The great TC update (GCC 14.2 for everyone)

.github/workflows/toolchain.yml

@@ -8,11 +8,11 @@ jobs:
 
     strategy:
       matrix:
-        tc: [kindle, kindle5, kindlepw2, kobo, nickel, remarkable, cervantes, pocketbook, bookeen]
+        tc: [kindle, kindle5, kindlepw2, kindlehf, kobo, kobov4, kobov5, nickel, remarkable, cervantes, pocketbook, bookeen]
 
     steps:
       - name: Check out Git repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -26,7 +26,7 @@ jobs:
         run: tar -C ~ -czf ${{ matrix.tc }}.tar.gz x-tools
 
       - name: Uploading artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.tc }}
           path: ${{ matrix.tc }}.tar.gz

README.md

@@ -35,7 +35,7 @@ For example, to build a cross toolchain for legacy non-touch kindle devices, typ
 ./gen-tc.sh kindle
 ```
 
-You can use `./gen-tc.sh -h` to get a list of supported platforms.
+You can use `./gen-tc.sh -h` to get a list of supported platforms (some of which may not have a matching KOReader target, either because a port was never finished (e.g., `bookeen`), or they're just minor variants for evolving platforms where KOReader prefers to keep backwards compatibility intact (e.g., `kobov4`)).
 
 After the build is finished, you should be able to find your cross ToolChains under the `~/x-tools` directory.
 
@@ -73,11 +73,14 @@ Due to a whole lot of legacy baggage, the names of the various Kindle TCs may be
 |   kindle  |      Kindle 2, DX, DXg, 3     | kindle-legacy |
 |  kindle5  |      Kindle 4, Touch, PW1     |     kindle    |
 | kindlepw2 | Kindle PW2 & everything since |   kindlepw2   |
+|  kindlehf |   Any Kindle on FW >= 5.16.3  |    kindlehf   |
 
 No such worries on Kobo & Cervantes, though ;).  
 
 The nickel TC is a Kobo variant that mimics Kobo's own TC (as of FW >= 4.6). It is *not* recommended for general purpose stuff, only use it if you have a specific need for it (which should essentially be limited to working with Kobo's nickel, or Kobo's kernels).
 
+The kobov5 TC is specifically tailored for Kobo & Tolino devices running on FW 5.x. Since that FW implies packaging differences compared to earlier iterations, it does warrant a dedicated KOReader target. (It also targets a *much* more recent glibc version).
+
 The pocketbook TC aims for maximum backward compatibility while still keeping inkview support.
 
 The remarkable TC aims for FW >= 2.x compatibility.

gen-tc.sh

@@ -1,8 +1,8 @@
 #!/bin/bash -e
 #
-# adapted from NiLuJe's build script:
+# Adapted from NiLuJe's build script:
 # http://www.mobileread.com/forums/showthread.php?t=88004
-# (live copy: http://trac.ak-team.com/trac/browser/niluje/Configs/trunk/Kindle/Misc/x-compile.sh)
+# (live copy: https://svn.ak-team.com/svn/Configs/trunk/Kindle/Misc/x-compile.sh)
 #
 # =================== original header ====================
 #
@@ -60,8 +60,7 @@ Build_CT-NG() {
 			unset CFLAGS CXXFLAGS LDFLAGS
 			ct-ng "${tc_target}"
 			ct-ng oldconfig
-			# That requires the 1.24 branch, so, don't do it on 1.23
-			[ ! -f "${BUILD_ROOT}/CT-NG/steps.mk" ] && ct-ng upgradeconfig
+			ct-ng upgradeconfig
 			ct-ng updatetools
 			nice ct-ng build
 			echo ""
@@ -87,7 +86,10 @@ Supported platforms:
 	kindle
 	kindle5
 	kindlepw2
+	kindlehf
 	kobo
+	kobov4
+	kobov5
 	nickel
 	remarkable
 	cervantes
@@ -106,56 +108,77 @@ case $1 in
 		echo "${HELP_MSG}"
 		exit 0
 		;;
+	kobov5)
+		Build_CT-NG \
+			https://github.com/NiLuJe/crosstool-ng.git \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
+			"arm-${1}-linux-gnueabihf"
+		;;
+	kobov4)
+		Build_CT-NG \
+			https://github.com/NiLuJe/crosstool-ng.git \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
+			"arm-${1}-linux-gnueabihf"
+		;;
 	kobo)
 		Build_CT-NG \
 			https://github.com/NiLuJe/crosstool-ng.git \
-			3e2d99d030cbecc0119aa08bd06d062f59669d45 \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
 			"arm-${1}-linux-gnueabihf"
 		;;
 	nickel)
 		Build_CT-NG \
 			https://github.com/NiLuJe/crosstool-ng.git \
-			3e2d99d030cbecc0119aa08bd06d062f59669d45 \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
+			"arm-${1}-linux-gnueabihf"
+		;;
+	kindlehf)
+		Build_CT-NG \
+			https://github.com/NiLuJe/crosstool-ng.git \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
 			"arm-${1}-linux-gnueabihf"
 		;;
 	kindlepw2)
 		Build_CT-NG \
 			https://github.com/NiLuJe/crosstool-ng.git \
-			3e2d99d030cbecc0119aa08bd06d062f59669d45 \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
 			"arm-${1}-linux-gnueabi"
 		;;
 	kindle5)
 		Build_CT-NG \
 			https://github.com/NiLuJe/crosstool-ng.git \
-			3e2d99d030cbecc0119aa08bd06d062f59669d45 \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
 			"arm-${1}-linux-gnueabi"
 		;;
 	kindle)
-		# NOTE: Don't swap away from the 1.23-kindle branch,
-		#       this TC currently fails to build on 1.24-kindle...
+		# NOTE: Prevent libstdc++ from pulling in utimensat@GLIBC_2.6
+		export glibcxx_cv_utimensat=no
+
 		Build_CT-NG \
 			https://github.com/NiLuJe/crosstool-ng.git \
-			9954e26ad2a0781a12f0066411bc5ee5cd8b2829 \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
 			"arm-${1}-linux-gnueabi"
+		unset glibcxx_cv_utimensat
 		;;
 	remarkable)
 		Build_CT-NG \
 			https://github.com/NiLuJe/crosstool-ng.git \
-			3e2d99d030cbecc0119aa08bd06d062f59669d45 \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
 			"arm-${1}-linux-gnueabihf"
 		;;
 	cervantes)
 		Build_CT-NG \
 			https://github.com/NiLuJe/crosstool-ng.git \
-			3e2d99d030cbecc0119aa08bd06d062f59669d45 \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
 			"arm-${1}-linux-gnueabi"
 		;;
 	pocketbook)
-		# NOTE: Don't swap away from the 1.23-kindle branch,
-		#       this TC currently fails to build on 1.24-kindle...
+		# NOTE: Prevent libstdc++ from pulling in utimensat@GLIBC_2.6
+		export glibcxx_cv_utimensat=no
+
 		Build_CT-NG \
 			https://github.com/NiLuJe/crosstool-ng.git \
-			9954e26ad2a0781a12f0066411bc5ee5cd8b2829 \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
 			"arm-${1}-linux-gnueabi"
 		# Then, pull InkView from the (old) official SDK...
 		# NOTE: See also https://github.com/pocketbook/SDK_6.3.0/tree/5.19/SDK-iMX6/usr/arm-obreey-linux-gnueabi/sysroot/usr/local for newer FWs...
@@ -194,11 +217,13 @@ case $1 in
 			-O "${HOME}/x-tools/arm-${1}-linux-gnueabi/arm-${1}-linux-gnueabi/sysroot/usr/include/bookstate.h"
 		chmod a-w "${HOME}/x-tools/arm-${1}-linux-gnueabi/arm-${1}-linux-gnueabi/sysroot/usr/include/bookstate.h"
 		chmod a-w "${HOME}/x-tools/arm-${1}-linux-gnueabi/arm-${1}-linux-gnueabi/sysroot/usr/include"
+
+		unset glibcxx_cv_utimensat
 		;;
 	bookeen)
 		Build_CT-NG \
 			https://github.com/NiLuJe/crosstool-ng.git \
-			3e2d99d030cbecc0119aa08bd06d062f59669d45 \
+			a221b564b965cb3ea79d0145ee3e085d354ed5fa \
 			"arm-${1}-linux-gnueabi"
 		;;
 	*)

refs/x-clang-compiler-rt.sh

@@ -2,7 +2,7 @@
 #
 # Companion script to x-compile compiler-rt for Clang experiments
 #
-# $Id: x-clang-compiler-rt.sh 18643 2021-07-09 22:43:16Z NiLuJe $
+# $Id: x-clang-compiler-rt.sh 19004 2022-12-25 17:22:43Z NiLuJe $
 #
 # kate: syntax bash;
 #
@@ -29,9 +29,14 @@ mkdir -p "${TC_BUILD_DIR}"
 cd "${TC_BUILD_DIR}"
 
 # c.f., https://llvm.org/docs/HowToCrossCompileBuiltinsOnArm.html
-CLANG_VERSION="12.0.1"
-tar -I pigz -xvf /usr/portage/distfiles/llvmorg-${CLANG_VERSION}.tar.gz
-cd llvm-project-llvmorg-${CLANG_VERSION}/compiler-rt
+CLANG_VERSION="15.0.6"
+tar xvJf /usr/portage/distfiles/llvm-project-${CLANG_VERSION}.src.tar.xz
+cd llvm-project-${CLANG_VERSION}.src
+tar xvJf /usr/portage/distfiles/llvm-gentoo-patchset-${CLANG_VERSION}.tar.xz
+for patch in llvm-gentoo-patchset-15.0.6/* ; do
+	patch -p1 < "${patch}"
+done
+cd compiler-rt
 mkdir build
 cd build
 # NOTE: Install path is the *live* Clang installation from the host (Gentoo paths)!
@@ -45,6 +50,7 @@ cmake .. -G Ninja \
 	-DCOMPILER_RT_BUILD_XRAY=OFF \
 	-DCOMPILER_RT_BUILD_LIBFUZZER=OFF \
 	-DCOMPILER_RT_BUILD_MEMPROF=OFF \
+	-DCOMPILER_RT_BUILD_ORC=OFF \
 	-DCOMPILER_RT_BUILD_PROFILE=OFF \
 	-DCMAKE_C_COMPILER=$(command -v clang) \
 	-DCMAKE_AR=$(command -v llvm-ar) \