wic: Add 512 Byte alignment to --offset

Allows the --offset argument to use the "s" or "S" suffix to specify
that it is reporting the number of 512 byte sectors.

This is required for some SoCs where the mask ROM looks for an item at a
sector that isn't aligned to a 1KB boundary.

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/lib/oeqa/selftest/cases/wic.py b/meta/lib/oeqa/selftest/cases/wic.py
index 8b58285c3254d356574c632ce3c90803e3b163bb..e6b23c6888a3614c16fcbb85354d6b40cd421a1f 100644 (file)
--- a/meta/lib/oeqa/selftest/cases/wic.py
+++ b/meta/lib/oeqa/selftest/cases/wic.py
@@ -889,6 +889,30 @@ class Wic2(WicTestCase):
                 "2:103424kiB:205824kiB:102400kiB:ext4:primary:;",
                 ])
 
+        with NamedTemporaryFile("w", suffix=".wks") as tempf:
+            # Test that partitions can be placed on a 512 byte sector boundary
+            tempf.write("bootloader --ptable gpt\n" \
+                        "part /    --source rootfs --ondisk hda --offset 65s --fixed-size 99M --fstype=ext4\n" \
+                        "part /bar                 --ondisk hda --offset 102432 --fixed-size 100M --fstype=ext4\n")
+            tempf.flush()
+
+            _, partlns = self._get_wic_partitions(tempf.name, native_sysroot)
+            self.assertEqual(partlns, [
+                "1:32.5kiB:101408kiB:101376kiB:ext4:primary:;",
+                "2:102432kiB:204832kiB:102400kiB:ext4:primary:;",
+                ])
+
+        with NamedTemporaryFile("w", suffix=".wks") as tempf:
+            # Test that a partition can be placed immediately after a MSDOS partition table
+            tempf.write("bootloader --ptable msdos\n" \
+                        "part /    --source rootfs --ondisk hda --offset 1s --fixed-size 100M --fstype=ext4\n")
+            tempf.flush()
+
+            _, partlns = self._get_wic_partitions(tempf.name, native_sysroot)
+            self.assertEqual(partlns, [
+                "1:0.50kiB:102400kiB:102400kiB:ext4::;",
+                ])
+
         with NamedTemporaryFile("w", suffix=".wks") as tempf:
             # Test that image creation fails if the partitions would overlap
             tempf.write("bootloader --ptable gpt\n" \

diff --git a/scripts/lib/wic/ksparser.py b/scripts/lib/wic/ksparser.py
index 3453d9cb9d313a3e99a3ad871c29311a1eb591ff..913e3283dc5d88f6182acb96de94dbe8af31fab4 100644 (file)
--- a/scripts/lib/wic/ksparser.py
+++ b/scripts/lib/wic/ksparser.py
@@ -51,11 +51,11 @@ class KickStartParser(ArgumentParser):
     def error(self, message):
         raise ArgumentError(None, message)
 
-def sizetype(default):
+def sizetype(default, size_in_bytes=False):
     def f(arg):
         """
         Custom type for ArgumentParser
-        Converts size string in <num>[K|k|M|G] format into the integer value
+        Converts size string in <num>[S|s|K|k|M|G] format into the integer value
         """
         try:
             suffix = default
@@ -67,12 +67,20 @@ def sizetype(default):
             except ValueError:
                 raise ArgumentTypeError("Invalid size: %r" % arg)
 
+
+        if size_in_bytes:
+            if suffix == 's' or suffix == 'S':
+                return size * 512
+            mult = 1024
+        else:
+            mult = 1
+
         if suffix == "k" or suffix == "K":
-            return size
+            return size * mult
         if suffix == "M":
-            return size * 1024
+            return size * mult * 1024
         if suffix == "G":
-            return size * 1024 * 1024
+            return size * mult * 1024 * 1024
 
         raise ArgumentTypeError("Invalid size: %r" % arg)
     return f
@@ -141,7 +149,7 @@ 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('--offset', type=sizetype("K", True))
         part.add_argument('--exclude-path', nargs='+')
         part.add_argument('--include-path', nargs='+', action='append')
         part.add_argument('--change-directory')

diff --git a/scripts/lib/wic/plugins/imager/direct.py b/scripts/lib/wic/plugins/imager/direct.py
index 2f019994053acf05b6f7d8ecead92c62d76261f2..55db826e939a8795210891c2e16de25d725ae14c 100644 (file)
--- a/scripts/lib/wic/plugins/imager/direct.py
+++ b/scripts/lib/wic/plugins/imager/direct.py
@@ -429,14 +429,14 @@ class PartitionedImage():
                     self.offset += align_sectors
 
             if part.offset is not None:
-                offset = (part.offset * 1024) // self.sector_size
+                offset = part.offset // self.sector_size
 
-                if offset * self.sector_size != part.offset * 1024:
-                    raise WicError("Could not place %s%s at offset %dK with sector size %d" % (part.disk, self.numpart, part.offset, self.sector_size))
+                if offset * self.sector_size != part.offset:
+                    raise WicError("Could not place %s%s at offset %d with sector size %d" % (part.disk, self.numpart, part.offset, self.sector_size))
 
                 delta = offset - self.offset
                 if delta < 0:
-                    raise WicError("Could not place %s%s at offset %dK: next free sector is %d (delta: %d)" % (part.disk, self.numpart, part.offset, self.offset, delta))
+                    raise WicError("Could not place %s%s at offset %d: next free sector is %d (delta: %d)" % (part.disk, self.numpart, part.offset, self.offset, delta))
 
                 logger.debug("Skipping %d sectors to place %s%s at offset %dK",
                              delta, part.disk, self.numpart, part.offset)