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db4c45671f
load_dll callback.
182 lines
4.6 KiB
C
182 lines
4.6 KiB
C
/*
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* Win32 builtin functions
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*
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* Copyright 1997 Alexandre Julliard
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*/
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#include "config.h"
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#include <assert.h>
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#include <string.h>
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#include <stdio.h>
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#include <ctype.h>
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#ifdef HAVE_DL_API
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#include <dlfcn.h>
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#endif
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#include <sys/types.h>
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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#include "windef.h"
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#include "wine/winbase16.h"
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#include "wine/library.h"
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#include "elfdll.h"
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#include "global.h"
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#include "neexe.h"
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#include "heap.h"
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#include "main.h"
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#include "winerror.h"
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#include "server.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(module);
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DECLARE_DEBUG_CHANNEL(relay);
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extern void RELAY_SetupDLL( const char *module );
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static HMODULE main_module;
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/***********************************************************************
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* BUILTIN32_dlopen
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*/
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void *BUILTIN32_dlopen( const char *name )
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{
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#ifdef HAVE_DL_API
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void *handle;
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if (!(handle = wine_dll_load( name )))
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{
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LPSTR pErr, p;
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pErr = dlerror();
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p = strchr(pErr, ':');
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if ((p) &&
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(!strncmp(p, ": undefined symbol", 18))) /* undef symbol -> ERR() */
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ERR("failed to load %s: %s\n", name, pErr);
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else /* WARN() for libraries that are supposed to be native */
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WARN("failed to load %s: %s\n", name, pErr );
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}
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return handle;
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#else
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return NULL;
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#endif
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}
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/***********************************************************************
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* BUILTIN32_dlclose
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*/
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int BUILTIN32_dlclose( void *handle )
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{
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#ifdef HAVE_DL_API
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/* FIXME: should unregister descriptors first */
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/* return dlclose( handle ); */
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#endif
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return 0;
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}
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/***********************************************************************
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* load_library
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*
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* Load a library in memory; callback function for wine_dll_register
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*/
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static void load_library( void *base, const char *filename )
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{
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HMODULE module = (HMODULE)base;
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WINE_MODREF *wm;
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if (!base)
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{
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ERR("could not map image for %s\n", filename ? filename : "main exe" );
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return;
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}
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if (!(PE_HEADER(module)->FileHeader.Characteristics & IMAGE_FILE_DLL))
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{
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/* if we already have an executable, ignore this one */
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if (!main_module) main_module = module;
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return; /* don't create the modref here, will be done later on */
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}
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if (GetModuleHandleA( filename ))
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MESSAGE( "Warning: loading builtin %s, but native version already present. Expect trouble.\n", filename );
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/* Create 32-bit MODREF */
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if (!(wm = PE_CreateModule( module, filename, 0, -1, TRUE )))
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{
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ERR( "can't load %s\n", filename );
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SetLastError( ERROR_OUTOFMEMORY );
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return;
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}
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TRACE( "loaded %s %p %x\n", filename, wm, module );
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wm->refCount++; /* we don't support freeing builtin dlls (FIXME)*/
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}
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/***********************************************************************
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* BUILTIN32_LoadLibraryExA
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*
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* Partly copied from the original PE_ version.
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*
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*/
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WINE_MODREF *BUILTIN32_LoadLibraryExA(LPCSTR path, DWORD flags)
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{
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WINE_MODREF *wm;
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char dllname[20], *p;
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LPCSTR name;
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void *handle;
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/* Fix the name in case we have a full path and extension */
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name = path;
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if ((p = strrchr( name, '\\' ))) name = p + 1;
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if ((p = strrchr( name, '/' ))) name = p + 1;
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if (strlen(name) >= sizeof(dllname)-4) goto error;
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strcpy( dllname, name );
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p = strrchr( dllname, '.' );
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if (!p) strcat( dllname, ".dll" );
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if (!(handle = BUILTIN32_dlopen( dllname ))) goto error;
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if (!(wm = MODULE_FindModule( path ))) wm = MODULE_FindModule( dllname );
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if (!wm)
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{
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ERR( "loaded .so but dll %s still not found\n", dllname );
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/* wine_dll_unload( handle );*/
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return NULL;
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}
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wm->dlhandle = handle;
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return wm;
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error:
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SetLastError( ERROR_FILE_NOT_FOUND );
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return NULL;
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}
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/***********************************************************************
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* BUILTIN32_Init
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*
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* Initialize loading callbacks and return HMODULE of main exe.
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* 'main' is the main exe in case if was already loaded from a PE file.
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*/
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HMODULE BUILTIN32_LoadExeModule( HMODULE main )
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{
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main_module = main;
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wine_dll_set_callback( load_library );
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if (!main_module)
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MESSAGE( "No built-in EXE module loaded! Did you create a .spec file?\n" );
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return main_module;
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}
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/***********************************************************************
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* BUILTIN32_RegisterDLL
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*
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* Register a built-in DLL descriptor.
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*/
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void BUILTIN32_RegisterDLL( const IMAGE_NT_HEADERS *header, const char *filename )
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{
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extern void __wine_dll_register( const IMAGE_NT_HEADERS *header, const char *filename );
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__wine_dll_register( header, filename );
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}
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