Fix linker scripts: add NOLOAD atribute to .bss/.sbss sections

With recent toolchain versions, some boards would not build because
or errors like this one (here for ocotea board when building with
ELDK 4.2 beta):
ppc_4xx-ld: section .bootpg [fffff000 -> fffff23b] overlaps section .bss [fffee900 -> fffff8ab]

For many boards, the .bss section is big enough that it wraps around
at the end of the address space (0xFFFFFFFF), so the problem will not
be visible unless you use a 64 bit tool chain for development. On
some boards however, changes to the code size (due to different
optimizations) we bail out with section overlaps like above.

The fix is to add the NOLOAD attribute to the .bss and .sbss
sections, telling the linker that .bss does not consume any space in
the image.

Signed-off-by: Wolfgang Denk <wd@denx.de>

7 files changed, 7 insertions, 7 deletions

diff --git a/cpu/mpc5xx/u-boot.lds b/cpu/mpc5xx/u-boot.lds
index 5b03fef66c..ca1de954cd 100644
--- a/cpu/mpc5xx/u-boot.lds
+++ b/cpu/mpc5xx/u-boot.lds
@@ -121,7 +121,7 @@ SECTIONS
   __init_end = .;
 
   __bss_start = .;
-  .bss       :
+  .bss (NOLOAD)       :
   {
    *(.sbss) *(.scommon)
    *(.dynbss)
diff --git a/cpu/mpc5xxx/u-boot-customlayout.lds b/cpu/mpc5xxx/u-boot-customlayout.lds
index 123a14c5aa..4e10ddbcc2 100644
--- a/cpu/mpc5xxx/u-boot-customlayout.lds
+++ b/cpu/mpc5xxx/u-boot-customlayout.lds
@@ -124,7 +124,7 @@ SECTIONS
   __init_end = .;
 
   __bss_start = .;
-  .bss       :
+  .bss (NOLOAD)       :
   {
    *(.sbss) *(.scommon)
    *(.dynbss)
diff --git a/cpu/mpc5xxx/u-boot.lds b/cpu/mpc5xxx/u-boot.lds
index 78818a49eb..bb2747b6d7 100644
--- a/cpu/mpc5xxx/u-boot.lds
+++ b/cpu/mpc5xxx/u-boot.lds
@@ -113,7 +113,7 @@ SECTIONS
   __init_end = .;
 
   __bss_start = .;
-  .bss       :
+  .bss (NOLOAD)       :
   {
    *(.sbss) *(.scommon)
    *(.dynbss)
diff --git a/cpu/mpc8220/u-boot.lds b/cpu/mpc8220/u-boot.lds
index 889bc77d2f..98b0a79244 100644
--- a/cpu/mpc8220/u-boot.lds
+++ b/cpu/mpc8220/u-boot.lds
@@ -113,7 +113,7 @@ SECTIONS
   __init_end = .;
 
   __bss_start = .;
-  .bss       :
+  .bss (NOLOAD)       :
   {
    *(.sbss) *(.scommon)
    *(.dynbss)
diff --git a/cpu/mpc824x/u-boot.lds b/cpu/mpc824x/u-boot.lds
index c90d1e9457..036e61b908 100644
--- a/cpu/mpc824x/u-boot.lds
+++ b/cpu/mpc824x/u-boot.lds
@@ -113,7 +113,7 @@ SECTIONS
   __init_end = .;
 
   __bss_start = .;
-  .bss       :
+  .bss (NOLOAD)       :
   {
    *(.sbss) *(.scommon)
    *(.dynbss)
diff --git a/cpu/mpc8260/u-boot.lds b/cpu/mpc8260/u-boot.lds
index 3e84f234d7..8384549283 100644
--- a/cpu/mpc8260/u-boot.lds
+++ b/cpu/mpc8260/u-boot.lds
@@ -113,7 +113,7 @@ SECTIONS
   __init_end = .;
 
   __bss_start = .;
-  .bss       :
+  .bss (NOLOAD)       :
   {
    *(.sbss) *(.scommon)
    *(.dynbss)
diff --git a/cpu/mpc83xx/u-boot.lds b/cpu/mpc83xx/u-boot.lds
index 937c87a27c..8da6f14725 100644
--- a/cpu/mpc83xx/u-boot.lds
+++ b/cpu/mpc83xx/u-boot.lds
@@ -110,7 +110,7 @@ SECTIONS
   __init_end = .;
 
   __bss_start = .;
-  .bss       :
+  .bss (NOLOAD)       :
   {
    *(.sbss) *(.scommon)
    *(.dynbss)