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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
18typedef unsigned int elf_greg_t;
19
20#define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t))
21typedef elf_greg_t elf_gregset_t[ELF_NGREG];
22
23typedef struct ia32_user_i387_struct elf_fpregset_t;
24typedef struct ia32_user_fxsr_struct elf_fpxregset_t;
25
26struct 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
35struct 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
55struct 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
89static 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
95static inline int elf_core_copy_task_regs(struct task_struct *t,
96 elf_gregset_t* elfregs)
97{
Al Viro64505782006-01-12 01:06:06 -080098 ELF_CORE_COPY_REGS((*elfregs), task_pt_regs(t));
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 return 1;
100}
101
102static inline int
103elf_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
120static inline int
121elf_core_copy_task_xfpregs(struct task_struct *tsk, elf_fpxregset_t *xfpu)
122{
123 struct ia32_user_fxsr_struct *fpxstate = (void*) xfpu;
124 mm_segment_t old_fs;
125
126 if (!tsk_used_math(tsk))
127 return 0;
128
129 old_fs = get_fs();
130 set_fs(KERNEL_DS);
131 save_ia32_fpxstate(tsk, (struct ia32_user_fxsr_struct __user *) fpxstate);
132 set_fs(old_fs);
133
134 return 1;
135}
136
137#endif /* _ELFCORE32_H_ */