On 25 January 2018 at 11:22, Alexey Brodkin <alexey.brod...@synopsys.com> wrote:
> From: Alexey Brodkin <alexey.brod...@synopsys.com>
> Disabling relocation might be useful on ARC for 2 reasons:
> a) For advanced debugging with Synopsys proprietary MetaWare debugger
> which is capable of accessing much more specific hardware resources
> compared to gdb. For example it may show contents of L1 and L2 caches,
> internal states of some hardware blocks etc.
> But on the downside MetaWare debugger still cannot work with PIE.
> Even though that limitation could be work-arounded with change of ELF's
> header and stripping down all debug info but with it we won't have
> debug info for source-level debugging which is quite inconvenient.
> b) Some platforms which might benefit from usage of U-Boot basically
> don't have enough RAM to accommodate relocation of U-Boot so we
> keep code in flash and use as much of RAM as possible for more
> interesting things.
> Signed-off-by: Alexey Brodkin <abrod...@synopsys.com>
> Cc: Simon Glass <s...@chromium.org>
> Cc: Bin Meng <bmeng...@gmail.com>
> Cc: Heiko Schocher <h...@denx.de>
> Cc: York Sun <york....@nxp.com>
> Cc: Stefan Roese <s...@denx.de>
> arch/arc/lib/relocate.c | 6 ++++++
> arch/arc/lib/start.S | 8 +++++++-
> common/board_f.c | 3 ++-
> 3 files changed, 15 insertions(+), 2 deletions(-)
Reviewed-by: Simon Glass <s...@chromium.org>
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