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authorAlbert ARIBAUD <albert.u.boot@aribaud.net>2015-11-25 16:56:33 (GMT)
committerTom Rini <trini@konsulko.com>2016-01-14 02:05:18 (GMT)
commitadc421e4cee8275cd99367b3b455ffbb5ead3990 (patch)
tree08a51a4c9a9a6d5806d9f2c329065de3a5a7586e /fs/ubifs/Makefile
parentecc306639e83c9019a5093b77a48685ea40eedc2 (diff)
downloadu-boot-fsl-qoriq-adc421e4cee8275cd99367b3b455ffbb5ead3990.tar.xz
arm: move gd handling outside of C code
As of gcc 5.2.1 for Thumb-1, it is not possible any more to assign gd from C code, as gd is mapped to r9, and r9 may now be saved in the prolog sequence, and restored in the epilog sequence, of any C functions. Therefore arch_setup_gd(), which is supposed to set r9, may actually have no effect, causing U-Boot to use a bad address to access GD. Fix this by never calling arch_setup_gd() for ARM, and instead setting r9 in arch/arm/lib/crt0.S, to the value returned by board_init_f_alloc_reserve(). Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Reviewed-by: Simon Glass <sjg@chromium.org>
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