1 #ifndef _LINUX_ELFCORE_H 2 #define _LINUX_ELFCORE_H 3 4 #include <linux/user.h> 5 #include <linux/bug.h> 6 #include <asm/elf.h> 7 #include <uapi/linux/elfcore.h> 8 9 static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs) 10 { 11 #ifdef ELF_CORE_COPY_REGS 12 ELF_CORE_COPY_REGS((*elfregs), regs) 13 #else 14 BUG_ON(sizeof(*elfregs) != sizeof(*regs)); 15 *(struct pt_regs *)elfregs = *regs; 16 #endif 17 } 18 19 static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs) 20 { 21 #ifdef ELF_CORE_COPY_KERNEL_REGS 22 ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs); 23 #else 24 elf_core_copy_regs(elfregs, regs); 25 #endif 26 } 27 28 static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs) 29 { 30 #if defined (ELF_CORE_COPY_TASK_REGS) 31 return ELF_CORE_COPY_TASK_REGS(t, elfregs); 32 #elif defined (task_pt_regs) 33 elf_core_copy_regs(elfregs, task_pt_regs(t)); 34 #endif 35 return 0; 36 } 37 38 extern int dump_fpu (struct pt_regs *, elf_fpregset_t *); 39 40 static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu) 41 { 42 #ifdef ELF_CORE_COPY_FPREGS 43 return ELF_CORE_COPY_FPREGS(t, fpu); 44 #else 45 return dump_fpu(regs, fpu); 46 #endif 47 } 48 49 #ifdef ELF_CORE_COPY_XFPREGS 50 static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu) 51 { 52 return ELF_CORE_COPY_XFPREGS(t, xfpu); 53 } 54 #endif 55 56 /* 57 * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out 58 * extra segments containing the gate DSO contents. Dumping its 59 * contents makes post-mortem fully interpretable later without matching up 60 * the same kernel and hardware config to see what PC values meant. 61 * Dumping its extra ELF program headers includes all the other information 62 * a debugger needs to easily find how the gate DSO was being used. 63 */ 64 extern Elf_Half elf_core_extra_phdrs(void); 65 extern int 66 elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size, 67 unsigned long limit); 68 extern int 69 elf_core_write_extra_data(struct file *file, size_t *size, unsigned long limit); 70 extern size_t elf_core_extra_data_size(void); 71 72 #endif /* _LINUX_ELFCORE_H */ 73