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 5b03fef66..ca1de954c 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 123a14c5a..4e10ddbcc 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 78818a49e..bb2747b6d 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 889bc77d2..98b0a7924 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 c90d1e945..036e61b90 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 3e84f234d..838454928 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 937c87a27..8da6f1472 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)