struct user_desc ldt_entry = {
1, 0, 0, /* index, address, length filled in later */
1, MODIFY_LDT_CONTENTS_DATA, 0, 0, 0, 1
};
int n;
struct user_desc ldt_entry = {
1, 0, 0, /* index, address, length filled in later */
1, MODIFY_LDT_CONTENTS_DATA, 0, 0, 0, 1
};
int n;
n=modify_ldt(0,local_ldt_copy,sizeof local_ldt_copy);
/* get next free ldt entry */
n=modify_ldt(0,local_ldt_copy,sizeof local_ldt_copy);
/* get next free ldt entry */
ldt_entry.limit=dynamic_values_bytes;
ldt_entry.limit_in_pages=0;
if (modify_ldt (1, &ldt_entry, sizeof (ldt_entry)) != 0) {
ldt_entry.limit=dynamic_values_bytes;
ldt_entry.limit_in_pages=0;
if (modify_ldt (1, &ldt_entry, sizeof (ldt_entry)) != 0) {
}
__asm__ __volatile__ ("movw %w0, %%fs" : : "q"
((n << 3) /* selector number */
+ (1 << 2) /* TI set = LDT */
+ 3)); /* privilege level */
thread->tls_cookie=n;
}
__asm__ __volatile__ ("movw %w0, %%fs" : : "q"
((n << 3) /* selector number */
+ (1 << 2) /* TI set = LDT */
+ 3)); /* privilege level */
thread->tls_cookie=n;
#ifdef LISP_FEATURE_C_STACK_IS_CONTROL_STACK
/* Signal handlers are run on the control stack, so if it is exhausted
* we had better use an alternate stack for whatever signal tells us
#ifdef LISP_FEATURE_C_STACK_IS_CONTROL_STACK
/* Signal handlers are run on the control stack, so if it is exhausted
* we had better use an alternate stack for whatever signal tells us
0, 0, 0,
0, MODIFY_LDT_CONTENTS_DATA, 0, 0, 0, 0
};
0, 0, 0,
0, MODIFY_LDT_CONTENTS_DATA, 0, 0, 0, 0
};
- get_spinlock(&modify_ldt_lock,(long)thread);
- if (modify_ldt (1, &ldt_entry, sizeof (ldt_entry)) != 0) {
- modify_ldt_lock=0;
- /* modify_ldt call failed: something magical is not happening */
- return 0;
- }
- modify_ldt_lock=0;
- return 1;
+ thread_mutex_lock(&modify_ldt_lock);
+ result = modify_ldt(1, &ldt_entry, sizeof (ldt_entry));
+ thread_mutex_unlock(&modify_ldt_lock);
+ return result;