+static int genregs_get(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ void *kbuf, void __user *ubuf)
+{
+ const struct pt_regs *regs = task_pt_regs(target);
+ int ret;
+
+ ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ regs->regs,
+ 0, 16 * sizeof(unsigned long));
+ if (!ret)
+ /* PC, PR, SR, GBR, MACH, MACL, TRA */
+ ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ ®s->pc,
+ offsetof(struct pt_regs, pc),
+ sizeof(struct pt_regs));
+ if (!ret)
+ ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
+ sizeof(struct pt_regs), -1);
+
+ return ret;
+}
+
+static int genregs_set(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ const void *kbuf, const void __user *ubuf)
+{
+ struct pt_regs *regs = task_pt_regs(target);
+ int ret;
+
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ regs->regs,
+ 0, 16 * sizeof(unsigned long));
+ if (!ret && count > 0)
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ ®s->pc,
+ offsetof(struct pt_regs, pc),
+ sizeof(struct pt_regs));
+ if (!ret)
+ ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+ sizeof(struct pt_regs), -1);
+
+ return ret;
+}
+
+#ifdef CONFIG_SH_FPU
+int fpregs_get(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ void *kbuf, void __user *ubuf)
+{
+ int ret;
+
+ ret = init_fpu(target);
+ if (ret)
+ return ret;
+
+ if ((boot_cpu_data.flags & CPU_HAS_FPU))
+ return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ &target->thread.fpu.hard, 0, -1);
+
+ return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ &target->thread.fpu.soft, 0, -1);
+}
+
+static int fpregs_set(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ const void *kbuf, const void __user *ubuf)
+{
+ int ret;
+
+ ret = init_fpu(target);
+ if (ret)
+ return ret;
+
+ set_stopped_child_used_math(target);
+
+ if ((boot_cpu_data.flags & CPU_HAS_FPU))
+ return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &target->thread.fpu.hard, 0, -1);
+
+ return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &target->thread.fpu.soft, 0, -1);
+}
+
+static int fpregs_active(struct task_struct *target,
+ const struct user_regset *regset)
+{
+ return tsk_used_math(target) ? regset->n : 0;
+}
+#endif
+
+#ifdef CONFIG_SH_DSP
+static int dspregs_get(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ void *kbuf, void __user *ubuf)
+{
+ const struct pt_dspregs *regs = task_pt_dspregs(target);
+ int ret;
+
+ ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, regs,
+ 0, sizeof(struct pt_dspregs));
+ if (!ret)
+ ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
+ sizeof(struct pt_dspregs), -1);
+
+ return ret;
+}
+
+static int dspregs_set(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ const void *kbuf, const void __user *ubuf)
+{
+ struct pt_dspregs *regs = task_pt_dspregs(target);
+ int ret;
+
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, regs,
+ 0, sizeof(struct pt_dspregs));
+ if (!ret)
+ ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+ sizeof(struct pt_dspregs), -1);
+
+ return ret;
+}
+
+static int dspregs_active(struct task_struct *target,
+ const struct user_regset *regset)
+{
+ struct pt_regs *regs = task_pt_regs(target);
+
+ return regs->sr & SR_DSP ? regset->n : 0;
+}
+#endif
+
+/*
+ * These are our native regset flavours.
+ */
+enum sh_regset {
+ REGSET_GENERAL,
+#ifdef CONFIG_SH_FPU
+ REGSET_FPU,
+#endif
+#ifdef CONFIG_SH_DSP
+ REGSET_DSP,
+#endif
+};
+
+static const struct user_regset sh_regsets[] = {
+ /*
+ * Format is:
+ * R0 --> R15
+ * PC, PR, SR, GBR, MACH, MACL, TRA
+ */
+ [REGSET_GENERAL] = {
+ .core_note_type = NT_PRSTATUS,
+ .n = ELF_NGREG,
+ .size = sizeof(long),
+ .align = sizeof(long),
+ .get = genregs_get,
+ .set = genregs_set,
+ },
+
+#ifdef CONFIG_SH_FPU
+ [REGSET_FPU] = {
+ .core_note_type = NT_PRFPREG,
+ .n = sizeof(struct user_fpu_struct) / sizeof(long),
+ .size = sizeof(long),
+ .align = sizeof(long),
+ .get = fpregs_get,
+ .set = fpregs_set,
+ .active = fpregs_active,
+ },
+#endif
+
+#ifdef CONFIG_SH_DSP
+ [REGSET_DSP] = {
+ .n = sizeof(struct pt_dspregs) / sizeof(long),
+ .size = sizeof(long),
+ .align = sizeof(long),
+ .get = dspregs_get,
+ .set = dspregs_set,
+ .active = dspregs_active,
+ },
+#endif
+};
+
+static const struct user_regset_view user_sh_native_view = {
+ .name = "sh",
+ .e_machine = EM_SH,
+ .regsets = sh_regsets,
+ .n = ARRAY_SIZE(sh_regsets),
+};
+
+const struct user_regset_view *task_user_regset_view(struct task_struct *task)
+{
+ return &user_sh_native_view;
+}
+