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Member "reptyr-reptyr-0.8.0/platform/linux/arch/powerpc.h" (29 Sep 2020, 2147 Bytes) of package /linux/privat/reptyr-reptyr-0.8.0.tar.gz:


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    1 /*
    2  * Copyright (C) 2011 by Nelson Elhage
    3  *
    4  * Permission is hereby granted, free of charge, to any person obtaining a copy
    5  * of this software and associated documentation files (the "Software"), to deal
    6  * in the Software without restriction, including without limitation the rights
    7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    8  * copies of the Software, and to permit persons to whom the Software is
    9  * furnished to do so, subject to the following conditions:
   10  *
   11  * The above copyright notice and this permission notice shall be included in
   12  * all copies or substantial portions of the Software.
   13  *
   14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   20  * THE SOFTWARE.
   21  */
   22 
   23 static struct ptrace_personality arch_personality[1] = {
   24     {
   25         offsetof(struct pt_regs, gpr[3]),
   26         offsetof(struct pt_regs, gpr[3]),
   27         offsetof(struct pt_regs, gpr[4]),
   28         offsetof(struct pt_regs, gpr[5]),
   29         offsetof(struct pt_regs, gpr[6]),
   30         offsetof(struct pt_regs, gpr[7]),
   31         offsetof(struct pt_regs, gpr[8]),
   32         offsetof(struct pt_regs, nip),
   33     }
   34 };
   35 
   36 static const unsigned long r0off = offsetof(struct pt_regs, gpr[0]);
   37 
   38 static inline void arch_fixup_regs(struct ptrace_child *child) {
   39     child->regs.nip -= 4;
   40 }
   41 
   42 static inline int arch_set_syscall(struct ptrace_child *child,
   43                                    unsigned long sysno) {
   44     return ptrace_command(child, PTRACE_POKEUSER, r0off, sysno);
   45 }
   46 
   47 static inline int arch_save_syscall(struct ptrace_child *child) {
   48     child->saved_syscall = *ptr(&child->regs, r0off);
   49     return 0;
   50 }
   51 
   52 static inline int arch_restore_syscall(struct ptrace_child *child) {
   53     return arch_set_syscall(child, child->saved_syscall);
   54 }