arch/sh/kernel/dump_task.c

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