arch/ia64/ia32/elfcore32.h

   1 /*
   2  * IA-32 ELF core dump support.
   3  *
   4  * Copyright (C) 2003 Arun Sharma <arun.sharma@intel.com>
   5  *
   6  * Derived from the x86_64 version
   7  */
   8 #ifndef _ELFCORE32_H_
   9 #define _ELFCORE32_H_
  10
  11 #include <asm/intrinsics.h>
  12 #include <asm/uaccess.h>
  13
  14 #define USE_ELF_CORE_DUMP 1
  15
  16 /* Override elfcore.h */
  17 #define _LINUX_ELFCORE_H 1
  18 typedef unsigned int elf_greg_t;
  19
  20 #define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t))
  21 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  22
  23 typedef struct ia32_user_i387_struct elf_fpregset_t;
  24 typedef struct ia32_user_fxsr_struct elf_fpxregset_t;
  25
  26 struct elf_siginfo
  27 {
  28         int     si_signo;                       /* signal number */
  29         int     si_code;                        /* extra code */
  30         int     si_errno;                       /* errno */
  31 };
  32
  33 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
  34 /*
  35  * Hacks are here since types between compat_timeval (= pair of s32) and
  36  * ia64-native timeval (= pair of s64) are not compatible, at least a file
  37  * arch/ia64/ia32/../../../fs/binfmt_elf.c will get warnings from compiler on
  38  * use of cputime_to_timeval(), which usually an alias of jiffies_to_timeval().
  39  */
  40 #define cputime_to_timeval(a,b) \
  41         do { (b)->tv_usec = 0; (b)->tv_sec = (a)/NSEC_PER_SEC; } while(0)
  42 #else
  43 #define jiffies_to_timeval(a,b) \
  44         do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; } while(0)
  45 #endif
  46
  47 struct elf_prstatus
  48 {
  49         struct elf_siginfo pr_info;     /* Info associated with signal */
  50         short   pr_cursig;              /* Current signal */
  51         unsigned int pr_sigpend;        /* Set of pending signals */
  52         unsigned int pr_sighold;        /* Set of held signals */
  53         pid_t   pr_pid;
  54         pid_t   pr_ppid;
  55         pid_t   pr_pgrp;
  56         pid_t   pr_sid;
  57         struct compat_timeval pr_utime; /* User time */
  58         struct compat_timeval pr_stime; /* System time */
  59         struct compat_timeval pr_cutime;        /* Cumulative user time */
  60         struct compat_timeval pr_cstime;        /* Cumulative system time */
  61         elf_gregset_t pr_reg;   /* GP registers */
  62         int pr_fpvalid;         /* True if math co-processor being used.  */
  63 };
  64
  65 #define ELF_PRARGSZ     (80)    /* Number of chars for args */
  66
  67 struct elf_prpsinfo
  68 {
  69         char    pr_state;       /* numeric process state */
  70         char    pr_sname;       /* char for pr_state */
  71         char    pr_zomb;        /* zombie */
  72         char    pr_nice;        /* nice val */
  73         unsigned int pr_flag;   /* flags */
  74         __u16   pr_uid;
  75         __u16   pr_gid;
  76         pid_t   pr_pid, pr_ppid, pr_pgrp, pr_sid;
  77         /* Lots missing */
  78         char    pr_fname[16];   /* filename of executable */
  79         char    pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
  80 };
  81
  82 #define ELF_CORE_COPY_REGS(pr_reg, regs)                \
  83         pr_reg[0] = regs->r11;                          \
  84         pr_reg[1] = regs->r9;                           \
  85         pr_reg[2] = regs->r10;                          \
  86         pr_reg[3] = regs->r14;                          \
  87         pr_reg[4] = regs->r15;                          \
  88         pr_reg[5] = regs->r13;                          \
  89         pr_reg[6] = regs->r8;                           \
  90         pr_reg[7] = regs->r16 & 0xffff;                 \
  91         pr_reg[8] = (regs->r16 >> 16) & 0xffff;         \
  92         pr_reg[9] = (regs->r16 >> 32) & 0xffff;         \
  93         pr_reg[10] = (regs->r16 >> 48) & 0xffff;        \
  94         pr_reg[11] = regs->r1;                          \
  95         pr_reg[12] = regs->cr_iip;                      \
  96         pr_reg[13] = regs->r17 & 0xffff;                \
  97         pr_reg[14] = ia64_getreg(_IA64_REG_AR_EFLAG);   \
  98         pr_reg[15] = regs->r12;                         \
  99         pr_reg[16] = (regs->r17 >> 16) & 0xffff;
 100
 101 static inline void elf_core_copy_regs(elf_gregset_t *elfregs,
 102                                       struct pt_regs *regs)
 103 {
 104         ELF_CORE_COPY_REGS((*elfregs), regs)
 105 }
 106
 107 static inline int elf_core_copy_task_regs(struct task_struct *t,
 108                                           elf_gregset_t* elfregs)
 109 {
 110         ELF_CORE_COPY_REGS((*elfregs), task_pt_regs(t));
 111         return 1;
 112 }
 113
 114 static inline int
 115 elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpregset_t *fpu)
 116 {
 117         struct ia32_user_i387_struct *fpstate = (void*)fpu;
 118         mm_segment_t old_fs;
 119
 120         if (!tsk_used_math(tsk))
 121                 return 0;
 122
 123         old_fs = get_fs();
 124         set_fs(KERNEL_DS);
 125         save_ia32_fpstate(tsk, (struct ia32_user_i387_struct __user *) fpstate);
 126         set_fs(old_fs);
 127
 128         return 1;
 129 }
 130
 131 #define ELF_CORE_COPY_XFPREGS 1
 132 #define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
 133 static inline int
 134 elf_core_copy_task_xfpregs(struct task_struct *tsk, elf_fpxregset_t *xfpu)
 135 {
 136         struct ia32_user_fxsr_struct *fpxstate = (void*) xfpu;
 137         mm_segment_t old_fs;
 138
 139         if (!tsk_used_math(tsk))
 140                 return 0;
 141
 142         old_fs = get_fs();
 143         set_fs(KERNEL_DS);
 144         save_ia32_fpxstate(tsk, (struct ia32_user_fxsr_struct __user *) fpxstate);
 145         set_fs(old_fs);
 146
 147         return 1;
 148 }
 149
 150 #endif /* _ELFCORE32_H_ */