nodejs: support cross compile without qemu user conditionally

Due to the scope of supported BSPs by qemu-user is limited, such
as a segment fault on armv9 after qemu apply commit [target/arm:
Convert LDAPR/STLR (imm) to decodetree][1]
```
|tmp-glibc/work/neoversen2-crypto-wrs-linux/nodejs/20.5.1/node-v20.5.1/out/
Release/v8-qemu-wrapper.sh: line 7: 3179613 Segmentation fault      (core dumped)
PSEUDO_UNLOAD=1 qemu-aarch64 -r 5.15 -L tmp-glibc/work/neoversen2-crypto-wrs-linux/
nodejs/20.5.1/recipe-sysroot -E LD_LIBRARY_PATH=tmp-glibc/work/neoversen2-crypto-wrs-linux/
nodejs/20.5.1/recipe-sysroot/usr/lib64:tmp-glibc/work/neoversen2-crypto-wrs-linux/
nodejs/20.5.1/recipe-sysroot/usr/lib64 "$@"
```

Upstream nodejs have cross compile support, but it needs host and target
have same bit width (e.g. a x86_64 host targeting arrch64 to produce a
64-bit binary). So:
1. If host and target have different bit width, build with QEMU user as usual;

2. If host and target have same bit width, enable notejs cross compile support:
- The build tools of nodejs is GYP[2], set CC_host, CFLAGS_host,
  CXX_host, CXXFLAGS_host, LDFLAGS_host, AR_host for host build
  which is separated with target build [3]
- Satisfy layer compatibility, set GYP variables in prefuncs of do_configure,
  do_compile and do_install other than in recipe parsing
- Add missing native packages to fix library missing on host build
- Rework libatomic.patch, explicitly link to libatomic for clang
  conditionally

[1] https://github.com/qemu/qemu/commit/2521b6073b7b4b505533a941d4f9600f7585dc78
[2] https://github.com/nodejs/node-gyp
[3] https://github.com/nodejs/node-gyp/blob/main/gyp/docs/UserDocumentation.md#cross-compiling

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-devtools/nodejs/nodejs/libatomic.patch

@@ -1,21 +1,77 @@
-Link mksnapshot with libatomic on x86
+From 15e751e4b79475fb34e4b32a3ca54119b20c564a Mon Sep 17 00:00:00 2001
+From: Hongxu Jia <hongxu.jia@windriver.com>
+Date: Sat, 17 Aug 2024 21:33:18 +0800
+Subject: [PATCH] link libatomic for clang conditionally
 
-Clang-12 on x86 emits atomic builtins
+Clang emits atomic builtin, explicitly link libatomic conditionally:
+- For target build, always link -latomic for clang as usual
+- For host build, if host and target have same bit width, cross compiling
+  is enabled, and host toolchain is gcc which does not link -latomic;
+  if host and target have different bit width, no cross compiling,
+  host build is the same with target build that requires to link
+  -latomic;
 
-Fixes
+Fix:
-| module-compiler.cc:(.text._ZN2v88internal4wasm12_GLOBAL__N_123ExecuteCompilationUnitsERKSt10shared_ptrINS2_22BackgroundCompileTokenEEPNS0_8CountersEiNS2_19CompileBaselineOnlyE+0x558): un
+|tmp-glibc/work/core2-64-wrs-linux/nodejs/20.13.0/node-v20.13.0/out/Release/node_js2c: error while loading shared libraries: libatomic.so.1: cannot open shared object file: No such file or directory
-defined reference to `__atomic_load'
 
-Upstream-Status: Pending
+Upstream-Status: Inappropriate [OE specific]
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
 
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ node.gyp                 | 13 ++++++++++++-
+ tools/v8_gypfiles/v8.gyp | 15 ++++++++++++---
+ 2 files changed, 24 insertions(+), 4 deletions(-)
+
+diff --git a/node.gyp b/node.gyp
+index b425f443..f296f35c 100644
+--- a/node.gyp
++++ b/node.gyp
+@@ -487,7 +487,18 @@
+         ],
+       }],
+       ['OS == "linux" and llvm_version != "0.0"', {
+-        'libraries': ['-latomic'],
++        'target_conditions': [
++           ['_toolset=="host"', {
++             'conditions': [
++               ['"<!(echo $HOST_AND_TARGET_SAME_WIDTH)"=="0"', {
++                 'libraries': ['-latomic'],
++               }],
++             ],
++           }],
++           ['_toolset=="target"', {
++             'libraries': ['-latomic'],
++           }],
++        ],
+       }],
+     ],
+   },
+diff --git a/tools/v8_gypfiles/v8.gyp b/tools/v8_gypfiles/v8.gyp
+index b23263cf..dcabf4ca 100644
 --- a/tools/v8_gypfiles/v8.gyp
 +++ b/tools/v8_gypfiles/v8.gyp
-@@ -1436,6 +1436,7 @@
+@@ -1100,9 +1100,18 @@
-     {
+         # Platforms that don't have Compare-And-Swap (CAS) support need to link atomic library
-       'target_name': 'mksnapshot',
+         # to implement atomic memory access
-       'type': 'executable',
+         ['v8_current_cpu in ["mips64", "mips64el", "ppc", "arm", "riscv64", "loong64"]', {
-+      'libraries': [ '-latomic' ],
+-          'link_settings': {
-       'dependencies': [
+-            'libraries': ['-latomic', ],
-         'v8_base_without_compiler',
+-          },
-         'v8_compiler_for_mksnapshot',
++          'target_conditions': [
++             ['_toolset=="host"', {
++               'conditions': [
++                 ['"<!(echo $HOST_AND_TARGET_SAME_WIDTH)"=="0"', {
++                   'libraries': ['-latomic'],
++                 }],
++               ],
++             }],
++             ['_toolset=="target"', {
++               'libraries': ['-latomic', ],
++             }],
++           ],
+         }],
+       ],
+     },  # v8_base_without_compiler
+-- 
+2.35.5
+

meta-oe/recipes-devtools/nodejs/nodejs_20.16.0.bb

@@ -5,11 +5,11 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=cef54676c547a5bbab44aa8be3be9ef7"
 
 CVE_PRODUCT = "nodejs node.js"
 
-DEPENDS = "openssl file-replacement-native python3-packaging-native"
+DEPENDS = "openssl openssl-native file-replacement-native python3-packaging-native"
 DEPENDS:append:class-target = " qemu-native"
 DEPENDS:append:class-native = " c-ares-native"
 
-inherit pkgconfig python3native qemu ptest
+inherit pkgconfig python3native qemu ptest siteinfo
 
 COMPATIBLE_MACHINE:armv4 = "(!.*armv4).*"
 COMPATIBLE_MACHINE:armv5 = "(!.*armv5).*"
@@ -24,15 +24,12 @@ SRC_URI = "http://nodejs.org/dist/v${PV}/node-v${PV}.tar.xz \
            file://0004-v8-don-t-override-ARM-CFLAGS.patch \
            file://system-c-ares.patch \
            file://0001-liftoff-Correct-function-signatures.patch \
+           file://libatomic.patch \
            file://run-ptest \
            "
-
 SRC_URI:append:class-target = " \
            file://0001-Using-native-binaries.patch \
            "
-SRC_URI:append:toolchain-clang:x86 = " \
-           file://libatomic.patch \
-           "
 SRC_URI:append:toolchain-clang:powerpc64le = " \
            file://0001-ppc64-Do-not-use-mminimal-toc-with-clang.patch \
            "
@@ -66,28 +63,14 @@ ARCHFLAGS ?= ""
 
 PACKAGECONFIG ??= "ares brotli icu zlib"
 
-PACKAGECONFIG[ares] = "--shared-cares,,c-ares"
+PACKAGECONFIG[ares] = "--shared-cares,,c-ares c-ares-native"
-PACKAGECONFIG[brotli] = "--shared-brotli,,brotli"
+PACKAGECONFIG[brotli] = "--shared-brotli,,brotli brotli-native"
-PACKAGECONFIG[icu] = "--with-intl=system-icu,--without-intl,icu"
+PACKAGECONFIG[icu] = "--with-intl=system-icu,--without-intl,icu icu-native"
 PACKAGECONFIG[libuv] = "--shared-libuv,,libuv"
 PACKAGECONFIG[nghttp2] = "--shared-nghttp2,,nghttp2"
 PACKAGECONFIG[shared] = "--shared"
 PACKAGECONFIG[zlib] = "--shared-zlib,,zlib"
 
-# We don't want to cross-compile during target compile,
-# and we need to use the right flags during host compile,
-# too.
-EXTRA_OEMAKE = "\
-    CC.host='${CC} -pie -fPIE' \
-    CFLAGS.host='${CPPFLAGS} ${CFLAGS}' \
-    CXX.host='${CXX} -pie -fPIE' \
-    CXXFLAGS.host='${CPPFLAGS} ${CXXFLAGS}' \
-    LDFLAGS.host='${LDFLAGS}' \
-    AR.host='${AR}' \
-    \
-    builddir_name=./ \
-"
-
 EXTRANATIVEPATH += "file-native"
 
 python prune_sources() {
@@ -110,9 +93,11 @@ do_unpack[postfuncs] += "prune_sources"
 # 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
+# host targeting ARMv6 needs to produce a 32-bit binary).
-# depending on a third Yocto toolchain, we just build those binaries
+# 1. If host and target have the different bit width, run those
-# for the target and run them on the host with QEMU.
+#    binaries for the target and run them on the host with QEMU.
+# 2. If host and target have the same bit width, enable upstream
+#    cross crompile support and no QEMU
 python do_create_v8_qemu_wrapper () {
     """Creates a small wrapper that invokes QEMU to run some target V8 binaries
     on the host."""
@@ -120,6 +105,10 @@ python do_create_v8_qemu_wrapper () {
                     d.expand('${STAGING_DIR_HOST}${base_libdir}')]
     qemu_cmd = qemu_wrapper_cmdline(d, d.getVar('STAGING_DIR_HOST'),
                                     qemu_libdirs)
+
+    if d.getVar("HOST_AND_TARGET_SAME_WIDTH") == "1":
+        qemu_cmd = ""
+
     wrapper_path = d.expand('${B}/v8-qemu-wrapper.sh')
     with open(wrapper_path, 'w') as wrapper_file:
         wrapper_file.write("""#!/bin/sh
@@ -138,6 +127,14 @@ addtask create_v8_qemu_wrapper after do_configure before do_compile
 
 LDFLAGS:append:x86 = " -latomic"
 
+export CC_host
+export CFLAGS_host
+export CXX_host
+export CXXFLAGS_host
+export LDFLAGS_host
+export AR_host
+export HOST_AND_TARGET_SAME_WIDTH
+
 CROSS_FLAGS = "--cross-compiling"
 CROSS_FLAGS:class-native = "--no-cross-compiling"
 
@@ -179,8 +176,36 @@ RDEPENDS:${PN}-npm = "bash python3-core python3-shell python3-datetime \
 PACKAGES =+ "${PN}-systemtap"
 FILES:${PN}-systemtap = "${datadir}/systemtap"
 
-BBCLASSEXTEND = "native"
+do_configure[prefuncs] += "set_gyp_variables"
+do_compile[prefuncs] += "set_gyp_variables"
+do_install[prefuncs] += "set_gyp_variables"
+python set_gyp_variables () {
+    if d.getVar("HOST_AND_TARGET_SAME_WIDTH") == "0":
+        # We don't want to cross-compile during target compile,
+        # and we need to use the right flags during host compile,
+        # too.
+        d.setVar("CC_host", d.getVar("CC") + " -pie -fPIE")
+        d.setVar("CFLAGS_host", d.getVar("CFLAGS"))
+        d.setVar("CXX_host", d.getVar("CXX") + " -pie -fPIE")
+        d.setVar("CXXFLAGS_host", d.getVar("CXXFLAGS"))
+        d.setVar("LDFLAGS_host", d.getVar("LDFLAGS"))
+        d.setVar("AR_host", d.getVar("AR"))
+    elif d.getVar("HOST_AND_TARGET_SAME_WIDTH") == "1":
+        # Enable upstream cross crompile support
+        d.setVar("CC_host", d.getVar("BUILD_CC"))
+        d.setVar("CFLAGS_host", d.getVar("BUILD_CFLAGS"))
+        d.setVar("CXX_host", d.getVar("BUILD_CXX"))
+        d.setVar("CXXFLAGS_host", d.getVar("BUILD_CXXFLAGS"))
+        d.setVar("LDFLAGS_host", d.getVar("BUILD_LDFLAGS"))
+        d.setVar("AR_host", d.getVar("BUILD_AR"))
+}
 
-# http://errors.yoctoproject.org/Errors/Details/766923/
+python __anonymous () {
-# TOPDIR/tmp-glibc/work/core2-64-oe-linux/nodejs/20.12.2/node-v20.12.2/out/Release/v8-qemu-wrapper.sh: line 7: 252447 Illegal instruction     (core dumped) PSEUDO_UNLOAD=1 qemu-x86_64 -r 5.15 -cpu Nehalem,check=false -L TOPDIR/tmp-glibc/work/core2-64-oe-linux/nodejs/20.12.2/recipe-sysroot -E LD_LIBRARY_PATH=TOPDIR/tmp-glibc/work/core2-64-oe-linux/nodejs/20.12.2/recipe-sysroot/usr/lib:TOPDIR/tmp-glibc/work/core2-64-oe-linux/nodejs/20.12.2/recipe-sysroot/usr/lib "$@"
+    # 32 bit target and 64 bit host (x86-64 or aarch64) have different bit width
-# TODO: Fix with gcc-14
+    if d.getVar("SITEINFO_BITS") == "32" and "64" in d.getVar("BUILD_ARCH"):
+        d.setVar("HOST_AND_TARGET_SAME_WIDTH", "0")
+    else:
+        d.setVar("HOST_AND_TARGET_SAME_WIDTH", "1")
+}
+
+BBCLASSEXTEND = "native"