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This is the script I used with [1] to generate the config diffs and separate out the arch specific bits. Included mostly just so people can play around with it if they want to generate their own diffs. [1]: https://github.com/ulfalizer/Kconfiglib Signed-off-by: Tycho Andersen <tycho@docker.com>
85 lines
2.0 KiB
Python
Executable File
85 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python3
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import sys
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import subprocess
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import os.path
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import kconfiglib
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KERNEL_VERSION="4.11.x"
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LINUXKIT_KERNEL=os.path.expanduser("~/packages/linuxkit/kernel")
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def collect_config(f):
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config = {}
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for line in f:
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line = line.strip()
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if line.startswith("# CONFIG_"):
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opt = line[len("# CONFIG_"):-len(" is not set")]
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value = "n"
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elif line.startswith("CONFIG_"):
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[opt, value] = line.strip().split("=")
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opt = opt[len("CONFIG_"):]
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else:
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continue
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config[opt] = value
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return config
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with open(os.path.join(LINUXKIT_KERNEL, "kernel_config-%s" % KERNEL_VERSION)) as f:
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config = collect_config(f)
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opts = sorted(config.keys())
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klib = kconfiglib.Config(sys.argv[1])
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# this needs to be `make defconfig`
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klib.load_config(".config")
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ours = kconfiglib.Config(sys.argv[1])
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ours.load_config(os.path.join(LINUXKIT_KERNEL, "kernel_config-%s" % KERNEL_VERSION))
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arch = []
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generic = []
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for o in opts:
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# our hyperv patch stuff
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if o in ("AF_KCM", "HYPERV_SOCK", "VIRTIO_VSOCKETS", "VIRTIO_VSOCKETS_COMMON", "HYPERV_VSOCKETS"):
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generic.append(o)
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continue
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sym = klib.get_symbol(o)
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if sym is None:
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print("symbol %s unknown" % o)
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sys.exit(1)
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oursym = ours.get_symbol(o)
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if sym is None:
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print("symbol %s unknown" % o)
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sys.exit(1)
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# don't render invisble symbols
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if oursym.get_visibility() == 'n':
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continue
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# If defconfig of this symbol matches our value, we don't need to track it:
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value = config[o]
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if value == sym.get_value():
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continue
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if sym.get_def_locations()[0][0].startswith("arch"):
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arch.append(o)
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else:
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generic.append(o)
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def render_diff(diff):
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for o in sorted(diff):
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value = config[o]
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if value == "n":
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print("# CONFIG_%s is not set" % o)
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else:
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print("CONFIG_%s=%s" % (o, value))
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print("ARCH\n\n")
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render_diff(arch)
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print("\n\nGENRIC\n\n")
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render_diff(generic)
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