ARM and PowerPC Shared Linkcmds Alignment Issue

Sebastian Huber sebastian.huber at
Thu Feb 8 12:50:44 UTC 2018

On 31/01/18 21:10, Joel Sherrill wrote:
> Hi
> I am debugging a paravirtualized BSP. On the ARM and PowerPC,
> we want to use the linkcmds.share infrastructure but both use
> ALIGN_WITH_INPUT for the first .data section.
> For these BSPs, we need the .data to be on a 4K page boundary.

Why the .data section?

You can add an empty array with a 4KiB alignment and a section attribute 
for specific linker input sections.

If you want to place all read-write data on a 4KiB boundary, then use

bsp_section_rwbarrier_align = 4096;

Sebastian Huber, embedded brains GmbH

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