45 lines
938 B
C
45 lines
938 B
C
/**
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* \brief Platform specific code
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* \author Sebastian Sumpf
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* \author Josef Soentgen
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* \date 2012-06-10
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*/
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/*
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* Copyright (C) 2012-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _X86_32__PLATFORM_H_
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#define _X86_32__PLATFORM_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define _JBLEN 11
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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 platform_execute(void *sp, void *func, void *arg)
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{
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asm volatile ("movl %2, 0(%0);"
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"movl %1, -0x4(%0);"
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"movl %0, %%esp;"
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"xorl %%ebp, %%ebp;" /* clear frame pointer */
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"call *-4(%%esp);"
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: : "r" (sp), "r" (func), "r" (arg));
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}
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#endif /* _X86_32__PLATFORM_H_ */
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