Denys Vlasenko 5b8c89d1f2 build system: make CONFIG_FEATURE_USE_BSS_TAIL less funky ...

CONFIG_FEATURE_USE_BSS_TAIL code was aliasing bb_common_bufsiz1 to _end.
This is unreliable: _end may be not sufficiently aligned.

Change code to simply enlarge COMMON_BUFSIZE when we detect that _end
has significant amount of space to the end of page.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2016-06-29 15:00:52 +02:00

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