3rd-party/linux-kernel-module-cheat
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split --prebuilt and --host into --gcc-which and --qemu-which

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Only one --host exists at ./build-modules, since that can select the host
kernel, which is independent from the toolchain.

Document that user mode simulation stopped working.
This commit is contained in:
Ciro Santilli 六四事件 法轮功
2019-02-16 00:00:00 +00:00
parent 01194dda5c
commit a8b6f758ba
10 changed files with 294 additions and 142 deletions
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156
common.py
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@@ -141,7 +141,9 @@ class LkmcCliFunction(cli_function.CliFunction):
arches_string.append('{} ({})'.format(arch_long, arch_short))
arches_string = ', '.join(arches_string)
self.add_argument(
'-A', '--all-archs', default=False,
'-A',
'--all-archs',
default=False,
help='''\
Run action for all supported --archs archs. Ignore --archs.
'''.format(arches_string)
@@ -180,14 +182,34 @@ mkdir are generally omitted since those are obvious
'''
)
self.add_argument(
'--print-time', default=True,
'--gcc-which',
choices=[
'buildroot',
'crosstool-ng',
'host',
'host-baremetal'
],
default='buildroot',
help='''\
Which toolchain binaries to use:
- buildroot: the ones we built with ./build-buildroot. For userland, links to glibc.
- crosstool-ng: the ones we built with ./build-crosstool-ng. For baremetal, links to newlib.
- host: the host distro pre-packaged userland ones. For userland, links to glibc.
- host-baremetal: the host distro pre-packaged bare one. For baremetal, links to newlib.
'''
)
self.add_argument(
'--print-time',
default=True,
help='''\
Print how long it took to run the command at the end.
Implied by --quiet.
'''
)
self.add_argument(
'-q', '--quiet', default=False,
'-q',
'--quiet',
default=False,
help='''\
Don't print anything to stdout, except if it is part of an interactive terminal.
TODO: implement fully, some stuff is escaping it currently.
@@ -201,7 +223,9 @@ Stop running at the first failed test.
'''
)
self.add_argument(
'-v', '--verbose', default=False,
'-v',
'--verbose',
default=False,
help='Show full compilation commands when they are not shown by default.'
)
@@ -218,14 +242,16 @@ Ignore --gem5-build-id and --gem5-build-type.
'''
)
self.add_argument(
'-M', '--gem5-build-id',
'-M',
'--gem5-build-id',
help='''\
gem5 build ID. Allows you to keep multiple separate gem5 builds.
Default: {}
'''.format(consts['default_build_id'])
)
self.add_argument(
'--gem5-build-type', default='opt',
'--gem5-build-type',
default='opt',
help='gem5 build type, most often used for "debug" builds.'
)
self.add_argument(
@@ -235,7 +261,8 @@ Use the given directory as the gem5 source tree. Ignore `--gem5-worktree`.
'''
)
self.add_argument(
'-N', '--gem5-worktree',
'-N',
'--gem5-worktree',
help='''\
Create and use a git worktree of the gem5 submodule.
See: https://github.com/cirosantilli/linux-kernel-module-cheat#gem5-worktree
@@ -250,7 +277,9 @@ Use the given directory as the Linux build directory. Ignore --linux-build-id.
'''
)
self.add_argument(
'-L', '--linux-build-id', default=consts['default_build_id'],
'-L',
'--linux-build-id',
default=consts['default_build_id'],
help='''\
Linux build ID. Allows you to keep multiple separate Linux builds.
'''
@@ -280,7 +309,8 @@ See: https://github.com/cirosantilli/linux-kernel-module-cheat#initrd
# Baremetal.
self.add_argument(
'-b', '--baremetal',
'-b',
'--baremetal',
help='''\
Use the given baremetal executable instead of the Linux kernel.
@@ -298,13 +328,16 @@ inside baremetal/ and then try to use corresponding executable.
help='Buildroot build ID. Allows you to keep multiple separate gem5 builds.'
)
self.add_argument(
'--buildroot-linux', default=False,
'--buildroot-linux',
default=False,
help='Boot with the Buildroot Linux kernel instead of our custom built one. Mostly for sanity checks.'
)
# Android.
self.add_argument(
'--rootfs-type', default='buildroot', choices=('buildroot', 'android'),
'--rootfs-type',
default='buildroot',
choices=('buildroot', 'android'),
help='Which rootfs to use.'
)
self.add_argument(
@@ -322,11 +355,13 @@ of SSD.
# crosstool-ng
self.add_argument(
'--crosstool-ng-build-id', default=consts['default_build_id'],
'--crosstool-ng-build-id',
default=consts['default_build_id'],
help='Crosstool-NG build ID. Allows you to keep multiple separate crosstool-NG builds.'
)
self.add_argument(
'--docker', default=False,
'--docker',
default=False,
help='''\
Use the docker download Ubuntu root filesystem instead of the default Buildroot one.
'''
@@ -334,9 +369,21 @@ Use the docker download Ubuntu root filesystem instead of the default Buildroot
# QEMU.
self.add_argument(
'-Q', '--qemu-build-id', default=consts['default_build_id'],
'-Q',
'--qemu-build-id',
default=consts['default_build_id'],
help='QEMU build ID. Allows you to keep multiple separate QEMU builds.'
)
self.add_argument(
'--qemu-which',
choices=['lkmc', 'host'],
default='lkmc',
help='''\
Which qemu binaries to use: qemu-system-, qemu-, qemu-img, etc.:
- lkmc: the ones we built with ./build-qemu
- host: the host distro pre-packaged provided ones
'''
)
self.add_argument(
'--machine',
help='''\
@@ -513,9 +560,9 @@ Valid emulators: {}
env['buildroot_build_build_dir'] = join(env['buildroot_build_dir'], 'build')
env['buildroot_linux_build_dir'] = join(env['buildroot_build_build_dir'], 'linux-custom')
env['buildroot_vmlinux'] = join(env['buildroot_linux_build_dir'], 'vmlinux')
env['host_dir'] = join(env['buildroot_build_dir'], 'host')
env['host_bin_dir'] = join(env['host_dir'], 'usr', 'bin')
env['buildroot_pkg_config'] = join(env['host_bin_dir'], 'pkg-config')
env['buildroot_host_dir'] = join(env['buildroot_build_dir'], 'host')
env['buildroot_host_bin_dir'] = join(env['buildroot_host_dir'], 'usr', 'bin')
env['buildroot_pkg_config'] = join(env['buildroot_host_bin_dir'], 'pkg-config')
env['buildroot_images_dir'] = join(env['buildroot_build_dir'], 'images')
env['buildroot_rootfs_raw_file'] = join(env['buildroot_images_dir'], 'rootfs.ext2')
env['buildroot_qcow2_file'] = env['buildroot_rootfs_raw_file'] + '.qcow2'
@@ -737,6 +784,37 @@ Valid emulators: {}
lunch aosp_{}-eng
'''.format(self.env['android_arch'])
# Toolchain choice.
if not env['_args_given']['gcc_which']:
if env['baremetal']:
env['gcc_which'] = 'crosstool-ng'
if env['gcc_which'] == 'buildroot':
env['toolchain_prefix'] = os.path.join(
env['buildroot_host_bin_dir'],
env['buildroot_toolchain_prefix']
)
env['userland_library_dir'] = env['target_dir']
elif env['gcc_which'] == 'crosstool-ng':
env['toolchain_prefix'] = os.path.join(
env['crosstool_ng_bin_dir'],
env['crosstool_ng_toolchain_prefix']
)
elif env['gcc_which'] == 'host':
env['toolchain_prefix'] = env['ubuntu_toolchain_prefix']
if env['arch'] == 'x86_64':
env['userland_library_dir'] = '/'
elif env['arch'] == 'arm':
env['userland_library_dir'] = '/usr/arm-linux-gnueabihf'
elif env['arch'] == 'aarch64':
env['userland_library_dir'] = '/usr/aarch64-linux-gnu/'
elif env['gcc_which'] == 'host-baremetal':
if env['arch'] == 'arm':
env['toolchain_prefix'] = 'arm-none-eabi'
else:
raise Exception('There is no host baremetal chain for arch: ' + env['arch'])
else:
raise Exception('Unknown toolchain: ' + env['gcc_which'])
def add_argument(self, *args, **kwargs):
'''
Also handle:
@@ -805,44 +883,8 @@ lunch aosp_{}-eng
ret.append(cols[1])
return ret
def get_toolchain_prefix(self, tool, allowed_toolchains=None):
buildroot_full_prefix = os.path.join(self.env['host_bin_dir'], self.env['buildroot_toolchain_prefix'])
buildroot_exists = os.path.exists('{}-{}'.format(buildroot_full_prefix, tool))
crosstool_ng_full_prefix = os.path.join(self.env['crosstool_ng_bin_dir'], self.env['crosstool_ng_toolchain_prefix'])
crosstool_ng_exists = os.path.exists('{}-{}'.format(crosstool_ng_full_prefix, tool))
host_tool = '{}-{}'.format(self.env['ubuntu_toolchain_prefix'], tool)
host_path = shutil.which(host_tool)
if host_path is not None:
host_exists = True
host_full_prefix = host_path[:-(len(tool)+1)]
else:
host_exists = False
host_full_prefix = None
known_toolchains = {
'crosstool-ng': (crosstool_ng_exists, crosstool_ng_full_prefix),
'buildroot': (buildroot_exists, buildroot_full_prefix),
'host': (host_exists, host_full_prefix),
}
if allowed_toolchains is None:
if self.env['baremetal'] is None:
allowed_toolchains = ['buildroot', 'crosstool-ng', 'host']
else:
allowed_toolchains = ['crosstool-ng', 'buildroot', 'host']
tried = []
for toolchain in allowed_toolchains:
exists, prefix = known_toolchains[toolchain]
tried.append('{}-{}'.format(prefix, tool))
if exists:
return prefix
error_message = 'Tool not found. Tried:\n' + '\n'.join(tried)
if self.env['dry_run']:
self.log_error(error_message)
return ''
else:
raise Exception(error_message)
def get_toolchain_tool(self, tool, allowed_toolchains=None):
return '{}-{}'.format(self.get_toolchain_prefix(tool, allowed_toolchains), tool)
def get_toolchain_tool(self, tool):
return '{}-{}'.format(self.env['toolchain_prefix'], tool)
def github_make_request(
self,
@@ -1010,8 +1052,8 @@ lunch aosp_{}-eng
if self.env['print_time'] and not self.env['quiet']:
print('time {}'.format(self.seconds_to_hms(ellapsed_seconds)))
def raw_to_qcow2(self, prebuilt=False, reverse=False):
if prebuilt or not os.path.exists(self.env['qemu_img_executable']):
def raw_to_qcow2(self, qemu_which=False, reverse=False):
if qemu_which == 'host' or not os.path.exists(self.env['qemu_img_executable']):
disable_trace = []
qemu_img_executable = self.env['qemu_img_basename']
else: