kernel-ark/arch/x86/um/shared/sysdep/tls.h
Richard Weinberger 298e20ba8c um: Stop abusing __KERNEL__
Currently UML is abusing __KERNEL__ to distinguish between
kernel and host code (os-Linux). It is better to use a custom
define such that existing users of __KERNEL__ don't get confused.

Signed-off-by: Richard Weinberger <richard@nod.at>
2015-05-31 22:05:32 +02:00

40 lines
933 B
C

#ifndef _SYSDEP_TLS_H
#define _SYSDEP_TLS_H
#ifdef __UM_HOST__
/* Change name to avoid conflicts with the original one from <asm/ldt.h>, which
* may be named user_desc (but in 2.4 and in header matching its API was named
* modify_ldt_ldt_s). */
typedef struct um_dup_user_desc {
unsigned int entry_number;
unsigned int base_addr;
unsigned int limit;
unsigned int seg_32bit:1;
unsigned int contents:2;
unsigned int read_exec_only:1;
unsigned int limit_in_pages:1;
unsigned int seg_not_present:1;
unsigned int useable:1;
#ifdef __x86_64__
unsigned int lm:1;
#endif
} user_desc_t;
#else /* __UM_HOST__ */
typedef struct user_desc user_desc_t;
#endif /* __UM_HOST__ */
extern int os_set_thread_area(user_desc_t *info, int pid);
extern int os_get_thread_area(user_desc_t *info, int pid);
#ifdef __i386__
#define GDT_ENTRY_TLS_MIN_I386 6
#define GDT_ENTRY_TLS_MIN_X86_64 12
#endif
#endif /* _SYSDEP_TLS_H */