33 lines
891 B
C
33 lines
891 B
C
/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2018-2020 Philippe Gerum <rpm@xenomai.org>
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*/
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#ifndef _LIB_EVL_ARM_SYSCALL_H
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#define _LIB_EVL_ARM_SYSCALL_H
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#include <uapi/asm-generic/dovetail.h>
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#define evl_syscall3(__nr, __a0, __a1, __a2) \
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({ \
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register unsigned long __sc __asm__("r7"); \
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register unsigned long __res __asm__("r0"); \
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register unsigned long __r0 __asm__("r0"); \
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register unsigned long __r1 __asm__("r1"); \
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register unsigned long __r2 __asm__("r2"); \
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__sc = (unsigned long)(__nr)|__OOB_SYSCALL_BIT; \
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__r0 = (unsigned long)(__a0); \
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__r1 = (unsigned long)(__a1); \
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__r2 = (unsigned long)(__a2); \
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__asm__ __volatile__ ( \
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"swi #0;\n\t" \
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: "=r" (__res) \
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: "r" (__sc), \
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"r" (__r0), "r" (__r1), "r" (__r2) \
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: "cc", "memory"); \
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__res; \
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})
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#endif /* !_LIB_EVL_ARM_SYSCALL_H */
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