2009-06-17 18:28:50 +02:00
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/****************************************************************************
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* binfmt/libnxflat/libnxflat_init.c
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*
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2021-02-03 14:47:23 +01:00
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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2009-06-17 18:28:50 +02:00
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*
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2021-02-03 14:47:23 +01:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2009-06-17 18:28:50 +02:00
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*
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2021-02-03 14:47:23 +01:00
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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2009-06-17 18:28:50 +02:00
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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2009-12-15 18:06:59 +01:00
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#include <sys/stat.h>
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#include <stdint.h>
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2009-06-17 18:28:50 +02:00
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#include <string.h>
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#include <fcntl.h>
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#include <nxflat.h>
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#include <debug.h>
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#include <errno.h>
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#include <arpa/inet.h>
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2018-09-15 18:49:41 +02:00
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#include <nuttx/fs/fs.h>
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2012-10-24 22:19:44 +02:00
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#include <nuttx/binfmt/nxflat.h>
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2009-06-17 18:28:50 +02:00
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/****************************************************************************
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2015-04-08 16:29:03 +02:00
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* Pre-processor Definitions
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2009-06-17 18:28:50 +02:00
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****************************************************************************/
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2021-01-12 05:33:46 +01:00
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/* CONFIG_DEBUG_FEATURES, CONFIG_DEBUG_INFO, and CONFIG_DEBUG_BINFMT have to
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* be defined or CONFIG_NXFLAT_DUMPBUFFER does nothing.
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2009-06-25 23:59:30 +02:00
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*/
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2016-06-11 19:50:18 +02:00
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#if !defined(CONFIG_DEBUG_INFO) || !defined (CONFIG_DEBUG_BINFMT)
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2009-06-25 23:59:30 +02:00
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# undef CONFIG_NXFLAT_DUMPBUFFER
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#endif
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#ifdef CONFIG_NXFLAT_DUMPBUFFER
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2023-05-20 00:32:34 +02:00
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# define nxflat_dumpbuffer(m,b,n) binfodumpbuffer(m,b,n)
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2009-06-25 23:59:30 +02:00
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#else
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2023-05-20 00:32:34 +02:00
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# define nxflat_dumpbuffer(m,b,n)
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2009-06-25 23:59:30 +02:00
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#endif
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2009-06-17 18:28:50 +02:00
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/****************************************************************************
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* Private Constant Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxflat_init
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2009-06-23 00:12:19 +02:00
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*
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* Description:
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* This function is called to configure the library to process an NXFLAT
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* program binary.
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*
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* Returned Value:
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* 0 (OK) is returned on success and a negated errno is returned on
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* failure.
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*
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2009-06-17 18:28:50 +02:00
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****************************************************************************/
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2009-06-25 23:59:30 +02:00
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int nxflat_init(const char *filename, struct nxflat_loadinfo_s *loadinfo)
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2009-06-17 18:28:50 +02:00
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{
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2009-12-15 18:06:59 +01:00
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uint32_t datastart;
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uint32_t dataend;
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uint32_t bssend;
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int ret;
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2009-06-17 18:28:50 +02:00
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2016-06-11 19:59:51 +02:00
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binfo("filename: %s loadinfo: %p\n", filename, loadinfo);
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2009-06-17 18:28:50 +02:00
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/* Clear the load info structure */
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memset(loadinfo, 0, sizeof(struct nxflat_loadinfo_s));
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/* Open the binary file */
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2021-02-15 18:15:08 +01:00
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ret = file_open(&loadinfo->file, filename, O_RDONLY);
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if (ret < 0)
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2009-06-17 18:28:50 +02:00
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{
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2019-03-19 14:00:54 +01:00
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berr("ERROR: Failed to open NXFLAT binary %s: %d\n", filename, ret);
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2018-09-15 18:49:41 +02:00
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return ret;
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2009-06-17 18:28:50 +02:00
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}
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/* Read the NXFLAT header from offset 0 */
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2015-10-09 03:20:17 +02:00
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ret = nxflat_read(loadinfo, (FAR char *)&loadinfo->header,
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2009-06-25 23:59:30 +02:00
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sizeof(struct nxflat_hdr_s), 0);
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2009-06-17 18:28:50 +02:00
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if (ret < 0)
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{
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2019-03-19 14:00:54 +01:00
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berr("ERROR: Failed to read NXFLAT header: %d\n", ret);
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2021-02-15 18:15:08 +01:00
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file_close(&loadinfo->file);
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2009-06-17 18:28:50 +02:00
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return ret;
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}
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2015-10-09 03:20:17 +02:00
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nxflat_dumpbuffer("NXFLAT header", (FAR const uint8_t *)&loadinfo->header,
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2009-06-25 23:59:30 +02:00
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sizeof(struct nxflat_hdr_s));
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2009-06-17 18:28:50 +02:00
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/* Verify the NXFLAT header */
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2009-06-25 23:59:30 +02:00
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if (nxflat_verifyheader(&loadinfo->header) != 0)
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2009-06-17 18:28:50 +02:00
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{
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/* This is not an error because we will be called to attempt loading
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* EVERY binary. Returning -ENOEXEC simply informs the system that
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2021-01-12 05:33:46 +01:00
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* the file is not an NXFLAT file. Besides, if there is something
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* worth complaining about, nnxflat_verifyheader() has already
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2009-06-17 18:28:50 +02:00
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* done so.
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*/
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2019-03-19 14:00:54 +01:00
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berr("ERROR: Bad NXFLAT header\n");
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2021-02-15 18:15:08 +01:00
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file_close(&loadinfo->file);
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2009-06-17 18:28:50 +02:00
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return -ENOEXEC;
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}
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2014-04-14 00:22:22 +02:00
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/* Save all of the input values in the loadinfo structure
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2009-06-25 23:59:30 +02:00
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* and extract some additional information from the xflat
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2009-06-17 18:28:50 +02:00
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* header. Note that the information in the xflat header is in
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* network order.
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*/
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2022-01-18 08:38:00 +01:00
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datastart = NTOHL(loadinfo->header.h_datastart);
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dataend = NTOHL(loadinfo->header.h_dataend);
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bssend = NTOHL(loadinfo->header.h_bssend);
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2009-06-17 18:28:50 +02:00
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/* And put this information into the loadinfo structure as well.
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*
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* Note that:
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*
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2009-06-17 20:45:48 +02:00
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* isize = the address range from 0 up to datastart.
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* datasize = the address range from datastart up to dataend
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* bsssize = the address range from dataend up to bssend.
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2009-06-17 18:28:50 +02:00
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*/
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2022-01-18 08:38:00 +01:00
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loadinfo->entryoffs = NTOHL(loadinfo->header.h_entry);
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2009-06-17 20:45:48 +02:00
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loadinfo->isize = datastart;
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2009-06-17 18:28:50 +02:00
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2009-06-17 20:45:48 +02:00
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loadinfo->datasize = dataend - datastart;
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loadinfo->bsssize = bssend - dataend;
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2022-01-18 08:38:00 +01:00
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loadinfo->stacksize = NTOHL(loadinfo->header.h_stacksize);
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2009-06-17 18:28:50 +02:00
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2009-06-17 20:45:48 +02:00
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/* This is the initial dspace size. We'll re-calculate this later
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* after the memory has been allocated.
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2009-06-17 18:28:50 +02:00
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*/
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2009-06-17 20:45:48 +02:00
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loadinfo->dsize = bssend - datastart;
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2009-06-17 18:28:50 +02:00
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/* Get the offset to the start of the relocations (we'll relocate
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* this later).
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*/
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2022-01-18 08:38:00 +01:00
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loadinfo->relocstart = NTOHL(loadinfo->header.h_relocstart);
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2022-06-19 22:24:55 +02:00
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loadinfo->reloccount = NTOHS(loadinfo->header.h_reloccount);
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2009-06-17 18:28:50 +02:00
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return 0;
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}
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