nsz Git - musl/blob - arch/i386/bits/user.h

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