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433a216919
After some research we found that the stack pointer on ARM platforms must be at least double word aligned (See: "Procedure Call Standard for the ARM Architecture" - 5.2.1.1). Since a 'call' on ARM will not result in a stack pointer change (like on x86), the current behavior resulted in a 4 Byte aligned stack only. Follow up to #1043
45 lines
971 B
C++
45 lines
971 B
C++
/*
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* \brief Constants definitions for the x86 architecture.
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* \author Stefan Kalkowski
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* \date 2011-09-08
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*/
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/*
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* Copyright (C) 2011-2013 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 General Public License version 2.
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*/
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#ifndef _INCLUDE__X86__CPU__CONSTS_H_
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#define _INCLUDE__X86__CPU__CONSTS_H_
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#include <base/stdint.h>
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namespace X86 {
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enum Eflags_masks {
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CARRY = 1 << 0,
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PARITY = 1 << 2,
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ADJUST = 1 << 4,
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ZERO = 1 << 6,
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SIGN = 1 << 7,
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TRAP = 1 << 8,
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INT_ENABLE = 1 << 9,
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DIRECTION = 1 << 10,
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OVERFLOW = 1 << 11,
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IOPL = 3 << 12,
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NESTED_TASK = 1 << 14,
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};
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}
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namespace Abi {
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/**
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* On x86 a call will result in a growth of the stack by machine word size
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*/
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static constexpr Genode::size_t stack_adjustment() { return sizeof(Genode::addr_t); }
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}
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#endif /* _INCLUDE__X86__CPU__CONSTS_H_ */
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