Files
gem5/src/sim/aux_vector.hh
Gabe Black 9305bb6e83 arch, sim: Simplify the AuxVector type.
The AuxVector type has a bunch of accessors which just give access to
the underlying variables through references. We might as well just make
those members accessible directly.

Also, the AuxVector doesn't need to handle endianness flips itself. We
can tell the byteswap mechanism how to flip an AuxVector, and let it
handle that for us.

This gets rid of the entire .cc file which was complicated by trying
to both hide the ISA specific endianness translations, and instantiate
templated functions in a .cc.

Change-Id: I433cd61e73e0b067b6d628fba31be4a4ec1c4cf0
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18373
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
2019-04-28 05:16:01 +00:00

87 lines
3.6 KiB
C++

/*
* Copyright (c) 2016 Advanced Micro Devices, Inc.
* All rights reserved.
*
* For use for simulation and test purposes only
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Brandon Potter
*/
#ifndef __AUX_VECTOR_HH__
#define __AUX_VECTOR_HH__
template<class IntType>
class AuxVector
{
public:
AuxVector() = default;
AuxVector(IntType _type, IntType _val) : type(_type), val(_val) {}
IntType type = 0;
IntType val = 0;
};
template<class IntType>
inline AuxVector<IntType>
swap_byte(AuxVector<IntType> av)
{
av.type = swap_byte(av.type);
av.val = swap_byte(av.val);
return av;
}
enum AuxiliaryVectorType {
M5_AT_NULL = 0, // End of vector.
M5_AT_IGNORE = 1, // Ignored.
M5_AT_EXECFD = 2, // File descriptor of program if interpreter used.
M5_AT_PHDR = 3, // Address of program header tables in memory.
M5_AT_PHENT = 4, // Size in bytes of one program header entry.
M5_AT_PHNUM = 5, // Number of entries in program header table.
M5_AT_PAGESZ = 6, // System page size.
M5_AT_BASE = 7, // Base address of interpreter program in memory.
M5_AT_FLAGS = 8, // Unused.
M5_AT_ENTRY = 9, // Entry point of program after interpreter setup.
M5_AT_NOTELF = 10, // Non-zero if format is different than ELF.
M5_AT_UID = 11, // Address of real user ID of thread.
M5_AT_EUID = 12, // Address of effective user ID of thread.
M5_AT_GID = 13, // Address of real group ID of thread.
M5_AT_EGID = 14, // Address of effective group ID of thread.
M5_AT_PLATFORM = 15, // Platform string for the architecture.
M5_AT_HWCAP = 16, // Bits which describe the hardware capabilities.
M5_AT_CLKTCK = 17, // Frequency at which times() syscall increments.
M5_AT_SECURE = 23, // Whether to enable "secure mode" in executable.
M5_BASE_PLATFORM = 24, // Platform string (differs on PowerPC only).
M5_AT_RANDOM = 25, // Pointer to 16 bytes of random data.
M5_AT_HWCAP2 = 26, // Extension of AT_HWCAP.
M5_AT_EXECFN = 31, // Filename of the program.
M5_AT_VECTOR_SIZE = 44
};
#endif // __AUX_VECTOR_HH__