Add QNX8 aarch64 build support

.bazelrc

@@ -30,6 +30,11 @@ build:_common --@score_logging//score/datarouter/build_configuration_flags:enabl
 build:_common --@score_logging//score/datarouter/build_configuration_flags:file_transfer=False
 build:_common --@score_logging//score/datarouter/build_configuration_flags:use_local_vlan=True
 
+# ─── QNX common flags (shared by all QNX configs) ────────────────────────────
+build:_qnx_common --host_platform=@score_bazel_platforms//:x86_64-linux-gcc_12.2.0-posix
+build:_qnx_common --action_env=BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN=1
+build:_qnx_common --incompatible_enable_cc_toolchain_resolution
+
 build:qnx-x86_64 --config=_common
 build:qnx-x86_64 --noexperimental_merged_skyframe_analysis_execution
 build:qnx-x86_64 --action_env=BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN=1
@@ -41,6 +46,16 @@ build:qnx-x86_64 --extra_toolchains=@score_qcc_x86_64_toolchain//:x86_64-qnx-sdp
 build:qnx-x86_64 --extra_toolchains=@score_qnx_x86_64_ifs_toolchain//:ifs-x86_64-qnx-sdp_8.0.0
 build:qnx-x86_64 --extra_toolchains=@score_toolchains_rust//toolchains/ferrocene:ferrocene_x86_64_pc_nto_qnx800
 
+# ─── QNX aarch64 cross-compilation config ────────────────────────────────────
+# Usage: bazel build --config=qnx-aarch64 //target
+build:qnx-aarch64 --config=_common
+build:qnx-aarch64 --config=_qnx_common
+build:qnx-aarch64 --platforms=@score_bazel_platforms//:aarch64-qnx-sdp_8.0.0-posix
+build:qnx-aarch64 --extra_toolchains=@score_qcc_aarch64_toolchain//:aarch64-qnx-sdp_8.0.0
+build:qnx-aarch64 --extra_toolchains=@score_toolchains_rust//toolchains/ferrocene:ferrocene_aarch64_unknown_nto_qnx800
+build:qnx-aarch64 --extra_toolchains=@score_qnx_aarch64_ifs_toolchain//:ifs-aarch64-qnx-sdp_8.0.0
+
+
 build:linux-x86_64 --config=_common
 build:linux-x86_64 --extra_toolchains=@score_gcc_x86_64_toolchain//:x86_64-linux-gcc_12.2.0
 build:linux-x86_64 --platforms=@score_bazel_platforms//:x86_64-linux-gcc_12.2.0-posix

bazel_common/score_images.MODULE.bazel

@@ -47,7 +47,16 @@ imagefs.toolchain(
     target_os = "qnx",
     type = "ifs",
 )
+imagefs.toolchain(
+    name = "score_qnx_aarch64_ifs_toolchain",
+    sdp_to_import = "@score_qcc_aarch64_toolchain_pkg",
+    sdp_version = "8.0.0",
+    target_cpu = "aarch64",
+    target_os = "qnx",
+    type = "ifs",
+)
 use_repo(
     imagefs,
+    "score_qnx_aarch64_ifs_toolchain",
     "score_qnx_x86_64_ifs_toolchain",
 )

bazel_common/score_qnx_toolchains.MODULE.bazel

@@ -30,6 +30,7 @@ qcc.toolchain(
 use_repo(
     qcc,
     "score_qcc_aarch64_toolchain",
+    "score_qcc_aarch64_toolchain_pkg",
     "score_qcc_x86_64_toolchain",
     "score_qcc_x86_64_toolchain_pkg",
 )

images/qnx_aarch64/BUILD

@@ -0,0 +1,30 @@
+# *******************************************************************************
+# Copyright (c) 2025 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+load("@rules_shell//shell:sh_binary.bzl", "sh_binary")
+
+alias(
+    name = "image",
+    actual = "//images/qnx_aarch64/build:init",
+    visibility = ["//visibility:public"],
+)
+
+sh_binary(
+    name = "run",
+    srcs = ["//runners/qemu_aarch64/scripts:run_qemu_qnx.sh"],
+    args = [
+        "$(location :image)",
+    ],
+    data = [
+        ":image",
+    ],
+)

images/qnx_aarch64/build/BUILD

@@ -0,0 +1,72 @@
+# *******************************************************************************
+# Copyright (c) 2025 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+load("@score_rules_imagefs//rules/qnx:ifs.bzl", "qnx_ifs")
+
+filegroup(
+    name = "scripts",
+    srcs = [
+        "//images/qnx_aarch64/configs:startup.sh",
+    ],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "configs",
+    srcs = [
+        "//images/qnx_aarch64/configs:dhcpcd.conf",
+        "//images/qnx_aarch64/configs:group",
+        "//images/qnx_aarch64/configs:hostname",
+        "//images/qnx_aarch64/configs:network_capture.sh",
+        "//images/qnx_aarch64/configs:network_setup.sh",
+        "//images/qnx_aarch64/configs:network_setup_dhcp.sh",
+        "//images/qnx_aarch64/configs:passwd",
+        "//images/qnx_aarch64/configs:profile",
+        "//images/qnx_aarch64/configs:qcrypto.conf",
+        "//images/qnx_aarch64/configs:ssh_host_rsa_key",
+        "//images/qnx_aarch64/configs:ssh_host_rsa_key.pub",
+        "//images/qnx_aarch64/configs:sshd_config",
+    ],
+    visibility = ["//visibility:private"],
+)
+
+qnx_ifs(
+    name = "init",
+    srcs = [
+        ":configs",
+        ":scripts",
+        ":system.build",
+        ":system_dir",
+        "//feature_integration_tests/configs:etc_configs",
+        "//feature_integration_tests/configs/datarouter:etc_configs",
+        "//showcases",
+        "@score_logging//score/datarouter",
+        "@score_persistency//tests/test_scenarios/cpp:test_scenarios",
+    ],
+    build_file = "init.build",
+    ext_repo_maping = {
+        "BUNDLE_PATH": "$(location //showcases:showcases)",
+        "DATAROUTER_PATH": "$(location @score_logging//score/datarouter:datarouter)",
+    },
+    visibility = [
+        "//visibility:public",
+    ],
+)
+
+filegroup(
+    name = "system_dir",
+    srcs = [
+        "init.build",
+        "system.build",
+    ],
+)

images/qnx_aarch64/build/init.build

@@ -0,0 +1,98 @@
+# *******************************************************************************
+# Copyright (c) 2025 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+
+###############################################################################
+#
+# Example image built based on minimal configuration from QNX
+#
+###############################################################################
+
+[-optional]
+
+[image=0x3600000]                          # Set image size to 56MB (0x3600000 bytes)
+[virtual=aarch64le,raw -compress] boot = { # Configure for aarch64le architecture with raw compressed boot
+    # TODO: replace startup-virt with the actual aarch64 startup binary for the target BSP.
+    # QNX SDP 8.0.0 ships no generic QEMU-virt startup; source one from the appropriate BSP.
+    startup-virt -v                        # Start aarch64 kernel - board-specific startup binary required
+    PATH=/proc/boot                      # Set executable search path to boot directory
+    LD_LIBRARY_PATH=/proc/boot           # Set library search path to boot directory
+    [+keeplinked] procnto-smp-instr      # Keep process manager linked and instrumented for SMP
+}
+
+[+script] startup-script = {             # Define startup script that runs during boot
+   procmgr_symlink /dev/shmem /tmp       # Create symbolic link from shared memory to /tmp
+    # /tmp will be mounted later as a proper RAM disk
+
+    display_msg Welcome to QNX OS 8.0 on aarch64 tweaked for S-CORE!  # Display welcome message
+
+    # These env variables get inherited by all programs which follow
+    SYSNAME=nto                          # Set system name to "nto" (Neutrino)
+    TERM=qansi                           # Set terminal type to QNX ANSI
+
+    devc-ser8250 &                       # Start serial driver in background
+    waitfor /dev/ser1                    # Wait for serial device to be available
+    reopen /dev/ser1                     # Reopen serial device for console I/O
+
+    display_msg Placeholder for startup script  # Display startup message
+    etc/startup.sh                       # Execute main startup script
+
+    [+session] /bin/sh &                 # Start shell session in background
+}
+
+# Essential utilities - core system commands needed for basic operation
+# These binaries provide fundamental system functionality and process management
+
+# Process and system management utilities
+on                          # Command execution utility - runs commands with specific options
+[type=link] waitfor=on         # Create symbolic link: waitfor -> on (waits for resources to become available)
+[type=link] ability=on         # Create symbolic link: ability -> on (manages process abilities/privileges)
+
+# Shell and command interpreter
+ksh                        # Korn shell - provides command-line interface and scripting
+pidin                      # Process information display - shows running processes (like 'ps' on Linux)
+[type=link] /bin/sh=/proc/boot/ksh # Create symbolic link: sh -> ksh (standard shell link)
+
+# File system utilities
+mount                      # File system mount utility - mounts/unmounts file systems
+getconf               # System configuration query utility - retrieves system parameters
+[type=link] setconf=getconf   # Create symbolic link: setconf -> getconf (sets configuration parameters)
+
+# Device drivers for hardware access
+devc-ser8250             # Serial port driver for 8250/16550 UART controllers (console access)
+
+# System logging utilities
+slog2info                 # System log viewer - displays logged messages
+slogger2                  # System logging daemon - collects and manages log messages
+
+# Essential libraries - core runtime libraries required for system operation
+# These libraries provide fundamental services like C runtime, networking, and logging
+
+# Standard C library - provides basic C runtime functions
+libc.so.6                          # Main C library (malloc, printf, file I/O, etc.)
+
+# Dynamic linker/loader - handles dynamic library loading at runtime
+/usr/lib/ldqnx-64.so.2=ldqnx-64.so.2   # 64-bit QNX dynamic linker (loads shared libraries)
+
+# Networking library - provides socket and network communication functions
+libsocket.so.4                     # Socket library (TCP/IP, UDP, network I/O functions)
+[type=link] libsocket.so=libsocket.so.4 # Create version-neutral symbolic link
+
+# System logging library - provides logging services for applications
+libslog2.so.1                      # System logging library (slog2_* functions)
+[type=link] libslog2.so=libslog2.so.1   # Create version-neutral symbolic link
+
+# Orchestrator example needed
+[type=link] /data=/tmp_ram
+
+[+include] ${MAIN_BUILD_FILE_DIR}/system.build   # Include additional system build configurations