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ppc: Use r12 instead of r14 as GOT pointer.

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r14 is not supposed to be clobbered by functions. Switch
to r12 and call GET_GOT when needed. This will allow u-boot
to loose the -ffixed-r14 gcc option.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
This commit is contained in:
Joakim Tjernlund
2010-01-19 14:41:56 +01:00
committed by Wolfgang Denk
parent fc4e188789
commit 0f8aa15917
13 changed files with 79 additions and 65 deletions
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8
include/ppc_asm.tmpl
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@@ -50,13 +50,13 @@
.text 2 ; \
0: .long .LCTOC1-1f ; \
.text ; \
1: mflr r14 ; \
lwz r0,0b-1b(r14) ; \
add r14,r0,r14 ;
1: mflr r12 ; \
lwz r0,0b-1b(r12) ; \
add r12,r0,r12 ;
#define GOT_ENTRY(NAME) .L_ ## NAME = . - .LCTOC1 ; .long NAME
#define GOT(NAME) .L_ ## NAME (r14)
#define GOT(NAME) .L_ ## NAME (r12)
/***************************************************************************