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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: da5f41996687e18b78d9c9845e621d832115aa1e)

Signed-off-by: Paulo Neves <paulo@myneves.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Paulo Neves
2025-03-08 00:27:20 +01:00
committed by Steve Sakoman
parent dcbf2ff5dc
commit 8bfb7dabb7
1 changed files with 8 additions and 2 deletions
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10
bitbake/lib/bb/siggen.py
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@@ -331,7 +331,7 @@ class SignatureGeneratorBasic(SignatureGenerator):
for dep in self.runtaskdeps[tid]:
data += self.get_unihash(dep)
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]
@@ -393,7 +393,7 @@ class SignatureGeneratorBasic(SignatureGenerator):
if runtime and tid in self.taskhash:
data['runtaskdeps'] = 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:
@@ -720,6 +720,12 @@ class SignatureGeneratorTestMulticonfigDepends(SignatureGeneratorBasicHash):
name = "TestMulticonfigDepends"
supports_multiconfig_datacaches = True
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
fn = d.getVar("BB_FILENAME")