diff options
| author | Roland McGrath <roland@redhat.com> | 2008-01-30 13:31:49 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:31:49 +0100 |
| commit | cc927a25bd704448b18b095c658cbfdd79dab865 (patch) | |
| tree | c29d4cbe0482797af69686ef02a3b59c57f4ecb4 /arch/x86 | |
| parent | 99f8ecdf4506010feda26ffe4ac0d23962947106 (diff) | |
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 <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/i387_64.c | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/arch/x86/kernel/i387_64.c b/arch/x86/kernel/i387_64.c index bfaff28fb13..f335a76d7ea 100644 --- a/arch/x86/kernel/i387_64.c +++ b/arch/x86/kernel/i387_64.c @@ -72,37 +72,6 @@ void init_fpu(struct task_struct *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. */ |