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config: extend small_flash feature

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Extend the small_flash feature to disable swap, core dumps, and
kernel debug info, and change the squashfs block size to 1024KiB.

Also change squashfs fragment cache to 2 for small_flash to ease memory
usage.

Signed-off-by: Alex Maclean <monkeh@monkeh.net>
This commit is contained in:
Alex Maclean 2018-07-09 18:09:05 +01:00 committed by Mathias Kresin
parent cf7154db07
commit 11d6547455
5 changed files with 12 additions and 6 deletions
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1
config/Config-images.in
View File

@ -149,6 +149,7 @@ menu "Target Images"
int "Block size (in KiB)"
depends on TARGET_ROOTFS_SQUASHFS
default 64 if LOW_MEMORY_FOOTPRINT
default 1024 if (SMALL_FLASH && !LOW_MEMORY_FOOTPRINT)
default 256
menuconfig TARGET_ROOTFS_UBIFS

11
config/Config-kernel.in
View File

@ -31,7 +31,7 @@ config KERNEL_CRASHLOG
config KERNEL_SWAP
bool "Support for paging of anonymous memory (swap)"
default y
default y if !SMALL_FLASH
config KERNEL_DEBUG_FS
bool "Compile the kernel with debug filesystem enabled"
@ -133,7 +133,7 @@ config KERNEL_DEBUG_KERNEL
config KERNEL_DEBUG_INFO
bool "Compile the kernel with debug information"
default y
default y if !SMALL_FLASH
select KERNEL_DEBUG_KERNEL
help
This will compile your kernel and modules with debug information.
@ -226,7 +226,7 @@ config KERNEL_COREDUMP
config KERNEL_ELF_CORE
bool "Enable process core dump support"
select KERNEL_COREDUMP
default y
default y if !SMALL_FLASH
config KERNEL_PROVE_LOCKING
bool "Enable kernel lock checking"
@ -807,6 +807,11 @@ config KERNEL_DEVKMEM
/dev/kmem device is rarely used, but can be used for certain
kind of kernel debugging operations.
config KERNEL_SQUASHFS_FRAGMENT_CACHE_SIZE
int "Number of squashfs fragments cached"
default 2 if (SMALL_FLASH && !LOW_MEMORY_FOOTPRINT)
default 3
#
# compile optimiziation setting
#

2
target/linux/generic/config-3.18
View File

@ -3816,7 +3816,7 @@ CONFIG_SQUASHFS=y
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
# CONFIG_SQUASHFS_DECOMP_SINGLE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_EMBEDDED=y
# CONFIG_SQUASHFS_FILE_CACHE is not set
CONFIG_SQUASHFS_FILE_DIRECT=y
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3

2
target/linux/generic/config-4.14
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@ -4683,7 +4683,7 @@ CONFIG_SQUASHFS=y
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
# CONFIG_SQUASHFS_DECOMP_SINGLE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_EMBEDDED=y
# CONFIG_SQUASHFS_FILE_CACHE is not set
CONFIG_SQUASHFS_FILE_DIRECT=y
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3

2
target/linux/generic/config-4.9
View File

@ -4401,7 +4401,7 @@ CONFIG_SQUASHFS=y
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
# CONFIG_SQUASHFS_DECOMP_SINGLE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_EMBEDDED=y
# CONFIG_SQUASHFS_FILE_CACHE is not set
CONFIG_SQUASHFS_FILE_DIRECT=y
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3