1 #ifndef _LINUX_ELFCORE_H
2 #define _LINUX_ELFCORE_H
3
4 #include <linux/types.h>
5 #include <linux/signal.h>
6 #include <linux/time.h>
7 #ifdef __KERNEL__
8 #include <linux/user.h>
9 #include <linux/bug.h>
10 #endif
11 #include <linux/ptrace.h>
12 #include <linux/elf.h>
13 #include <linux/fs.h>
14
15 struct elf_siginfo
16 {
17 int si_signo; /* signal number */
18 int si_code; /* extra code */
19 int si_errno; /* errno */
20 };
21
22 #ifdef __KERNEL__
23 #include <asm/elf.h>
24 #endif
25
26 #ifndef __KERNEL__
27 typedef elf_greg_t greg_t;
28 typedef elf_gregset_t gregset_t;
29 typedef elf_fpregset_t fpregset_t;
30 typedef elf_fpxregset_t fpxregset_t;
31 #define NGREG ELF_NGREG
32 #endif
33
34 /*
35 * Definitions to generate Intel SVR4-like core files.
36 * These mostly have the same names as the SVR4 types with "elf_"
37 * tacked on the front to prevent clashes with linux definitions,
38 * and the typedef forms have been avoided. This is mostly like
39 * the SVR4 structure, but more Linuxy, with things that Linux does
40 * not support and which gdb doesn't really use excluded.
41 * Fields present but not used are marked with "XXX".
42 */
43 struct elf_prstatus
44 {
45 #if 0
46 long pr_flags; /* XXX Process flags */
47 short pr_why; /* XXX Reason for process halt */
48 short pr_what; /* XXX More detailed reason */
49 #endif
50 struct elf_siginfo pr_info; /* Info associated with signal */
51 short pr_cursig; /* Current signal */
52 unsigned long pr_sigpend; /* Set of pending signals */
53 unsigned long pr_sighold; /* Set of held signals */
54 #if 0
55 struct sigaltstack pr_altstack; /* Alternate stack info */
56 struct sigaction pr_action; /* Signal action for current sig */
57 #endif
58 pid_t pr_pid;
59 pid_t pr_ppid;
60 pid_t pr_pgrp;
61 pid_t pr_sid;
62 struct timeval pr_utime; /* User time */
63 struct timeval pr_stime; /* System time */
64 struct timeval pr_cutime; /* Cumulative user time */
65 struct timeval pr_cstime; /* Cumulative system time */
66 #if 0
67 long pr_instr; /* Current instruction */
68 #endif
69 elf_gregset_t pr_reg; /* GP registers */
70 #ifdef CONFIG_BINFMT_ELF_FDPIC
71 /* When using FDPIC, the loadmap addresses need to be communicated
72 * to GDB in order for GDB to do the necessary relocations. The
73 * fields (below) used to communicate this information are placed
74 * immediately after ``pr_reg'', so that the loadmap addresses may
75 * be viewed as part of the register set if so desired.
76 */
77 unsigned long pr_exec_fdpic_loadmap;
78 unsigned long pr_interp_fdpic_loadmap;
79 #endif
80 int pr_fpvalid; /* True if math co-processor being used. */
81 };
82
83 #define ELF_PRARGSZ (80) /* Number of chars for args */
84
85 struct elf_prpsinfo
86 {
87 char pr_state; /* numeric process state */
88 char pr_sname; /* char for pr_state */
89 char pr_zomb; /* zombie */
90 char pr_nice; /* nice val */
91 unsigned long pr_flag; /* flags */
92 __kernel_uid_t pr_uid;
93 __kernel_gid_t pr_gid;
94 pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
95 /* Lots missing */
96 char pr_fname[16]; /* filename of executable */
97 char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
98 };
99
100 #ifndef __KERNEL__
101 typedef struct elf_prstatus prstatus_t;
102 typedef struct elf_prpsinfo prpsinfo_t;
103 #define PRARGSZ ELF_PRARGSZ
104 #endif
105
106 #ifdef __KERNEL__
elf_core_copy_regs(elf_gregset_t * elfregs,struct pt_regs * regs)107 static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
108 {
109 #ifdef ELF_CORE_COPY_REGS
110 ELF_CORE_COPY_REGS((*elfregs), regs)
111 #else
112 BUG_ON(sizeof(*elfregs) != sizeof(*regs));
113 *(struct pt_regs *)elfregs = *regs;
114 #endif
115 }
116
elf_core_copy_kernel_regs(elf_gregset_t * elfregs,struct pt_regs * regs)117 static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
118 {
119 #ifdef ELF_CORE_COPY_KERNEL_REGS
120 ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs);
121 #else
122 elf_core_copy_regs(elfregs, regs);
123 #endif
124 }
125
elf_core_copy_task_regs(struct task_struct * t,elf_gregset_t * elfregs)126 static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
127 {
128 #if defined (ELF_CORE_COPY_TASK_REGS)
129 return ELF_CORE_COPY_TASK_REGS(t, elfregs);
130 #elif defined (task_pt_regs)
131 elf_core_copy_regs(elfregs, task_pt_regs(t));
132 #endif
133 return 0;
134 }
135
136 extern int dump_fpu (struct pt_regs *, elf_fpregset_t *);
137
elf_core_copy_task_fpregs(struct task_struct * t,struct pt_regs * regs,elf_fpregset_t * fpu)138 static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu)
139 {
140 #ifdef ELF_CORE_COPY_FPREGS
141 return ELF_CORE_COPY_FPREGS(t, fpu);
142 #else
143 return dump_fpu(regs, fpu);
144 #endif
145 }
146
147 #ifdef ELF_CORE_COPY_XFPREGS
elf_core_copy_task_xfpregs(struct task_struct * t,elf_fpxregset_t * xfpu)148 static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
149 {
150 return ELF_CORE_COPY_XFPREGS(t, xfpu);
151 }
152 #endif
153
154 /*
155 * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out
156 * extra segments containing the gate DSO contents. Dumping its
157 * contents makes post-mortem fully interpretable later without matching up
158 * the same kernel and hardware config to see what PC values meant.
159 * Dumping its extra ELF program headers includes all the other information
160 * a debugger needs to easily find how the gate DSO was being used.
161 */
162 extern Elf_Half elf_core_extra_phdrs(void);
163 extern int
164 elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
165 unsigned long limit);
166 extern int
167 elf_core_write_extra_data(struct file *file, size_t *size, unsigned long limit);
168 extern size_t elf_core_extra_data_size(void);
169
170 #endif /* __KERNEL__ */
171
172 #endif /* _LINUX_ELFCORE_H */
173