446c9aac924dce0271f14068dcd99ee4e84907aa
[linux-2.6.git] / 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 #define jiffies_to_timeval(a,b) do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; }while(0)
34
35 struct elf_prstatus
36 {
37         struct elf_siginfo pr_info;     /* Info associated with signal */
38         short   pr_cursig;              /* Current signal */
39         unsigned int pr_sigpend;        /* Set of pending signals */
40         unsigned int pr_sighold;        /* Set of held signals */
41         pid_t   pr_pid;
42         pid_t   pr_ppid;
43         pid_t   pr_pgrp;
44         pid_t   pr_sid;
45         struct compat_timeval pr_utime; /* User time */
46         struct compat_timeval pr_stime; /* System time */
47         struct compat_timeval pr_cutime;        /* Cumulative user time */
48         struct compat_timeval pr_cstime;        /* Cumulative system time */
49         elf_gregset_t pr_reg;   /* GP registers */
50         int pr_fpvalid;         /* True if math co-processor being used.  */
51 };
52
53 #define ELF_PRARGSZ     (80)    /* Number of chars for args */
54
55 struct elf_prpsinfo
56 {
57         char    pr_state;       /* numeric process state */
58         char    pr_sname;       /* char for pr_state */
59         char    pr_zomb;        /* zombie */
60         char    pr_nice;        /* nice val */
61         unsigned int pr_flag;   /* flags */
62         __u16   pr_uid;
63         __u16   pr_gid;
64         pid_t   pr_pid, pr_ppid, pr_pgrp, pr_sid;
65         /* Lots missing */
66         char    pr_fname[16];   /* filename of executable */
67         char    pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
68 };
69
70 #define ELF_CORE_COPY_REGS(pr_reg, regs)                \
71         pr_reg[0] = regs->r11;                          \
72         pr_reg[1] = regs->r9;                           \
73         pr_reg[2] = regs->r10;                          \
74         pr_reg[3] = regs->r14;                          \
75         pr_reg[4] = regs->r15;                          \
76         pr_reg[5] = regs->r13;                          \
77         pr_reg[6] = regs->r8;                           \
78         pr_reg[7] = regs->r16 & 0xffff;                 \
79         pr_reg[8] = (regs->r16 >> 16) & 0xffff;         \
80         pr_reg[9] = (regs->r16 >> 32) & 0xffff;         \
81         pr_reg[10] = (regs->r16 >> 48) & 0xffff;        \
82         pr_reg[11] = regs->r1;                          \
83         pr_reg[12] = regs->cr_iip;                      \
84         pr_reg[13] = regs->r17 & 0xffff;                \
85         pr_reg[14] = ia64_getreg(_IA64_REG_AR_EFLAG);   \
86         pr_reg[15] = regs->r12;                         \
87         pr_reg[16] = (regs->r17 >> 16) & 0xffff;
88
89 static inline void elf_core_copy_regs(elf_gregset_t *elfregs,
90                                       struct pt_regs *regs)
91 {
92         ELF_CORE_COPY_REGS((*elfregs), regs)
93 }
94
95 static inline int elf_core_copy_task_regs(struct task_struct *t,
96                                           elf_gregset_t* elfregs)
97 {
98         ELF_CORE_COPY_REGS((*elfregs), task_pt_regs(t));
99         return 1;
100 }
101
102 static inline int
103 elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpregset_t *fpu)
104 {
105         struct ia32_user_i387_struct *fpstate = (void*)fpu;
106         mm_segment_t old_fs;
107
108         if (!tsk_used_math(tsk))
109                 return 0;
110         
111         old_fs = get_fs();
112         set_fs(KERNEL_DS);
113         save_ia32_fpstate(tsk, (struct ia32_user_i387_struct __user *) fpstate);
114         set_fs(old_fs);
115
116         return 1;
117 }
118
119 #define ELF_CORE_COPY_XFPREGS 1
120 #define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
121 static inline int
122 elf_core_copy_task_xfpregs(struct task_struct *tsk, elf_fpxregset_t *xfpu)
123 {
124         struct ia32_user_fxsr_struct *fpxstate = (void*) xfpu;
125         mm_segment_t old_fs;
126
127         if (!tsk_used_math(tsk))
128                 return 0;
129
130         old_fs = get_fs();
131         set_fs(KERNEL_DS);
132         save_ia32_fpxstate(tsk, (struct ia32_user_fxsr_struct __user *) fpxstate);
133         set_fs(old_fs);
134
135         return 1;
136 }
137
138 #endif /* _ELFCORE32_H_ */