Packaging CDS archive file (.jsa) in deploy JAR.

This is the first step of a series of planned changes to support producing a CDS archive at build-time automatically and embedding it into the output deploy JAR as part of the 'java_binary' rule action, when it is opt-in.

This CL augments the singlejar tool to prepend the CDS archive data before the JAR content but after the launcher binary, if '--cds_archive <archive_path>' is specified. The start of the CDS archive within the deploy JAR is aligned at page boundary, which is required by file-backed mapping. The start offset is recorded as an attribute, 'Jsa-Offset' in the deploy JAR META-INF/MANIFEST.MF. The recorded 'Jsa-Offset' is used by the JVM to locate and map the archived data at runtime.

RELNOTES: Add --cds_archive option for embedding CDS archive into deploy JAR.
PiperOrigin-RevId: 295991052
6 files changed
tree: 0f00277e895f549d1f7aa44ebecdf6eee3c41ba8
  1. .bazelci/
  2. .bazelrc
  3. .gitattributes
  4. .gitignore
  5. AUTHORS
  6. BUILD
  7. CHANGELOG.md
  8. CODEOWNERS
  9. CONTRIBUTING.md
  10. CONTRIBUTORS
  11. ISSUE_TEMPLATE.md
  12. LICENSE
  13. README.md
  14. WORKSPACE
  15. combine_distfiles.py
  16. combine_distfiles_to_tar.sh
  17. compile.sh
  18. distdir.bzl
  19. examples/
  20. scripts/
  21. site/
  22. src/
  23. third_party/
  24. tools/
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