uml: drop 32Bit host build support

This step drops support host build systems other than x86/64 to allow
two Kernel configuration in parallel. With this commit the setup follow
the config style of all other targets.

Signed-off-by: Paul Spooren <mail@aparcar.org>

target/linux/uml/Makefile

@@ -1,20 +1,14 @@
 # SPDX-License-Identifier: GPL-2.0-only
 #
-# Copyright (C) 2006-2011 OpenWrt.org
+# Copyright (C) 2006-2021 OpenWrt.org
 
 include $(TOPDIR)/rules.mk
 
 # UML only makes sense on linux
 ifeq ($(HOST_OS),Linux)
+  ifeq ($(HOST_ARCH),x86_64)
 
-ARCH:=$(shell uname -m | sed \
+ARCH:=x86_64
-	-e 's/i[3-9]86/i386/' \
-	-e 's/mipsel/mips/' \
-	-e 's/mipseb/mips/' \
-	-e 's/powerpc/ppc/' \
-	-e 's/sh[234]/sh/' \
-	-e 's/armeb/arm/' \
-)
 BOARD:=uml
 BOARDNAME:=User Mode Linux
 FEATURES:=squashfs ext4 audio source-only
@@ -23,10 +17,9 @@ KERNEL_PATCHVER:=5.4
 
 include $(INCLUDE_DIR)/target.mk
 
-LINUX_TARGET_CONFIG:=$(CURDIR)/config/$(ARCH)
-
 DEFAULT_PACKAGES += wpad-basic-wolfssl kmod-mac80211-hwsim mkf2fs e2fsprogs
 
   endif
+endif
 
 $(eval $(call BuildTarget))

target/linux/uml/config/i386

@@ -1,142 +0,0 @@
-# CONFIG_3_LEVEL_PGTABLES is not set
-# CONFIG_64BIT is not set
-CONFIG_ARCH_DEFCONFIG="arch/um/configs/i386_defconfig"
-CONFIG_ARCH_HAS_KCOV=y
-CONFIG_ARCH_NO_PREEMPT=y
-CONFIG_BLK_DEV_COW_COMMON=y
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_UBD=y
-CONFIG_BLK_DEV_UBD_SYNC=y
-CONFIG_BLK_MQ_VIRTIO=y
-CONFIG_CC_HAS_KASAN_GENERIC=y
-CONFIG_CON_CHAN="xterm"
-CONFIG_CON_ZERO_CHAN="fd:0,fd:1"
-CONFIG_CPU_SUP_AMD=y
-CONFIG_CPU_SUP_CENTAUR=y
-CONFIG_CPU_SUP_HYGON=y
-CONFIG_CPU_SUP_INTEL=y
-CONFIG_CPU_SUP_ZHAOXIN=y
-CONFIG_CRC16=y
-CONFIG_CRYPTO_CRC32=y
-CONFIG_CRYPTO_CRC32C=y
-CONFIG_CRYPTO_HASH=y
-CONFIG_CRYPTO_HASH2=y
-CONFIG_CRYPTO_RNG2=y
-CONFIG_CRYPTO_SHA1=y
-CONFIG_DEBUG_MEMORY_INIT=y
-CONFIG_DECOMPRESS_BZIP2=y
-CONFIG_DECOMPRESS_GZIP=y
-CONFIG_DNOTIFY=y
-# CONFIG_EARLY_PRINTK is not set
-CONFIG_EXT4_FS=y
-CONFIG_F2FS_FS=y
-CONFIG_FAILOVER=y
-CONFIG_FS_IOMAP=y
-CONFIG_FS_MBCACHE=y
-CONFIG_FW_LOADER_PAGED_BUF=y
-CONFIG_GENERIC_CLOCKEVENTS=y
-# CONFIG_GENERIC_CPU is not set
-CONFIG_GENERIC_CPU_DEVICES=y
-CONFIG_GENERIC_FIND_FIRST_BIT=y
-CONFIG_GENERIC_IRQ_SHOW=y
-CONFIG_HAVE_ARCH_AUDITSYSCALL=y
-CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
-CONFIG_HAVE_ASM_MODVERSIONS=y
-CONFIG_HAVE_COPY_THREAD_TLS=y
-CONFIG_HAVE_DEBUG_BUGVERBOSE=y
-CONFIG_HAVE_DEBUG_KMEMLEAK=y
-CONFIG_HAVE_FUTEX_CMPXCHG=y
-CONFIG_HAVE_NET_DSA=y
-CONFIG_HAVE_UID16=y
-CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
-CONFIG_HOSTFS=y
-CONFIG_HVC_DRIVER=y
-CONFIG_HZ_PERIODIC=y
-CONFIG_INITRAMFS_SOURCE=""
-CONFIG_INIT_ENV_ARG_LIMIT=128
-CONFIG_IRQ_WORK=y
-CONFIG_ISO9660_FS=y
-CONFIG_JBD2=y
-# CONFIG_JFFS2_FS is not set
-CONFIG_KALLSYMS=y
-CONFIG_KERNEL_STACK_ORDER=2
-CONFIG_LD_SCRIPT_STATIC=y
-CONFIG_LOCK_DEBUGGING_SUPPORT=y
-# CONFIG_MATOM is not set
-CONFIG_MCONSOLE=y
-# CONFIG_MCORE2 is not set
-CONFIG_MEMFD_CREATE=y
-CONFIG_MIGRATION=y
-CONFIG_MK8=y
-# CONFIG_MMAPPER is not set
-CONFIG_MODULES_USE_ELF_RELA=y
-# CONFIG_MPSC is not set
-CONFIG_NAMESPACES=y
-CONFIG_NEED_PER_CPU_KM=y
-CONFIG_NET_FAILOVER=y
-# CONFIG_NET_NS is not set
-CONFIG_NLS=y
-CONFIG_NO_DMA=y
-CONFIG_NO_IOMEM=y
-CONFIG_NR_CPUS=1
-CONFIG_NULL_CHAN=y
-# CONFIG_OF is not set
-CONFIG_PGTABLE_LEVELS=3
-CONFIG_PHYS_ADDR_T_64BIT=y
-CONFIG_PORT_CHAN=y
-CONFIG_POSIX_MQUEUE=y
-CONFIG_POSIX_MQUEUE_SYSCTL=y
-# CONFIG_PROCESSOR_SELECT is not set
-CONFIG_PROC_PAGE_MONITOR=y
-CONFIG_PTY_CHAN=y
-CONFIG_RD_BZIP2=y
-CONFIG_RD_GZIP=y
-CONFIG_RELAY=y
-CONFIG_SOFT_WATCHDOG=m
-CONFIG_SRCU=y
-CONFIG_SSL=y
-CONFIG_SSL_CHAN="pty"
-CONFIG_STACKTRACE=y
-CONFIG_STATIC_LINK=y
-CONFIG_STDERR_CONSOLE=y
-CONFIG_TICK_CPU_ACCOUNTING=y
-CONFIG_TINY_SRCU=y
-CONFIG_TTY_CHAN=y
-CONFIG_UML=y
-CONFIG_UML_NET=y
-CONFIG_UML_NET_DAEMON=y
-CONFIG_UML_NET_DETERMINISTIC_MAC=y
-CONFIG_UML_NET_ETHERTAP=y
-CONFIG_UML_NET_MCAST=y
-# CONFIG_UML_NET_PCAP is not set
-CONFIG_UML_NET_SLIP=y
-CONFIG_UML_NET_SLIRP=y
-CONFIG_UML_NET_TUNTAP=y
-# CONFIG_UML_NET_VDE is not set
-CONFIG_UML_NET_VECTOR=y
-CONFIG_UML_RANDOM=y
-# CONFIG_UML_SOUND is not set
-CONFIG_UML_TIME_TRAVEL_SUPPORT=y
-CONFIG_UML_WATCHDOG=y
-CONFIG_UML_X86=y
-# CONFIG_USER_NS is not set
-CONFIG_VIRTIO=y
-CONFIG_VIRTIO_BLK=y
-CONFIG_VIRTIO_CONSOLE=y
-CONFIG_VIRTIO_NET=y
-CONFIG_VIRTIO_UML=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_WATCHDOG_CORE=y
-CONFIG_X86_32=y
-# CONFIG_X86_64 is not set
-CONFIG_X86_CMOV=y
-CONFIG_X86_CMPXCHG64=y
-CONFIG_X86_GENERIC=y
-CONFIG_X86_INTEL_USERCOPY=y
-CONFIG_X86_INTERNODE_CACHE_SHIFT=6
-CONFIG_X86_L1_CACHE_SHIFT=6
-CONFIG_X86_MINIMUM_CPU_FAMILY=5
-CONFIG_X86_TSC=y
-CONFIG_X86_USE_PPRO_CHECKSUM=y
-CONFIG_XTERM_CHAN=y
-CONFIG_ZLIB_INFLATE=y