1 #ifndef _LINUX_ELFCORE_H
2 #define _LINUX_ELFCORE_H
4 #include <linux/user.h>
6 #include <linux/sched/task_stack.h>
9 #include <uapi/linux/elfcore.h>
11 struct coredump_params;
13 static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
15 #ifdef ELF_CORE_COPY_REGS
16 ELF_CORE_COPY_REGS((*elfregs), regs)
18 BUG_ON(sizeof(*elfregs) != sizeof(*regs));
19 *(struct pt_regs *)elfregs = *regs;
23 static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
25 #ifdef ELF_CORE_COPY_KERNEL_REGS
26 ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs);
28 elf_core_copy_regs(elfregs, regs);
32 static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
34 #if defined (ELF_CORE_COPY_TASK_REGS)
35 return ELF_CORE_COPY_TASK_REGS(t, elfregs);
36 #elif defined (task_pt_regs)
37 elf_core_copy_regs(elfregs, task_pt_regs(t));
42 extern int dump_fpu (struct pt_regs *, elf_fpregset_t *);
44 static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu)
46 #ifdef ELF_CORE_COPY_FPREGS
47 return ELF_CORE_COPY_FPREGS(t, fpu);
49 return dump_fpu(regs, fpu);
53 #ifdef ELF_CORE_COPY_XFPREGS
54 static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
56 return ELF_CORE_COPY_XFPREGS(t, xfpu);
61 * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out
62 * extra segments containing the gate DSO contents. Dumping its
63 * contents makes post-mortem fully interpretable later without matching up
64 * the same kernel and hardware config to see what PC values meant.
65 * Dumping its extra ELF program headers includes all the other information
66 * a debugger needs to easily find how the gate DSO was being used.
68 extern Elf_Half elf_core_extra_phdrs(void);
70 elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset);
72 elf_core_write_extra_data(struct coredump_params *cprm);
73 extern size_t elf_core_extra_data_size(void);
75 #endif /* _LINUX_ELFCORE_H */