diff options
| -rw-r--r-- | arch/mips/kernel/ptrace.c | 46 |
1 files changed, 40 insertions, 6 deletions
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index 7d97709e715..4137a49eae2 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -304,10 +304,27 @@ static int fpr_get(struct task_struct *target, unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) { - return user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &target->thread.fpu, - 0, sizeof(elf_fpregset_t)); + unsigned i; + int err; + u64 fpr_val; + /* XXX fcr31 */ + + if (sizeof(target->thread.fpu.fpr[i]) == sizeof(elf_fpreg_t)) + return user_regset_copyout(&pos, &count, &kbuf, &ubuf, + &target->thread.fpu, + 0, sizeof(elf_fpregset_t)); + + for (i = 0; i < NUM_FPU_REGS; i++) { + fpr_val = get_fpr64(&target->thread.fpu.fpr[i], 0); + err = user_regset_copyout(&pos, &count, &kbuf, &ubuf, + &fpr_val, i * sizeof(elf_fpreg_t), + (i + 1) * sizeof(elf_fpreg_t)); + if (err) + return err; + } + + return 0; } static int fpr_set(struct task_struct *target, @@ -315,10 +332,27 @@ static int fpr_set(struct task_struct *target, unsigned int pos, unsigned int count, const void *kbuf, const void __user *ubuf) { - return user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &target->thread.fpu, - 0, sizeof(elf_fpregset_t)); + unsigned i; + int err; + u64 fpr_val; + /* XXX fcr31 */ + + if (sizeof(target->thread.fpu.fpr[i]) == sizeof(elf_fpreg_t)) + return user_regset_copyin(&pos, &count, &kbuf, &ubuf, + &target->thread.fpu, + 0, sizeof(elf_fpregset_t)); + + for (i = 0; i < NUM_FPU_REGS; i++) { + err = user_regset_copyin(&pos, &count, &kbuf, &ubuf, + &fpr_val, i * sizeof(elf_fpreg_t), + (i + 1) * sizeof(elf_fpreg_t)); + if (err) + return err; + set_fpr64(&target->thread.fpu.fpr[i], 0, fpr_val); + } + + return 0; } enum mips_regset { |