LXR linux/include/linux/elfcore.h

   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
   9struct coredump_params;
  10
  11static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
  12{
  13#ifdef ELF_CORE_COPY_REGS
  14        ELF_CORE_COPY_REGS((*elfregs), regs)
  15#else
  16        BUG_ON(sizeof(*elfregs) != sizeof(*regs));
  17        *(struct pt_regs *)elfregs = *regs;
  18#endif
  19}
  20
  21static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
  22{
  23#ifdef ELF_CORE_COPY_KERNEL_REGS
  24        ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs);
  25#else
  26        elf_core_copy_regs(elfregs, regs);
  27#endif
  28}
  29
  30static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
  31{
  32#if defined (ELF_CORE_COPY_TASK_REGS)
  33        return ELF_CORE_COPY_TASK_REGS(t, elfregs);
  34#elif defined (task_pt_regs)
  35        elf_core_copy_regs(elfregs, task_pt_regs(t));
  36#endif
  37        return 0;
  38}
  39
  40extern int dump_fpu (struct pt_regs *, elf_fpregset_t *);
  41
  42static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu)
  43{
  44#ifdef ELF_CORE_COPY_FPREGS
  45        return ELF_CORE_COPY_FPREGS(t, fpu);
  46#else
  47        return dump_fpu(regs, fpu);
  48#endif
  49}
  50
  51#ifdef ELF_CORE_COPY_XFPREGS
  52static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
  53{
  54        return ELF_CORE_COPY_XFPREGS(t, xfpu);
  55}
  56#endif
  57
  58/*
  59 * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out
  60 * extra segments containing the gate DSO contents.  Dumping its
  61 * contents makes post-mortem fully interpretable later without matching up
  62 * the same kernel and hardware config to see what PC values meant.
  63 * Dumping its extra ELF program headers includes all the other information
  64 * a debugger needs to easily find how the gate DSO was being used.
  65 */
  66extern Elf_Half elf_core_extra_phdrs(void);
  67extern int
  68elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset);
  69extern int
  70elf_core_write_extra_data(struct coredump_params *cprm);
  71extern size_t elf_core_extra_data_size(void);
  72
  73#endif /* _LINUX_ELFCORE_H */
  74