ce22c02387
Add the basic build infrastructure and architectural support
required to build for targets using the MIPS architecture.
This will require the addition of cache maintenance.
BUG=chrome-os-partner:31438
TEST=tested on Pistachio FPGA with Depthcharge as payload;
successfully executed payload.
BRANCH=none
Change-Id: I75cfd0536860b6d84b53a567940fe6668d9b2cbb
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 758c8cb9a6846e6ca32be409ec5f7a888ac9c888
Original-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com>
Original-Change-Id: I0b9af983bf5032335a519ce2510a0b3aca082edf
Original-Reviewed-on: https://chromium-review.googlesource.com/219740
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8741
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2014 Imagination Technologies
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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#include "string.h"
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/*
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* Alternative string functions to the default ones are added
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* because there is no guarantee that the provided source and
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* destination addresses are properly aligned;
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* The default string functions work with multiple of 4 bytes
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* (sizeof(unsinged long)); MIPS will use LW/SW instructions
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* for these operations and if the source and destination
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* addresses are not aligned it will trigger an exception.
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*/
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void *memcpy(void *dest, const void *src, size_t n)
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{
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u8 *ptr_d = dest;
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const u8 *ptr_s = src;
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size_t i;
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for (i = 0; i < n; i++)
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*ptr_d++ = *ptr_s++;
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return dest;
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}
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void *memmove(void *dest, const void *src, size_t n)
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{
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if ((src < dest) && (dest - src < n)) {
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u8 *ptr_d = dest;
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const u8 *ptr_s = src;
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size_t i;
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/* copy backwards */
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for (i = n - 1; i >= 0; i--)
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ptr_d[i] = ptr_s[i];
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return dest;
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}
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/* copy forwards */
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return memcpy(dest, src, n);
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}
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void *memset(void *s, int c, size_t n)
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{
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u8 *ptr = s;
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size_t i;
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for (i = 0; i < n; i++)
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*ptr++ = c;
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return s;
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}
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