160 lines
6.1 KiB
Python
160 lines
6.1 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2020
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# Author: Sam Protsenko <joe.skb7@gmail.com>
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# Test U-Boot's "abootimg" commands.
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import os
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import pytest
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import u_boot_utils
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"""
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These tests rely on disk image (boot.img), which is automatically created by
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the test from the stored hex dump. This is done to avoid the dependency on the
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most recent mkbootimg tool from AOSP/master. Here is the list of commands which
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was used to generate the boot.img and obtain compressed hex dump from it:
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$ echo '/dts-v1/; / { model = "x1"; compatible = "y1,z1"; };' > test1.dts
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$ echo '/dts-v1/; / { model = "x2"; compatible = "y2,z2"; };' > test2.dts
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$ dtc test1.dts > dt1.dtb
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$ dtc test2.dts > dt2.dtb
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$ cat dt1.dtb dt2.dtb > dtb.img
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$ echo 'kernel payload' > kernel
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$ echo 'ramdisk payload' > ramdisk.img
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$ mkbootimg --kernel ./kernel --ramdisk ./ramdisk.img \
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--cmdline "cmdline test" --dtb ./dtb.img \
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--os_version R --os_patch_level 2019-06-05 \
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--header_version 2 --output boot.img
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$ gzip -9 boot.img
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$ xxd -p boot.img.gz > boot.img.gz.hex
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Now one can obtain original boot.img from this hex dump like this:
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$ xxd -r -p boot.img.gz.hex boot.img.gz
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$ gunzip -9 boot.img.gz
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"""
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# boot.img.gz hex dump
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img_hex = """1f8b08084844af5d0203626f6f742e696d670073f47309f2f77451e46700
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820606010106301084501f04181819041838181898803c3346060c909c9b
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92939997aa50925a5cc2300a461c3078b2e1793c4b876fd92db97939fb6c
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b7762ffff07d345446c1281805e8a0868d81e117a45e111c0d8dc101b253
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8bf25273140a122b73f21353b8460364148c8251300a46c1281801a02831
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3725b3387bb401300a46c1281805a360148c207081f7df5b20550bc41640
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9c03c41a0c90f17fe85400986d82452b6c3680198a192a0ce17c3610ae34
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d4a9820881a70f3873f35352731892f3730b124b32937252a96bb9119ae5
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463a5546f82c1f05a360148c8251300a462e000085bf67f200200000"""
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# Expected response for "abootimg dtb_dump" command
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dtb_dump_resp="""## DTB area contents (concat format):
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- DTB #0:
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(DTB)size = 125
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(DTB)model = x1
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(DTB)compatible = y1,z1
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- DTB #1:
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(DTB)size = 125
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(DTB)model = x2
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(DTB)compatible = y2,z2"""
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# Address in RAM where to load the boot image ('abootimg' looks in $loadaddr)
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loadaddr = 0x1000
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# Expected DTB #1 offset from the boot image start address
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dtb1_offset = 0x187d
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# DTB #1 start address in RAM
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dtb1_addr = loadaddr + dtb1_offset
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class AbootimgTestDiskImage(object):
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"""Disk image used by abootimg tests."""
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def __init__(self, u_boot_console):
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"""Initialize a new AbootimgDiskImage object.
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Args:
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u_boot_console: A U-Boot console.
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Returns:
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Nothing.
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"""
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gz_hex = u_boot_console.config.persistent_data_dir + '/boot.img.gz.hex'
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gz = u_boot_console.config.persistent_data_dir + '/boot.img.gz'
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filename = 'boot.img'
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persistent = u_boot_console.config.persistent_data_dir + '/' + filename
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self.path = u_boot_console.config.result_dir + '/' + filename
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with u_boot_utils.persistent_file_helper(u_boot_console.log, persistent):
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if os.path.exists(persistent):
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u_boot_console.log.action('Disk image file ' + persistent +
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' already exists')
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else:
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u_boot_console.log.action('Generating ' + persistent)
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f = open(gz_hex, "w")
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f.write(img_hex)
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f.close()
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cmd = ('xxd', '-r', '-p', gz_hex, gz)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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cmd = ('gunzip', '-9', gz)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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cmd = ('cp', persistent, self.path)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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gtdi = None
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@pytest.fixture(scope='function')
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def abootimg_disk_image(u_boot_console):
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"""pytest fixture to provide a AbootimgTestDiskImage object to tests.
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This is function-scoped because it uses u_boot_console, which is also
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function-scoped. However, we don't need to actually do any function-scope
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work, so this simply returns the same object over and over each time."""
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global gtdi
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if not gtdi:
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gtdi = AbootimgTestDiskImage(u_boot_console)
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return gtdi
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('android_boot_image')
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@pytest.mark.buildconfigspec('cmd_abootimg')
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@pytest.mark.buildconfigspec('cmd_fdt')
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@pytest.mark.requiredtool('xxd')
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@pytest.mark.requiredtool('gunzip')
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def test_abootimg(abootimg_disk_image, u_boot_console):
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"""Test the 'abootimg' command."""
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u_boot_console.log.action('Loading disk image to RAM...')
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u_boot_console.run_command('setenv loadaddr 0x%x' % (loadaddr))
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u_boot_console.run_command('host load hostfs - 0x%x %s' % (loadaddr,
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abootimg_disk_image.path))
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u_boot_console.log.action('Testing \'abootimg get ver\'...')
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response = u_boot_console.run_command('abootimg get ver')
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assert response == "2"
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u_boot_console.run_command('abootimg get ver v')
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response = u_boot_console.run_command('env print v')
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assert response == 'v=2'
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u_boot_console.log.action('Testing \'abootimg get recovery_dtbo\'...')
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response = u_boot_console.run_command('abootimg get recovery_dtbo a')
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assert response == 'Error: recovery_dtbo_size is 0'
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u_boot_console.log.action('Testing \'abootimg dump dtb\'...')
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response = u_boot_console.run_command('abootimg dump dtb').replace('\r', '')
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assert response == dtb_dump_resp
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u_boot_console.log.action('Testing \'abootimg get dtb_load_addr\'...')
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u_boot_console.run_command('abootimg get dtb_load_addr a')
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response = u_boot_console.run_command('env print a')
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assert response == 'a=11f00000'
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u_boot_console.log.action('Testing \'abootimg get dtb --index\'...')
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u_boot_console.run_command('abootimg get dtb --index=1 dtb1_start')
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response = u_boot_console.run_command('env print dtb1_start')
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correct_str = "dtb1_start=%x" % (dtb1_addr)
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assert response == correct_str
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u_boot_console.run_command('fdt addr $dtb1_start')
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u_boot_console.run_command('fdt get value v / model')
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response = u_boot_console.run_command('env print v')
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assert response == 'v=x2'
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