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no more support for old Mac OS systems

This commit is contained in:
Roberto Ierusalimschy 2010-06-18 14:23:02 -03:00
parent 409741e900
commit bef5980744
1 changed files with 3 additions and 87 deletions
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90
loadlib.c
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@ -1,11 +1,11 @@
/* /*
** $Id: loadlib.c,v 1.83 2010/05/31 16:34:19 roberto Exp roberto $ ** $Id: loadlib.c,v 1.84 2010/06/13 19:36:17 roberto Exp roberto $
** Dynamic library loader for Lua ** Dynamic library loader for Lua
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
** **
** This module contains an implementation of loadlib for Unix systems ** This module contains an implementation of loadlib for Unix systems
** that have dlfcn, an implementation for Darwin (Mac OS X), an ** that have dlfcn, an implementation for Windows, and a stub for other
** implementation for Windows, and a stub for other systems. ** systems.
*/ */
@ -188,90 +188,6 @@ static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
/* }====================================================== */ /* }====================================================== */
#elif defined(LUA_DL_DYLD)
/*
** {======================================================================
** Old native Mac OS X - only for old versions of Mac OS (< 10.3)
** =======================================================================
*/
#include <mach-o/dyld.h>
/* Mac appends a `_' before C function names */
#undef POF
#define POF "_" LUA_POF
static void pusherror (lua_State *L) {
const char *err_str;
const char *err_file;
NSLinkEditErrors err;
int err_num;
NSLinkEditError(&err, &err_num, &err_file, &err_str);
lua_pushstring(L, err_str);
}
static const char *errorfromcode (NSObjectFileImageReturnCode ret) {
switch (ret) {
case NSObjectFileImageInappropriateFile:
return "file is not a bundle";
case NSObjectFileImageArch:
return "library is for wrong CPU type";
case NSObjectFileImageFormat:
return "bad format";
case NSObjectFileImageAccess:
return "cannot access file";
case NSObjectFileImageFailure:
default:
return "unable to load library";
}
}
static void ll_unloadlib (void *lib) {
NSUnLinkModule((NSModule)lib, NSUNLINKMODULE_OPTION_RESET_LAZY_REFERENCES);
}
static void *ll_load (lua_State *L, const char *path, int seeglb) {
NSObjectFileImage img;
NSObjectFileImageReturnCode ret;
/* this would be a rare case, but prevents crashing if it happens */
if(!_dyld_present()) {
lua_pushliteral(L, "dyld not present");
return NULL;
}
ret = NSCreateObjectFileImageFromFile(path, &img);
if (ret == NSObjectFileImageSuccess) {
NSModule mod = NSLinkModule(img,
path,
NSLINKMODULE_OPTION_RETURN_ON_ERROR |
(seeglb ? 0 : NSLINKMODULE_OPTION_PRIVATE));
NSDestroyObjectFileImage(img);
if (mod == NULL) pusherror(L);
return mod;
}
lua_pushstring(L, errorfromcode(ret));
return NULL;
}
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
NSSymbol nss = NSLookupSymbolInModule((NSModule)lib, sym);
if (nss == NULL) {
lua_pushfstring(L, "symbol " LUA_QS " not found", sym);
return NULL;
}
return (lua_CFunction)NSAddressOfSymbol(nss);
}
/* }====================================================== */
#else #else
/* /*
** {====================================================== ** {======================================================