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sh: Setup the frame pointer in handle_interrupt

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When CONFIG_DWARF_UNWINDER is enabled setup r14 in handle_interrupt, so
that we can figure out what function was running when we were
interrupted.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
This commit is contained in:
Matt Fleming 2009-08-20 17:00:21 +01:00
parent b344e24a8e
commit fe98dd31eb
1 changed files with 2 additions and 0 deletions
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2
arch/sh/kernel/cpu/sh3/entry.S
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@ -508,6 +508,8 @@ ENTRY(handle_interrupt)
bsr save_regs ! needs original pr value in k3
mov #-1, k2 ! default vector kept in k2
setup_frame_reg
! Setup return address and jump to do_IRQ
mov.l 4f, r9 ! fetch return address
lds r9, pr ! put return address in pr