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x86: Add "make tinyconfig" to configure the tiniest possible kernel

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Since commit 5d2acfc7b9 ("kconfig: make
allnoconfig disable options behind EMBEDDED and EXPERT") in 3.15-rc1,
"make allnoconfig" disables every possible config option.

However, a few configuration options (CC_OPTIMIZE_FOR_SIZE,
OPTIMIZE_INLINING) produce a smaller kernel when turned on, and a few
choices exist (compression, highmem, allocator) for which a non-default
option produces a smaller kernel.

Add a "tinyconfig" option, which starts from allnoconfig and then sets
these options to configure the tiniest possible kernel.  This provides a
better baseline for embedded systems or efforts to reduce kernel size.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Josh Triplett
2014-08-08 16:25:47 -07:00
parent 3aaefce103
commit 0da1d4a0b9
3 changed files with 10 additions and 0 deletions
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arch/x86/configs/tiny.config
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CONFIG_NOHIGHMEM=y