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Commit e40f04d0 authored by Ramkumar Ramachandra's avatar Ramkumar Ramachandra Committed by Richard Weinberger
Browse files

arch/um: make it work with defconfig and x86_64 



arch/um/defconfig only lists one default configuration, and that applies
only to the i386 architecture.  Replace it with two minimal
configuration files generated using `make savedefconfig`:

  i386_defconfig and x86_64_defconfig

The build scripts now require two updates:

1. um's Kconfig (arch/x86/um/Kconfig) should specify an ARCH_DEFCONFIG
   section explicitly pointing to these scripts if the required
   variables are set.  Take care to remove the DEFCONFIG_LIST section
   defined in the included file arch/um/Kconfig.common.

2. um's Makefile (arch/um/Makefile) should set KBUILD_DEFCONFIG properly
   for the top-level Makefile to pick up.  Copy the logic in
   arch/x86/Makefile to properly pick the defconfig file depending on
   the actual architecture; except we're working with $SUBARCH here,
   instead of $ARCH.

Now, you can do:

  $ ARCH=um make defconfig
  $ ARCH=um make

and successfully build User-Mode Linux on an x86_64 box in default
configuration.

Cc: Richard Weinberger <richard@nod.at>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: default avatarRamkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent e96d1c36

arch/um/Kconfig.common

+0 −5
Original line number Diff line number Diff line 
config DEFCONFIG_LIST

	string

	option defconfig_list

	default "arch/$ARCH/defconfig"



config UML

	bool

	default y

arch/um/Makefile

+11 −0
Original line number Diff line number Diff line
@@ -6,6 +6,17 @@ 
# Licensed under the GPL

#



# select defconfig based on actual architecture

ifeq ($(SUBARCH),x86)

  ifeq ($(shell uname -m),x86_64)

        KBUILD_DEFCONFIG := x86_64_defconfig

  else

        KBUILD_DEFCONFIG := i386_defconfig

  endif

else

        KBUILD_DEFCONFIG := $(SUBARCH)_defconfig

endif



ARCH_DIR := arch/um

OS := $(shell uname -s)

# We require bash because the vmlinux link and loader script cpp use bash

arch/um/configs/i386_defconfig

0 → 100644
+76 −0
Original line number Diff line number Diff line 
CONFIG_3_LEVEL_PGTABLES=y

# CONFIG_COMPACTION is not set

CONFIG_BINFMT_MISC=m

CONFIG_HOSTFS=y

CONFIG_MAGIC_SYSRQ=y

CONFIG_KERNEL_STACK_ORDER=1

CONFIG_SYSVIPC=y

CONFIG_POSIX_MQUEUE=y

CONFIG_NO_HZ=y

CONFIG_HIGH_RES_TIMERS=y

CONFIG_BSD_PROCESS_ACCT=y

CONFIG_IKCONFIG=y

CONFIG_IKCONFIG_PROC=y

CONFIG_LOG_BUF_SHIFT=14

CONFIG_CGROUPS=y

CONFIG_CGROUP_FREEZER=y

CONFIG_CGROUP_DEVICE=y

CONFIG_CPUSETS=y

CONFIG_CGROUP_CPUACCT=y

CONFIG_RESOURCE_COUNTERS=y

CONFIG_CGROUP_SCHED=y

CONFIG_BLK_CGROUP=y

# CONFIG_PID_NS is not set

CONFIG_SYSFS_DEPRECATED=y

CONFIG_CC_OPTIMIZE_FOR_SIZE=y

CONFIG_SLAB=y

CONFIG_MODULES=y

CONFIG_MODULE_UNLOAD=y

# CONFIG_BLK_DEV_BSG is not set

CONFIG_IOSCHED_CFQ=m

CONFIG_SSL=y

CONFIG_NULL_CHAN=y

CONFIG_PORT_CHAN=y

CONFIG_PTY_CHAN=y

CONFIG_TTY_CHAN=y

CONFIG_XTERM_CHAN=y

CONFIG_CON_CHAN="pts"

CONFIG_SSL_CHAN="pts"

CONFIG_UML_SOUND=m

CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"

CONFIG_DEVTMPFS=y

CONFIG_DEVTMPFS_MOUNT=y

CONFIG_BLK_DEV_UBD=y

CONFIG_BLK_DEV_LOOP=m

CONFIG_BLK_DEV_NBD=m

CONFIG_DUMMY=m

CONFIG_TUN=m

CONFIG_PPP=m

CONFIG_SLIP=m

CONFIG_LEGACY_PTY_COUNT=32

# CONFIG_HW_RANDOM is not set

CONFIG_UML_RANDOM=y

CONFIG_NET=y

CONFIG_PACKET=y

CONFIG_UNIX=y

CONFIG_INET=y

# CONFIG_INET_LRO is not set

# CONFIG_IPV6 is not set

CONFIG_UML_NET=y

CONFIG_UML_NET_ETHERTAP=y

CONFIG_UML_NET_TUNTAP=y

CONFIG_UML_NET_SLIP=y

CONFIG_UML_NET_DAEMON=y

CONFIG_UML_NET_MCAST=y

CONFIG_UML_NET_SLIRP=y

CONFIG_EXT4_FS=y

CONFIG_REISERFS_FS=y

CONFIG_QUOTA=y

CONFIG_AUTOFS4_FS=m

CONFIG_ISO9660_FS=m

CONFIG_JOLIET=y

CONFIG_PROC_KCORE=y

CONFIG_TMPFS=y

CONFIG_NLS=y

CONFIG_DEBUG_INFO=y

CONFIG_DEBUG_KERNEL=y

arch/um/configs/x86_64_defconfig

0 → 100644
+75 −0
Original line number Diff line number Diff line 
# CONFIG_COMPACTION is not set

CONFIG_BINFMT_MISC=m

CONFIG_HOSTFS=y

CONFIG_MAGIC_SYSRQ=y

CONFIG_SYSVIPC=y

CONFIG_POSIX_MQUEUE=y

CONFIG_NO_HZ=y

CONFIG_HIGH_RES_TIMERS=y

CONFIG_BSD_PROCESS_ACCT=y

CONFIG_IKCONFIG=y

CONFIG_IKCONFIG_PROC=y

CONFIG_LOG_BUF_SHIFT=14

CONFIG_CGROUPS=y

CONFIG_CGROUP_FREEZER=y

CONFIG_CGROUP_DEVICE=y

CONFIG_CPUSETS=y

CONFIG_CGROUP_CPUACCT=y

CONFIG_RESOURCE_COUNTERS=y

CONFIG_CGROUP_SCHED=y

CONFIG_BLK_CGROUP=y

# CONFIG_PID_NS is not set

CONFIG_SYSFS_DEPRECATED=y

CONFIG_CC_OPTIMIZE_FOR_SIZE=y

CONFIG_SLAB=y

CONFIG_MODULES=y

CONFIG_MODULE_UNLOAD=y

# CONFIG_BLK_DEV_BSG is not set

CONFIG_IOSCHED_CFQ=m

CONFIG_SSL=y

CONFIG_NULL_CHAN=y

CONFIG_PORT_CHAN=y

CONFIG_PTY_CHAN=y

CONFIG_TTY_CHAN=y

CONFIG_XTERM_CHAN=y

CONFIG_CON_CHAN="pts"

CONFIG_SSL_CHAN="pts"

CONFIG_UML_SOUND=m

CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"

CONFIG_DEVTMPFS=y

CONFIG_DEVTMPFS_MOUNT=y

CONFIG_BLK_DEV_UBD=y

CONFIG_BLK_DEV_LOOP=m

CONFIG_BLK_DEV_NBD=m

CONFIG_DUMMY=m

CONFIG_TUN=m

CONFIG_PPP=m

CONFIG_SLIP=m

CONFIG_LEGACY_PTY_COUNT=32

# CONFIG_HW_RANDOM is not set

CONFIG_UML_RANDOM=y

CONFIG_NET=y

CONFIG_PACKET=y

CONFIG_UNIX=y

CONFIG_INET=y

# CONFIG_INET_LRO is not set

# CONFIG_IPV6 is not set

CONFIG_UML_NET=y

CONFIG_UML_NET_ETHERTAP=y

CONFIG_UML_NET_TUNTAP=y

CONFIG_UML_NET_SLIP=y

CONFIG_UML_NET_DAEMON=y

CONFIG_UML_NET_MCAST=y

CONFIG_UML_NET_SLIRP=y

CONFIG_EXT4_FS=y

CONFIG_REISERFS_FS=y

CONFIG_QUOTA=y

CONFIG_AUTOFS4_FS=m

CONFIG_ISO9660_FS=m

CONFIG_JOLIET=y

CONFIG_PROC_KCORE=y

CONFIG_TMPFS=y

CONFIG_NLS=y

CONFIG_DEBUG_INFO=y

CONFIG_FRAME_WARN=1024

CONFIG_DEBUG_KERNEL=y

arch/um/defconfig

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+0 −899

File deleted.

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