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[Blackfin] arch: In the double fault handler, set up the PT_RETI slot

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In the double fault handler, set up the PT_RETI slot so that
we print out the correct return address in the dumping code.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Bernd Schmidt 2008-05-07 11:41:26 +08:00 committed by Bryan Wu
parent 1bfb4b21c7
commit ddb3f00ca0
1 changed files with 5 additions and 0 deletions
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5
arch/blackfin/mach-common/entry.S
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@ -295,6 +295,11 @@ ENTRY(_double_fault)
*/
SAVE_ALL_SYS
/* The dumping functions expect the return address in the RETI
* slot. */
r6 = retx;
[sp + PT_PC] = r6;
r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
SP += -12;
call _double_fault_c;