microblaze: Simplify _debug_exception function

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Keep together all arguments for send_sig function.
Move returning address to delay slot which is executed.
Remove additional send_sig loading. I am using IMM part of
rtbd instruction with r0.

old solution:
addik r11, r0, send_sig
rtbd r11, 0
nop

new solution:
rtbd r0, send_sig
nop

There is one instruction saving.

Signed-off-by: Michal Simek <monstr@monstr.eu>

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This commit is contained in:

Michal Simek 2010-06-22 15:25:24 +02:00

parent 8b110d157c

commit 06b2864038

1 changed files with 2 additions and 5 deletions

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arch/microblaze/kernel/entry.S

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