linux-user/xtensa/target_syscall.h

   1 #ifndef XTENSA_TARGET_SYSCALL_H
   2 #define XTENSA_TARGET_SYSCALL_H
   3
   4 #define UNAME_MACHINE "xtensa"
   5
   6 #define UNAME_MINIMUM_RELEASE "3.19"
   7 #define TARGET_CLONE_BACKWARDS
   8
   9 #define MMAP_SHIFT TARGET_PAGE_BITS
  10
  11 typedef uint32_t xtensa_reg_t;
  12 typedef struct {
  13 } xtregs_opt_t; /* TODO */
  14
  15 struct target_pt_regs {
  16     xtensa_reg_t pc;            /*   4 */
  17     xtensa_reg_t ps;            /*   8 */
  18     xtensa_reg_t depc;          /*  12 */
  19     xtensa_reg_t exccause;      /*  16 */
  20     xtensa_reg_t excvaddr;      /*  20 */
  21     xtensa_reg_t debugcause;    /*  24 */
  22     xtensa_reg_t wmask;         /*  28 */
  23     xtensa_reg_t lbeg;          /*  32 */
  24     xtensa_reg_t lend;          /*  36 */
  25     xtensa_reg_t lcount;        /*  40 */
  26     xtensa_reg_t sar;           /*  44 */
  27     xtensa_reg_t windowbase;    /*  48 */
  28     xtensa_reg_t windowstart;   /*  52 */
  29     xtensa_reg_t syscall;       /*  56 */
  30     xtensa_reg_t icountlevel;   /*  60 */
  31     xtensa_reg_t scompare1;     /*  64 */
  32     xtensa_reg_t threadptr;     /*  68 */
  33
  34     /* Additional configurable registers that are used by the compiler. */
  35     xtregs_opt_t xtregs_opt;
  36
  37     /* Make sure the areg field is 16 bytes aligned. */
  38     int align[0] __attribute__ ((aligned(16)));
  39
  40     /* current register frame.
  41      * Note: The ESF for kernel exceptions ends after 16 registers!
  42      */
  43     xtensa_reg_t areg[16];
  44 };
  45
  46 #define TARGET_MCL_CURRENT 1
  47 #define TARGET_MCL_FUTURE  2
  48 #define TARGET_MCL_ONFAULT 4
  49
  50 #endif