sh: Tidy up ELF core dumps.

These have been using overrides for ELF_CORE_COPY_TASK_REGS and
ELF_CORE_COPY_FPREGS while the generic versions can be used instead.
Presently the pt_regs are also duplicated across elf_core_copy_regs()
and elf_core_copy_task_regs(), this switches to simply copying out
through elf_core_copy_regs() instead.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/include/asm/elf.h

@@ -198,12 +198,6 @@ do {									\
 #endif
 
 #define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
-struct task_struct;
-extern int dump_task_regs (struct task_struct *, elf_gregset_t *);
-extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
-
-#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
-#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 
 #ifdef CONFIG_VSYSCALL
 /* vDSO has arch_setup_additional_pages */

arch/sh/kernel/Makefile_32

@@ -21,7 +21,6 @@ obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
 obj-$(CONFIG_PM)		+= pm.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
-obj-$(CONFIG_ELF_CORE)		+= dump_task.o
 obj-$(CONFIG_IO_TRAPPED)	+= io_trapped.o
 obj-$(CONFIG_KPROBES)		+= kprobes.o
 

arch/sh/kernel/Makefile_64

@@ -17,7 +17,6 @@ obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
 obj-$(CONFIG_PM)		+= pm.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
-obj-$(CONFIG_BINFMT_ELF)	+= dump_task.o
 obj-$(CONFIG_IO_TRAPPED)	+= io_trapped.o
 
 EXTRA_CFLAGS += -Werror

arch/sh/kernel/dump_task.c

-#include <linux/elfcore.h>
-#include <linux/sched.h>
-#include <asm/fpu.h>
-
-/*
- * Capture the user space registers if the task is not running (in user space)
- */
-int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
-{
-	struct pt_regs ptregs;
-
-	ptregs = *task_pt_regs(tsk);
-	elf_core_copy_regs(regs, &ptregs);
-
-	return 1;
-}
-
-int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpu)
-{
-	int fpvalid = 0;
-
-#if defined(CONFIG_SH_FPU)
-	fpvalid = !!tsk_used_math(tsk);
-	if (fpvalid) {
-		unlazy_fpu(tsk, task_pt_regs(tsk));
-		memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
-	}
-#endif
-
-	return fpvalid;
-}
-