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bitbake: siggen.py: Improve taskhash reproducibility

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file checksums are part of the data checksummed
to generate the task hash. The list of file checksums
was not ordered.

In this commit we make sure the task hash checksum takes
a list of checksum data that is ordered by unique file name
thus guaranteeing reproducibility.

(Bitbake rev: 5293a1b36eeb89f57577cb709ec7f293909039a1)

Signed-off-by: Paulo Neves <paulo@myneves.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Paulo Neves
2023-08-22 20:33:58 +00:00
committed by Richard Purdie
parent 359a105de6
commit 65cd9697f9
1 changed files with 8 additions and 2 deletions
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10
bitbake/lib/bb/siggen.py
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@@ -361,7 +361,7 @@ class SignatureGeneratorBasic(SignatureGenerator):
for dep in sorted(self.runtaskdeps[tid]):
data += self.get_unihash(dep[1])
for (f, cs) in self.file_checksum_values[tid]:
for (f, cs) in sorted(self.file_checksum_values[tid], key=clean_checksum_file_path):
if cs:
if "/./" in f:
data += "./" + f.split("/./")[1]
@@ -426,7 +426,7 @@ class SignatureGeneratorBasic(SignatureGenerator):
if runtime and tid in self.taskhash:
data['runtaskdeps'] = [dep[0] for dep in sorted(self.runtaskdeps[tid])]
data['file_checksum_values'] = []
for f,cs in self.file_checksum_values[tid]:
for f,cs in sorted(self.file_checksum_values[tid], key=clean_checksum_file_path):
if "/./" in f:
data['file_checksum_values'].append(("./" + f.split("/./")[1], cs))
else:
@@ -745,6 +745,12 @@ class SignatureGeneratorTestEquivHash(SignatureGeneratorUniHashMixIn, SignatureG
self.server = data.getVar('BB_HASHSERVE')
self.method = "sstate_output_hash"
def clean_checksum_file_path(file_checksum_tuple):
f, cs = file_checksum_tuple
if "/./" in f:
return "./" + f.split("/./")[1]
return f
def dump_this_task(outfile, d):
import bb.parse
mcfn = d.getVar("BB_FILENAME")