TRS recipes

TRS levarage various layers and recipes to build firmware, root filesystem and various images. These can be found after doing a build according to the build instructions in this TRS documentation.

Helper scripts

Recipe finder

The script below comes from scripts/list_recipies.py in the TRS documentation. This script will find the packages that are being compiled and the belong bb-file for it. To run this script you first need to generate the a file called task-depends.dot. You generate that by doing:

$ bitbake -e <image-name>

For Trusted Substrate with QEMU for example this can be achieved by running

$ kas shell ci/qemuarm64-secureboot.yml
$ bitbake -e ts-firmware

Once that has completed you should be able to find .../build/task-depends.dot. With that available, go the folder where list_recipies.py is located and run the script:

$ ./list_recipies.py -f <full-path-to>/task-depends.dot

If you’re searching for a certain package, you can use the -p parameter.

$ ./list_recipies.py -f <full-path-to>/task-depends.dot -p op-tee

If you also want to see the content of the specified package you can use the -d parameter.

$ ./list_recipies.py -f <full-path-to>/task-depends.dot -p op-tee -d

 1#!/usr/bin/env python
 2
 3from argparse import ArgumentParser
 4import os
 5
 6
 7def get_parser():
 8    """ Takes care of script argument parsing. """
 9    parser = ArgumentParser(description='Script used to find the location of '
10                                        'recipes in Yocto builds')
11
12    parser.add_argument('-d', '--dump', required=False, action="store_true",
13                        help='Dump contents of the found recipe(s)')
14
15    parser.add_argument('-p', '--package', required=False, action="store",
16                        help='Query for a single package')
17
18    parser.add_argument('-f', '--file', required=False, action="store",
19                        default="task-depends.dot",
20                        help='File generated by bitbake -g <image-name>')
21
22    return parser
23
24
25def dump_recipe_content(recipe):
26    with open(recipe, encoding='utf-8') as f:
27        data = f.readlines()
28        print("-" * 80)
29        for line in data:
30            line.strip()
31            print("    {}".format(line))
32        print("-" * 80)
33
34
35def parse_dependencies(filename, search=None, dump=None):
36    tasks = None
37    with open(filename, encoding='utf-8') as f:
38        tasks = f.readlines()
39
40    print("{}{}".format("Package".ljust(40), "recipe"))
41    print("{}{}".format("=======".ljust(40), "======="))
42    for task in tasks:
43        task = task.strip()
44        if "do_compile" in task and "label" in task:
45            data = task.split()
46
47            package = data[0].replace('\"', '')
48            package = package.replace('.do_compile', '')
49
50            recipe = data[2].split(':')[-1]
51            recipe = recipe.split('\\n')[-1]
52            recipe = recipe.replace('"]', '')
53            tmp = recipe.split('/')
54            count = 0
55            for j in tmp:
56                if j == "..":
57                    break
58                count += 1
59            del tmp[count-1:count+1]
60            recipe = '/'.join(tmp)
61            if search is None:
62                print("{}{}".format(package.ljust(40), recipe))
63            elif search in package:
64                print("{}{}".format(package.ljust(40), recipe))
65                if dump:
66                    dump_recipe_content(recipe)
67
68
69def main():
70    args = get_parser().parse_args()
71    parse_dependencies(args.file, args.package, args.dump)
72
73
74if __name__ == '__main__':
75    main()