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binman: Put compressed data into separate files

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At present compression uses the same temporary file for all invocations.
With multithreading this causes the data to become corrupted. Use a
different filename each time.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2021-07-06 10:36:36 -06:00
parent 72fa1ad8d9
commit 650ead1a4a
1 changed files with 7 additions and 2 deletions
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9
tools/patman/tools.py
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@ -466,6 +466,9 @@ def Compress(indata, algo, with_header=True):
This requires 'lz4' and 'lzma_alone' tools. It also requires an output
directory to be previously set up, by calling PrepareOutputDir().
Care is taken to use unique temporary files so that this function can be
called from multiple threads.
Args:
indata: Input data to compress
algo: Algorithm to use ('none', 'gzip', 'lz4' or 'lzma')
@ -475,14 +478,16 @@ def Compress(indata, algo, with_header=True):
"""
if algo == 'none':
return indata
fname = GetOutputFilename('%s.comp.tmp' % algo)
fname = tempfile.NamedTemporaryFile(prefix='%s.comp.tmp' % algo,
dir=outdir).name
WriteFile(fname, indata)
if algo == 'lz4':
data = Run('lz4', '--no-frame-crc', '-B4', '-5', '-c', fname,
binary=True)
# cbfstool uses a very old version of lzma
elif algo == 'lzma':
outfname = GetOutputFilename('%s.comp.otmp' % algo)
outfname = tempfile.NamedTemporaryFile(prefix='%s.comp.otmp' % algo,
dir=outdir).name
Run('lzma_alone', 'e', fname, outfname, '-lc1', '-lp0', '-pb0', '-d8')
data = ReadFile(outfname)
elif algo == 'gzip':