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investigate squashfs to overcome BR2_TARGET_ROOTFS_EXT2_SIZE but fail

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Generate qcow2 when running QEMU if it is not present.
This commit is contained in:
Ciro Santilli 六四事件 法轮功
2018-09-15 20:29:09 +01:00
parent 8372b1653c
commit 762bb78d89
6 changed files with 63 additions and 39 deletions
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31
run
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@@ -125,7 +125,7 @@ def main(args, extra_args=None):
os.path.join(common.gem5_src_dir, 'configs', 'example', 'arm', 'fs_bigLITTLE.py'),
'--big-cpus', '2',
'--cpu-type', 'atomic',
'--disk', common.ext2_file,
'--disk', common.rootfs_raw_file,
'--dtb', os.path.join(common.gem5_system_dir, 'arm', 'dt', 'armv8_gem5_v1_big_little_2_2.dtb'),
'--kernel', common.vmlinux,
'--little-cpus', '2'
@@ -138,7 +138,7 @@ def main(args, extra_args=None):
extra_emulator_args.extend(['-r', str(sorted(cpt_dirs).index(cpt_dir) + 1)])
cmd += [
common.gem5_fs_file,
'--disk-image', common.ext2_file,
'--disk-image', common.rootfs_raw_file,
'--kernel', common.vmlinux,
'--mem-size', memory,
'--num-cpus', str(args.cpus),
@@ -159,6 +159,19 @@ def main(args, extra_args=None):
else:
extra_emulator_args.extend(extra_qemu_args)
os.makedirs(common.run_dir, exist_ok=True)
if args.prebuilt:
common.mkdir()
qemu_executable = "qemu-system-{}".format(args.arch)
else:
qemu_executable = common.qemu_executable
if not os.path.exists(qemu_executable):
raise Exception('QEMU executable does not exist, did you forget to build or install it?\n' \
'Tried to use: ' + qemu_executable)
if not os.path.exists(common.qcow2_file):
if not os.path.exists(common.rootfs_raw_file):
raise Exception('Root filesystem not found. Did you build it?\n' \
'Tried to use: ' + common.rootfs_raw_file)
common.raw_to_qcow2()
if args.debug_vm:
serial_monitor = []
else:
@@ -167,11 +180,6 @@ def main(args, extra_args=None):
extra_emulator_args.append('-enable-kvm')
if args.kgdb:
extra_emulator_args.extend(['-serial', 'tcp::{},server,nowait'.format(common.gdb_port)])
if args.prebuilt:
common.mkdir()
qemu_executable = "qemu-system-{}".format(args.arch)
else:
qemu_executable = common.qemu_executable
cmd = (
debug_vm +
[
@@ -212,12 +220,6 @@ def main(args, extra_args=None):
'-drive',
'file={},format=qcow2,if={}{}{}'.format(common.qcow2_file, driveif, snapshot, rrid)
])
if not os.path.exists(common.qcow2_file):
raise Exception(
'Cannot find the qcow2 root filesystem. You must build QEMU\n'
'before building the root filesystem? That is needed because the qcow2\n' +
'is created with qemu-img. Tried to use: ' + qemu_executable
)
if rr:
extra_emulator_args.extend([
'-drive', 'driver=blkreplay,if=none,image=img-direct,id=img-blkreplay',
@@ -257,9 +259,6 @@ def main(args, extra_args=None):
] +
virtio_gpu_pci
)
if not os.path.exists(qemu_executable):
raise Exception('QEMU executable does not exist, did you forget to build or install it?\n' +
'Tried to use: ' + qemu_executable)
if args.tmux:
if args.gem5:
subprocess.Popen([os.path.join(common.root_dir, 'tmu'),