arch/s390/kernel/compat_ptrace.h

   1 #ifndef _PTRACE32_H
   2 #define _PTRACE32_H
   3
   4 #include <asm/ptrace.h>    /* needed for NUM_CR_WORDS */
   5 #include "compat_linux.h"  /* needed for psw_compat_t */
   6
   7 struct compat_per_struct_kernel {
   8         __u32 cr9;              /* PER control bits */
   9         __u32 cr10;             /* PER starting address */
  10         __u32 cr11;             /* PER ending address */
  11         __u32 bits;             /* Obsolete software bits */
  12         __u32 starting_addr;    /* User specified start address */
  13         __u32 ending_addr;      /* User specified end address */
  14         __u16 perc_atmid;       /* PER trap ATMID */
  15         __u32 address;          /* PER trap instruction address */
  16         __u8  access_id;        /* PER trap access identification */
  17 };
  18
  19 struct compat_user_regs_struct
  20 {
  21         psw_compat_t psw;
  22         u32 gprs[NUM_GPRS];
  23         u32 acrs[NUM_ACRS];
  24         u32 orig_gpr2;
  25         /* nb: there's a 4-byte hole here */
  26         s390_fp_regs fp_regs;
  27         /*
  28          * These per registers are in here so that gdb can modify them
  29          * itself as there is no "official" ptrace interface for hardware
  30          * watchpoints. This is the way intel does it.
  31          */
  32         struct compat_per_struct_kernel per_info;
  33         u32  ieee_instruction_pointer;  /* obsolete, always 0 */
  34 };
  35
  36 struct compat_user {
  37         /* We start with the registers, to mimic the way that "memory"
  38            is returned from the ptrace(3,...) function.  */
  39         struct compat_user_regs_struct regs;
  40         /* The rest of this junk is to help gdb figure out what goes where */
  41         u32 u_tsize;            /* Text segment size (pages). */
  42         u32 u_dsize;            /* Data segment size (pages). */
  43         u32 u_ssize;            /* Stack segment size (pages). */
  44         u32 start_code;         /* Starting virtual address of text. */
  45         u32 start_stack;        /* Starting virtual address of stack area.
  46                                    This is actually the bottom of the stack,
  47                                    the top of the stack is always found in the
  48                                    esp register.  */
  49         s32 signal;              /* Signal that caused the core dump. */
  50         u32 u_ar0;               /* Used by gdb to help find the values for */
  51                                  /* the registers. */
  52         u32 magic;               /* To uniquely identify a core file */
  53         char u_comm[32];         /* User command that was responsible */
  54 };
  55
  56 typedef struct
  57 {
  58         __u32   len;
  59         __u32   kernel_addr;
  60         __u32   process_addr;
  61 } compat_ptrace_area;
  62
  63 #endif /* _PTRACE32_H */