[PATCH v4 0/7] debuginfod: speed up extraction from kernel debuginfo packages by 200x

From: Omar Sandoval <[email protected]>

This is v4 of my patch series optimizing debuginfod for kernel
debuginfo.  v1 is here [1], v2 is here [2], v3 is here [3].  The only
changes from v3 in this version are fixing a bogus maybe-uninitialized
error on the Debian build and adding the new test files to EXTRA_DIST so
that make distcheck passes.

Thanks,
Omar

1: https://sourceware.org/pipermail/elfutils-devel/2024q3/007191.html
2: https://sourceware.org/pipermail/elfutils-devel/2024q3/007208.html
3: https://sourceware.org/pipermail/elfutils-devel/2024q3/007243.html

Omar Sandoval (7):
  debuginfod: fix skipping <built-in> source file
  tests/run-debuginfod-fd-prefetch-caches.sh: disable fdcache limit
    check
  debuginfod: factor out common code for responding from an archive
  debugifod: add new table and views for seekable archives
  debuginfod: optimize extraction from seekable xz archives
  debuginfod: populate _r_seekable on scan
  debuginfod: populate _r_seekable on request

 configure.ac                                  |   5 +
 debuginfod/Makefile.am                        |   2 +-
 debuginfod/debuginfod.cxx                     | 923 +++++++++++++++---
 tests/Makefile.am                             |  13 +-
 ...pressme-seekable-xz-dbgsym_1.0-1_amd64.deb | Bin 0 -> 6288 bytes
 ...compressme-seekable-xz_1.0-1.debian.tar.xz | Bin 0 -> 1440 bytes
 .../compressme-seekable-xz_1.0-1.dsc          |  19 +
 .../compressme-seekable-xz_1.0-1_amd64.deb    | Bin 0 -> 6208 bytes
 .../compressme-seekable-xz_1.0.orig.tar.xz    | Bin 0 -> 7160 bytes
 .../compressme-seekable-xz-1.0-1.src.rpm      | Bin 0 -> 15880 bytes
 .../compressme-seekable-xz-1.0-1.x86_64.rpm   | Bin 0 -> 31873 bytes
 ...sme-seekable-xz-debuginfo-1.0-1.x86_64.rpm | Bin 0 -> 21917 bytes
 ...e-seekable-xz-debugsource-1.0-1.x86_64.rpm | Bin 0 -> 7961 bytes
 tests/run-debuginfod-archive-groom.sh         |   2 +-
 tests/run-debuginfod-extraction.sh            |   2 +-
 tests/run-debuginfod-fd-prefetch-caches.sh    |   4 +
 tests/run-debuginfod-seekable.sh              | 186 ++++
 17 files changed, 1011 insertions(+), 145 deletions(-)
 create mode 100644 tests/debuginfod-debs/seekable-xz/compressme-seekable-xz-dbgsym_1.0-1_amd64.deb
 create mode 100644 tests/debuginfod-debs/seekable-xz/compressme-seekable-xz_1.0-1.debian.tar.xz
 create mode 100644 tests/debuginfod-debs/seekable-xz/compressme-seekable-xz_1.0-1.dsc
 create mode 100644 tests/debuginfod-debs/seekable-xz/compressme-seekable-xz_1.0-1_amd64.deb
 create mode 100644 tests/debuginfod-debs/seekable-xz/compressme-seekable-xz_1.0.orig.tar.xz
 create mode 100644 tests/debuginfod-rpms/seekable-xz/compressme-seekable-xz-1.0-1.src.rpm
 create mode 100644 tests/debuginfod-rpms/seekable-xz/compressme-seekable-xz-1.0-1.x86_64.rpm
 create mode 100644 tests/debuginfod-rpms/seekable-xz/compressme-seekable-xz-debuginfo-1.0-1.x86_64.rpm
 create mode 100644 tests/debuginfod-rpms/seekable-xz/compressme-seekable-xz-debugsource-1.0-1.x86_64.rpm
 create mode 100755 tests/run-debuginfod-seekable.sh

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2.45.2