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