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Valgrind never passes all of its own regression tests, and which tests fail depends on the OS, gdb/debuginfo, and sometimes the CPU. check-regtest.sh runs "make test", extracts the failing tests, and fails only on a failure not listed in regtest-expected/<os>.txt (or if the tests did not run). Each error from the post-test checks is its own entry. "?" marks a test that may or may not fail; --update regenerates the list. New CI jobs regtest_ubuntu_26_04 and regtest_rocky_10 run it with --report-only and upload the observed failures, so that the expected lists can be bootstrapped from CI; remove --report-only once they are committed. Also add "make check-regtest". .gitignore: ignore check-regtest.sh output and 45 test binaries from tests added in the Valgrind 3.23 merge; remove a corrupted line that joined two entries (both are also listed separately).
Fix review findings: wrong codespecs#79 example and weak rationale in the ordering section; bfd.h version mismatch and zstd risks; tarball signature verification; --merge=diff3 produces conflict markers, not .rej files; build-product check before generating patches; memcheck files removed upstream; memcheck/Makefile.am changes; make git-update's memcheck output. Use check-regtest.sh instead of comparing regtest logs by eye, and depend on preparatory work (stale upstream files removed, regtest in CI, fixed make git-update, DynComp IROp scan, bfd.h versions recorded). Add a check that a merge leaves no file that upstream deleted, and fix the .gitignore instructions for new test drivers.
The readelf and Valgrind upgrade plans depend on this work: removing stale upstream files, enforcing regtest expected failures in CI, fixing make git-update and generate-patch-files.sh, scanning DynComp for unhandled IROps, updating the merge doc, and recording bfd.h versions.
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Priority: ➖ Normal Change: Feature Merge Risk: ⚪ Minimal · up to
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| Check name | Status | Explanation |
|---|---|---|
| Docstring Coverage |  |
Docstring coverage is 80.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 5 functions across 2 files. (4 skipped: 4 u… |
| Linked Issues check | |
Check skipped because no linked issues were found for this pull request. |
| Out of Scope Changes check | |
Check skipped because no linked issues were found for this pull request. |
Full details: Docstring Coverage
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Explanation
Docstring coverage is 80.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 5 functions across 2 files. (4 skipped: 4 unsupported.)
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- 🪄 Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @check-regtest.sh:
- Around line 91-92: Update SUMMARY_RE in the regression-test summary check to
require a positive test count, while still accepting Valgrind’s zero-count
summary format where needed. Keep the existing failure-count comparison and
success behavior unchanged.
- Line 123: Update the required-entry filtering pipeline in check-regtest.sh so
a file containing only comments, blank lines, or optional `?` entries produces
an empty result instead of triggering `set -e` through `pipefail`. Preserve the
existing normalization and sorting behavior for files with required entries.
Review comments at @plan-upgrade-valgrind.md:
- Around line 163-164: Update the Valgrind upgrade steps to return to the Fjalar
root before running `./check-regtest.sh` and other root-relative test and finish
commands. In `plan-upgrade-valgrind.md` lines 163–164, add the directory change
before those commands; in `plan-upgrade-readelf.md` lines 181–182, return to the
Fjalar root before `make -C valgrind/fjalar` and the root-relative test
commands, or use absolute paths.
- Around line 177-180: Update Step 9 to generate an upstream-failure baseline
separately in each CI environment and compare that environment’s observed
results against its own baseline before updating regtest-expected/<os>.txt; do
not rely solely on regtest-upstream-3.27.1.txt created on the upgrade machine.
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.github/workflows/ci.yml.gitignoreMakefilecheck-regtest.shplan-pre-upgrade.mdplan-upgrade-readelf.mdplan-upgrade-valgrind.mdtest.sh
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This was referenced Oct 17, 2026
…RF PRs codespecs#89-codespecs#95 Both upgrades should wait for them: codespecs#89, codespecs#90, codespecs#91, and codespecs#95 change dwarf.c (and codespecs#90/codespecs#95 change mc_main.c and mc_include.h), and codespecs#85-codespecs#88 change dyncomp_translate.c. codespecs#85's --dyncomp-unhandled-ops=warn and codespecs#87's explicit unary handling also change how to find unhandled IROps.
This was referenced Oct 17, 2026
…red failures Also, in the upgrade plans, return to $INV/fjalar before the test steps, and say how to check whether a CI-only regtest failure is an upstream failure. Addresses CodeRabbit review comments.
Since C23 bool is a keyword. Also bool wasn't actually used.
tc17_sembar.c:45:14: error: both 'long' and '_Bool' in declaration specifiers
45 | typedef long bool;
| ^~~~
tc17_sembar.c:45:1: warning: useless type name in empty declaration
45 | typedef long bool;
| ^~~~~~~
…local
Since C23 thread_local is a keyword (thread storage duration).
swapcontext.c:23:16: error: expected '{' before 'thread_local'
23 | typedef struct thread_local {
| ^~~~~~~~~~~~
swapcontext.c:23:16: warning: 'thread_local' is not at beginning of declaration [-Wold-style-declaration]
swapcontext.c:23:16: error: 'thread_local' used with 'typedef'
swapcontext.c:26:3: warning: data definition has no type or storage class
26 | } thread_local_t;
| ^~~~~~~~~~~~~~
GCC15 will turn this warning into an error:
bug234814.c: In function 'main':
bug234814.c:20:18: error: assignment to '__sighandler_t' {aka 'void (*)(int)'} from incompatible pointer type 'void (*)(void)' [-Wincompatible-pointer-types]
20 | sa.sa_handler = mysigbus;
| ^
"make regtest" runs "make check", which validates the manual with xmllint if it is installed. That needs the DocBook DTD and failed in the Rocky Linux CI container, so no test ran.
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…heck Moved here from codespecs#101 and codespecs#96, which also edited this section.
…l request plan-pre-upgrade.md and the other edits to the upgrade plans move to branch upgrade-plans. This pull request keeps the plan edits that use check-regtest.sh.
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- Valgrind plan: build before the baselines, because check-regtest.sh needs a built tree; save the build log with pipefail. - Readelf plan: drop "make clean", which fails in a fresh clone before valgrind/Makefile exists; use pipefail so that a failed build stops. - 3-way merge: require that "git status --porcelain --ignored valgrind" prints nothing, because "git add -A -f" adds ignored files. - Valgrind plan: note that steps 3-6 and 10 still describe patch and make git-update until codespecs#99 and codespecs#103 land. - plan-pre-upgrade.md: codespecs#102 depends on nothing (land it before codespecs#96); item 6 is done. - Readelf plan: record ldd and nm -u output in the baseline, for the later comparison. - Use "land", not "merge", for pull requests. - Readelf plan: combine the two harvest_* bullets. - Valgrind plan: say to install gdb and glibc debuginfo before the regtest baseline commands, not after them. - Rewrap long lines.
… all; bound post_regtest_checks output; add --observed; check --log exists; build test programs in parallel
…g; fail with --report-only if the tests did not run; handle missing VERSION_ID and /etc/os-release; resolve symbolic links in FJALARDIR; ignore failing tests' .out and .diff files
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…tracked files; run the Kvasir baseline once; note that codespecs#105 contains codespecs#96 and codespecs#96 contains codespecs#102; describe check-regtest.sh's post-test-check log and --report-only
# Conflicts: # Makefile
…h's options; do not overwrite Fjalar's observed failures Without -s --no-print-directory, check-regtest.sh reads make's messages in test-post.log as errors of the post-test checks. Without --observed, the upstream run overwrites regtest-observed-<os>.txt from step 1.
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…ts of pull requests; remove the 3-way-merge alternative The text that codespecs#98, codespecs#99, codespecs#101, codespecs#103, and codespecs#113 change in the plans is left as in codespecs#96, so that those pull requests' versions apply when they land. plan-pre-upgrade.md points to those pull requests rather than restating them. The "Alternative: a 3-way merge for Coregrind" section is removed, because codespecs#103's apply-patch-files.sh performs the same 3-way merge with git apply --3way.
…cted-failures file when deleting untracked files; step 9 does not depend on where step 6 left the shell
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This pull request depends on #102, and it contains its commits. Please land #102 first. After that, this pull request's diff shows only its own change. #105 depends on this pull request and contains its commits.
Valgrind never passes all of its own regression tests (
make test), and which tests fail depends on the OS, on whether gdb and glibc debuginfo are installed, and sometimes on the CPU. So far, merges have checked these tests by comparing before/after logs by eye. This PR automates that check.#98–#104 don't depend on this PR. It contains #102 because, without #102, its
regtest_ubuntu_26_04job runs no tests: Ubuntu 26.04's GCC 15 can't compile three of Valgrind's test programs, somake regteststops before running any test, andcheck-regtest.shcorrectly fails the job.Changes
check-regtest.sh(alsomake check-regtest) runsmake test, extracts the failing tests from thevg_regtestsummary, and compares them withregtest-expected/<os>.txt(<os>from/etc/os-release, e.g.ubuntu-26.04,rocky-10).--report-only.post:command fails to run, whichvg_regtestcounts but doesn't list, is an entryTEST (post check failed), such asmassif/tests/big-alloc (post check failed).make -j check) before running the tests, whichvg_regtestruns serially.make regtestotherwise does throughmake checkwhenxmllintis installed; it needs the DocBook DTD and failed in the Rocky Linux container.?marks a test that may or may not fail;--updateregenerates the list (keeping comments and?lines);--log FILEparses an existing log, and--post-log FILEthe matching log of the post-test checks (default: the--logname with.logreplaced by-post.log);--expected FILEnames the expected-failures file (defaultregtest-expected/<os>.txt);--observed FILEnames the file that receives the observed failures (defaultregtest-observed-<os>.txt);--report-onlynever fails.regtest_ubuntu_26_04andregtest_rocky_10log the CPU, the gdb version, and thebinutils-dev(el)version (whichbfd.hthe readelf code uses), build Fjalar, run./check-regtest.sh --report-only, and upload the observed failures, the logs, and the failing tests'.outand.difffiles as an artifact (regtest-results-*)..gitignore: ignores the script's output (regtest-observed-*.txt), the.outand.difffiles thatvg_regtestleaves behind for each failing test (valgrind/**/*.out,valgrind/**/*.diff*), and 45 test binaries from tests added in the Valgrind 3.23 merge; removes a corrupted line that joined two entries (both are also listed separately).test.sh: the commented-out Valgrind-test command is now./check-regtest.sh, and the comment says that CI runs it in separate jobs.plan-upgrade-readelf.mdandplan-upgrade-valgrind.mdusecheck-regtest.shinstead of comparing logs by eye. For the upstream baseline (step 3 of the Valgrind plan), they runmake regtestandmake post-regtest-checkswith the same options thatcheck-regtest.shuses (XMLLINT=xmllint-skipped-by-check-regtest;-s --no-print-directory, so that make's own messages are not read as errors of the post-test checks), and pass--observed, so that the upstream run does not overwrite Fjalar'sregtest-observed-<os>.txt. The readelf plan's baseline step also no longer runsmake cleanfirst, which fails before the first build. In step 1 of the Valgrind plan,make buildprecedes./check-regtest.sh, which needs the build, and deleting untracked files keeps a localregtest-expected/<os>.txt, which step 9 needs. Upgrade plans: preparation plan and review fixes #105 contains the plans' other changes, including the newplan-pre-upgrade.md, which were split out of this pull request.Follow-up (not in this PR; see
plan-pre-upgrade.mdin #105)The regtest jobs only report for now; the expected-failure lists come from these CI runs, not from a developer machine, because results depend on the container.
Before generating the lists, land these, since they change which tests fail:
cachegrind/tests/ann1,cachegrind/tests/diff,memcheck/tests/memalign2) and 27 of the 29 post-test-check errors. (Declare Fjalar's two core functions locally instead of including pub_core headers #97, which has landed, removed Fjalar's twopub_coreincludes, the other 2 post-test-check errors.)-plusDocker images that these jobs use, so that mostgdbserver_testscan pass; then rebuild and push the images.Then:
regtest-observed-<os>.txtasregtest-expected/<os>.txt; re-run a couple of times and mark any test whose result varies with?.--report-onlyfrom the two jobs (TODO comments inci.yml).Testing
check-regtest.shon the regtest logs quoted indoc/valgrind-merge.texinfo, covering: no expected list,--update, matching results, an unexpected failure, a newly passing test,?lines kept across--update, and a log with no summary line.post:commands fail, post-test-check errors followed by make's and other output, and a--logfile that doesn't exist.shellcheckis clean.