Commit b505caa5b83e42130772d9b3804c459d09ad6e10
Committed by
Peng Fan
1 parent
95b2ee328e
Exists in
smarc-n7.1.2_2.0.0-ga
and in
4 other branches
ARM: fixed relocation using proper alignment
Using u-boot-2017.05 on i.MX6UL we ran into following problem: Initially U-Boot could be started normally. If we added one random command in configuration, the newly generated image hung at startup (last output was DRAM: 256 MiB). We tracked this down to a data abort within relocation (relocated_code). relocated_code in arch/arm/lib/relocate.S copies 8 bytes per loop iteration until the source pointer is equal to __image_copy_end. In a good case __image_copy_end was aligned to 8 bytes, so the loop stopped as suggested, but in an errornous case __image_copy_end was not aligned to 8 bytes, so the loop ran out of bounds and caused a data abort exception. This patches solves the issue by aligning __image_copy_end to 8 byte using the linker script related to arm. From Community: http://patchwork.ozlabs.org/patch/760592/ Signed-off-by: Peng Fan <peng.fan@nxp.com>
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