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Date: Mon, 8 May 2006 14:19:30 -0700

From: Bob Ippolito
Subject: SDL trunk (r2346) and Mac OS X

The current state of the trunk doesn't quite compile on Mac OS X,
I've attached a series of patches that gets it to compile and kills a
few warnings.

sdl-trunk-r2346-dlcompat-warnings.diff:
        The dlcompat thing is just loaded with incorrect type signatures ..
some of them have changed since 10.2 and others are just flat wrong.
This puts it in sync with the latest headers. People on 10.2 will get
the warnings instead of people with new kits.
  • Loading branch information
slouken committed May 9, 2006
1 parent de2da44 commit 1b4e74aa869396e640b233dd0a986440ab831f1e
Showing with 17 additions and 14 deletions.
  1. +17 −14 src/loadso/macosx/SDL_sysloadso.c
@@ -94,6 +94,7 @@ extern "C" {
#define dl_restrict
#endif

#if 0
#ifndef _POSIX_SOURCE
/*
* Structure filled in by dladdr().
@@ -107,6 +108,7 @@ typedef struct SDL_OSX_dl_info {

static int SDL_OSX_dladdr(const void * dl_restrict, SDL_OSX_Dl_info * dl_restrict);
#endif /* ! _POSIX_SOURCE */
#endif /* 0 */

static int SDL_OSX_dlclose(void * handle);
static const char * SDL_OSX_dlerror(void);
@@ -238,9 +240,9 @@ static void *reference(struct dlstatus *dls, int mode);
static void *dlsymIntern(struct dlstatus *dls, const char *symbol, int canSetError);
static struct dlstatus *allocStatus(void);
static struct dlstatus *loadModule(const char *path, const struct stat *sbuf, int mode);
static NSSymbol *search_linked_libs(const struct mach_header *mh, const char *symbol);
static NSSymbol search_linked_libs(const struct mach_header *mh, const char *symbol);
static const char *get_lib_name(const struct mach_header *mh);
static const struct mach_header *get_mach_header_from_NSModule(NSModule * mod);
static const struct mach_header *get_mach_header_from_NSModule(NSModule mod);
static void dlcompat_init_func(void);
static inline void dlcompat_init_check(void);
static inline void dolock(void);
@@ -331,10 +333,10 @@ static const char *get_lib_name(const struct mach_header *mh)
* and finding the one with the same name as the module. There really ought to be
* an api for doing this, would be faster, but there isn't one right now
*/
static const struct mach_header *get_mach_header_from_NSModule(NSModule * mod)
static const struct mach_header *get_mach_header_from_NSModule(NSModule mod)
{
const char *mod_name = NSNameOfModule(mod);
struct mach_header *mh = NULL;
const struct mach_header *mh = NULL;
unsigned long count = _dyld_image_count();
unsigned long i;
debug("Module name: %s", mod_name);
@@ -526,7 +528,7 @@ static int promoteLocalToGlobal(struct dlstatus *dls)
static int (*p) (NSModule module) = 0;
debug("promoting");
if (!p)
_dyld_func_lookup("__dyld_NSMakePrivateModulePublic", (unsigned long *)&p);
_dyld_func_lookup("__dyld_NSMakePrivateModulePublic", (void **)&p);
return (dls->module == MAGIC_DYLIB_MOD) || (p && p(dls->module));
}

@@ -585,12 +587,12 @@ static const struct mach_header *my_find_image(const char *name)
* bother adding the extra dependencies, if the symbols are neither in the loaded image nor
* any of it's direct dependencies, then it probably isn't there.
*/
static NSSymbol *search_linked_libs(const struct mach_header * mh, const char *symbol)
static NSSymbol search_linked_libs(const struct mach_header * mh, const char *symbol)
{
unsigned int n;
struct load_command *lc = 0;
struct mach_header *wh;
NSSymbol *nssym = 0;
NSSymbol nssym = 0;
if (dyld_NSAddImage && dyld_NSIsSymbolNameDefinedInImage && dyld_NSLookupSymbolInImage)
{
lc = (struct load_command *)((char *)mh + sizeof(struct mach_header));
@@ -640,7 +642,7 @@ static inline char *dyld_error_str()

static void *dlsymIntern(struct dlstatus *dls, const char *symbol, int canSetError)
{
NSSymbol *nssym = 0;
NSSymbol nssym = 0;
#ifdef __GCC__
void *caller = __builtin_return_address(1); /* Be *very* careful about inlining */
#else
@@ -899,10 +901,10 @@ inline static void dlcompat_init_check(void)

static void dlcompat_init_func(void)
{
_dyld_func_lookup("__dyld_NSAddImage", (unsigned long *)&dyld_NSAddImage);
_dyld_func_lookup("__dyld_NSAddImage", (void **)&dyld_NSAddImage);
_dyld_func_lookup("__dyld_NSIsSymbolNameDefinedInImage",
(unsigned long *)&dyld_NSIsSymbolNameDefinedInImage);
_dyld_func_lookup("__dyld_NSLookupSymbolInImage", (unsigned long *)&dyld_NSLookupSymbolInImage);
(void **)&dyld_NSIsSymbolNameDefinedInImage);
_dyld_func_lookup("__dyld_NSLookupSymbolInImage", (void **)&dyld_NSLookupSymbolInImage);
if (pthread_mutex_init(&dlcompat_mutex, NULL))
exit(1);
if (pthread_key_create(&dlerror_key, &dlerrorfree))
@@ -1189,9 +1191,9 @@ static const struct mach_header *image_for_address(const void *address)
unsigned long i;
unsigned long j;
unsigned long count = _dyld_image_count();
struct mach_header *mh = 0;
const struct mach_header *mh = 0;
struct load_command *lc = 0;
unsigned long addr = NULL;
unsigned long addr = 0;
for (i = 0; i < count; i++)
{
addr = (unsigned long)address - _dyld_get_image_vmaddr_slide(i);
@@ -1216,6 +1218,7 @@ static const struct mach_header *image_for_address(const void *address)
return mh;
}

#if 0 /* unused */
static int SDL_OSX_dladdr(const void * dl_restrict p, SDL_OSX_Dl_info * dl_restrict info)
{
/*
@@ -1323,7 +1326,7 @@ static int SDL_OSX_dladdr(const void * dl_restrict p, SDL_OSX_Dl_info * dl_restr
dounlock();
return 1;
}

#endif

/*
* Implement the dlfunc() interface, which behaves exactly the same as

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