[U-Boot] [PATCH 4/6] mpc83xx: Add support form -msingle-pic-base
Joakim Tjernlund
Joakim.Tjernlund at transmode.se
Tue Nov 23 19:48:49 CET 2010
singel-pic-base is pending inclusinon in gcc and is useful
for reducing code size and impl. true PIC.
---
arch/powerpc/cpu/mpc83xx/start.S | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/cpu/mpc83xx/start.S b/arch/powerpc/cpu/mpc83xx/start.S
index ec65f40..3d4e288 100644
--- a/arch/powerpc/cpu/mpc83xx/start.S
+++ b/arch/powerpc/cpu/mpc83xx/start.S
@@ -298,7 +298,11 @@ in_flash:
/*------------------------------------------------------*/
GET_GOT /* initialize GOT access */
-
+#if defined(__pic__) && __pic__ == 1
+ /* Needed for upcoming -msingle-pic-base */
+ bl _GLOBAL_OFFSET_TABLE_ at local-4
+ mflr r30
+#endif
/* r3: IMMR */
lis r3, CONFIG_SYS_IMMR at h
/* run low-level CPU init code (in Flash)*/
@@ -860,7 +864,11 @@ relocate_code:
mr r10, r5 /* Save copy of Destination Address */
GET_GOT
-
+#if defined(__pic__) && __pic__ == 1
+ /* Needed for upcoming -msingle-pic-base */
+ bl _GLOBAL_OFFSET_TABLE_ at local-4
+ mflr r30
+#endif
lwz r4, GOT(_start) /* Source Address */
addi r4, r4, -EXC_OFF_SYS_RESET
lwz r5, GOT(__bss_start)
--
1.7.2.2
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