0.24.2 --- openkal-llvm-runtime 0.19.2 keeps the volume of a normalized name

.github/workflows/family-release.yml

@@ -33,6 +33,12 @@ on:
 permissions:
   contents: read
 
+# `bash -eo pipefail`, not the default `bash -e`: a check piped into `tee` fails
+# its step when the check fails.
+defaults:
+  run:
+    shell: bash
+
 env:
   MCPP_PREVIOUS: 2026.11.5.1
   MCPP_SOURCE_REF: ${{ github.event.inputs.mcpp_ref || vars.MCPP_SOURCE_REF || '' }}
@@ -104,7 +110,12 @@ jobs:
       - name: The candidate index (the published one with the group's change)
         run: |
           git clone --quiet --depth 1 https://github.com/mcpplibs/mcpp-index.git "$RUNNER_TEMP/index"
-          git -C "$RUNNER_TEMP/index" apply "$GITHUB_WORKSPACE/index-change.patch"
+          # Empty once the index lists the group: the published index is then the candidate.
+          if [ -s "$GITHUB_WORKSPACE/index-change.patch" ]; then
+            git -C "$RUNNER_TEMP/index" apply "$GITHUB_WORKSPACE/index-change.patch"
+          else
+            echo "the published index lists the group"
+          fi
           python3 "$RUNNER_TEMP/index/tests/prepare_builtin_index.py" --home "$HOME/.mcpp" --source "$RUNNER_TEMP/index"
       - name: Both mcpp releases resolve and build an image of the group
         run: |

README.md

@@ -57,6 +57,12 @@ whole name however long, openkal-llvm-runtime 0.19.1 reads a name beneath a
 Windows volume as absolute, openkal-macos 0.22.1 sizes its confinement rules to
 the grants of each start, and openkal-image 0.5.1 builds okrun over it.
 
+Platform 0.24.2 changes one member: openkal-llvm-runtime 0.19.2 keeps the volume
+of a name it rebuilds part by part (`lexically_normal`, `weakly_canonical`, and
+`D:/a` / `/b`), which 0.19.1 lost on Windows, so that a launcher over the hosted
+arrangement could not start its runner (openkal-llvm-runtime#68). It is the first
+group released as a leaf and a patch of this group, through one index change.
+
 A project overrides any group under `[target.<selector>]`, for example
 `[target.'cfg(platform = "openkal")'.layers] "c++-abi" = false`, and selects
 another platform, or none, with `platform = "..."` or `--platform`.
@@ -162,7 +168,7 @@ group is released as one index change:
 python3 tools/family_release.py check            # tags, GitCode mirrors, the index
 python3 tools/family_release.py defects          # open issues, for the release notes
 python3 tools/family_release.py index ../mcpp-index   # the group's one index change
-python3 tools/family_release.py exports openkal-platform@0.24.0 openkal-platform@0.24.1
+python3 tools/family_release.py exports openkal-platform@0.24.1 openkal-platform@0.24.2
 ```
 
 `.github/workflows/family-release.yml` runs them on every change of the group:

mcpp.toml

@@ -12,7 +12,7 @@
 [package]
 namespace   = "mcpplibs"
 name        = "openkal-platform"
-version     = "0.24.1"
+version     = "0.24.2"
 description = "The platform of ok images (<arch>-openkal): their toolchain, C library and C++ run-time, tools, compile and link conventions, seal, runner and carrier, as one versioned statement mcpp reads."
 license     = "Apache-2.0"
 authors     = ["mcpplibs"]
@@ -40,8 +40,8 @@ debuggee = ["okrun", "--debugger", "{}"]
 # The C library and the C++ run-time inside an image. A package of the graph
 # that provides a layer takes its place (`provides`), and `false` leaves it out.
 [platform.layers]
-compiler-runtime = "openkal-llvm-runtime@0.19.1"
-"c++-abi"        = "openkal-llvm-runtime@0.19.1"
+compiler-runtime = "openkal-llvm-runtime@0.19.2"
+"c++-abi"        = "openkal-llvm-runtime@0.19.2"
 c-abi            = { name = "openkal-musl", version = "0.28.1", default-features = false, features = ["posix", "malloc-mimalloc"] }
 
 # Built for the building machine: `okld` writes and checks the notes, `okrun`
@@ -162,8 +162,8 @@ targets   = ["x86_64-linux-gnu", "aarch64-linux-gnu", "x86_64-linux-musl", "aarc
 toolchain = "llvm@23.1.3"
 
 [platform.hosted.layers]
-compiler-runtime = "openkal-llvm-runtime@0.19.1"
-"c++-abi"        = "openkal-llvm-runtime@0.19.1"
+compiler-runtime = "openkal-llvm-runtime@0.19.2"
+"c++-abi"        = "openkal-llvm-runtime@0.19.2"
 c-abi            = { name = "openkal-musl", version = "0.28.1", default-features = false, features = ["posix", "malloc-mimalloc"] }
 
 # The family released together for openkal 0.17 (the 0.17.2 round: okb, the
@@ -193,7 +193,10 @@ c-abi            = { name = "openkal-musl", version = "0.28.1", default-features
 # relative relocations of an image packed; 0.24.1: openkal-musl 0.28.1 keeps a
 # directory's whole name, openkal-llvm-runtime 0.19.1 reads a name beneath a
 # Windows volume as absolute, openkal-macos 0.22.1 sizes its confinement rules
-# to the grants, and openkal-image 0.5.1 starts programs over it):
+# to the grants, and openkal-image 0.5.1 starts programs over it; 0.24.2:
+# openkal-llvm-runtime 0.19.2 keeps the volume of a name it normalizes or
+# appends a rooted name to, the first group released as a leaf and a patch of
+# this group through one index change):
 # one version of each in a build. From 0.24.1 the members name one another by
 # compatible ranges (`^0.28.0`) and this group chooses the versions: mcpp
 # 2026.11.7.1 resolves within it, and a fix of one member is that member's
@@ -205,7 +208,7 @@ openkal-linux        = "0.25.0"
 openkal-macos        = "0.22.1"
 openkal-windows      = "0.20.0"
 openkal-musl         = "0.28.1"
-openkal-llvm-runtime = "0.19.1"
+openkal-llvm-runtime = "0.19.2"
 openkal-ld           = "0.5.1"
 openkal-run          = "0.5.1"
 openkal-tools        = "0.5.1"

tools/family_release.py

@@ -17,7 +17,11 @@
                      release notes
   exports OLD NEW    builds one image with the platform at OLD and at NEW and
                      compares the global symbols of the C library and the C++
-                     run-time objects it links: a patch version removes none
+                     run-time objects it links: a patch version removes none.
+                     A function of libc++ marked _LIBCPP_HIDE_FROM_ABI carries
+                     its ODR-signature ABI tag (`B9fqe220108`); it is inline,
+                     every object that calls it holds its own copy, and it is
+                     not compared
 
 Network reads use GITHUB_TOKEN when it is set.
 """
@@ -42,6 +46,8 @@
 INDEX_RAW = "https://raw.githubusercontent.com/mcpplibs/mcpp-index/main/pkgs/o/{}.lua"
 # The layers whose objects an image links, by the directory mcpp builds them into.
 LAYERS = ("mcpplibs_openkal-musl", "mcpplibs_openkal-llvm-runtime")
+# libc++'s ODR signature as an Itanium ABI tag: the hardening and exceptions letters and _LIBCPP_VERSION.
+HIDDEN_FROM_ABI = re.compile(r"B\d+[a-z]{1,4}\d{6}")
 
 
 def group(also):
@@ -173,7 +179,7 @@ def symbols(mcpp, platform, target, work, nm):
             sys.exit(f"{platform}: the build linked no objects of {layer}")
         out = subprocess.run([nm, "--defined-only", "--extern-only", "--format=just-symbols", *map(str, objects)],
                              check=True, capture_output=True, text=True).stdout
-        found[layer] = {s for s in out.split() if s and not s.endswith(":")}
+        found[layer] = {s for s in out.split() if s and not s.endswith(":") and not HIDDEN_FROM_ABI.search(s)}
     return found