44 lines
865 B
C
44 lines
865 B
C
/**
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* \brief Platform specific code
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* \author Christian Prochaska
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* \date 2019-07-01
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*/
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/*
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* Copyright (C) 2019 Genode Labs GmbH
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*
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* This file is distributed under the terms of the GNU General Public License
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* version 2.
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*/
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#ifndef _ARCH_EXECUTE_H_
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#define _ARCH_EXECUTE_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define _JBLEN 31
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typedef struct _jmp_buf { long _jb[_JBLEN + 1]; } jmp_buf[1];
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void _longjmp(jmp_buf, int);
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int _setjmp(jmp_buf);
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#ifdef __cplusplus
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}
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#endif
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static inline
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void arch_execute(void *sp, void *func, void *arg)
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{
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asm volatile ("mov x0, %2;" /* set arg */
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"mov sp, %0;" /* set stack */
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"mov x29, xzr;" /* clear frame pointer */
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"br %1;" /* call func */
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""
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: : "r"(sp), "r"(func), "r"(arg) : "r0");
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}
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#endif /* _ARCH_EXECUTE_H_ */
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