From ba9be4bfa58efc73f1485eb5dc0dff0d23716821 Mon Sep 17 00:00:00 2001 From: Joshua Watt Date: Tue, 2 Jun 2020 08:42:05 -0500 Subject: wic: Add --offset argument for partitions Add support for an --offset argument when defining a partition. Many SoCs require that boot partitions be located at specific offsets. Prior to this argument, most WKS files were using the --align attribute to specify the location of these fixed partitions but this is not ideal because in the event that the partition couldn't be placed in the specified location, wic would move it to the next sector with that alignment, often preventing the device from booting. Unlike the --align argument, wic will fail if a partition cannot be placed at the exact offset specified with --offset. Changes in V2: * Fixed a small typo that prevented test_fixed_size_error from passing (From OE-Core rev: 467f84e12b96bc977d57575023517dd6f8ef7f29) Signed-off-by: Joshua Watt Signed-off-by: Richard Purdie --- scripts/lib/wic/ksparser.py | 46 +++++++++++++++++++++++++-------------------- 1 file changed, 26 insertions(+), 20 deletions(-) (limited to 'scripts/lib/wic/ksparser.py') diff --git a/scripts/lib/wic/ksparser.py b/scripts/lib/wic/ksparser.py index b8befe78e3..05ae292ef5 100644 --- a/scripts/lib/wic/ksparser.py +++ b/scripts/lib/wic/ksparser.py @@ -51,26 +51,31 @@ class KickStartParser(ArgumentParser): def error(self, message): raise ArgumentError(None, message) -def sizetype(arg): - """ - Custom type for ArgumentParser - Converts size string in [K|k|M|G] format into the integer value - """ - if arg.isdigit(): - return int(arg) * 1024 +def sizetype(default): + def f(arg): + """ + Custom type for ArgumentParser + Converts size string in [K|k|M|G] format into the integer value + """ + try: + suffix = default + size = int(arg) + except ValueError: + try: + suffix = arg[-1:] + size = int(arg[:-1]) + except ValueError: + raise ArgumentTypeError("Invalid size: %r" % arg) + + if suffix == "k" or suffix == "K": + return size + if suffix == "M": + return size * 1024 + if suffix == "G": + return size * 1024 * 1024 - if not arg[:-1].isdigit(): raise ArgumentTypeError("Invalid size: %r" % arg) - - size = int(arg[:-1]) - if arg.endswith("k") or arg.endswith("K"): - return size - if arg.endswith("M"): - return size * 1024 - if arg.endswith("G"): - return size * 1024 * 1024 - - raise ArgumentTypeError("Invalid size: %r" % arg) + return f def overheadtype(arg): """ @@ -136,6 +141,7 @@ class KickStart(): part.add_argument('mountpoint', nargs='?') part.add_argument('--active', action='store_true') part.add_argument('--align', type=int) + part.add_argument('--offset', type=sizetype("K")) part.add_argument('--exclude-path', nargs='+') part.add_argument('--include-path', nargs='+', action='append') part.add_argument('--change-directory') @@ -161,8 +167,8 @@ class KickStart(): # --error, but since nesting mutually exclusive groups does not work, # ----extra-space/--overhead-factor are handled later sizeexcl = part.add_mutually_exclusive_group() - sizeexcl.add_argument('--size', type=sizetype, default=0) - sizeexcl.add_argument('--fixed-size', type=sizetype, default=0) + sizeexcl.add_argument('--size', type=sizetype("M"), default=0) + sizeexcl.add_argument('--fixed-size', type=sizetype("M"), default=0) part.add_argument('--source') part.add_argument('--sourceparams') -- cgit v1.2.3-54-g00ecf