linux4.10: enable CONFIG_COMPAT for arm64.

This allows running 32-bit code on aarch64.
(Will be rebuilt on next bump.)

srcpkgs/linux4.10/files/arm64-dotconfig

@@ -7,11 +7,11 @@ CONFIG_64BIT=y
 CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
 CONFIG_MMU=y
 CONFIG_DEBUG_RODATA=y
-CONFIG_ARM64_PAGE_SHIFT=16
-CONFIG_ARM64_CONT_SHIFT=5
-CONFIG_ARCH_MMAP_RND_BITS_MIN=14
-CONFIG_ARCH_MMAP_RND_BITS_MAX=29
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=7
+CONFIG_ARM64_PAGE_SHIFT=12
+CONFIG_ARM64_CONT_SHIFT=4
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_BITS_MAX=33
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
 CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
 CONFIG_STACKTRACE_SUPPORT=y
 CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
@@ -33,7 +33,7 @@ CONFIG_SWIOTLB=y
 CONFIG_IOMMU_HELPER=y
 CONFIG_KERNEL_MODE_NEON=y
 CONFIG_FIX_EARLYCON_MEM=y
-CONFIG_PGTABLE_LEVELS=3
+CONFIG_PGTABLE_LEVELS=4
 CONFIG_ARCH_SUPPORTS_UPROBES=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 CONFIG_IRQ_WORK=y
@@ -173,9 +173,11 @@ CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_SYSCTL=y
 CONFIG_ANON_INODES=y
+CONFIG_HAVE_UID16=y
 CONFIG_SYSCTL_EXCEPTION_TRACE=y
 CONFIG_BPF=y
 CONFIG_EXPERT=y
+CONFIG_UID16=y
 CONFIG_MULTIUSER=y
 # CONFIG_SGETMASK_SYSCALL is not set
 CONFIG_SYSFS_SYSCALL=y
@@ -263,10 +265,14 @@ CONFIG_HAVE_ARCH_HUGE_VMAP=y
 CONFIG_MODULES_USE_ELF_RELA=y
 CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
 CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
-CONFIG_ARCH_MMAP_RND_BITS=14
+CONFIG_ARCH_MMAP_RND_BITS=18
+CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11
 # CONFIG_HAVE_ARCH_HASH is not set
 # CONFIG_ISA_BUS_API is not set
 CONFIG_CLONE_BACKWARDS=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_COMPAT_OLD_SIGACTION=y
 # CONFIG_CPU_NO_EFFICIENT_FFS is not set
 # CONFIG_HAVE_ARCH_VMAP_STACK is not set
 
@@ -287,8 +293,6 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_MODULE_SRCVERSION_ALL is not set
 # CONFIG_MODULE_SIG is not set
 # CONFIG_MODULE_COMPRESS is not set
-# CONFIG_MODULE_COMPRESS_GZIP is not set
-# CONFIG_MODULE_COMPRESS_XZ is not set
 CONFIG_MODULES_TREE_LOOKUP=y
 CONFIG_BLOCK=y
 CONFIG_BLK_DEV_BSG=y
@@ -325,6 +329,7 @@ CONFIG_KARMA_PARTITION=y
 CONFIG_EFI_PARTITION=y
 # CONFIG_SYSV68_PARTITION is not set
 # CONFIG_CMDLINE_PARTITION is not set
+CONFIG_BLOCK_COMPAT=y
 CONFIG_BLK_MQ_PCI=y
 
 #
@@ -451,14 +456,16 @@ CONFIG_ARM64_ERRATUM_824069=y
 CONFIG_ARM64_ERRATUM_819472=y
 CONFIG_ARM64_ERRATUM_832075=y
 CONFIG_ARM64_ERRATUM_834220=y
+CONFIG_ARM64_ERRATUM_845719=y
 CONFIG_ARM64_ERRATUM_843419=y
 CONFIG_CAVIUM_ERRATUM_22375=y
 CONFIG_CAVIUM_ERRATUM_23154=y
 CONFIG_CAVIUM_ERRATUM_27456=y
 CONFIG_QCOM_QDF2400_ERRATUM_0065=y
-# CONFIG_ARM64_4K_PAGES is not set
+CONFIG_ARM64_4K_PAGES=y
 # CONFIG_ARM64_16K_PAGES is not set
-CONFIG_ARM64_64K_PAGES=y
+# CONFIG_ARM64_64K_PAGES is not set
+# CONFIG_ARM64_VA_BITS_39 is not set
 # CONFIG_ARM64_VA_BITS_42 is not set
 CONFIG_ARM64_VA_BITS_48=y
 CONFIG_ARM64_VA_BITS=48
@@ -485,6 +492,7 @@ CONFIG_ARCH_SELECT_MEMORY_MODEL=y
 CONFIG_HAVE_ARCH_PFN_VALID=y
 CONFIG_HW_PERF_EVENTS=y
 CONFIG_SYS_SUPPORTS_HUGETLBFS=y
+CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
 CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
 CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_SPARSEMEM_MANUAL=y
@@ -530,6 +538,7 @@ CONFIG_PARAVIRT_TIME_ACCOUNTING=y
 CONFIG_KEXEC=y
 # CONFIG_XEN is not set
 CONFIG_FORCE_MAX_ZONEORDER=11
+# CONFIG_ARMV8_DEPRECATED is not set
 CONFIG_ARM64_SW_TTBR0_PAN=y
 
 #
@@ -561,13 +570,15 @@ CONFIG_DMI=y
 # Userspace binary formats
 #
 CONFIG_BINFMT_ELF=y
+CONFIG_COMPAT_BINFMT_ELF=y
 CONFIG_ELFCORE=y
 CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
 CONFIG_BINFMT_SCRIPT=y
 # CONFIG_HAVE_AOUT is not set
 CONFIG_BINFMT_MISC=y
 CONFIG_COREDUMP=y
-# CONFIG_COMPAT is not set
+CONFIG_COMPAT=y
+CONFIG_SYSVIPC_COMPAT=y
 
 #
 # Power management options
@@ -649,6 +660,7 @@ CONFIG_ARM_TEGRA20_CPUFREQ=y
 CONFIG_ARM_TEGRA124_CPUFREQ=y
 CONFIG_ACPI_CPPC_CPUFREQ=y
 CONFIG_NET=y
+CONFIG_COMPAT_NETLINK_MESSAGES=y
 CONFIG_NET_INGRESS=y
 CONFIG_NET_EGRESS=y
 
@@ -6701,6 +6713,7 @@ CONFIG_NVMEM=m
 CONFIG_MTK_EFUSE=m
 CONFIG_QCOM_QFPROM=m
 CONFIG_NVMEM_SUNXI_SID=m
+# CONFIG_MESON_EFUSE is not set
 # CONFIG_STM is not set
 # CONFIG_INTEL_TH is not set
 
@@ -6740,6 +6753,7 @@ CONFIG_EFI_BOOTLOADER_CONTROL=y
 # CONFIG_EFI_TEST is not set
 CONFIG_UEFI_CPER=y
 # CONFIG_EFI_DEV_PATH_PARSER is not set
+CONFIG_MESON_SM=y
 
 #
 # Tegra firmware driver
@@ -7113,6 +7127,7 @@ CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
 CONFIG_KVM_VFIO=y
 CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL=y
 CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
+CONFIG_KVM_COMPAT=y
 CONFIG_VIRTUALIZATION=y
 CONFIG_KVM=y
 CONFIG_KVM_ARM_HOST=y
@@ -7576,6 +7591,7 @@ CONFIG_LIBCRC32C=y
 CONFIG_CRC8=m
 CONFIG_AUDIT_GENERIC=y
 CONFIG_AUDIT_ARCH_COMPAT_GENERIC=y
+CONFIG_AUDIT_COMPAT_GENERIC=y
 # CONFIG_RANDOM32_SELFTEST is not set
 CONFIG_842_COMPRESS=m
 CONFIG_842_DECOMPRESS=m