diff options
Diffstat (limited to 'arch/x86/um/shared/sysdep/tls.h')
| -rw-r--r-- | arch/x86/um/shared/sysdep/tls.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/x86/um/shared/sysdep/tls.h b/arch/x86/um/shared/sysdep/tls.h new file mode 100644 index 000000000..b968016aa --- /dev/null +++ b/arch/x86/um/shared/sysdep/tls.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#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 */ |