arch/x86/um/shared/sysdep/tls.h

   1 #ifndef _SYSDEP_TLS_H
   2 #define _SYSDEP_TLS_H
   3
   4 # ifndef __KERNEL__
   5
   6 /* Change name to avoid conflicts with the original one from <asm/ldt.h>, which
   7  * may be named user_desc (but in 2.4 and in header matching its API was named
   8  * modify_ldt_ldt_s). */
   9
  10 typedef struct um_dup_user_desc {
  11         unsigned int  entry_number;
  12         unsigned int  base_addr;
  13         unsigned int  limit;
  14         unsigned int  seg_32bit:1;
  15         unsigned int  contents:2;
  16         unsigned int  read_exec_only:1;
  17         unsigned int  limit_in_pages:1;
  18         unsigned int  seg_not_present:1;
  19         unsigned int  useable:1;
  20 #ifdef __x86_64__
  21         unsigned int  lm:1;
  22 #endif
  23 } user_desc_t;
  24
  25 # else /* __KERNEL__ */
  26
  27 typedef struct user_desc user_desc_t;
  28
  29 # endif /* __KERNEL__ */
  30
  31 extern int os_set_thread_area(user_desc_t *info, int pid);
  32 extern int os_get_thread_area(user_desc_t *info, int pid);
  33
  34 #ifdef __i386__
  35 #define GDT_ENTRY_TLS_MIN_I386 6
  36 #define GDT_ENTRY_TLS_MIN_X86_64 12
  37 #endif
  38
  39 #endif /* _SYSDEP_TLS_H */