linux/arch/s390/kernel/compat_ptrace.h
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   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
   7struct 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
  19struct 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
  36struct 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
  56typedef struct
  57{
  58        __u32   len;
  59        __u32   kernel_addr;
  60        __u32   process_addr;
  61} compat_ptrace_area;
  62
  63#endif /* _PTRACE32_H */
  64