automation: Add xen builds for the ECLAIR analyses

This patch defines an ARM64 and a X86_64 build for the
ECLAIR pipelines.

These files are used by the analyze.sh script in
automation/eclair_analysis: it initially calls prepare.sh,
then runs into an ECLAIR environment build.sh.

Only the toolchain invocations triggered by build.sh
are analyzed; the prepare.sh script is instead intended
to perform all the required operations for building xen
that are not supposed to be analyzed: e.g. dependencies
build.

Signed-off-by: Simone Ballarin <simone.ballarin@bugseng.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

automation/eclair_analysis/Makefile.prepare

@@ -0,0 +1,6 @@
+include Makefile
+prepare:
+	$(Q)$(MAKE) $(build)=tools
+	$(Q)$(MAKE) $(build)=. include/xen/compile.h
+	$(Q)$(MAKE) $(build)=include all
+	$(Q)$(MAKE) $(build)=arch/$(SRCARCH) include

automation/eclair_analysis/build.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+# Stop immediately if any executed command has exit status different from 0.
+set -e
+
+script_name="$(basename "$0")"
+
+fatal() {
+  echo "${script_name}: $*" >&2
+  exit 1
+}
+
+usage() {
+  fatal "Usage: ${script_name} <ARM64|X86_64>"
+}
+
+if [ $# -ne 1 ]; then
+  usage
+fi
+
+if [ "$1" = "X86_64" ]; then
+  export CROSS_COMPILE=
+  export XEN_TARGET_ARCH=x86_64
+elif [ "$1" = "ARM64" ]; then
+  export CROSS_COMPILE=aarch64-linux-gnu-
+  export XEN_TARGET_ARCH=arm64
+else
+  fatal "Unknown configuration: $1"
+fi
+
+if [[ -f /proc/cpuinfo ]]; then
+  PROCESSORS=$(grep -c ^processor /proc/cpuinfo)
+else
+  PROCESSORS=6
+fi
+
+(
+  cd xen
+
+  make "-j${PROCESSORS}" "-l${PROCESSORS}.0"    \
+       "CROSS_COMPILE=${CROSS_COMPILE}"         \
+       "CC=${CROSS_COMPILE}gcc-12"              \
+       "CXX=${CROSS_COMPILE}g++-12"             \
+       "XEN_TARGET_ARCH=${XEN_TARGET_ARCH}"
+)

automation/eclair_analysis/prepare.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+# Stop immediately if any executed command has exit status different from 0.
+set -e
+
+script_name="$(basename "$0")"
+script_dir="$(
+  cd "$(dirname "$0")"
+  echo "${PWD}"
+)"
+
+fatal() {
+  echo "${script_name}: $*" >&2
+  exit 1
+}
+
+usage() {
+  fatal "Usage: ${script_name}"
+}
+
+if [ $# -ne 1 ]; then
+  usage
+  exit 1
+fi
+
+export XEN_TARGET_ARCH
+
+if [ "$1" = "X86_64" ]; then
+  CONFIG_FILE="${script_dir}/xen_x86_config"
+  XEN_TARGET_ARCH=x86_64
+elif [ "$1" = "ARM64" ]; then
+  CONFIG_FILE="${script_dir}/xen_arm_config"
+  XEN_TARGET_ARCH=arm64
+else
+  fatal "Unknown configuration: $1"
+fi
+
+(
+    cd xen
+    cp "${CONFIG_FILE}" .config
+    make clean
+    make -f ${script_dir}/Makefile.prepare prepare
+)

automation/eclair_analysis/xen_arm_config

@@ -0,0 +1,147 @@
+# File provided in
+# Re: Xen MISRA C: Source files in scope and out of scope
+# from:	Stefano Stabellini <stefano.stabellini@amd.com>
+# date:	6 giu 2023, 02:53
+
+#
+# Automatically generated file; DO NOT EDIT.
+# Xen/arm 4.18-unstable Configuration
+#
+CONFIG_CC_IS_GCC=y
+CONFIG_GCC_VERSION=90400
+CONFIG_CLANG_VERSION=0
+CONFIG_LD_IS_GNU=y
+CONFIG_CC_HAS_VISIBILITY_ATTRIBUTE=y
+CONFIG_ARM_64=y
+CONFIG_ARM=y
+CONFIG_ARCH_DEFCONFIG="arch/arm/configs/arm64_defconfig"
+
+# UBSAN
+CONFIG_UBSAN=n
+
+#
+# Architecture Features
+#
+CONFIG_ARM64_SVE=n
+CONFIG_64BIT=y
+CONFIG_NR_CPUS=4
+# CONFIG_ACPI is not set
+CONFIG_ARM_EFI=y
+CONFIG_GICV3=y
+CONFIG_HAS_ITS=y
+CONFIG_HVM=y
+# CONFIG_NEW_VGIC is not set
+CONFIG_SBSA_VUART_CONSOLE=y
+CONFIG_ARM_SSBD=y
+CONFIG_HARDEN_BRANCH_PREDICTOR=y
+# CONFIG_TEE is not set
+# CONFIG_STATIC_SHM is not set
+# end of Architecture Features
+
+#
+# ARM errata workaround via the alternative framework
+#
+CONFIG_ARM64_ERRATUM_827319=y
+CONFIG_ARM64_ERRATUM_824069=y
+CONFIG_ARM64_ERRATUM_819472=y
+CONFIG_ARM64_ERRATUM_843419=y
+CONFIG_ARM64_ERRATUM_832075=y
+CONFIG_ARM64_ERRATUM_834220=y
+CONFIG_ARM_ERRATUM_858921=y
+CONFIG_ARM64_WORKAROUND_REPEAT_TLBI=y
+CONFIG_ARM64_ERRATUM_1286807=y
+# end of ARM errata workaround via the alternative framework
+
+CONFIG_ARM64_HARDEN_BRANCH_PREDICTOR=y
+# CONFIG_ALL_PLAT is not set
+# CONFIG_QEMU is not set
+# CONFIG_RCAR3 is not set
+CONFIG_MPSOC=y
+# CONFIG_NO_PLAT is not set
+CONFIG_MPSOC_PLATFORM=y
+
+#
+# Common Features
+#
+CONFIG_GRANT_TABLE=y
+CONFIG_HAS_ALTERNATIVE=y
+CONFIG_HAS_DEVICE_TREE=y
+CONFIG_HAS_FAST_MULTIPLY=y
+CONFIG_HAS_PDX=y
+CONFIG_HAS_PMAP=y
+# CONFIG_MEM_ACCESS is not set
+CONFIG_STATIC_MEMORY=y
+
+#
+# Speculative hardening
+#
+CONFIG_SPECULATIVE_HARDEN_ARRAY=y
+# end of Speculative hardening
+
+# CONFIG_HYPFS is not set
+CONFIG_IOREQ_SERVER=y
+# CONFIG_EFI_SET_VIRTUAL_ADDRESS_MAP is not set
+# CONFIG_XSM is not set
+# CONFIG_ARGO is not set
+
+#
+# Schedulers
+#
+# CONFIG_SCHED_CREDIT is not set
+CONFIG_SCHED_CREDIT2=y
+# CONFIG_SCHED_RTDS is not set
+# CONFIG_SCHED_ARINC653 is not set
+CONFIG_SCHED_NULL=y
+CONFIG_SCHED_CREDIT2_DEFAULT=y
+# CONFIG_SCHED_NULL_DEFAULT is not set
+CONFIG_SCHED_DEFAULT="credit2"
+# end of Schedulers
+
+CONFIG_BOOT_TIME_CPUPOOLS=y
+# CONFIG_LIVEPATCH is not set
+# CONFIG_ENFORCE_UNIQUE_SYMBOLS is not set
+CONFIG_SUPPRESS_DUPLICATE_SYMBOL_WARNINGS=y
+CONFIG_CMDLINE=""
+CONFIG_DOM0_MEM=""
+CONFIG_DTB_FILE=""
+# CONFIG_TRACEBUFFER is not set
+# end of Common Features
+
+#
+# Device Drivers
+#
+# CONFIG_HAS_NS16550 is not set
+CONFIG_HAS_CADENCE_UART=y
+# CONFIG_HAS_IMX_LPUART is not set
+# CONFIG_HAS_MVEBU is not set
+# CONFIG_HAS_MESON is not set
+CONFIG_HAS_PL011=y
+# CONFIG_HAS_SCIF is not set
+CONFIG_SERIAL_TX_BUFSIZE=16384
+CONFIG_HAS_PASSTHROUGH=y
+CONFIG_ARM_SMMU=y
+CONFIG_ARM_SMMU_V3=y
+# CONFIG_IPMMU_VMSA is not set
+CONFIG_IOMMU_FORCE_PT_SHARE=y
+# end of Device Drivers
+
+CONFIG_EXPERT=y
+CONFIG_UNSUPPORTED=y
+
+#
+# Debugging Options
+#
+CONFIG_DEBUG=y
+CONFIG_FRAME_POINTER=y
+CONFIG_COVERAGE=y
+CONFIG_DEBUG_LOCK_PROFILE=y
+CONFIG_DEBUG_LOCKS=y
+CONFIG_PERF_COUNTERS=y
+CONFIG_PERF_ARRAYS=y
+CONFIG_VERBOSE_DEBUG=y
+CONFIG_DEVICE_TREE_DEBUG=y
+CONFIG_SCRUB_DEBUG=y
+CONFIG_DEBUG_TRACE=y
+CONFIG_XMEM_POOL_POISON=y
+CONFIG_DEBUG_INFO=y
+# end of Debugging Options

automation/eclair_analysis/xen_x86_config

@@ -0,0 +1,152 @@
+# File provided in
+# Re: Xen MISRA C: Source files in scope and out of scope
+# from:	Stefano Stabellini <stefano.stabellini@amd.com> 
+# date:	6 giu 2023, 02:53
+
+#
+# Automatically generated file; DO NOT EDIT.
+# Xen/x86 4.18-unstable Configuration
+#
+CONFIG_CC_IS_GCC=y
+CONFIG_GCC_VERSION=90400
+CONFIG_CLANG_VERSION=0
+CONFIG_LD_IS_GNU=y
+CONFIG_CC_HAS_VISIBILITY_ATTRIBUTE=y
+CONFIG_X86_64=y
+CONFIG_X86=y
+CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
+CONFIG_CC_HAS_INDIRECT_THUNK=y
+CONFIG_HAS_AS_CET_SS=y
+CONFIG_HAS_CC_CET_IBT=y
+
+CONFIG_REQUIRE_NX=n
+
+#
+# Architecture Features
+#
+CONFIG_64BIT=y
+CONFIG_NR_CPUS=16
+CONFIG_NR_NUMA_NODES=2
+# CONFIG_PV is not set
+CONFIG_HVM=y
+# CONFIG_XEN_SHSTK is not set
+# CONFIG_XEN_IBT is not set
+# CONFIG_SHADOW_PAGING is not set
+# CONFIG_BIGMEM is not set
+# CONFIG_HVM_FEP is not set
+# CONFIG_TBOOT is not set
+CONFIG_XEN_ALIGN_DEFAULT=y
+# CONFIG_XEN_ALIGN_2M is not set
+CONFIG_X2APIC_PHYSICAL=y
+# CONFIG_XEN_GUEST is not set
+# CONFIG_HYPERV_GUEST is not set
+# CONFIG_MEM_PAGING is not set
+# CONFIG_MEM_SHARING is not set
+# end of Architecture Features
+
+#
+# Common Features
+#
+CONFIG_COMPAT=y
+CONFIG_CORE_PARKING=y
+CONFIG_GRANT_TABLE=y
+CONFIG_ALTERNATIVE_CALL=y
+CONFIG_ARCH_MAP_DOMAIN_PAGE=y
+CONFIG_GENERIC_BUG_FRAME=y
+CONFIG_HAS_ALTERNATIVE=y
+CONFIG_HAS_COMPAT=y
+CONFIG_HAS_EX_TABLE=y
+CONFIG_HAS_FAST_MULTIPLY=y
+CONFIG_HAS_IOPORTS=y
+CONFIG_HAS_KEXEC=y
+CONFIG_HAS_PDX=y
+CONFIG_HAS_SCHED_GRANULARITY=y
+CONFIG_HAS_UBSAN=y
+CONFIG_MEM_ACCESS_ALWAYS_ON=y
+CONFIG_MEM_ACCESS=y
+CONFIG_NEEDS_LIBELF=y
+CONFIG_NUMA=y
+
+#
+# Speculative hardening
+#
+CONFIG_INDIRECT_THUNK=y
+CONFIG_SPECULATIVE_HARDEN_ARRAY=y
+CONFIG_SPECULATIVE_HARDEN_BRANCH=y
+# end of Speculative hardening
+
+# CONFIG_HYPFS is not set
+CONFIG_IOREQ_SERVER=y
+# CONFIG_KEXEC is not set
+# CONFIG_EFI_SET_VIRTUAL_ADDRESS_MAP is not set
+# CONFIG_XENOPROF is not set
+# CONFIG_XSM is not set
+# CONFIG_ARGO is not set
+
+#
+# Schedulers
+#
+# CONFIG_SCHED_CREDIT is not set
+CONFIG_SCHED_CREDIT2=y
+# CONFIG_SCHED_RTDS is not set
+# CONFIG_SCHED_ARINC653 is not set
+CONFIG_SCHED_NULL=y
+CONFIG_SCHED_CREDIT2_DEFAULT=y
+# CONFIG_SCHED_NULL_DEFAULT is not set
+CONFIG_SCHED_DEFAULT="credit2"
+# end of Schedulers
+
+# CONFIG_LIVEPATCH is not set
+# CONFIG_ENFORCE_UNIQUE_SYMBOLS is not set
+# CONFIG_SUPPRESS_DUPLICATE_SYMBOL_WARNINGS is not set
+CONFIG_CMDLINE=""
+CONFIG_DOM0_MEM=""
+# CONFIG_TRACEBUFFER is not set
+# end of Common Features
+
+#
+# Device Drivers
+#
+CONFIG_ACPI=y
+CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
+CONFIG_ACPI_NUMA=y
+CONFIG_HAS_NS16550=y
+CONFIG_HAS_EHCI=y
+CONFIG_SERIAL_TX_BUFSIZE=16384
+# CONFIG_XHCI is not set
+CONFIG_HAS_CPUFREQ=y
+CONFIG_HAS_PASSTHROUGH=y
+CONFIG_AMD_IOMMU=y
+# CONFIG_INTEL_IOMMU is not set
+# CONFIG_IOMMU_QUARANTINE_NONE is not set
+CONFIG_IOMMU_QUARANTINE_BASIC=y
+# CONFIG_IOMMU_QUARANTINE_SCRATCH_PAGE is not set
+CONFIG_HAS_PCI=y
+CONFIG_HAS_PCI_MSI=y
+CONFIG_VIDEO=y
+CONFIG_VGA=y
+CONFIG_HAS_VPCI=y
+# end of Device Drivers
+
+CONFIG_EXPERT=y
+CONFIG_UNSUPPORTED=y
+CONFIG_ARCH_SUPPORTS_INT128=y
+
+#
+# Debugging Options
+#
+CONFIG_DEBUG=y
+# CONFIG_CRASH_DEBUG is not set
+CONFIG_GDBSX=y
+CONFIG_FRAME_POINTER=y
+# CONFIG_COVERAGE is not set
+# CONFIG_DEBUG_LOCK_PROFILE is not set
+CONFIG_DEBUG_LOCKS=y
+# CONFIG_PERF_COUNTERS is not set
+CONFIG_VERBOSE_DEBUG=y
+CONFIG_SCRUB_DEBUG=y
+# CONFIG_UBSAN is not set
+# CONFIG_DEBUG_TRACE is not set
+CONFIG_XMEM_POOL_POISON=y
+CONFIG_DEBUG_INFO=y
+# end of Debugging Options