1 files changed, 73 insertions, 0 deletions
diff --git a/kernel/include/linux/elfcore.h b/kernel/include/linux/elfcore.h
new file mode 100644
index 000000000..698d51a0e
--- /dev/null
+++ b/kernel/include/linux/elfcore.h
@@ -0,0 +1,73 @@
+#ifndef _LINUX_ELFCORE_H
+#define _LINUX_ELFCORE_H
+
+#include <linux/user.h>
+#include <linux/bug.h>
+#include <asm/elf.h>
+#include <uapi/linux/elfcore.h>
+
+struct coredump_params;
+
+static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
+{
+#ifdef ELF_CORE_COPY_REGS
+	ELF_CORE_COPY_REGS((*elfregs), regs)
+#else
+	BUG_ON(sizeof(*elfregs) != sizeof(*regs));
+	*(struct pt_regs *)elfregs = *regs;
+#endif
+}
+
+static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
+{
+#ifdef ELF_CORE_COPY_KERNEL_REGS
+	ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs);
+#else
+	elf_core_copy_regs(elfregs, regs);
+#endif
+}
+
+static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
+{
+#if defined (ELF_CORE_COPY_TASK_REGS)
+	return ELF_CORE_COPY_TASK_REGS(t, elfregs);
+#elif defined (task_pt_regs)
+	elf_core_copy_regs(elfregs, task_pt_regs(t));
+#endif
+	return 0;
+}
+
+extern int dump_fpu (struct pt_regs *, elf_fpregset_t *);
+
+static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu)
+{
+#ifdef ELF_CORE_COPY_FPREGS
+	return ELF_CORE_COPY_FPREGS(t, fpu);
+#else
+	return dump_fpu(regs, fpu);
+#endif
+}
+
+#ifdef ELF_CORE_COPY_XFPREGS
+static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
+{
+	return ELF_CORE_COPY_XFPREGS(t, xfpu);
+}
+#endif
+
+/*
+ * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out
+ * extra segments containing the gate DSO contents.  Dumping its
+ * contents makes post-mortem fully interpretable later without matching up
+ * the same kernel and hardware config to see what PC values meant.
+ * Dumping its extra ELF program headers includes all the other information
+ * a debugger needs to easily find how the gate DSO was being used.
+ */
+extern Elf_Half elf_core_extra_phdrs(void);
+extern int
+elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset);
+extern int
+elf_core_write_extra_data(struct coredump_params *cprm);
+extern size_t elf_core_extra_data_size(void);
+
+#endif /* _LINUX_ELFCORE_H */