diff options
Diffstat (limited to 'arch/powerpc/kernel/ptrace.c')
| -rw-r--r-- | arch/powerpc/kernel/ptrace.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index 59ff08704e9..70fbde84b83 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -215,29 +215,56 @@ static int fpr_get(struct task_struct *target, const struct user_regset *regset, unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) { +#ifdef CONFIG_VSX + double buf[33]; + int i; +#endif flush_fp_to_thread(target); +#ifdef CONFIG_VSX + /* copy to local buffer then write that out */ + for (i = 0; i < 32 ; i++) + buf[i] = target->thread.TS_FPR(i); + memcpy(&buf[32], &target->thread.fpscr, sizeof(double)); + return user_regset_copyout(&pos, &count, &kbuf, &ubuf, buf, 0, -1); + +#else BUILD_BUG_ON(offsetof(struct thread_struct, fpscr) != offsetof(struct thread_struct, TS_FPR(32))); return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &target->thread.fpr, 0, -1); +#endif } static int fpr_set(struct task_struct *target, const struct user_regset *regset, unsigned int pos, unsigned int count, const void *kbuf, const void __user *ubuf) { +#ifdef CONFIG_VSX + double buf[33]; + int i; +#endif flush_fp_to_thread(target); +#ifdef CONFIG_VSX + /* copy to local buffer then write that out */ + i = user_regset_copyin(&pos, &count, &kbuf, &ubuf, buf, 0, -1); + if (i) + return i; + for (i = 0; i < 32 ; i++) + target->thread.TS_FPR(i) = buf[i]; + memcpy(&target->thread.fpscr, &buf[32], sizeof(double)); + return 0; +#else BUILD_BUG_ON(offsetof(struct thread_struct, fpscr) != offsetof(struct thread_struct, TS_FPR(32))); return user_regset_copyin(&pos, &count, &kbuf, &ubuf, &target->thread.fpr, 0, -1); +#endif } - #ifdef CONFIG_ALTIVEC /* * Get/set all the altivec registers vr0..vr31, vscr, vrsave, in one go. |