compat_ptrace.h

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#ifndef _PTRACE32_H
#define _PTRACE32_H

#include <asm/ptrace.h>    /* needed for NUM_CR_WORDS */
#include "compat_linux.h"  /* needed for psw_compat_t */

struct compat_per_struct_kernel {
    __u32 cr9;      /* PER control bits */
    __u32 cr10;     /* PER starting address */
    __u32 cr11;     /* PER ending address */
    __u32 bits;     /* Obsolete software bits */
    __u32 starting_addr;    /* User specified start address */
    __u32 ending_addr;  /* User specified end address */
    __u16 perc_atmid;   /* PER trap ATMID */
    __u32 address;      /* PER trap instruction address */
    __u8  access_id;    /* PER trap access identification */
};

struct compat_user_regs_struct
{
    psw_compat_t psw;
    u32 gprs[NUM_GPRS];
    u32 acrs[NUM_ACRS];
    u32 orig_gpr2;
    /* nb: there's a 4-byte hole here */
    s390_fp_regs fp_regs;
    /*
     * These per registers are in here so that gdb can modify them
     * itself as there is no "official" ptrace interface for hardware
     * watchpoints. This is the way intel does it.
     */
    struct compat_per_struct_kernel per_info;
    u32  ieee_instruction_pointer;  /* obsolete, always 0 */
};

struct compat_user {
    /* We start with the registers, to mimic the way that "memory"
       is returned from the ptrace(3,...) function.  */
    struct compat_user_regs_struct regs;
    /* The rest of this junk is to help gdb figure out what goes where */
    u32 u_tsize;        /* Text segment size (pages). */
    u32 u_dsize;            /* Data segment size (pages). */
    u32 u_ssize;            /* Stack segment size (pages). */
    u32 start_code;         /* Starting virtual address of text. */
    u32 start_stack;    /* Starting virtual address of stack area.
                   This is actually the bottom of the stack,
                   the top of the stack is always found in the
                   esp register.  */
    s32 signal;          /* Signal that caused the core dump. */
    u32 u_ar0;               /* Used by gdb to help find the values for */
                             /* the registers. */
    u32 magic;       /* To uniquely identify a core file */
    char u_comm[32];     /* User command that was responsible */
};

typedef struct
{
    __u32   len;
    __u32   kernel_addr;
    __u32   process_addr;
} compat_ptrace_area;

#endif /* _PTRACE32_H */