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9441de4c38
This release is used in conjunction with the linux-sgx-driver Intial release: https://github.com/01org/linux-sgx-driver commit-id: 0e865ce5e6b297a787bcdc12d98bada8174be6d7 Intel-id: 33399 Signed-off-by: Angie Chinchilla <angie.v.chinchilla@intel.com>
80 lines
3.3 KiB
C
80 lines
3.3 KiB
C
/*
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* Copyright (C) 2011-2016 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef _UTIL_H_
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#define _UTIL_H_
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#include "arch.h"
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#include <assert.h>
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#ifdef __cplusplus
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#define GET_PTR(t, p, offset) reinterpret_cast<t*>( reinterpret_cast<size_t>(p) + static_cast<size_t>(offset) )
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#define PTR_DIFF(p1, p2) ((reinterpret_cast<size_t>(p1) - reinterpret_cast<size_t>(p2)))
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#else
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#define GET_PTR(t, p, offset) (t*)( (size_t)(p) + (size_t)(offset) )
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#define PTR_DIFF(p1, p2) ((size_t)(p1) - (size_t)(p2))
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#endif
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#define DIFF(p1, p2) (assert((size_t)(p1) >= (size_t)(p2)), ((size_t)(p1) - (size_t)(p2)))
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#define DIFF64(p1, p2) (assert((uint64_t)(p1) >= (uint64_t)(p2)), ((uint64_t)(p1) - (uint64_t)(p2)))
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#define SE_PAGE_SHIFT 12
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#define SE_BULK_PAGE_FRAME_SHIFT 4
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#define SE_BULK_PAGE_FRAME_SIZE (1 << SE_BULK_PAGE_FRAME_SHIFT)
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#define SE_BULK_PAGE_FRAME_MASK (SE_BULK_PAGE_FRAME_SIZE-1)
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#define SE_BULK_PAGE_SHIFT (SE_PAGE_SHIFT + SE_BULK_PAGE_FRAME_SHIFT)
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#define SE_BULK_PAGE_SIZE (1 << SE_BULK_PAGE_SHIFT)
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#define SE_GUARD_PAGE_SHIFT SE_PAGE_SHIFT
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#define SE_GUARD_PAGE_SIZE SE_PAGE_SIZE
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#define ROUND_TO(x, align) (((x) + ((align)-1)) & ~((align)-1))
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#define ROUND_TO_PAGE(x) ROUND_TO(x, SE_PAGE_SIZE)
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#define TRIM_TO_PAGE(x) ((x) & ~(SE_PAGE_SIZE-1))
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#ifdef __cplusplus
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#define PAGE_ALIGN(t, x) reinterpret_cast<t*>((reinterpret_cast<size_t>(x)+(SE_PAGE_SIZE-1)) & (~(SE_PAGE_SIZE-1)))
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#else
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#define PAGE_ALIGN(t, x) (t*)( ((size_t)(x)+(SE_PAGE_SIZE-1)) & (~(SE_PAGE_SIZE-1)) )
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#endif
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#define IS_PAGE_ALIGNED(x) (!((size_t)(x)&(SE_PAGE_SIZE-1)))
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#define MIN(x, y) (((x)>(y))?(y):(x))
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#define MAX(x, y) (((x)>(y))?(x):(y))
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#define ARRAY_LENGTH(x) (sizeof(x)/sizeof(x[0]))
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/* used to eliminate `unused variable' warning */
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#define UNUSED(val) (void)(val)
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#include <stddef.h>
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#define container_of(ptr, type, member) (type *)( (char *)(ptr) - offsetof(type,member) )
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#endif
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