deps: rebuild V8 without sandbox (enables zero-copy ArrayBuffer)

.gitattributes

@@ -0,0 +1 @@
+*.a binary

.github/workflows/build-v8-deps.yml

@@ -101,6 +101,10 @@ jobs:
           # use custom libcxx for all cross-compiles to avoid system header conflicts
           USE_SYSROOT="false"
           USE_CUSTOM_LIBCXX="false"
+          IS_CLANG="true"
+          if [[ "${{ matrix.target_os }}" == "linux" && "${{ matrix.target_arch }}" == "amd64" ]]; then
+            IS_CLANG="false"
+          fi
           if [[ "${{ matrix.target_os }}" == "linux" && "${{ matrix.target_arch }}" == "arm64" ]]; then
             USE_SYSROOT="true"
             USE_CUSTOM_LIBCXX="true"
@@ -111,13 +115,14 @@ jobs:
 
           cat > /tmp/gn_args.txt << EOF
           is_debug=false
-          is_clang=${{ matrix.target_os != 'linux' && 'true' || 'true' }}
+          is_clang=${IS_CLANG}
           target_os="${{ matrix.target_os == 'darwin' && 'mac' || matrix.target_os }}"
           target_cpu="${TARGET_CPU}"
           v8_target_cpu="${TARGET_CPU}"
           clang_use_chrome_plugins=false
           use_custom_libcxx=${USE_CUSTOM_LIBCXX}
           use_sysroot=${USE_SYSROOT}
+          use_thin_lto=false
           use_glib=false
           symbol_level=0
           strip_debug_info=true
@@ -168,7 +173,9 @@ jobs:
           import build
           build.args = Args()
           build.v8_path = os.path.join(os.getcwd(), 'v8')
-          build.is_clang = True
+          # Use system ar on Linux to produce GNU-format archives
+          # compatible with GNU ld (llvm-ar uses SysV64 format that ld rejects)
+          build.is_clang = ('${{ matrix.target_os }}' != 'linux')
 
           dest_path = os.path.join(os.getcwd(), '${{ matrix.target_os }}_${{ matrix.target_arch }}')
           os.makedirs(dest_path, exist_ok=True)

.gitignore

@@ -11,3 +11,14 @@ coverage.out
 .idea/
 .vscode/
 .cursor
+
+# V8 local build artifacts (gclient/depot_tools)
+deps/.cipd/
+deps/.gclient_entries
+deps/.gclient_previous_*
+deps/.gcs_entries
+deps/__pycache__/
+deps/_bad_scm/
+deps/v8/
+deps/depot_tools/
+deps/.build/

cgo.go

@@ -3,6 +3,6 @@ package v8go
 //go:generate clang-format -i --verbose -style=Chromium v8go.h v8go.cc
 
 // #cgo CXXFLAGS: -fno-rtti -fPIC -std=c++20 -I${SRCDIR}/deps/include -Wall
-// #cgo CXXFLAGS: -DV8_COMPRESS_POINTERS -DV8_31BIT_SMIS_ON_64BIT_ARCH -DV8_ENABLE_SANDBOX
+// #cgo CXXFLAGS: -DV8_COMPRESS_POINTERS -DV8_31BIT_SMIS_ON_64BIT_ARCH
 // #cgo CXXFLAGS: -DV8_DEPRECATION_WARNINGS -DV8_IMMINENT_DEPRECATION_WARNINGS
 import "C"

deps/build.py

@@ -75,6 +75,7 @@ def get_custom_deps():
 v8_target_cpu="%s"
 clang_use_chrome_plugins=false
 use_custom_libcxx=false
+use_thin_lto=false
 use_sysroot=false
 use_glib=false
 symbol_level=%s

deps/darwin_amd64/cgo.go

@@ -0,0 +1,6 @@
+package darwin_amd64
+
+// #cgo LDFLAGS: -pthread
+// #cgo LDFLAGS: ${SRCDIR}/libv8-0.a ${SRCDIR}/libv8-1.a ${SRCDIR}/libv8-2.a
+// #cgo LDFLAGS: -lc++ -framework CoreFoundation
+import "C"

deps/darwin_amd64/go.mod

@@ -0,0 +1,3 @@
+module github.com/tommie/v8go/deps/darwin_amd64
+
+go 1.19

deps/darwin_amd64/libmanifest

@@ -0,0 +1,3 @@
+libv8-0.a
+libv8-1.a
+libv8-2.a

deps/darwin_amd64/vendor.go

@@ -0,0 +1 @@
+package darwin_amd64

deps/darwin_arm64/cgo.go

@@ -0,0 +1,6 @@
+package darwin_arm64
+
+// #cgo LDFLAGS: -pthread
+// #cgo LDFLAGS: ${SRCDIR}/libv8-0.a ${SRCDIR}/libv8-1.a
+// #cgo LDFLAGS: -lc++ -framework CoreFoundation
+import "C"

deps/darwin_arm64/go.mod

@@ -0,0 +1,3 @@
+module github.com/tommie/v8go/deps/darwin_arm64
+
+go 1.19

deps/darwin_arm64/libmanifest

@@ -0,0 +1,2 @@
+libv8-0.a
+libv8-1.a

deps/darwin_arm64/vendor.go

@@ -0,0 +1 @@
+package darwin_arm64

deps/linux_amd64/cgo.go

@@ -0,0 +1,6 @@
+package linux_amd64
+
+// #cgo LDFLAGS: -pthread
+// #cgo LDFLAGS: -Wl,--start-group ${SRCDIR}/libv8-0.a ${SRCDIR}/libv8-1.a ${SRCDIR}/libv8-2.a -Wl,--end-group
+// #cgo LDFLAGS: -ldl -lm -lstdc++
+import "C"

deps/linux_amd64/go.mod

@@ -0,0 +1,3 @@
+module github.com/tommie/v8go/deps/linux_amd64
+
+go 1.19