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2009-11-11 Till Straumann <strauman@slac.stanford.edu>

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* start/start.S: Ensure that initial stack is aligned to
	CPU_STACK_ALIGNMENT.
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Till Straumann
2009-11-11 14:29:08 +00:00
parent 131e0467d2
commit 00d6017bdf
1 changed files with 4 additions and 1 deletions
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5
c/src/lib/libbsp/powerpc/psim/start/start.S
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@@ -100,9 +100,12 @@ _start:
.Lnostack: .Lnostack:
/* set up initial stack frame */ /* set up initial stack frame */
addi sp,sp,-4 /* make sure we don't overwrite debug mem */ addi sp,sp,-4 /* make sure we don't overwrite debug mem */
/* align */
li r3, CPU_STACK_ALIGNMENT-1
andc sp, sp, r3
lis r0,0 lis r0,0
stw r0,0(sp) /* clear back chain */ stw r0,0(sp) /* clear back chain */
stwu sp,-56(sp) /* push another stack frame */ stwu sp,-CPU_STACK_ALIGNMENT(sp) /* push another stack frame */
bl FUNC_NAME(__eabi) bl FUNC_NAME(__eabi)
/* Let her rip */ /* Let her rip */