<feed xmlns='http://www.w3.org/2005/Atom'>
<title>tinyusb.git/.github/workflows/build_util.yml, branch rework-metrics</title>
<subtitle>Unnamed repository; edit this file 'description' to name the repository.</subtitle>
<id>http://cgit.235523.xyz/tinyusb.git/atom/.github/workflows/build_util.yml?h=rework-metrics</id>
<link rel='self' href='http://cgit.235523.xyz/tinyusb.git/atom/.github/workflows/build_util.yml?h=rework-metrics'/>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/'/>
<updated>2026-09-06T13:12:43Z</updated>
<entry>
<title>ci: disable SonarQube analysis</title>
<updated>2026-09-06T13:12:43Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-09-06T13:12:43Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=3a00bf270e95a693a6b72052de3c289c81432218'/>
<id>urn:sha1:3a00bf270e95a693a6b72052de3c289c81432218</id>
<content type='text'>
</content>
</entry>
<entry>
<title>ci: address Sonar security findings</title>
<updated>2026-09-06T09:08:01Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-09-06T09:08:01Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=63ae99276e239b5ba153ab6a8ff15916fc7cd728'/>
<id>urn:sha1:63ae99276e239b5ba153ab6a8ff15916fc7cd728</id>
<content type='text'>
</content>
</entry>
<entry>
<title>ci-pinned-boards: curate the board set, esp upload via hil-build-esp, rp2040 fixes</title>
<updated>2026-09-06T08:57:00Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-09-03T23:07:53Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=2a84a2c8b32116b9a9a34eb3b0f39d0644710e06'/>
<id>urn:sha1:2a84a2c8b32116b9a9a34eb3b0f39d0644710e06</id>
<content type='text'>
The cmake job builds and uploads every pinned board to membrowse on
every run, PRs and pushes alike (--identical when code did not
change) - it is the single owner of that upload, as before this
branch touched it.

Curate the board set itself. cxd56/spresense, da1469x/da1469x_dk_pro,
fomu/fomu and ft9xx/mm900evxb are no longer pinned CI boards: none sit
on either HIL roster and no other CI board carries their driver, so
their size tracking was build-only with no hardware behind it -
documented with honest `uncovered` reasons instead of silently
dropping coverage. Swap lpc15/lpcxpresso1549 -&gt; lpc11/lpcxpresso11u68
for dcd_lpc_ip3511, lpc17/lpcxpresso1769 -&gt; lpc40/ea4088_quickstart
for dcd_lpc17_40+ohci, and samd5x_e5x/same54_xplained -&gt;
metro_m4_express; adafruit_fruit_jam now also claims dcd_rp2040. All
four changed boards build-verified (device/cdc_msc, cmake), and the
rp2040 group's (family, board) sort order restored. Two stale notes
the swap left behind are fixed: lpcxpresso11u68 is on neither roster,
so its "HIL (htpc)" claim (copy-pasted from the entry it replaced) was
false, and ea4088_quickstart is a maintainer bench board noted the
same way frdm_kl25z and lpcxpresso1549 were.

Rename the board file to .github/ci-pinned-boards.json, with matching
--ci-pinned-boards/--ci-pinned-boards-only flags: it pins the board
that represents each family in CI, and membrowse history is keyed on
each pinned board's &lt;board&gt;/&lt;example&gt; target names, so the set is
explicitly held rather than derived. Content and target names are
unchanged; the per-entry "family" key is dropped - board names are
unique across hw/bsp/*/boards, so it was redundant data that could
drift from the tree. build.py's resolve_ci_boards() and the coverage
checker derive the family from the board dir, and entries are sorted
by board name, the only key left to sort on.

espressif builds have no leg in the cmake job (esp-idf is by far the
slowest toolchain, and its boards are already enumerated by name for
the rig) - hil-build-esp keeps its own upload-membrowse + secrets:
inherit instead, and hil-build-esp-identical covers the --identical
row for a no-code-change push, the same gap hil-build-esp's own
code-changed gate would otherwise leave. build_util.yml's Membrowse
Upload step skips any leg whose args carry --build-name, an extra -D
or --cflag - a HIL variant build - since it configures with the same
-DBOARD=&lt;name&gt; as the plain build and would otherwise fight it for
the same upload target name; this protects hil-build-esp's DMA
variants specifically. The step also does not scope by $EX_ARGS
(kept on the Build step): scoping the upload by the PR's example
filter would leave examples outside that filter with no upload
attempt at all - a silent history gap rather than the --identical row
the design intends.

Fork PRs: GHA withholds secrets, so MEMBROWSE_API_KEY reaches
membrowse_report.py empty. Master's CMake-expanded bare --api-key
fell through to membrowse's GitHub tokenless auth; the wrapper now
does the same by omitting --api-key entirely when the env var is
empty, rather than exiting - the previous hard-exit was silently
hidden behind the workflow's continue-on-error, so every fork PR
lost its upload with no visible failure.

Retiring ci_skip_boards let CircleCI's plain family sweep reach five
rp2040 boards for the first time; two didn't build. pico_sdk fails
dual/host_hid_to_device_cdc and dual/host_info_to_device_cdc - a
meta-board with no board.h pin defines of its own has no
PICO_DEFAULT_PIO_USB_* macros, which a dual-role rp2040 example needs
for its PIO-USB host side - so each example gained a skip.txt entry
naming the failure. feather_rp2040_max3421 failed host/bare_api on
-Wmissing-prototypes for max3421_int_handler in hw/bsp/rp2040/family.c;
it is only ever used as a same-file GPIO IRQ callback (no other caller),
so it is marked static rather than skip-listing a zero-risk one-line
fix. All 8 rp2040 boards now build clean, `-b &lt;board&gt;` and the bare
`rp2040` family sweep alike.

drivers_coverage_check.py type-checks `drivers` before iterating: a
string previously iterated character-by-character into nonsense "X
matches no driver source file" errors, and null raised an unhandled
TypeError.

Not fixed, flagged for a follow-up: MEMBROWSE_API_KEY reaches
membrowse_report.py as a child-process argv (visible in
/proc/&lt;pid&gt;/cmdline on the runner, even though the logged command line
is redacted) rather than via the environment.

Final-review fixes: the espressif Membrowse Upload docker run only
forwarded MEMBROWSE_API_KEY and CI into the container, so membrowse's
--github metadata detection (GITHUB_EVENT_NAME/GITHUB_SHA/...) and its
fork-PR tokenless auth never saw the actual event - add
GITHUB_ACTIONS/GITHUB_EVENT_NAME/GITHUB_SHA/GITHUB_REF_NAME plus a
read-only bind mount of GITHUB_EVENT_PATH (containers don't inherit
runner env by default; the esp Build step needs none of this, since
its `--target all` never builds the *-membrowse/-upload custom
targets, so its now-unused `pip install membrowse` is also dropped).
check-paths' code filter also gains tools/membrowse_report.py, so a PR
touching only that file exercises the real build+upload matrix
(ci_select rule 2d) instead of 74 no-op --identical legs.

Review fixes: generate_membrowse_sizes()'s all-examples scope (-b with no -e)
now averages each file's size across the elfs it appears in instead of
summing, matching metrics.py's compute_avg() semantics from the linkermap
engine this branch replaced - a file linked by N examples no longer reports
~N times its real size, and the Flash/RAM columns are a real binary's size
again; single-example (-e) stays byte-identical (sum, same as before). The
Membrowse Upload step (build_util.yml) and hil-build-esp-identical's loop
(build.yml) now strip any -e &lt;example&gt; pairs hil_ci_set_matrix.py bakes into
a PR-scoped hil-build-esp leg's args before invoking, so a PR-scoped run
still uploads every example of the pinned board rather than only the
PR-selected subset - closing exactly the silent history gap the step's own
comment already warned against.

Also: build.py's espressif branch gates the idf.py build path on 'all' being
present in build_targets rather than being exactly ['all'], so a combined
--target invocation still runs the build instead of silently skipping on a
fresh dir; membrowse_compare.py's layout-based bucketing unions the actual
flash/ram buckets of a multi-region section's regions instead of assuming
any 2+-region split is a flash+ram pair (e.g. RAM_D1/RAM_D2 now stays
ram-only); membrowse_report.py's extract_defsyms() dedupes to match its own
docstring.

Post-validate fixes, folded in. The Membrowse Upload step threads the
PR's -e filter through for BOARD ELIGIBILITY only: without it,
resolve_ci_boards() ran with examples=None and still resolved the
pinned board even when the Build step above had fallen back to a
substitute, uploading --identical for a board that run never built.
Under --ci-pinned-boards-only tools/build.py now nulls the example
filter after board selection, so the upload still touches every
example of whichever board got resolved - real rows for what was
built, --identical for the rest.

same7x earns its pin instead of assuming it: a full family sweep
showed five *_freertos examples failing (no FreeRTOSConfig.h wired
for same7x - skip.txt'd as family:same7x, naming the reason) and
same70_qmtech's board.cmake/mk pointing at a same70n19b_flash.ld
that never existed in the tree (the SDK ships none) - the board now
carries its own, Q21B's script with the N19B's MEMORY sizes (512K
flash / 256K ram per same70n19b.h), like the other boards with a
board-local .ld. Both same7x boards now build their full example sets
green under the real budget. cxd56 stays OUT of
ci_set_matrix's family_list and its BSP reverts to master untouched:
the same sweep showed NuttX-header failures across three examples,
spresense is unpinned anyway, and a -Wno-error suppression for a
family no CI leg builds silences a real diagnostic class for nothing.

drivers_coverage_check.py gains two guards: a pinned family that no
CI toolchain actually compiles is now a validity error (the dead-pin
case the same7x episode demonstrated), and a non-dict entry in
"boards" reports one clear error instead of a traceback. The spec and
plan docs are updated to the shipped names (membrowse-targets.json /
--board-pins / --pins-only never shipped; 71 occurrences), and stale
test fixtures naming the deleted tinyusb_metrics target are repointed
at examples-membrowse-upload.

Validate-loop fixes, folded in. membrowse_compare.py's report_for_elf()
now passes the elf's own linker scripts and --defsym values (read from
its ninja build graph, exactly as the CI upload path does) to
`membrowse report`: with none given membrowse falls back to its default
Code/Data regions, which the layout bucketing cannot map, so `.data`
lost its flash-side load image and was counted RAM-only (verified on
stm32h743eval: region 'Data' without the script, ['FLASH','RAM_D1']
with it). _bucket_from_layout() also unions in the flash side for a
BOTH_SECTIONS section whose layout lists only its RAM region -
pico-sdk's script never lists `.data` under FLASH, undercounting
raspberry_pi_pico's flash by 11.2K.

membrowse_onboard.py: `membrowse onboard` checks out and `git clean
-fdx`s every historical commit in whatever directory it runs, which
would detach HEAD and wipe the deps symlinks in the repo root - so the
wrapper runs it in a disposable worktree under cmake-metrics/, and the
composed build script relinks deps and reconfigures the (also wiped)
build dir before every historical build, not just the first.
--build-dirs now includes the example's own directory, so a change to
its sources no longer backfills as --identical. Not fixable in the
wrapper: onboard applies one commit's linker scripts to every commit in
the range (no per-commit override in its CLI).
</content>
</entry>
<entry>
<title>ci-boards: one curated board list for CI, membrowse and HIL coverage</title>
<updated>2026-09-06T08:57:00Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-08-26T07:55:05Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=3451819164596397894b493960334ca241b561ec'/>
<id>urn:sha1:3451819164596397894b493960334ca241b561ec</id>
<content type='text'>
The pinned-target file becomes .github/ci-boards.json - "pin" reads as
GPIO pin in this repo - and with it the flags (--ci-boards,
--ci-boards-only), the resolver (resolve_ci_boards()) and the JSON's
own key (boards). It is now the only board-curation mechanism:
tools/build.py's ci_skip_boards/ci_preferred_boards are gone, with
samd2x_l2x and stm32h7 pinned to preserve today's CI picks, and
resolve_ci_boards() applies the -e buildability filter so a scoped PR
cannot pick a board that builds none of the selected examples and go
green having compiled nothing.

Curate the set itself: RP2350 boards (raspberry_pi_pico2,
adafruit_fruit_jam for hcd_pio_usb) replace feather_rp2040_max3421, add
max32666fthr, align the lpc55/nrf pins with rig boards, and drop the
nuvoton trio, msp432e4, broadcom_64bit, f1c100s, gd32vf103 and mm32 -
dwc2 stays covered, the rest move to uncovered with reasons.

The checker moves to tools/drivers_coverage_check.py and reports
coverage for both consumers without failing on gaps: membrowse boards
(documented uncovered -&gt; INFO, undocumented -&gt; WARNING) and the HIL
rosters (INFO), mapping boards to drivers through ci_select's rule-3/4
machinery including its role filter, so an hcd driver only counts
host-role rig boards. Validity errors - unknown names, a driver both
pinned and uncovered, an hcd claim on a board with no host example -
still exit 1. Its chdir now scopes both cwd-relative calls, so the
checker works from any directory, and the hook watches the inputs it
actually reads.
</content>
</entry>
<entry>
<title>metrics: replace the linkermap CI pipeline with membrowse</title>
<updated>2026-09-06T08:57:00Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-08-26T10:28:51Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=968cd7c7ba252cea658d0c5a6fef128ef88eb4a0'/>
<id>urn:sha1:968cd7c7ba252cea658d0c5a6fef128ef88eb4a0</id>
<content type='text'>
Membrowse becomes TinyUSB's size-analytics system, in CI and locally.

.github/membrowse-targets.json names the boards CI builds per family
and the drivers each covers; a checker enforced by pre-commit fails
when a dcd/hcd driver (plus ehci/ohci) is neither claimed nor
documented in `uncovered`, validates board and family names against
hw/bsp, and requires a board claiming an hcd driver to build at least
one host/dual example. tools/build.py resolves that file into the
build matrix and gates uploads on it.

Locally, tools/membrowse_compare.py diffs `membrowse report --json
--all-symbols` per source file, keyed on object_file (membrowse 1.2.9
truncates source_file to a basename), and metrics_compare_base.py uses
it as the default engine, with `--engine linkermap` as the legacy
map.json fallback (still required for --combined/--ci). A guard errors
instead of writing a silent all-zero table when the filters match
nothing. linkermap stops running on every build: the POST_BUILD hook
goes, the explicit &lt;target&gt;-linkermap target and a new
examples-linkermap aggregate stay, and family_add_linkermap() no-ops
when the dep is not fetched.

CI loses the whole linkermap pipeline - the code-metrics job, the
sticky PR size comment, release metrics assets, per-family artifacts,
metrics_pair_compare.py, the membrowse-onboard workflow and CircleCI's
dead tinyusb_metrics lane. The cmake job builds the named boards
(esp-idf included, membrowse wired into the IDF docker path via
family_initialize_project and MEMBROWSE_LD_OVERRIDE) and uploads only
those, keeping the --identical path for code-unchanged runs. ci_select
follows: the size tooling no longer runs in any CI build, while the
board list decides what a family's legs compile and so forces a full
matrix. Adds the espressif, same7x, cxd56 and f1c100s families the
board list needs, each build-verified.

The upload itself moves out of cmake: family_add_membrowse()'s ~90-line
inline bash becomes tools/membrowse_report.py, carrying ninja
linker-script extraction with recursive INCLUDE resolution, --defsym
collection, map-file detection, --identical fallback and upload
composition. The API key is read from the environment at run time,
passed via argv and redacted in logs - nothing is baked into
build.ninja at configure time, which the CMake-expanded
$ENV{MEMBROWSE_API_KEY} used to do.

tools/membrowse_onboard.py wraps `membrowse onboard` for history
backfill, deriving the build script, elf path and the CI-matching
target name (&lt;board&gt;/&lt;basename&gt;) so a backfill cannot land under a name
CI never uploads to; it refuses to start on a dirty worktree, since
onboard checks out past commits in place.

A membrowse skill documents local reports, size diffs, board-list
maintenance, uploads and backfill; the code-size skill records the new
default engine and its linkermap fallback. Three follow-up handoffs
capture what was deliberately split out: full linkermap removal,
membrowse --combined support, and the dead build_filtered plumbing.
</content>
</entry>
<entry>
<title>ci: an empty selection must build nothing, plus selector follow-ups (#3845)</title>
<updated>2026-08-25T02:46:42Z</updated>
<author>
<name>Ha Thach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-08-25T02:46:42Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=da255b1d2db10b8f31332a779b2a526f579acee1'/>
<id>urn:sha1:da255b1d2db10b8f31332a779b2a526f579acee1</id>
<content type='text'>
ci: an empty selection must build nothing, plus selector follow-ups

A PR whose build axis legitimately selected nothing rebuilt everything.
build.yml reads .build.families twice - as a |-joined regex, and implicitly
as "is anything selected" - but tested only -z "$FAMILY_REGEX", which an
empty list and a charset-rejected one both satisfy while meaning opposite
things. ci_set_matrix had already returned the correct all-empty matrix;
the fall-open branch discarded it. #3842 and #3840 each spent 74 cmake legs
on it. Branch on the two cases instead, rename FAM_* to FAMILY_*, and cover
the block with a test that extracts it from build.yml and executes it - it
had no test at all, which is how this shipped through two merges.

Follow-ups to the same machinery: glob.escape the repo root at five sites,
so a checkout path containing [ or * stops failing closed; drop the ci-full
label, read after the matrix was already computed and so never functional;
delete 13 mcu:MKL25ZXX / mcu:SAME5X skip tokens matching no board; carry the
rule table in the module docstring, guarded against drift; and pin six
selection behaviours a mutation pass proved untested.

Cut the selector's cost 1.8x (26.0s -&gt; 14.6s) with 0 divergences over 260
paths, and stop scoping the membrowse upload by the PR example filter.</content>
</entry>
<entry>
<title>ci: fix nine ways the selection under-selected or mismatched</title>
<updated>2026-08-21T05:41:47Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-08-21T05:41:47Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=e13eff8d4e757ebe7709a58fce44017b8be5a84d'/>
<id>urn:sha1:e13eff8d4e757ebe7709a58fce44017b8be5a84d</id>
<content type='text'>
Every one of these dropped coverage silently - the worst failure mode here,
because the PR still goes green. Found by review, each reproduced first.

Selection rules:

* class_macros derived the config macro from the class DIRECTORY, so a change to
  src/class/midi/midi2_device.c selected the midi_test examples (which do not
  compile it) and never examples/device/midi2_device (the only one that enables
  CFG_TUD_MIDI2, and the only one that does). The file's own macro is unioned in
  where it differs - union, never replace: over-selecting costs a build,
  under-selecting merges a break.
* the ${FAMILY_MCUS} fallback added for espressif fired on any family whose
  _family_mcus came back empty, and _cmake_sets is if()-blind and keeps the FIRST
  definition - so mcx/frdm_mcxn947 answered MCXA15, a token six examples' skip.txt
  names, dropping 12 firmware images CMake builds. Limited now to families that
  never spell set(FAMILY_MCUS ...) at all.
* lib_examples read only an example's top-level CMakeLists.txt/Makefile;
  host/msc_file_explorer_freertos names lib/embedded-cli in src/CMakeLists.txt and
  survived by luck. The whole example tree is scanned. (SEGGER_RTT and rt-thread
  still resolve to nothing: all three references sit inside a LOGGER=rtt guard no
  CI build sets - the documented ruling, not a miss.)
* get_family_boards applied ci_skip_boards/ci_preferred_boards only under
  GITHUB_ACTIONS/CIRCLECI, so the selector answered differently on a laptop than
  on a runner; _prune_buildable forces CI semantics. Its one-board pick also
  abandoned the whole preferred list when entry one could not build the -e set,
  and asked skip_example without the build's -D tokens.
* _config_enables and lib_examples still read with the locale encoding - under
  LC_ALL=C the selector tracebacked on three tracked tusb_config.h files. The
  whole selector and its suite run clean there now.

Workflows:

* the Membrowse Upload step omitted $EX_ARGS, but --one-first now picks the board
  from the -e set, so it configured a different, empty build dir and uploaded
  --identical for a board never compiled. It takes $EX_ARGS for the BOARD; the
  target stays the aggregate, which has no DEPENDS and still records every example.
* blanking FAM_REGEX reset only build_filtered, leaving the build scoped while
  code-metrics took the UNSCOPED branch and diffed a 1-family run against the full
  averaged baseline. All three drop together now, as CircleCI's fall-open does.
* CircleCI's EX_ARGS had no character screen and is used unquoted, and its
  code-metrics job still exit 1'd on an empty metrics set - which a scoped build
  makes a legitimate outcome.
* a `ci-full` PR label now turns the scoping off for one PR. A selector bug
  under-selects silently, and without a label the only ways back to a full matrix
  are accidental.

Performance, since the selector gates every other job: family.cmake texts are read
once rather than per changed directory (a 6,000-file dep bump re-read 84 files
99,892 times) and _scrape_mcu is cached: 2.2s -&gt; 0.29s there, 0.8s -&gt; 0.33s on a
class diff.

Tests: a drift guard for hw/bsp families absent from ci_set_matrix.family_list
(they select zero legs now, where they used to ride the full matrix); the rule-4
port test asserted a SUBSET, which set() satisfies, so it could not fail on the
empty selection it exists to catch; the GITHUB_ENV guard test counted a SUM of two
guards. Drops metrics.py's --only-examples, which nothing called, and applies the
TOTAL scrub to the by-example branch that skipped it.
</content>
</entry>
<entry>
<title>ci: scope the build matrix and the HIL run to what a PR affects</title>
<updated>2026-08-21T04:07:27Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-08-21T04:07:27Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=04d0f71984117b8c72349f4584bd9e26a37b129c'/>
<id>urn:sha1:04d0f71984117b8c72349f4584bd9e26a37b129c</id>
<content type='text'>
Every PR built all 74 legs (2494 example builds on GHA cmake alone) and flashed
all 30 rig boards, whatever it touched. One classifier now walks the PR diff twice
and answers three questions: which families to build, which examples per family,
and which boards run which tests. Fail-open throughout - anything no rule
classifies, any exception, any unusable output falls back to the full matrix, and
a master push always builds everything.

test/hil/helper/hil_select.py moves to tools/ci_select.py: it is no longer HIL-only,
and tools/ is where the build side can import it. test_hil_select.py follows it as
test_ci_select.py.

Rules (docs/superpowers/specs/2026-08-19-ci-build-family-filter-design.md holds the
full table): a port selects the families whose family.cmake references it, and its
role - a dcd change skips host examples and vice versa; a class selects only the
examples whose tusb_config.h enables its CFG_TU[DH]_ macro, following cross-class
includes; an example selects itself; hw/bsp selects its family or board; hw/mcu and
lib select whoever references them. CMake is the reference for all of it - make
follows whatever cmake decides, family.mk is never scanned.

Empty means empty (maintainer ruling): a rule that classifies a path to nothing
selects nothing. Ports no family references, classes no config enables, libs no
example builds and hw/mcu paths that resolve nowhere are all real - nothing
compiles them, so nothing can validate them, and the master-push build is the net.
Structural tests pin each such case with an explicit allowlist, so the day one
stops being empty it fails pre-commit instead of silently narrowing CI.

Per-example builds: build.py grows a repeatable -e, resolved against the targets
CMake actually registered and batched into one `cmake --build --target a b c`.
build_utils mirrors CMake's family_filter (the whole FAMILY_MCUS list, ${...} and
string(TOUPPER ...) resolved) for the cmake side, while the make side keeps
master's algorithm verbatim - the two build systems answer differently and a shared
answer breaks lpc54's make link. hil-build gains this even on a full selection:
1702 example builds become 515.

Transport: the selection travels as a file, never an argv or env var - a mass-sweep
diff selects 261 KB against a 128 KiB exec limit, and E2BIG would fail the step
before its own fallback could run. CircleCI carries the example map inside the
generated config (pipeline parameters cap at 512 chars), swapped into the parameter
defaults by sentinel match, and drops the scoping wholesale if that rewrite fails.
Every PR-derived value written to $GITHUB_ENV/$GITHUB_OUTPUT is character-screened.

Code metrics follow the scoping: metrics.py emits per-example totals, and
metrics_pair_compare compares the (board, example) pairs present on both sides
instead of a scoped run against a full-matrix average.

The selector's own suite gates it in both providers: a selector that exits 0 with
valid-but-wrong JSON is the one failure fail-open cannot catch, so a red suite
means the full matrix.
</content>
</entry>
<entry>
<title>hil, ci: scope HIL builds and tests to the boards a PR affects (#3797)</title>
<updated>2026-07-29T19:29:32Z</updated>
<author>
<name>Ha Thach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-07-29T19:29:32Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=eef5af86aa26fe3d72e41156a586a6ed3ffce9f8'/>
<id>urn:sha1:eef5af86aa26fe3d72e41156a586a6ed3ffce9f8</id>
<content type='text'>
hil, ci: scope HIL builds and tests to the boards a PR affects

Add test/hil/hil_select.py, a stdlib-only selector that maps a PR diff to the
rig boards, tests and BSP families a change can affect, and wire it into CI so
pull requests build and run only those. A port change picks its families' boards,
a class change picks the examples enabling that class, and device/host changes
prune the other role. Anything unclassified — infra, an unmapped port, a selector
error — falls back to the full matrix, and push/schedule runs are untouched.
Move the shared example lists to hil_examples.py; 54 hardware-free tests cover
the rules.</content>
</entry>
<entry>
<title>hil: controller-aware scheduling of flash and usbtest concurrency</title>
<updated>2026-07-17T04:54:14Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-07-16T13:47:19Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=9b3259e60f3bd7e2d9637b61dc07265e4a73b362'/>
<id>urn:sha1:9b3259e60f3bd7e2d9637b61dc07265e4a73b362</id>
<content type='text'>
Full-fleet profiling (HIL_PROFILE=1 instrumentation, included) showed each
uPD720201 controller's serialized usbtest battery chain dominates wall time,
and a board whose marginal device port bounces during concurrent batteries
can wedge or kill the controller ("xHCI host not responding to stop endpoint
command"). Every such death traced to mimxrt1015's port (its old "kills the
uPD720201" reputation) - it is removed from the config until recabled;
mimxrt1064's enum-retry stalls were a loose device cable (re-seated).
nrf54lm20dk moves to boards-skip until its failing J-Link probe is replugged.
With the hardware fixed both cards run width-4 batteries plus full flash
churn clean, so scheduling stays simple: two symmetric knobs, flashes and
batteries budgeted per controller.

- schedule_boards(): dispatch boards round-robin across host controllers from
  a persisted hint cache (~/.cache/tinyusb-hil/ctrl_cache.json), learned and
  merge-on-write refreshed each run (concurrent HIL jobs keep each other's
  entries). Only the cached PCI address is consumed - dispatch order and
  first-flash budgeting, never battery serialization (batteries resolve live
  or fail closed to an all-slot permit).
- HIL_FLASH_PARALLEL (8) and HIL_USBTEST_PARALLEL (4) are budgeted per
  controller via lock slots assigned on first sight.
- re-runs: a failed run writes &lt;report dir&gt;/&lt;config&gt;.failed with the exact
  re-run spec (--accumulate -b &lt;failed board&gt; -bt &lt;board&gt;:&lt;its failed
  tests&gt;) instead of the inverted --skip-board list of everything that
  passed; --skip-board is gone, --flasher/--exclude-flasher scope a config
  across CI jobs by flasher type (no board names hardcoded in workflows),
  and -a/--accumulate merges a re-run into the existing report. The spec is
  stamped with GITHUB_RUN_ID and cleared on fresh runs, so a retry can never
  consume a spec left behind by a different run's dead or skipped attempt.
- CI: esp-idf firmware builds move out of hil-build into hil-build-esp, and
  the esptool-flashed boards run in their own hil-tinyusb-esp job, so the
  main hil-tinyusb run starts as soon as the fast toolchains finish instead
  of waiting on the slow esp-idf build (an esp toolchain flake previously
  skipped the whole rig run). Artifacts are namespaced per toolchain so the
  esp job downloads only esp-idf binaries.
- HIL_PROFILE=1: timestamped log lines, per-flash durations, permit-wait
  logging, uid-&gt;controller map dump for analysis.
- hil_report: per-variant test duration as a dedicated trailing column,
  recorded only by full runs.

Validated on the ci rig (fixed seeds 20260716/777, full fleet at 8/4):
738s/780s walls with only known-flake failures and no controller deaths,
vs 1134-1211s serialized-battery baseline.
</content>
</entry>
</feed>
