Update chromium to 140.0.7339.136 and meta-chromium whinlatter support

meta-chromium/conf/layer.conf

@@ -9,6 +9,6 @@ BBFILE_PATTERN_chromium-browser-layer := "^${LAYERDIR}/"
 BBFILE_PRIORITY_chromium-browser-layer = "7"
 
 LAYERVERSION_chromium-browser-layer = "1"
-LAYERSERIES_COMPAT_chromium-browser-layer = "scarthgap styhead walnascar"
+LAYERSERIES_COMPAT_chromium-browser-layer = "whinlatter"
 
-LAYERDEPENDS_chromium-browser-layer = "clang-layer core openembedded-layer"
+LAYERDEPENDS_chromium-browser-layer = "core openembedded-layer"

meta-chromium/recipes-browser/chromium/chromium-gn.inc

@@ -22,30 +22,13 @@ SRC_URI += "\
     file://0005-avoid-link-latomic-failure-on-CentOS-8-host.patch \
     file://0006-Don-t-pass-unknown-LLVM-options.patch \
     file://0007-Fix-constexpr-variable-must-be-initialized-by-a-cons.patch \
-    file://0008-Use-the-correct-path-to-libclang_rt.builtins.a.patch \
     file://0009-Adjust-the-Rust-build-to-our-needs.patch \
     file://0010-Don-t-require-profiler_builtins.rlib.patch \
-    file://0011-Revert-Allow-and-use-std-hardware_destructive_interf.patch \
-    file://0012-Revert-Set-Rust-symbol-visibility-to-hidden-when-C-s.patch \
-    file://0013-pdfium-Fix-missing-PDFiumAPIStringBufferAdapter-temp.patch \
-    file://0014-Revert-Remove-libavif-based-AVIF-decoder.patch \
-    file://0015-Revert-Remove-third_party-libavif.patch \
-    file://0016-Disable-crabbyavif-to-fix-build-errors.patch \
-    file://0017-rust-Use-adler-instead-of-adler2.patch \
-    file://0018-third_party-node-update_node_binaries-Update-nodejs-.patch \
-    file://0019-Reduce-minimum-browser-window-width-to-480px.patch \
-    file://0020-rust-filter-out-arm-specific-flags-from-rust-compile.patch \
-    file://0021-chromium-fix-v4l2-compiler-error-on-arm.patch \
+    file://0011-fix-check_version-Only-compare-node.js-major-version.patch \
+    file://0012-chromium-fix-v4l2-compiler-error-on-arm.patch \
+    file://23d818d3c7fba4658248f17fd7b8993199242aa9.patch \
 "
 
-# Missing third_party sources.
-SRC_URI += "\
-    git://chromium.googlesource.com/external/github.com/AOMediaCodec/libavif;protocol=https;branch=main;name=libavif;destsuffix=third_party/libavif/src \
-"
-
-SRCREV_FORMAT .= "_libavif"
-SRCREV_libavif = "e7b34a1f5e9f7024d08311c7bae156061b889882"
-
 # ARM/AArch64-specific patches.
 SRC_URI:append:aarch64 = "${@bb.utils.contains('TUNE_FEATURES', 'crypto', '', ' file://arm/0001-Fix-AES-crypto-SIGILL-on-rpi4-64.patch', d)}"
 
@@ -92,6 +75,7 @@ DEPENDS += " \
     libwebp \
     libxkbcommon \
     libxslt \
+    lld-native \
     ninja-native \
     nodejs-native \
     nspr \
@@ -106,7 +90,7 @@ DEPENDS += " \
     rust-native \
     virtual/libgl \
 "
-DEPENDS:append:runtime-llvm = " compiler-rt compiler-rt-native libcxx-native"
+DEPENDS:append = " compiler-rt compiler-rt-native libcxx-native"
 DEPENDS:append:libc-musl = " libexecinfo"
 
 LDFLAGS:append:libc-musl = " -lexecinfo"
@@ -139,10 +123,10 @@ PACKAGECONFIG[use-egl] = ",,virtual/egl virtual/libgles2"
 # be necessary but are OK to add).
 PACKAGECONFIG[component-build] = ""
 
-# Starting with M61, Chromium defaults to building with its own copy of libc++
-# instead of the system's libstdc++. Add a knob to control this behavior
-# https://groups.google.com/a/chromium.org/d/msg/chromium-packagers/8aYO3me2SCE/SZ8pJXhZAwAJ
-PACKAGECONFIG[custom-libcxx] = "use_custom_libcxx=true,use_custom_libcxx=false,,"
+#  As of Chromium 138, libc++ is required unconditionally.
+# https://docs.google.com/document/d/193ig0qeM23rK1yH6bW14O3zIgVztyKaY4R1XRwgmUFk/edit?usp=sharing
+# Force use_custom_libcxx=true as Chromium 138+ requires libc++
+GN_ARGS += "use_custom_libcxx=true"
 
 PACKAGECONFIG[cups] = "use_cups=true,use_cups=false,cups"
 PACKAGECONFIG[gtk4] = ""
@@ -281,6 +265,10 @@ GN_ARGS += "disable_fieldtrial_testing_config=true"
 # See https://crrev.com/c/2424669
 GN_ARGS += "chrome_pgo_phase=0"
 
+# Disable passing --warning-suppression-mappings= flag to clang.
+# This feature is available on Clang21+
+GN_ARGS += "clang_warning_suppression_file="""
+
 # API keys for accessing Google services. By default, we use an invalid key
 # only to prevent the "you are missing an API key" infobar from being shown on
 # startup.
@@ -297,9 +285,12 @@ GN_ARGS += ' \
 '
 
 # Use libcxx headers for native parts
-BUILD_CPPFLAGS:append:runtime-llvm = " -isysroot=${STAGING_DIR_NATIVE} -stdlib=libc++"
+BUILD_CPPFLAGS:append = " -isysroot=${STAGING_DIR_NATIVE} -stdlib=libc++"
 # Use libgcc for native parts
-BUILD_LDFLAGS:append:runtime-llvm = " -rtlib=libgcc -unwindlib=libgcc -stdlib=libc++ -lc++abi -rpath ${STAGING_LIBDIR_NATIVE}"
+BUILD_LDFLAGS:append = " -rtlib=libgcc -unwindlib=libgcc -stdlib=libc++ -lc++abi -rpath ${STAGING_LIBDIR_NATIVE}"
+LDFLAGS:append = " --target=${TARGET_SYS}"
+CXXFLAGS:append = " --target=${TARGET_SYS} -nostdlib++"
+CFLAGS:append = " --target=${TARGET_SYS}"
 
 # Toolchains we will use for the build. We need to point to the toolchain file
 # we've created, set the right target architecture and make sure we are not
@@ -367,15 +358,16 @@ ARM_VERSION:armv6 = "6"
 # overriding what GN wants
 TUNE_CCARGS:remove = "-mthumb"
 
+# Linking rust with partitionalloc is problematic in arm32
 GN_ARGS:append:arm = ' \
         arm_float_abi="${ARM_FLOAT_ABI}" \
         arm_fpu="${ARM_FPU}" \
         arm_tune="${ARM_TUNE}" \
         arm_version=${ARM_VERSION} \
+        use_partition_alloc_as_malloc=false \
+        enable_backup_ref_ptr_support=false \
 '
-# tcmalloc's atomicops-internals-arm-v6plus.h uses the "dmb" instruction that
-# is not available on (some?) ARMv6 models, which causes the build to fail.
-GN_ARGS:append:armv6 = ' use_partition_alloc_as_malloc=false enable_backup_ref_ptr_support=false'
+
 # The WebRTC code fails to build on ARMv6 when NEON is enabled.
 # https://bugs.chromium.org/p/webrtc/issues/detail?id=6574
 GN_ARGS:append:armv6 = ' arm_use_neon=false'
@@ -447,6 +439,7 @@ python do_write_toolchain_file () {
     toolchain_file = os.path.join(toolchain_dir, "BUILD.gn")
     write_toolchain_file(d, toolchain_file)
 }
+
 addtask write_toolchain_file after do_patch before do_configure
 
 do_add_nodejs_symlink () {
@@ -468,29 +461,39 @@ do_add_clang_latest () {
     # directory that is a copy of /usr/lib/clang/$CLANG_VERSION. Chromium
     # manually links against libclang_rt.builtins.a and uses the `clang_version`
     # GN variable to find it. This allows us to set it to the same value for all
-    # Yocto releases.
+    # Yocto releases. Also copy headers so bindgen can find system headers.
     cd "${STAGING_LIBDIR_NATIVE}/clang"
     rm -rf latest
-    # find the directory containing the library
+
+    # Find a directory with runtime libraries and copy it as base
     for dir in *; do
-        if [ -n "$(find $dir -name 'libclang_rt.builtins*')" ] ; then
+        if [ -d "$dir" ] && [ -n "$(find $dir -name 'libclang_rt.builtins*' 2>/dev/null)" ]; then
+            echo "Copying clang directory $dir to latest (runtime libraries)"
             cp -r "$dir" latest
             break
         fi
     done
+
+    # Find and copy headers from any versioned directory to ensure bindgen can find them
+    headers_copied=false
+    for dir in *; do
+        if [ -d "$dir/include" ]; then
+            echo "Found headers in $dir/include, copying to latest/include"
+            mkdir -p latest/include
+            cp -r "$dir/include/"* latest/include/
+            headers_copied=true
+            break
+        fi
+    done
+
+    if [ "$headers_copied" = false ]; then
+        echo "Warning: No Clang headers found in any versioned directories"
+    fi
 }
 addtask add_clang_latest after do_configure before do_compile
 
 do_copy_clang_library () {
-    # Chromium needs to link against libclang_rt.builtins.a for both host and
-    # target code, and expects to find both libraries in the same directory
-    # (thanks to 0008-Use-the-correct-path-to-libclang_rt.builtins.a.patch).
-    cd "${STAGING_DIR_HOST}${nonarch_libdir}/clang"
-    # lib_file = "./$CLANG_VERSION/lib/linux/libclang_rt.builtins-$ARCH.a"
-    lib_file="$(find . -name 'libclang_rt.builtins*')"
-    # stripped_lib_file = "lib/linux/libclang_rt.builtins-$ARCH.a"
-    stripped_lib_file="${lib_file#*/*/}"
-    cp "$lib_file" "${STAGING_LIBDIR_NATIVE}/clang/latest/${stripped_lib_file}"
+    cp -r ${STAGING_LIBDIR_NATIVE}/clang/latest ${STAGING_DIR_HOST}${nonarch_libdir}/clang/
 }
 addtask copy_clang_library after do_add_clang_latest before do_compile
 
@@ -502,15 +505,15 @@ do_copy_target_rustlibs () {
 }
 addtask copy_target_rustlibs after do_configure before do_compile
 
-do_copy_missing_third_party_sources () {
-	rm -rf ${S}/third_party/libavif/src
-	cp -r ${UNPACKDIR}/third_party/libavif/src/ ${S}/third_party/libavif/
-}
-addtask copy_missing_third_party_sources after do_patch before do_configure
-
 do_configure() {
 	cd ${S}
 	python3 ./build/linux/unbundle/replace_gn_files.py --system-libraries ${GN_UNBUNDLE_LIBS}
+
+	# Add Rust-style target triples (converted by Yocto's rust-common.bbclass)
+	grep -qxF "${RUST_TARGET_SYS}" ${S}/build/rust/known-target-triples.txt || echo "${RUST_TARGET_SYS}" >> ${S}/build/rust/known-target-triples.txt
+	grep -qxF "${RUST_HOST_SYS}" ${S}/build/rust/known-target-triples.txt || echo "${RUST_HOST_SYS}" >> ${S}/build/rust/known-target-triples.txt
+	grep -qxF "${RUST_BUILD_SYS}" ${S}/build/rust/known-target-triples.txt || echo "${RUST_BUILD_SYS}" >> ${S}/build/rust/known-target-triples.txt
+
 	gn gen --args='${GN_ARGS}' "${OUTPUT_DIR}"
 }
 
@@ -627,4 +630,4 @@ ALLOW_EMPTY:${PN}-dev = "0"
 
 # ERROR: QA Issue: lib32-chromium-ozone-wayland: ELF binary /usr/bin/chromium has relocations in .text [textrel]
 INSANE_SKIP:${PN}:append:x86 = "textrel"
-
+INSANE_SKIP:${PN}-dbg:append = "buildpaths"