2 files changed, 74 insertions, 53 deletions

diff --git a/meta-oe/recipes-devtools/nodejs/nodejs/0002-Using-native-binaries.patch b/meta-oe/recipes-devtools/nodejs/nodejs/0002-Using-native-binaries.patch
index b5142dc9c1..c6fc2dcd76 100644
--- a/meta-oe/recipes-devtools/nodejs/nodejs/0002-Using-native-binaries.patch
+++ b/meta-oe/recipes-devtools/nodejs/nodejs/0002-Using-native-binaries.patch
@@ -8,64 +8,55 @@ Subject: [PATCH] Using native binaries
  tools/v8_gypfiles/v8.gyp | 11 ++++-------
  2 files changed, 6 insertions(+), 9 deletions(-)
 
-diff --git a/node.gyp b/node.gyp
-index 8f4dc518..d9389190 100644
 --- a/node.gyp
 +++ b/node.gyp
-@@ -446,7 +446,7 @@
-                 '<(SHARED_INTERMEDIATE_DIR)/node_code_cache.cc',
+@@ -487,6 +487,7 @@
+               'action_name': 'run_mkcodecache',
+               'process_outputs_as_sources': 1,
+               'inputs': [
++                '<(PRODUCT_DIR)/v8-qemu-wrapper.sh',
+                 '<(mkcodecache_exec)',
                ],
-               'action': [
--                '<@(_inputs)',
-+                'mkcodecache',
-                 '<@(_outputs)',
+               'outputs': [
+@@ -512,6 +513,7 @@
+               'action_name': 'node_mksnapshot',
+               'process_outputs_as_sources': 1,
+               'inputs': [
++                '<(PRODUCT_DIR)/v8-qemu-wrapper.sh',
+                 '<(node_mksnapshot_exec)',
                ],
-             },
-@@ -471,7 +471,7 @@
-                 '<(SHARED_INTERMEDIATE_DIR)/node_snapshot.cc',
-               ],
-               'action': [
--                '<@(_inputs)',
-+                'node_mksnapshot',
-                 '<@(_outputs)',
-               ],
-             },
-diff --git a/tools/v8_gypfiles/v8.gyp b/tools/v8_gypfiles/v8.gyp
-index a506a67d..c91f7dde 100644
+               'outputs': [
 --- a/tools/v8_gypfiles/v8.gyp
 +++ b/tools/v8_gypfiles/v8.gyp
-@@ -140,7 +140,8 @@
-             '<@(torque_outputs)',
-           ],
-           'action': [
--            '<@(_inputs)',
-+            'torque',
-+            '<@(torque_files)',
-             '-o', '<(torque_output_root)/torque-generated',
-             '-v8-root', '<(V8_ROOT)'
+@@ -220,6 +220,7 @@
+         {
+           'action_name': 'run_torque_action',
+           'inputs': [  # Order matters.
++            '<(PRODUCT_DIR)/v8-qemu-wrapper.sh',
+             '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)torque<(EXECUTABLE_SUFFIX)',
+             '<@(torque_files)',
            ],
-@@ -247,9 +248,7 @@
-             '<(generate_bytecode_builtins_list_output)',
+@@ -351,6 +352,7 @@
+         {
+           'action_name': 'generate_bytecode_builtins_list_action',
+           'inputs': [
++            '<(PRODUCT_DIR)/v8-qemu-wrapper.sh',
+             '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)bytecode_builtins_list_generator<(EXECUTABLE_SUFFIX)',
            ],
-           'action': [
--            'python',
--            '<(V8_ROOT)/tools/run.py',
--            '<@(_inputs)',
-+            'bytecode_builtins_list_generator',
-             '<@(_outputs)',
+           'outputs': [
+@@ -533,6 +535,7 @@
+             ],
+           },
+           'inputs': [
++            '<(PRODUCT_DIR)/v8-qemu-wrapper.sh',
+             '<(mksnapshot_exec)',
            ],
-         },
-@@ -1396,9 +1395,7 @@
-             '<(SHARED_INTERMEDIATE_DIR)/src/regexp/special-case.cc',
+           'outputs': [
+@@ -1448,6 +1451,7 @@
+         {
+           'action_name': 'run_gen-regexp-special-case_action',
+           'inputs': [
++            '<(PRODUCT_DIR)/v8-qemu-wrapper.sh',
+             '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)gen-regexp-special-case<(EXECUTABLE_SUFFIX)',
            ],
-           'action': [
--            'python',
--            '<(V8_ROOT)/tools/run.py',
--            '<@(_inputs)',
-+            'gen-regexp-special-case',
-             '<@(_outputs)',
-           ],
-         },
--- 
-2.20.1
-
+           'outputs': [
diff --git a/meta-oe/recipes-devtools/nodejs/nodejs_14.16.1.bb b/meta-oe/recipes-devtools/nodejs/nodejs_14.16.1.bb
index 32bdd713b5..aef83cc31c 100644
--- a/meta-oe/recipes-devtools/nodejs/nodejs_14.16.1.bb
+++ b/meta-oe/recipes-devtools/nodejs/nodejs_14.16.1.bb
@@ -4,9 +4,9 @@ LICENSE = "MIT & BSD & Artistic-2.0"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=85bf260d8b6de1588f57abc5dc66587c"
 
 DEPENDS = "openssl"
-DEPENDS_append_class-target = " nodejs-native"
+DEPENDS_append_class-target = " qemu-native"
 
-inherit pkgconfig python3native
+inherit pkgconfig python3native qemu
 
 COMPATIBLE_MACHINE_armv4 = "(!.*armv4).*"
 COMPATIBLE_MACHINE_armv5 = "(!.*armv5).*"
@@ -93,6 +93,35 @@ python do_unpack() {
         shutil.rmtree(d.getVar('S') + '/deps/zlib', True)
 }
 
+# V8's JIT infrastructure requires binaries such as mksnapshot and
+# mkpeephole to be run in the host during the build. However, these
+# binaries must have the same bit-width as the target (e.g. a x86_64
+# host targeting ARMv6 needs to produce a 32-bit binary). Instead of
+# depending on a third Yocto toolchain, we just build those binaries
+# for the target and run them on the host with QEMU.
+python do_create_v8_qemu_wrapper () {
+    """Creates a small wrapper that invokes QEMU to run some target V8 binaries
+    on the host."""
+    qemu_libdirs = [d.expand('${STAGING_DIR_HOST}${libdir}'),
+                    d.expand('${STAGING_DIR_HOST}${base_libdir}')]
+    qemu_cmd = qemu_wrapper_cmdline(d, d.getVar('STAGING_DIR_HOST', True),
+                                    qemu_libdirs)
+    wrapper_path = d.expand('${B}/v8-qemu-wrapper.sh')
+    with open(wrapper_path, 'w') as wrapper_file:
+        wrapper_file.write("""#!/bin/sh
+
+# This file has been generated automatically.
+# It invokes QEMU to run binaries built for the target in the host during the
+# build process.
+
+%s "$@"
+""" % qemu_cmd)
+    os.chmod(wrapper_path, 0o755)
+}
+
+do_create_v8_qemu_wrapper[dirs] = "${B}"
+addtask create_v8_qemu_wrapper after do_configure before do_compile
+
 # Node is way too cool to use proper autotools, so we install two wrappers to forcefully inject proper arch cflags to workaround gypi
 do_configure () {
     export LD="${CXX}"
@@ -110,6 +139,7 @@ do_configure () {
 
 do_compile () {
     export LD="${CXX}"
+    install -Dm 0755 ${B}/v8-qemu-wrapper.sh ${B}/out/Release/v8-qemu-wrapper.sh
     oe_runmake BUILDTYPE=Release
 }