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- /*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * 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.
- * * Neither the name of Intel Corporation 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
- * OWNER 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.
- *
- */
- #include "se_map.h"
- #include "se_trace.h"
- #include <stdlib.h>
- map_handle_t* map_file(se_file_handle_t fd, uint32_t *size)
- {
- struct stat st;
- memset(&st, 0, sizeof(st));
- if (-1 == fstat(fd, &st))
- return NULL;
- map_handle_t* mh = (map_handle_t *)calloc(1, sizeof(map_handle_t));
- if (mh == NULL)
- return NULL;
- mh->base_addr = (uint8_t *)mmap(NULL, (size_t)st.st_size,
- PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
- if(MAP_FAILED == mh->base_addr)
- {
- free(mh);
- SE_TRACE(SE_TRACE_WARNING, "Couldn't map view of file, error code %x\n", errno);
- return NULL;
- }
- mh->length = (size_t)st.st_size;
- if (size) *size = (uint32_t)st.st_size;
- return mh;
- }
- void unmap_file(map_handle_t* mh)
- {
- munmap(mh->base_addr, mh->length);
- free(mh);
- }
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