text: // SPDX-License-Identifier: BSD-3-Clause
  //
  // Copyright(c) 2020 Intel Corporation. All rights reserved.
  //
  // Author: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
  
  #include <stdlib.h>
  #include <stdio.h>
  #include <unistd.h>
  #include <errno.h>
  #include <string.h>
  
  #include "elf.h"
  #include "ldc.h"
  #include "smex.h"
  
  static void usage(char *name)
  {
  	fprintf(stdout, "%s:\t in_file\n", name);
  	fprintf(stdout, "\t -l log dictionary outfile\n");
  	fprintf(stdout, "\t -v enable verbose output\n");
  	fprintf(stdout, "\t -h this help message\n");
  	exit(0);
  }
  
  int main(int argc, char *argv[])
  {
  	struct image image;
  	int opt, ret;
  
  	memset(&image, 0, sizeof(image));
  
  	while ((opt = getopt(argc, argv, "hl:v")) != -1) {
  		switch (opt) {
  		case 'l':
  			image.ldc_out_file = optarg;
  			break;
  		case 'v':
  			image.verbose = true;
  			break;
  		case 'h':
  			usage(argv[0]);
  			break;
  		default:
  			break;
  		}
  	}
  
  	/* make sure we have an outfile */
  	if (!image.ldc_out_file)
  		image.ldc_out_file = "out.ldc";
  
  	/* make sure we have an input ELF file */
  	if (argc - optind != 1) {
  		usage(argv[0]);
  		return -EINVAL;
  	}
  
  	/* read source elf file */
  	ret = elf_read_module(&image.module, argv[optind], image.verbose);
  	if (ret < 0)
  		goto out;
  
  	/* open outfile for writing */
  	unlink(image.ldc_out_file);
  	image.ldc_out_fd = fopen(image.ldc_out_file, "wb");
  	if (!image.ldc_out_fd) {
  		fprintf(stderr, "error: unable to open %s for writing %d\n",
  			image.ldc_out_file, errno);
  		ret = -EINVAL;
  		goto out;
  	}
  
  	/* write dictionaries */
  	ret = write_dictionaries(&image, &image.module);
  	if (ret) {
  		fprintf(stderr, "error: unable to write dictionaries, %d\n",
  			ret);
  		/* Don't corrupt the build with an empty or incomplete output */
  		unlink(image.ldc_out_file);
  		goto out;
  	}
  
  out:
  	/* close files */
  	if (image.ldc_out_fd)
  		fclose(image.ldc_out_fd);
  
  	elf_free_module(&image.module);
  
  	return ret;
  }
  