From cc927a25bd704448b18b095c658cbfdd79dab865 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 30 Jan 2008 13:31:49 +0100 Subject: x86: x86 i387 header cleanup This moves some code into asm-x86/i387_64.h in preparation for unifying this code between 32 and 64. The 32-bit versions of some things are copied in some existing names changed to match 32-bit names and share code. For 64, save_i387 is moved into an inline from i387_64.c; this matches restore_i387, which is already an inline, and makes sense since there is exactly one caller (in signal_64.c). The save_i387 function could use more cosmetic cleanup, but it is just moved verbatim in this patch. Signed-off-by: Roland McGrath Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/i387_64.c | 31 ------------------------------- 1 file changed, 31 deletions(-) (limited to 'arch/x86/kernel/i387_64.c') diff --git a/arch/x86/kernel/i387_64.c b/arch/x86/kernel/i387_64.c index bfaff28fb134..f335a76d7ea7 100644 --- a/arch/x86/kernel/i387_64.c +++ b/arch/x86/kernel/i387_64.c @@ -71,37 +71,6 @@ void init_fpu(struct task_struct *child) set_stopped_child_used_math(child); } -/* - * Signal frame handlers. - */ - -int save_i387(struct _fpstate __user *buf) -{ - struct task_struct *tsk = current; - int err = 0; - - BUILD_BUG_ON(sizeof(struct user_i387_struct) != - sizeof(tsk->thread.i387.fxsave)); - - if ((unsigned long)buf % 16) - printk("save_i387: bad fpstate %p\n",buf); - - if (!used_math()) - return 0; - clear_used_math(); /* trigger finit */ - if (task_thread_info(tsk)->status & TS_USEDFPU) { - err = save_i387_checking((struct i387_fxsave_struct __user *)buf); - if (err) return err; - task_thread_info(tsk)->status &= ~TS_USEDFPU; - stts(); - } else { - if (__copy_to_user(buf, &tsk->thread.i387.fxsave, - sizeof(struct i387_fxsave_struct))) - return -1; - } - return 1; -} - /* * ptrace request handlers. */ -- cgit v1.2.3