeof(LPVOID)
+ descr->nb_names * sizeof(LPSTR)
+ descr->fwd_size
+ xcnsize);
#ifdef __i386__
if (WARN_ON(relay) || TRACE_ON(relay))
size += descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
#endif
if (rsrc) size += rsrc->restabsize;
addr = VirtualAlloc( NULL, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE );
if (!addr) return 0;
dos = (IMAGE_DOS_HEADER *)addr;
nt = (IMAGE_NT_HEADERS *)(dos + 1);
sec = (IMAGE_SECTION_HEADER *)(nt + 1);
imp = (IMAGE_IMPORT_DESCRIPTOR *)(sec + nb_sections);
exp = (IMAGE_EXPORT_DIRECTORY *)(imp + descr->nb_imports + 1);
funcs = (LPVOID *)(exp + 1);
names = (LPSTR *)(funcs + descr->nb_funcs);
pfwd = (LPSTR)(names + descr->nb_names);
xcnlnk= pfwd + descr->fwd_size;
rtab = xcnlnk + xcnsize;
debug = (DEBUG_ENTRY_POINT *)(rtab + (rsrc ? rsrc->restabsize : 0));
/* Build the DOS and NT headers */
dos->e_magic = IMAGE_DOS_SIGNATURE;
dos->e_lfanew = sizeof(*dos);
nt->Signature = IMAGE_NT_SIGNATURE;
nt->FileHeader.Machine = IMAGE_FILE_MACHINE_I386;
nt->FileHeader.NumberOfSections = nb_sections;
nt->FileHeader.SizeOfOptionalHeader = sizeof(nt->OptionalHeader);
nt->FileHeader.Characteristics = descr->characteristics;
nt->OptionalHeader.Magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
nt->OptionalHeader.SizeOfCode = 0x1000;
nt->OptionalHeader.SizeOfInitializedData = 0;
nt->OptionalHeader.SizeOfUninitializedData = 0;
nt->OptionalHeader.ImageBase = (DWORD)addr;
nt->OptionalHeader.SectionAlignment = 0x1000;
nt->OptionalHeader.FileAlignment = 0x1000;
nt->OptionalHeader.MajorOperatingSystemVersion = 1;
nt->OptionalHeader.MinorOperatingSystemVersion = 0;
nt->OptionalHeader.MajorSubsystemVersion = 4;
nt->OptionalHeader.MinorSubsystemVersion = 0;
nt->OptionalHeader.SizeOfImage = size;
nt->OptionalHeader.SizeOfHeaders = (BYTE *)exp - addr;
nt->OptionalHeader.NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES;
if (descr->dllentrypoint)
nt->OptionalHeader.AddressOfEntryPoint = (DWORD)descr->dllentrypoint - (DWORD)addr;
/* Build the code section */
strcpy( sec->Name, ".code" );
sec->SizeOfRawData = 0;
#ifdef __i386__
if (WARN_ON(relay) || TRACE_ON(relay))
sec->SizeOfRawData += descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
#endif
sec->Misc.VirtualSize = sec->SizeOfRawData;
sec->VirtualAddress = (BYTE *)debug - addr;
sec->PointerToRawData = (BYTE *)debug - addr;
sec->Characteristics = (IMAGE_SCN_CNT_INITIALIZED_DATA |
IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ);
sec++;
/* Build the import directory */
if (descr->nb_imports)
{
dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_IMPORT_DIRECTORY];
dir->VirtualAddress = (BYTE *)imp - addr;
dir->Size = sizeof(*imp) * (descr->nb_imports + 1);
/* Build the imports section */
strcpy( sec->Name, ".idata" );
sec->Misc.VirtualSize = dir->Size;
sec->VirtualAddress = (BYTE *)imp - addr;
sec->SizeOfRawData = dir->Size;
sec->PointerToRawData = (BYTE *)imp - addr;
sec->Characteristics = (IMAGE_SCN_CNT_INITIALIZED_DATA |
IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ |
IMAGE_SCN_MEM_WRITE);
sec++;
/* Build the imports */
for (i = 0; i < descr->nb_imports; i++)
{
imp[i].u.Characteristics = 0;
imp[i].ForwarderChain = -1;
imp[i].Name = (BYTE *)descr->imports[i] - addr;
/* hack: make first thunk point to some zero value */
imp[i].FirstThunk = (PIMAGE_THUNK_DATA)((BYTE *)&imp[i].u.Characteristics - addr);
}
}
/* Build the export directory */
dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY];
dir->VirtualAddress = (BYTE *)exp - addr;
dir->Size = sizeof(*exp)
+ descr->nb_funcs * sizeof(LPVOID)
+ descr->nb_names * sizeof(LPSTR)
+ descr->fwd_size;
/* Build the exports section */
strcpy( sec->Name, ".edata" );
sec->Misc.VirtualSize = dir->Size;
sec->VirtualAddress = (BYTE *)exp - addr;
sec->SizeOfRawData = dir->Size;
sec->PointerToRawData = (BYTE *)exp - addr;
sec->Characteristics = (IMAGE_SCN_CNT_INITIALIZED_DATA |
IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ |
IMAGE_SCN_MEM_WRITE);
/* Build Wine's .so link section. Those sections are used by the wine debugger to
* link a builtin PE header with the corresponding ELF module (from either a
* shared library, or the main executable - wine emulator or any winelib program
*/
if (xcnsize)
{
sec++;
strcpy( sec->Name, ".xcnlnk" );
sec->Misc.VirtualSize = xcnsize;
sec->VirtualAddress = (BYTE *)xcnlnk - addr;
sec->SizeOfRawData = sec->Misc.VirtualSize;
sec->PointerToRawData = (BYTE *)xcnlnk - addr;
sec->Characteristics = (IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ);
*(const char**)xcnlnk = argv0;
}
/* Build the resource directory */
if (rsrc)
{
IMAGE_RESOURCE_DATA_ENTRY *rdep;
/*
* The resource directory has to be copied because it contains
* RVAs. These would be invalid if the dll is instantiated twice.
*/
memcpy(rtab, rsrc->restab, rsrc->restabsize);
dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_RESOURCE_DIRECTORY];
dir->VirtualAddress = (BYTE *)rtab - addr;
dir->Size = rsrc->restabsize;
rdep = (IMAGE_RESOURCE_DATA_ENTRY *)((DWORD)rtab + (DWORD)rsrc->entries - (DWORD)rsrc->restab);
for(i = 0; i < rsrc->nresources; i++)
{
rdep[i].OffsetToData += (DWORD)rsrc->restab - (DWORD)addr;
}
}
/* Build the exports section data */
exp->Name = ((BYTE *)descr->name) - addr; /*??*/
exp->Base = descr->base;
exp->NumberOfFunctions = descr->nb_funcs;
exp->NumberOfNames = descr->nb_names;
exp->AddressOfFunctions = (LPDWORD *)((BYTE *)funcs - addr);
exp->AddressOfNames = (LPDWORD *)((BYTE *)names - addr);
exp->AddressOfNameOrdinals = (LPWORD *)((BYTE *)descr->ordinals - addr);
/* Build the funcs table */
for (i = 0; i < descr->nb_funcs; i++, funcs++, debug++)
{
BYTE args = descr->args[i];
int j;
if (!descr->functions[i]) continue;
if (args == 0xfd) /* forward func */
{
strcpy( pfwd, (LPSTR)descr->functions[i] );
*funcs = (LPVOID)((BYTE *)pfwd - addr);
pfwd += strlen(pfwd) + 1;
}
else *funcs = (LPVOID)((BYTE *)descr->functions[i] - addr);
#ifdef __i386__
if (!(WARN_ON(relay) || TRACE_ON(relay))) continue;
for (j=0;j<descr->nb_names;j++)
if (descr->ordinals[j] == i)
break;
if (j<descr->nb_names) {
if (descr->names[j]) {
char buffer[200];
sprintf(buffer,"%s.%d: %s",descr->name,i,descr->names[j]);
if (!RELAY_ShowDebugmsgRelay(buffer))
continue;
}
}
switch(args)
{
case 0xfd: /* forward */
case 0xff: /* stub or extern */
break;
default: /* normal function (stdcall or cdecl or register) */
if (TRACE_ON(relay)) {
debug->call = 0xe8; /* lcall relative */
if (args & 0x40) /* register func */
debug->callfrom32 = (DWORD)RELAY_CallFrom32Regs -
(DWORD)&debug->ret;
else
debug->callfrom32 = (DWORD)RELAY_CallFrom32 -
(DWORD)&debug->ret;
} else {
debug->call = 0xe9; /* ljmp relative */
debug->callfrom32 = (DWORD)descr->functions[i] -
(DWORD)&debug->ret;
}
debug->ret = (args & 0x80) ? 0xc3 : 0xc2; /*ret/ret $n*/
debug->args = (args & 0x3f) * sizeof(int);
*funcs = (LPVOID)((BYTE *)debug - addr);
break;
}
#endif /* __i386__ */
}
/* Build the names table */
for (i = 0; i < exp->NumberOfNames; i++, names++)
if (descr->names[i])
*names = (LPSTR)((BYTE *)descr->names[i] - addr);
return (HMODULE)addr;
}
/***********************************************************************
* BUILTIN32_LoadLibraryExA
*
* Partly copied from the original PE_ version.
*
*/
WINE_MODREF *BUILTIN32_LoadLibraryExA(LPCSTR path, DWORD flags)
{
struct load_dll_request *req = get_req_buffer();
HMODULE16 hModule16;
NE_MODULE *pModule;
WINE_MODREF *wm;
char dllname[MAX_PATH], *p;
void *handle;
int i;
/* Fix the name in case we have a full path and extension */
if ((p = strrchr( path, '\\' ))) path = p + 1;
lstrcpynA( dllname, path, sizeof(dllname) );
p = strrchr( dllname, '.' );
if (!p) strcat( dllname, ".dll" );
/* Search built-in descriptor */
for (i = 0; i < nb_dlls; i++)
if (!strcasecmp( builtin_dlls[i]->filename, dllname )) goto found;
if ((handle = BUILTIN32_dlopen( dllname )))
{
for (i = 0; i < nb_dlls; i++)
if (!strcasecmp( builtin_dlls[i]->filename, dllname )) goto found;
ERR( "loaded .so but dll %s still not found\n", dllname );
BUILTIN32_dlclose( handle );
}
SetLastError( ERROR_FILE_NOT_FOUND );
return NULL;
found:
/* Load built-in module */
if (!dll_modules[i])
{
if (!(dll_modules[i] = BUILTIN32_DoLoadImage( builtin_dlls[i] ))) return NULL;
}
else BUILTIN32_WarnSecondInstance( builtin_dlls[i]->name );
/* Create 16-bit dummy module */
if ((hModule16 = MODULE_CreateDummyModule( dllname, dll_modules[i] )) < 32)
{
SetLastError( (DWORD)hModule16 );
return NULL; /* FIXME: Should unload the builtin module */
}
pModule = (NE_MODULE *)GlobalLock16( hModule16 );
pModule->flags = NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA | NE_FFLAGS_WIN32 | NE_FFLAGS_BUILTIN;
/* Create 32-bit MODREF */
if ( !(wm = PE_CreateModule( pModule->module32, dllname, flags, TRUE )) )
{
ERR( "can't load %s\n", path );
FreeLibrary16( hModule16 ); /* FIXME: Should unload the builtin module */
SetLastError( ERROR_OUTOFMEMORY );
return NULL;
}
if (wm->binfmt.pe.pe_export)
SNOOP_RegisterDLL(wm->module,wm->modname,wm->binfmt.pe.pe_export->NumberOfFunctions);
req->handle = -1;
req->base = (void *)pModule->module32;
req->dbg_offset = 0;
req->dbg_size = 0;
req->name = &wm->modname;
server_call_noerr( REQ_LOAD_DLL );
return wm;
}
/***********************************************************************
* BUILTIN32_LoadExeModule
*/
HMODULE BUILTIN32_LoadExeModule( LPCSTR *filename )
{
int i, exe = -1;
/* Search built-in EXE descriptor */
for ( i = 0; i < nb_dlls; i++ )
if ( !(builtin_dlls[i]->characteristics & IMAGE_FILE_DLL) )
{
if ( exe != -1 )
{
MESSAGE( "More than one built-in EXE module loaded!\n" );
break;
}
exe = i;
}
if ( exe == -1 )
{
MESSAGE( "No built-in EXE module loaded! Did you create a .spec file?\n" );
return 0;
}
/* Load built-in module */
if ( !dll_modules[exe] )
if ( !(dll_modules[exe] = BUILTIN32_DoLoadImage( builtin_dlls[exe] )) )
return 0;
*filename = builtin_dlls[exe]->filename;
return dll_modules[exe];
}
/***********************************************************************
* BUILTIN32_UnloadLibrary
*
* Unload the built-in library and free the modref.
*/
void BUILTIN32_UnloadLibrary(WINE_MODREF *wm)
{
/* FIXME: do something here */
}
/***********************************************************************
* BUILTIN32_GetEntryPoint
*
* Return the name of the DLL entry point corresponding
* to a relay entry point address. This is used only by relay debugging.
*
* This function _must_ return the real entry point to call
* after the debug info is printed.
*/
ENTRYPOINT32 BUILTIN32_GetEntryPoint( char *buffer, void *relay,
unsigned int *typemask )
{
const BUILTIN32_DESCRIPTOR *descr = NULL;
int ordinal = 0, i;
/* First find the module */
for (i = 0; i < nb_dlls; i++)
if (dll_modules[i])
{
IMAGE_SECTION_HEADER *sec = PE_SECTIONS(dll_modules[i]);
DEBUG_ENTRY_POINT *debug =
(DEBUG_ENTRY_POINT *)((DWORD)dll_modules[i] + sec[0].VirtualAddress);
DEBUG_ENTRY_POINT *func = (DEBUG_ENTRY_POINT *)relay;
descr = builtin_dlls[i];
if (debug <= func && func < debug + descr->nb_funcs)
{
ordinal = func - debug;
break;
}
}
if (!descr) return NULL;
/* Now find the function */
for (i = 0; i < descr->nb_names; i++)
if (descr->ordinals[i] == ordinal) break;
sprintf( buffer, "%s.%d: %s", descr->name, ordinal + descr->base,
(i < descr->nb_names) ? descr->names[i] : "@" );
*typemask = descr->argtypes[ordinal];
return descr->functions[ordinal];
}
/***********************************************************************
* BUILTIN32_SwitchRelayDebug
*
* FIXME: enhance to do it module relative.
*/
void BUILTIN32_SwitchRelayDebug(BOOL onoff)
{
const BUILTIN32_DESCRIPTOR *descr;
IMAGE_SECTION_HEADER *sec;
DEBUG_ENTRY_POINT *debug;
int i, j;
#ifdef __i386__
if (!(TRACE_ON(relay) || WARN_ON(relay)))
return;
for (j = 0; j < nb_dlls; j++)
{
if (!dll_modules[j]) continue;
sec = PE_SECTIONS(dll_modules[j]);
debug = (DEBUG_ENTRY_POINT *)((DWORD)dll_modules[j] + sec[1].VirtualAddress);
descr = builtin_dlls[j];
for (i = 0; i < descr->nb_funcs; i++,debug++) {
if (!descr->functions[i]) continue;
if ((descr->args[i]==0xff) || (descr->args[i]==0xfe))
continue;
if (onoff) {
debug->call = 0xe8; /* lcall relative */
debug->callfrom32 = (DWORD)RELAY_CallFrom32 -
(DWORD)&debug->ret;
} else {
debug->call = 0xe9; /* ljmp relative */
debug->callfrom32 = (DWORD)descr->functions[i] -
(DWORD)&debug->ret;
}
}
}
#endif /* __i386__ */
return;
}
/***********************************************************************
* BUILTIN32_RegisterDLL
*
* Register a built-in DLL descriptor.
*/
void BUILTIN32_RegisterDLL( const BUILTIN32_DESCRIPTOR *descr )
{
assert( nb_dlls < MAX_DLLS );
builtin_dlls[nb_dlls++] = descr;
}
/***********************************************************************
* BUILTIN32_Unimplemented
*
* This function is called for unimplemented 32-bit entry points (declared
* as 'stub' in the spec file).
*/
void BUILTIN32_Unimplemented( const BUILTIN32_DESCRIPTOR *descr, int ordinal )
{
const char *func_name = "???";
int i;
__RESTORE_ES; /* Just in case */
for (i = 0; i < descr->nb_names; i++)
if (descr->ordinals[i] + descr->base == ordinal) break;
if (i < descr->nb_names) func_name = descr->names[i];
MESSAGE( "No handler for Win32 routine %s.%d: %s",
descr->name, ordinal, func_name );
#ifdef __GNUC__
MESSAGE( " (called from %p)", __builtin_return_address(1) );
#endif
MESSAGE( "\n" );
ExitProcess(1);
}