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__ 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 } 115 116 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 } 124 125 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 *); 136 137 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 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