From: Taras Kondratiuk Date: Fri, 8 Nov 2013 18:29:29 +0000 (+0000) Subject: ARM: kprobes-test: Workaround GAS .align bug X-Git-Tag: v3.15-rc1~31^2^2^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=41b5368f31f86a1c2be2bb16a1cf18d23f1223d4;p=pandora-kernel.git ARM: kprobes-test: Workaround GAS .align bug By default if no fill symbol is given to .align directive in a code section it fills gap with NOPs. If previous fragment is not instruction-aligned, additional pre-alignment is done by zero bytes before NOPs. These zero bytes are marked as data by special symbol $d in symbol table. Unfortunately GAS assumes that there is only code in the code section so it "puts back" code symbol $a at the end of this pre-alignment. So if there is some data after alignment it will be interpreted as code and will be swapped back to LE for BE8 system during a final linking. If explicit fill value is given to .align, the NOP-padding code is skipped and symbol table does not get messed-up. So the workaround for this issue: Use explicit fill value if data should be aligned in the code section. Acked-by: Ben Dooks Acked-by: Jon Medhurst Signed-off-by: Taras Kondratiuk --- Reading git-diff-tree failed