Messages in this thread | | | Date | Mon, 30 Jul 2012 15:38:48 -0700 | From | Stephen Boyd <> | Subject | Re: [PATCH] ARM: Sort exception table at compile time |
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On 07/30/12 14:56, Russell King - ARM Linux wrote: > On Mon, Jul 30, 2012 at 02:30:03PM -0700, Stephen Boyd wrote: >> Add the ARM machine identifier to sortextable and select the >> config option so that we can sort the exception table at compile >> time. sortextable relies on a section named __ex_table existing >> in the vmlinux, but ARM's linker script places the exception >> table in the data section. Give the exception table its own >> section so that sortextable can find it. >> >> This allows us to skip the runtime sorting step during boot. >> >> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> >> Cc: David Daney <david.daney@cavium.com> >> --- >> >> I can't find any information on why the exception table lives in the data >> section. If there's a good reason for that, I'll look into changing >> sortextable to look for the __start___ex_table symbol. > Be careful about the placement of this, especially with XIP. >
Thanks for the hint. I'm unfamiliar with how XIP works so I'll take a closer look there.
-- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
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