Commit graph

7 commits

Author SHA1 Message Date
Selvamuthukumar
9b827cf172 Align end of bss by 4 bytes
Most of the bss initialization loop increments 4 bytes
at a time. And the loop end is checked for an 'equal'
condition. Make the bss end address aligned by 4, so
that the loop will end as expected.

Signed-off-by: Selvamuthukumar <selva.muthukumar@e-coninfotech.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-11-18 23:13:16 +01:00
Wolfgang Denk
64134f0112 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>
2008-01-12 20:31:39 +01:00
Shinya Kuribayashi
eb700636db [MIPS] u-boot.lds: Define _gp in a standard manner
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2007-10-21 10:55:37 +09:00
Shinya Kuribayashi
cbf2323b5b [MIPS] u-boot.lds: Fix __got_start and __got_end
Ensure that __got_start points to top of the `.got', and __got_end points
to bottom as well, so that we never fail to count num_got_entries.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2007-10-21 10:55:36 +09:00
Shinya Kuribayashi
e5f325fec5 [MIPS] u-boot.lds: Remove duplicated .sdata section
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2007-10-21 10:55:36 +09:00
wdenk
d716b12671 Add startup code to clear the BSS of standalone applications 2004-04-12 16:12:49 +00:00
wdenk
27b207fd0a * Implement new mechanism to export U-Boot's functions to standalone
applications: instead of using (PPC-specific) system calls we now
  use a jump table; please see doc/README.standalone for details

* Patch by Dave Westwood, 24 Jul 2003:
  added support for Unity OS (a proprietary OS)
2003-07-24 23:38:38 +00:00