1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef __ARCH_DESC_H 20 #define __ARCH_DESC_H 21 #include <asm/ldt.h> 22 #include <asm/segment.h> 23 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 24 #ifndef __ASSEMBLY__ 25 #include <linux/preempt.h> 26 #include <linux/smp.h> 27 #include <linux/percpu.h> 28 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 29 #include <asm/mmu.h> 30 struct Xgt_desc_struct { 31 unsigned short size; 32 unsigned long address __attribute__((packed)); 33 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 34 unsigned short pad; 35 } __attribute__ ((packed)); 36 struct gdt_page 37 { 38 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 39 struct desc_struct gdt[GDT_ENTRIES]; 40 } __attribute__((aligned(PAGE_SIZE))); 41 #define DESCTYPE_LDT 0x82 42 #define DESCTYPE_TSS 0x89 43 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 44 #define DESCTYPE_TASK 0x85 45 #define DESCTYPE_INT 0x8e 46 #define DESCTYPE_TRAP 0x8f 47 #define DESCTYPE_DPL3 0x60 48 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 49 #define DESCTYPE_S 0x10 50 #define load_TR_desc() native_load_tr_desc() 51 #define load_gdt(dtr) native_load_gdt(dtr) 52 #define load_idt(dtr) native_load_idt(dtr) 53 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 54 #define load_tr(tr) __asm__ __volatile("ltr %0"::"m" (tr)) 55 #define load_ldt(ldt) __asm__ __volatile("lldt %0"::"m" (ldt)) 56 #define store_gdt(dtr) native_store_gdt(dtr) 57 #define store_idt(dtr) native_store_idt(dtr) 58 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 59 #define store_tr(tr) (tr = native_store_tr()) 60 #define store_ldt(ldt) __asm__ ("sldt %0":"=m" (ldt)) 61 #define load_TLS(t, cpu) native_load_tls(t, cpu) 62 #define set_ldt native_set_ldt 63 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 64 #define write_ldt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b) 65 #define write_gdt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b) 66 #define write_idt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b) 67 #define set_tss_desc(cpu,addr) __set_tss_desc(cpu, GDT_ENTRY_TSS, addr) 68 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 69 #define LDT_entry_a(info) ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff)) 70 #define LDT_entry_b(info) (((info)->base_addr & 0xff000000) | (((info)->base_addr & 0x00ff0000) >> 16) | ((info)->limit & 0xf0000) | (((info)->read_exec_only ^ 1) << 9) | ((info)->contents << 10) | (((info)->seg_not_present ^ 1) << 15) | ((info)->seg_32bit << 22) | ((info)->limit_in_pages << 23) | ((info)->useable << 20) | 0x7000) 71 #define LDT_empty(info) ( (info)->base_addr == 0 && (info)->limit == 0 && (info)->contents == 0 && (info)->read_exec_only == 1 && (info)->seg_32bit == 0 && (info)->limit_in_pages == 0 && (info)->seg_not_present == 1 && (info)->useable == 0 ) 72 #else 73 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 74 #define GET_DESC_BASE(idx, gdt, base, lo_w, lo_b, hi_b) movb idx*8+4(gdt), lo_b; movb idx*8+7(gdt), hi_b; shll $16, base; movw idx*8+2(gdt), lo_w; 75 #endif 76 #endif 77