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loader: Implement setting %gs for amd64.

This commit is contained in:
Maarten Lankhorst 2008-11-25 08:50:37 +01:00 committed by Alexandre Julliard
parent 023c227399
commit 0a393d7eb4
1 changed files with 17 additions and 1 deletions
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18
loader/pthread.c
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@ -48,10 +48,15 @@
static int init_done;
static int nb_threads = 1;
#ifndef __i386__
#if !defined(__i386__) && !defined(__x86_64__)
static pthread_key_t teb_key;
#endif
#if defined(__x86_64__) && defined(__linux__)
#include <asm/prctl.h>
extern int arch_prctl(int func, void *ptr);
#endif
/***********************************************************************
* init_process
*
@ -141,6 +146,13 @@ static void init_current_teb( struct wine_pthread_thread_info *info )
wine_ldt_set_limit( &fs_entry, info->teb_size - 1 );
wine_ldt_set_flags( &fs_entry, WINE_LDT_FLAGS_DATA|WINE_LDT_FLAGS_32BIT );
wine_ldt_init_fs( info->teb_sel, &fs_entry );
#elif defined(__x86_64__)
/* On x86_64, it's in %gs */
# ifdef __linux__
arch_prctl(ARCH_SET_GS, info->teb_base);
# else
# error Please define setting %gs for your architecture
# endif
#else
if (!init_done) /* first thread */
pthread_key_create( &teb_key, NULL );
@ -174,6 +186,10 @@ static void *get_current_teb(void)
void *ret;
__asm__( ".byte 0x64\n\tmovl 0x18,%0" : "=r" (ret) );
return ret;
#elif defined(__x86_64__)
void *ret;
__asm__( ".byte 0x65\n\tmovq 0x30,%0" : "=r" (ret) );
return ret;
#else
return pthread_getspecific( teb_key );
#endif