forked from Minki/linux
6a274c08f2
This merges and cleans up some of the ugly copy/to from user code which is required for the new fpr and vsx layout in the thread_struct. Also fixes some hard coded buffer sizes and removes a redundant fpr_flush_to_thread. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/*
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* Copyright (c) 2007 Benjamin Herrenschmidt, IBM Coproration
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* Extracted from signal_32.c and signal_64.c
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*
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* This file is subject to the terms and conditions of the GNU General
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* Public License. See the file README.legal in the main directory of
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* this archive for more details.
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*/
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#ifndef _POWERPC_ARCH_SIGNAL_H
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#define _POWERPC_ARCH_SIGNAL_H
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#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
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extern void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
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size_t frame_size);
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extern void restore_sigmask(sigset_t *set);
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extern int handle_signal32(unsigned long sig, struct k_sigaction *ka,
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siginfo_t *info, sigset_t *oldset,
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struct pt_regs *regs);
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extern int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
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siginfo_t *info, sigset_t *oldset,
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struct pt_regs *regs);
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extern unsigned long copy_fpr_to_user(void __user *to,
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struct task_struct *task);
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extern unsigned long copy_fpr_from_user(struct task_struct *task,
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void __user *from);
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#ifdef CONFIG_VSX
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extern unsigned long copy_vsx_to_user(void __user *to,
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struct task_struct *task);
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extern unsigned long copy_vsx_from_user(struct task_struct *task,
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void __user *from);
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#endif
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#ifdef CONFIG_PPC64
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static inline int is_32bit_task(void)
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{
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return test_thread_flag(TIF_32BIT);
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}
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extern int handle_rt_signal64(int signr, struct k_sigaction *ka,
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siginfo_t *info, sigset_t *set,
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struct pt_regs *regs);
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#else /* CONFIG_PPC64 */
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static inline int is_32bit_task(void)
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{
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return 1;
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}
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static inline int handle_rt_signal64(int signr, struct k_sigaction *ka,
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siginfo_t *info, sigset_t *set,
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struct pt_regs *regs)
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{
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return -EFAULT;
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}
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#endif /* !defined(CONFIG_PPC64) */
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#endif /* _POWERPC_ARCH_SIGNAL_H */
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