RPM macros that list arches the full kernel is built on
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Eugene Syromiatnikov cd6eedad11 find-provides.ksyms, find-requires.ksyms: avoid calling nm twice
Instead of running the nm output through grep and then running it
through awk again, run it directly through awk, and bail of immediately
if a non-absolute symbol is found.

Also, while we're here, avoid executing the indirect parsing code
if no __crc_* symbols are present at all, which shaves around 8-18% off
of the run time:

    % for i in ./lib/modules/*; do \
        echo "====== $i ====="; \
        diff -u <(find $i | ./find-provides.ksyms.old) <(find $i | ./find-provides.ksyms.new); \
        echo old:; find $i | time ./find-provides.ksyms.old > /dev/null; \
        echo new:; find $i | time ./find-provides.ksyms.new > /dev/null; \
    done
    ====== ./lib/modules/4.18.0-372.57.1.el8_6.s390x =====
    old: ../find-provides.ksyms.old > /dev/null  5.10s user 4.52s system 150% cpu 6.412 total
    new: ../find-provides.ksyms.new > /dev/null  4.41s user 3.48s system 136% cpu 5.764 total
    ====== ./lib/modules/4.18.0-372.57.1.el8_6.x86_64 =====
    old: ../find-provides.ksyms.old > /dev/null  7.80s user 6.19s system 143% cpu 9.740 total
    new: ../find-provides.ksyms.new > /dev/null  6.07s user 3.97s system 124% cpu 8.066 total
    ====== ./lib/modules/5.14.0-284.15.1.el9_2.s390x =====
    old: ../find-provides.ksyms.old > /dev/null  5.87s user 4.35s system 143% cpu 7.113 total
    new: ../find-provides.ksyms.new > /dev/null  5.12s user 3.56s system 132% cpu 6.533 total
    ====== ./lib/modules/5.14.0-284.15.1.el9_2.x86_64 =====
    old: ../find-provides.ksyms.old > /dev/null  8.44s user 6.78s system 144% cpu 10.535 total
    new: ../find-provides.ksyms.new > /dev/null  6.55s user 4.17s system 123% cpu 8.666 total
    ====== ./lib/modules/6.4.0-0.rc1.20230511git80e62bc8487b.19.eln126.s390x =====
    old: ../find-provides.ksyms.old > /dev/null  5.04s user 3.95s system 145% cpu 6.166 total
    new: ../find-provides.ksyms.new > /dev/null  4.64s user 3.17s system 136% cpu 5.719 total
    ====== ./lib/modules/6.4.0-0.rc1.20230511git80e62bc8487b.19.eln126.x86_64 =====
    old: ../find-provides.ksyms.old > /dev/null  8.49s user 5.54s system 139% cpu 10.043 total
    new: ../find-provides.ksyms.new > /dev/null  7.41s user 4.31s system 129% cpu 9.046 total

* find-provides.ksyms: Rewrite the "if nm | grep -q; then nm | awk"
with straight "nm | awk", update the awk script to return the exit code
accordingly, execute indirect symbol parsing only if inderect __crc_*
symbols are present.
* find-requires.ksyms (all_provides): Likewise.

Resolves: #2178935
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
2023-06-12 15:03:09 +02:00
.gitignore New branch setup 2020-10-08 15:57:43 +00:00
README.md RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:42:20 +02:00
brp-kmod-restore-perms Add zstd kmod compression support 2021-11-18 14:50:11 +01:00
brp-kmod-set-exec-bit Enable extraction of debug information for kmods 2021-11-18 14:22:00 +01:00
find-provides.ksyms find-provides.ksyms, find-requires.ksyms: avoid calling nm twice 2023-06-12 15:03:09 +02:00
find-requires.ksyms find-provides.ksyms, find-requires.ksyms: avoid calling nm twice 2023-06-12 15:03:09 +02:00
firmware.prov Add zstd kmod compression support 2021-11-18 14:50:11 +01:00
gating.yaml gating.yaml: switch to BaseOS CI 2022-02-17 05:06:21 +01:00
kabi.attr kabi: handle symvers.xz 2023-06-08 15:31:48 +02:00
kabi.sh kabi: handle symvers.xz 2023-06-08 15:31:48 +02:00
kernel-srpm-macros.spec kernel-srpm-macros.spec: bump RPM release 2023-02-08 18:11:55 +01:00
kmod.attr Add zstd kmod compression support 2021-11-18 14:50:11 +01:00
kmodtool Add zstd kmod compression support 2021-11-18 14:50:11 +01:00
macros.kernel-srpm RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:42:20 +02:00
macros.kmp Switch kmodtool-generated spec to internal dependency generator 2021-11-18 14:49:04 +01:00
modalias.attr Add zstd kmod compression support 2021-11-18 14:50:11 +01:00
modalias.prov modalias.prov: stricter module aliase/version mangling 2021-11-18 14:50:11 +01:00
provided_ksyms.attr Add zstd kmod compression support 2021-11-18 14:50:11 +01:00
required_ksyms.attr Add zstd kmod compression support 2021-11-18 14:50:11 +01:00
rpmsort rpmsort: update the FSF address 2021-11-18 14:50:11 +01:00
sources RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:42:20 +02:00
symset-table Adopt kernel-rpm-macros from redhat-rpm-config 2021-05-13 17:52:56 +02:00

README.md

kernel-srpm-macros

The kernel-srpm-macros package