arch/i386/bits/user.h

   1 #undef __WORDSIZE
   2 #define __WORDSIZE 32
   3
   4 typedef struct user_fpregs_struct {
   5         long cwd, swd, twd, fip, fcs, foo, fos, st_space[20];
   6 } elf_fpregset_t;
   7
   8 typedef struct user_fpxregs_struct {
   9         unsigned short cwd, swd, twd, fop;
  10         long fip, fcs, foo, fos, mxcsr, reserved;
  11         long st_space[32], xmm_space[32], padding[56];
  12 } elf_fpxregset_t;
  13
  14 struct user_regs_struct {
  15         long ebx, ecx, edx, esi, edi, ebp, eax, xds, xes, xfs, xgs;
  16         long orig_eax, eip, xcs, eflags, esp, xss;
  17 };
  18
  19 #define ELF_NGREG 17
  20 typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG];
  21
  22 struct user {
  23         struct user_regs_struct         regs;
  24         int                             u_fpvalid;
  25         struct user_fpregs_struct       i387;
  26         unsigned long                   u_tsize;
  27         unsigned long                   u_dsize;
  28         unsigned long                   u_ssize;
  29         unsigned long                   start_code;
  30         unsigned long                   start_stack;
  31         long                            signal;
  32         int                             reserved;
  33         struct user_regs_struct         *u_ar0;
  34         struct user_fpregs_struct       *u_fpstate;
  35         unsigned long                   magic;
  36         char                            u_comm[32];
  37         int                             u_debugreg[8];
  38 };
  39
  40 #define PAGE_MASK               (~(PAGE_SIZE-1))
  41 #define NBPG                    PAGE_SIZE
  42 #define UPAGES                  1
  43 #define HOST_TEXT_START_ADDR    (u.start_code)
  44 #define HOST_STACK_END_ADDR     (u.start_stack + u.u_ssize * NBPG)