From: Stefan Herbrechtsmeier stefan.herbrechtsmeier@weidmueller.com
Remove the obsolete compressed data header handling from the utilities to compress and decompress data. The header is uncommon, not supported by U-Boot and incompatible with external compressed artifacts.
Signed-off-by: Stefan Herbrechtsmeier stefan.herbrechtsmeier@weidmueller.com ---
Changes in v3: - Added
tools/binman/cbfs_util.py | 8 ++++---- tools/binman/comp_util.py | 11 ++--------- tools/binman/entry.py | 4 ++-- tools/binman/etype/section.py | 3 +-- tools/binman/ftest.py | 10 ++++------ 5 files changed, 13 insertions(+), 23 deletions(-)
diff --git a/tools/binman/cbfs_util.py b/tools/binman/cbfs_util.py index 9cad03886f..a1836f4ad3 100644 --- a/tools/binman/cbfs_util.py +++ b/tools/binman/cbfs_util.py @@ -241,9 +241,9 @@ class CbfsFile(object): """Handle decompressing data if necessary""" indata = self.data if self.compress == COMPRESS_LZ4: - data = comp_util.decompress(indata, 'lz4', with_header=False) + data = comp_util.decompress(indata, 'lz4') elif self.compress == COMPRESS_LZMA: - data = comp_util.decompress(indata, 'lzma', with_header=False) + data = comp_util.decompress(indata, 'lzma') else: data = indata self.memlen = len(data) @@ -362,9 +362,9 @@ class CbfsFile(object): elif self.ftype == TYPE_RAW: orig_data = data if self.compress == COMPRESS_LZ4: - data = comp_util.compress(orig_data, 'lz4', with_header=False) + data = comp_util.compress(orig_data, 'lz4') elif self.compress == COMPRESS_LZMA: - data = comp_util.compress(orig_data, 'lzma', with_header=False) + data = comp_util.compress(orig_data, 'lzma') self.memlen = len(orig_data) self.data_len = len(data) attr = struct.pack(ATTR_COMPRESSION_FORMAT, diff --git a/tools/binman/comp_util.py b/tools/binman/comp_util.py index dc76adab35..269bbf7975 100644 --- a/tools/binman/comp_util.py +++ b/tools/binman/comp_util.py @@ -3,7 +3,6 @@ # """Utilities to compress and decompress data"""
-import struct import tempfile
from binman import bintool @@ -16,7 +15,7 @@ LZMA_ALONE = bintool.Bintool.create('lzma_alone') HAVE_LZMA_ALONE = LZMA_ALONE.is_present()
-def compress(indata, algo, with_header=True): +def compress(indata, algo): """Compress some data using a given algorithm
Note that for lzma this uses an old version of the algorithm, not that @@ -41,12 +40,9 @@ def compress(indata, algo, with_header=True): data = LZMA_ALONE.compress(indata) else: raise ValueError("Unknown algorithm '%s'" % algo) - if with_header: - hdr = struct.pack('<I', len(data)) - data = hdr + data return data
-def decompress(indata, algo, with_header=True): +def decompress(indata, algo): """Decompress some data using a given algorithm
Note that for lzma this uses an old version of the algorithm, not that @@ -64,9 +60,6 @@ def decompress(indata, algo, with_header=True): """ if algo == 'none': return indata - if with_header: - data_len = struct.unpack('<I', indata[:4])[0] - indata = indata[4:4 + data_len] if algo == 'lz4': data = LZ4.decompress(indata) elif algo == 'lzma': diff --git a/tools/binman/entry.py b/tools/binman/entry.py index a45aeeaa59..9ec5811b46 100644 --- a/tools/binman/entry.py +++ b/tools/binman/entry.py @@ -1074,12 +1074,12 @@ features to produce new behaviours. indata: Data to compress
Returns: - Compressed data (first word is the compressed size) + Compressed data """ self.uncomp_data = indata if self.compress != 'none': self.uncomp_size = len(indata) - data = comp_util.compress(indata, self.compress, with_header=False) + data = comp_util.compress(indata, self.compress) return data
@classmethod diff --git a/tools/binman/etype/section.py b/tools/binman/etype/section.py index 0a92bf2386..bd67238b91 100644 --- a/tools/binman/etype/section.py +++ b/tools/binman/etype/section.py @@ -777,8 +777,7 @@ class Entry_section(Entry): data = parent_data[offset:offset + child.size] if decomp: indata = data - data = comp_util.decompress(indata, child.compress, - with_header=False) + data = comp_util.decompress(indata, child.compress) if child.uncomp_size: tout.info("%s: Decompressing data size %#x with algo '%s' to data size %#x" % (child.GetPath(), len(indata), child.compress, diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py index d082442bec..057b4e28b7 100644 --- a/tools/binman/ftest.py +++ b/tools/binman/ftest.py @@ -1967,7 +1967,7 @@ class TestFunctional(unittest.TestCase): self._ResetDtbs()
def _decompress(self, data): - return comp_util.decompress(data, 'lz4', with_header=False) + return comp_util.decompress(data, 'lz4')
def testCompress(self): """Test compression of blobs""" @@ -2878,7 +2878,7 @@ class TestFunctional(unittest.TestCase): def testExtractCbfsRaw(self): """Test extracting CBFS compressed data without decompressing it""" data = self._RunExtractCmd('section/cbfs/u-boot-dtb', decomp=False) - dtb = comp_util.decompress(data, 'lzma', with_header=False) + dtb = comp_util.decompress(data, 'lzma') self.assertEqual(EXTRACT_DTB_SIZE, len(dtb))
def testExtractBadEntry(self): @@ -4449,16 +4449,14 @@ class TestFunctional(unittest.TestCase): rest = base[len(U_BOOT_DATA):]
# Check compressed data - expect1 = comp_util.compress(COMPRESS_DATA + U_BOOT_DATA, 'lz4', - with_header=False) + expect1 = comp_util.compress(COMPRESS_DATA + U_BOOT_DATA, 'lz4') data1 = rest[:len(expect1)] section1 = self._decompress(data1) self.assertEquals(expect1, data1) self.assertEquals(COMPRESS_DATA + U_BOOT_DATA, section1) rest1 = rest[len(expect1):]
- expect2 = comp_util.compress(COMPRESS_DATA + COMPRESS_DATA, 'lz4', - with_header=False) + expect2 = comp_util.compress(COMPRESS_DATA + COMPRESS_DATA, 'lz4') data2 = rest1[:len(expect2)] section2 = self._decompress(data2) self.assertEquals(expect2, data2)