add xenomai

hc

2024-11-01 2f529f9b558ca1c1bd74be7437a84e4711743404

 kernel/arch/arm64/include/asm/syscall.h
..
..
@@ -73,6 +73,11 @@
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 	memcpy(args, &regs->regs[1], 5 * sizeof(args[0]));
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 }
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+static inline unsigned long syscall_get_arg0(struct pt_regs *regs)
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+{
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+	return regs->orig_x0;
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+}
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+
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 static inline void syscall_set_arguments(struct task_struct *task,
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 					 struct pt_regs *regs,
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 					 const unsigned long *args)