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libwine: Added LDT support for MacOS/x86.

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This commit is contained in:
Alexandre Julliard 2006-01-23 12:02:58 +01:00
parent 9b1ea63bf9
commit 4d3996d515
1 changed files with 7 additions and 26 deletions
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33
libs/wine/ldt.c
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@ -117,22 +117,8 @@ extern int i386_set_ldt(int, union descriptor *, int);
#endif /* __NetBSD__ || __FreeBSD__ || __OpenBSD__ */
#ifdef __APPLE__
static inline int thread_set_user_ldt( const void *addr, unsigned int size, unsigned int flags )
{
int ret;
__asm__ __volatile__ ("pushl %4\n\t"
"pushl %3\n\t"
"pushl %2\n\t"
"pushl $0\n\t"
"lcall $0x3b,$0\n\t"
"leal 16(%%esp),%%esp"
: "=a" (ret)
: "0" (4 /*thread_set_user_ldt*/), "r" (addr), "r" (size), "r" (flags) );
return ret;
}
#endif /* __APPLE__ */
#include <i386/user_ldt.h>
#endif
#endif /* __i386__ */
@ -242,6 +228,9 @@ static int internal_set_entry( unsigned short sel, const LDT_ENTRY *entry )
ldt_mod.acc2 = entry->HighWord.Bytes.Flags2 >> 4;
if ((ret = sysi86(SI86DSCR, &ldt_mod)) == -1) perror("sysi86");
}
#elif defined(__APPLE__)
if ((ret = i386_set_ldt(index, (union ldt_entry *)entry, 1)) < 0)
perror("i386_set_ldt");
#else
fprintf( stderr, "No LDT support on this platform\n" );
exit(1);
@ -423,11 +412,7 @@ unsigned short wine_ldt_alloc_fs(void)
if (errno != ENOSYS) perror( "set_thread_area" );
}
else global_fs_sel = (ldt_info.entry_number << 3) | 3;
#elif defined(__APPLE__)
int ret = thread_set_user_ldt( NULL, 0, 0 );
if (ret != -1) global_fs_sel = ret;
else global_fs_sel = 0;
#endif /* __APPLE__ */
#endif
}
if (global_fs_sel > 0) return global_fs_sel;
return wine_ldt_alloc_entries( 1 );
@ -453,11 +438,7 @@ void wine_ldt_init_fs( unsigned short sel, const LDT_ENTRY *entry )
ldt_info.entry_number = sel >> 3;
fill_modify_ldt_struct( &ldt_info, entry );
if ((ret = set_thread_area( &ldt_info ) < 0)) perror( "set_thread_area" );
#elif defined(__APPLE__)
int ret = thread_set_user_ldt( wine_ldt_get_base(entry), wine_ldt_get_limit(entry), 0 );
if (ret == -1) perror( "thread_set_user_ldt" );
else assert( ret == global_fs_sel );
#endif /* __APPLE__ */
#endif
}
else /* LDT selector */
{