PowerPC: Add relocation support for -fpic

By rearranging the linker script we get support for
relocation of -fpic for free.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>

11 files changed, 33 insertions, 22 deletions

diff --git a/arch/powerpc/cpu/74xx_7xx/u-boot.lds b/arch/powerpc/cpu/74xx_7xx/u-boot.lds
index 771a845..8429f33 100644
--- a/arch/powerpc/cpu/74xx_7xx/u-boot.lds
+++ b/arch/powerpc/cpu/74xx_7xx/u-boot.lds
@@ -43,13 +43,14 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_)>>2;
 
   .data    :
diff --git a/arch/powerpc/cpu/mpc512x/u-boot.lds b/arch/powerpc/cpu/mpc512x/u-boot.lds
index 361e714..ab9303f 100644
--- a/arch/powerpc/cpu/mpc512x/u-boot.lds
+++ b/arch/powerpc/cpu/mpc512x/u-boot.lds
@@ -37,14 +37,15 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
     *(.fixup)
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
 
   .data    :
diff --git a/arch/powerpc/cpu/mpc5xx/u-boot.lds b/arch/powerpc/cpu/mpc5xx/u-boot.lds
index b7fd4bc..69bd7aa 100644
--- a/arch/powerpc/cpu/mpc5xx/u-boot.lds
+++ b/arch/powerpc/cpu/mpc5xx/u-boot.lds
@@ -46,13 +46,14 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_)>>2;
 
   .data    :
diff --git a/arch/powerpc/cpu/mpc5xxx/u-boot.lds b/arch/powerpc/cpu/mpc5xxx/u-boot.lds
index eeeff6c..7e3b70a 100644
--- a/arch/powerpc/cpu/mpc5xxx/u-boot.lds
+++ b/arch/powerpc/cpu/mpc5xxx/u-boot.lds
@@ -41,13 +41,14 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
 
   .data    :
diff --git a/arch/powerpc/cpu/mpc8220/u-boot.lds b/arch/powerpc/cpu/mpc8220/u-boot.lds
index 63cbbd7..72ff671 100644
--- a/arch/powerpc/cpu/mpc8220/u-boot.lds
+++ b/arch/powerpc/cpu/mpc8220/u-boot.lds
@@ -40,13 +40,14 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
 
   .data    :
diff --git a/arch/powerpc/cpu/mpc824x/u-boot.lds b/arch/powerpc/cpu/mpc824x/u-boot.lds
index e7f2837..3b9299c 100644
--- a/arch/powerpc/cpu/mpc824x/u-boot.lds
+++ b/arch/powerpc/cpu/mpc824x/u-boot.lds
@@ -41,13 +41,14 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
 
   .data    :
diff --git a/arch/powerpc/cpu/mpc8260/u-boot.lds b/arch/powerpc/cpu/mpc8260/u-boot.lds
index ad2ce37..c76555e 100644
--- a/arch/powerpc/cpu/mpc8260/u-boot.lds
+++ b/arch/powerpc/cpu/mpc8260/u-boot.lds
@@ -40,13 +40,14 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
 
   .data    :
diff --git a/arch/powerpc/cpu/mpc83xx/u-boot.lds b/arch/powerpc/cpu/mpc83xx/u-boot.lds
index 81a7ace..752a175 100644
--- a/arch/powerpc/cpu/mpc83xx/u-boot.lds
+++ b/arch/powerpc/cpu/mpc83xx/u-boot.lds
@@ -39,13 +39,14 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
 
   .data    :
diff --git a/arch/powerpc/cpu/mpc85xx/u-boot.lds b/arch/powerpc/cpu/mpc85xx/u-boot.lds
index 85042c5..67d7763 100644
--- a/arch/powerpc/cpu/mpc85xx/u-boot.lds
+++ b/arch/powerpc/cpu/mpc85xx/u-boot.lds
@@ -54,13 +54,14 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
 
   .data    :
diff --git a/arch/powerpc/cpu/mpc86xx/u-boot.lds b/arch/powerpc/cpu/mpc86xx/u-boot.lds
index 49a4c78..c550ef5 100644
--- a/arch/powerpc/cpu/mpc86xx/u-boot.lds
+++ b/arch/powerpc/cpu/mpc86xx/u-boot.lds
@@ -45,13 +45,14 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
 
   .data    :
diff --git a/arch/powerpc/cpu/ppc4xx/u-boot.lds b/arch/powerpc/cpu/ppc4xx/u-boot.lds
index 842ff5f..656f59a 100644
--- a/arch/powerpc/cpu/ppc4xx/u-boot.lds
+++ b/arch/powerpc/cpu/ppc4xx/u-boot.lds
@@ -59,13 +59,14 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
 
   .data    :