branch.h

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    1 /*
    2  * This file is subject to the terms and conditions of the GNU General Public
    3  * License.  See the file "COPYING" in the main directory of this archive
    4  * for more details.
    5  *
    6  * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle
    7  */
    8 #ifndef _ASM_BRANCH_H
    9 #define _ASM_BRANCH_H
   10 
   11 #include <asm/ptrace.h>
   12 
   13 static inline int delay_slot(struct pt_regs *regs)
   14 {
   15         return regs->cp0_cause & CAUSEF_BD;
   16 }
   17 
   18 static inline unsigned long exception_epc(struct pt_regs *regs)
   19 {
   20         if (!delay_slot(regs))
   21                 return regs->cp0_epc;
   22 
   23         return regs->cp0_epc + 4;
   24 }
   25 
   26 extern int __compute_return_epc(struct pt_regs *regs);
   27 
   28 static inline int compute_return_epc(struct pt_regs *regs)
   29 {
   30         if (!delay_slot(regs)) {
   31                 regs->cp0_epc += 4;
   32                 return 0;
   33         }
   34 
   35         return __compute_return_epc(regs);
   36 }
   37 
   38 #endif /* _ASM_BRANCH_H */

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FreeBSD/Linux Kernel Cross Reference sys/include/asm-mips64/branch.h

FreeBSD/Linux Kernel Cross Reference
sys/include/asm-mips64/branch.h