root/include/linux/elfcore.h

INCLUDED FROM

DEFINITIONS

1. elf_core_copy_regs
2. elf_core_copy_task_regs
3. elf_core_copy_task_fpregs
4. elf_core_copy_task_xfpregs

#ifndef _LINUX_ELFCORE_H
#define _LINUX_ELFCORE_H

#include <linux/types.h>
#include <linux/signal.h>
#include <linux/time.h>
#ifdef __KERNEL__
#include <linux/user.h>
#endif
#include <linux/ptrace.h>

struct elf_siginfo
{
        int     si_signo;                       /* signal number */
        int     si_code;                        /* extra code */
        int     si_errno;                       /* errno */
};

#ifdef __KERNEL__
#include <asm/elf.h>
#endif

#ifndef __KERNEL__
typedef elf_greg_t greg_t;
typedef elf_gregset_t gregset_t;
typedef elf_fpregset_t fpregset_t;
typedef elf_fpxregset_t fpxregset_t;
#define NGREG ELF_NGREG
#endif

/*
 * Definitions to generate Intel SVR4-like core files.
 * These mostly have the same names as the SVR4 types with "elf_"
 * tacked on the front to prevent clashes with linux definitions,
 * and the typedef forms have been avoided.  This is mostly like
 * the SVR4 structure, but more Linuxy, with things that Linux does
 * not support and which gdb doesn't really use excluded.
 * Fields present but not used are marked with "XXX".
 */
struct elf_prstatus
{
#if 0
        long    pr_flags;       /* XXX Process flags */
        short   pr_why;         /* XXX Reason for process halt */
        short   pr_what;        /* XXX More detailed reason */
#endif
        struct elf_siginfo pr_info;     /* Info associated with signal */
        short   pr_cursig;              /* Current signal */
        unsigned long pr_sigpend;       /* Set of pending signals */
        unsigned long pr_sighold;       /* Set of held signals */
#if 0
        struct sigaltstack pr_altstack; /* Alternate stack info */
        struct sigaction pr_action;     /* Signal action for current sig */
#endif
        pid_t   pr_pid;
        pid_t   pr_ppid;
        pid_t   pr_pgrp;
        pid_t   pr_sid;
        struct timeval pr_utime;        /* User time */
        struct timeval pr_stime;        /* System time */
        struct timeval pr_cutime;       /* Cumulative user time */
        struct timeval pr_cstime;       /* Cumulative system time */
#if 0
        long    pr_instr;               /* Current instruction */
#endif
        elf_gregset_t pr_reg;   /* GP registers */
#ifdef CONFIG_BINFMT_ELF_FDPIC
        /* When using FDPIC, the loadmap addresses need to be communicated
         * to GDB in order for GDB to do the necessary relocations.  The
         * fields (below) used to communicate this information are placed
         * immediately after ``pr_reg'', so that the loadmap addresses may
         * be viewed as part of the register set if so desired.
         */
        unsigned long pr_exec_fdpic_loadmap;
        unsigned long pr_interp_fdpic_loadmap;
#endif
        int pr_fpvalid;         /* True if math co-processor being used.  */
};

#define ELF_PRARGSZ     (80)    /* Number of chars for args */

struct elf_prpsinfo
{
        char    pr_state;       /* numeric process state */
        char    pr_sname;       /* char for pr_state */
        char    pr_zomb;        /* zombie */
        char    pr_nice;        /* nice val */
        unsigned long pr_flag;  /* flags */
        __kernel_uid_t  pr_uid;
        __kernel_gid_t  pr_gid;
        pid_t   pr_pid, pr_ppid, pr_pgrp, pr_sid;
        /* Lots missing */
        char    pr_fname[16];   /* filename of executable */
        char    pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
};

#ifndef __KERNEL__
typedef struct elf_prstatus prstatus_t;
typedef struct elf_prpsinfo prpsinfo_t;
#define PRARGSZ ELF_PRARGSZ 
#endif

#ifdef __KERNEL__
static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
{
#ifdef ELF_CORE_COPY_REGS
        ELF_CORE_COPY_REGS((*elfregs), regs)
#else
        BUG_ON(sizeof(*elfregs) != sizeof(*regs));
        *(struct pt_regs *)elfregs = *regs;
#endif
}

static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
{
#ifdef ELF_CORE_COPY_TASK_REGS
        
        return ELF_CORE_COPY_TASK_REGS(t, elfregs);
#endif
        return 0;
}

extern int dump_fpu (struct pt_regs *, elf_fpregset_t *);

static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu)
{
#ifdef ELF_CORE_COPY_FPREGS
        return ELF_CORE_COPY_FPREGS(t, fpu);
#else
        return dump_fpu(regs, fpu);
#endif
}

#ifdef ELF_CORE_COPY_XFPREGS
static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
{
        return ELF_CORE_COPY_XFPREGS(t, xfpu);
}
#endif

#endif /* __KERNEL__ */


#endif /* _LINUX_ELFCORE_H */