arch/sh/kernel/dump_task.c

   1 #include <linux/elfcore.h>
   2 #include <linux/sched.h>
   3 #include <asm/fpu.h>
   4
   5 /*
   6  * Capture the user space registers if the task is not running (in user space)
   7  */
   8 int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
   9 {
  10         struct pt_regs ptregs;
  11
  12         ptregs = *task_pt_regs(tsk);
  13         elf_core_copy_regs(regs, &ptregs);
  14
  15         return 1;
  16 }
  17
  18 int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpu)
  19 {
  20         int fpvalid = 0;
  21
  22 #if defined(CONFIG_SH_FPU)
  23         fpvalid = !!tsk_used_math(tsk);
  24         if (fpvalid) {
  25                 unlazy_fpu(tsk, task_pt_regs(tsk));
  26                 memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
  27         }
  28 #endif
  29
  30         return fpvalid;
  31 }
  32