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authorPatrick Vacek <patrickvacek@gmail.com>2019-09-06 16:42:37 +0200
committerPatrick Vacek <patrickvacek@gmail.com>2019-09-06 16:42:37 +0200
commite06640f8f1170ad868db3ecb1af9ff1d2f60c1a2 (patch)
tree3eb4a960d616f0e071da26f91ab16a7e42385d56 /scripts/qemucommand.py
parentf4c7b3d831f232c312b50d52ff296c4678eb475b (diff)
downloadmeta-updater-e06640f8f1170ad868db3ecb1af9ff1d2f60c1a2.tar.gz
Copy the image and U-Boot rom when using overlays.
Since bitbake can remove old images that an overlay was non-obviously dependent on, the safest thing to do is make a copy of the image and keep it alongside the overlay. When using the overlay later, automatically use that image. Also do the same thing with the U-Boot rom. This should also make moving the overlay file to another machine much easier. Signed-off-by: Patrick Vacek <patrickvacek@gmail.com>
Diffstat (limited to 'scripts/qemucommand.py')
-rw-r--r--scripts/qemucommand.py50
1 files changed, 42 insertions, 8 deletions
diff --git a/scripts/qemucommand.py b/scripts/qemucommand.py
index a869d4d..9b23c54 100644
--- a/scripts/qemucommand.py
+++ b/scripts/qemucommand.py
@@ -2,6 +2,7 @@ from os.path import exists, isdir, join, realpath, abspath
2from os import listdir 2from os import listdir
3import random 3import random
4import socket 4import socket
5from shutil import copyfile
5from subprocess import check_output 6from subprocess import check_output
6 7
7EXTENSIONS = { 8EXTENSIONS = {
@@ -39,6 +40,8 @@ def random_mac():
39 40
40class QemuCommand(object): 41class QemuCommand(object):
41 def __init__(self, args): 42 def __init__(self, args):
43 self.dry_run = args.dry_run
44 self.overlay = args.overlay
42 if args.machine: 45 if args.machine:
43 self.machine = args.machine 46 self.machine = args.machine
44 else: 47 else:
@@ -49,21 +52,53 @@ class QemuCommand(object):
49 self.machine = machines[0] 52 self.machine = machines[0]
50 else: 53 else:
51 raise ValueError("Could not autodetect machine type. More than one entry in %s. Maybe --machine qemux86-64?" % args.dir) 54 raise ValueError("Could not autodetect machine type. More than one entry in %s. Maybe --machine qemux86-64?" % args.dir)
55
56 # If using an overlay with U-Boot, copy the rom when we create the
57 # overlay so that we can keep it around just in case.
52 if args.efi: 58 if args.efi:
53 self.bios = 'OVMF.fd' 59 self.bios = 'OVMF.fd'
54 else: 60 else:
55 uboot = abspath(join(args.dir, self.machine, 'u-boot-qemux86-64.rom')) 61 uboot_path = abspath(join(args.dir, self.machine, 'u-boot-qemux86-64.rom'))
56 if not exists(uboot): 62 if self.overlay:
57 raise ValueError("U-Boot image %s does not exist" % uboot) 63 new_uboot_path = self.overlay + '.u-boot.rom'
58 self.bios = uboot 64 if not exists(self.overlay):
65 if not exists(uboot_path):
66 raise ValueError("U-Boot image %s does not exist" % uboot_path)
67 if not exists(new_uboot_path):
68 if self.dry_run:
69 print("cp %s %s" % (uboot_path, new_uboot_path))
70 else:
71 copyfile(uboot_path, new_uboot_path)
72 uboot_path = new_uboot_path
73 if not exists(uboot_path) and not (self.dry_run and not exists(self.overlay)):
74 raise ValueError("U-Boot image %s does not exist" % uboot_path)
75 self.bios = uboot_path
76
77 # If using an overlay, we need to keep the "backing" image around, as
78 # bitbake will often clean it up, and the overlay silently depends on
79 # the hardcoded path. The easiest solution is to keep the file and use
80 # a relative path to it.
59 if exists(args.imagename): 81 if exists(args.imagename):
60 image = args.imagename 82 image = realpath(args.imagename)
61 else: 83 else:
62 ext = EXTENSIONS.get(self.machine, 'wic') 84 ext = EXTENSIONS.get(self.machine, 'wic')
63 image = join(args.dir, self.machine, '%s-%s.%s' % (args.imagename, self.machine, ext)) 85 image = join(args.dir, self.machine, '%s-%s.%s' % (args.imagename, self.machine, ext))
64 self.image = realpath(image) 86 if self.overlay:
65 if not exists(self.image): 87 new_image_path = self.overlay + '.img'
88 if not exists(self.overlay):
89 if not exists(image):
90 raise ValueError("OS image %s does not exist" % image)
91 if not exists(new_image_path):
92 if self.dry_run:
93 print("cp %s %s" % (image, new_image_path))
94 else:
95 copyfile(image, new_image_path)
96 self.image = new_image_path
97 else:
98 self.image = realpath(image)
99 if not exists(self.image) and not (self.dry_run and not exists(self.overlay)):
66 raise ValueError("OS image %s does not exist" % self.image) 100 raise ValueError("OS image %s does not exist" % self.image)
101
67 if args.mac: 102 if args.mac:
68 self.mac_address = args.mac 103 self.mac_address = args.mac
69 else: 104 else:
@@ -86,7 +121,6 @@ class QemuCommand(object):
86 self.gui = not args.no_gui 121 self.gui = not args.no_gui
87 self.gdb = args.gdb 122 self.gdb = args.gdb
88 self.pcap = args.pcap 123 self.pcap = args.pcap
89 self.overlay = args.overlay
90 self.secondary_network = args.secondary_network 124 self.secondary_network = args.secondary_network
91 125
92 def command_line(self): 126 def command_line(self):