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  1. Oct 15, 2011
  2. Sep 10, 2011
  3. Sep 09, 2011
    • Greg Ungerer's avatar
      CM4000: fix broken flash base for OpenGear boards · 297f18ac
      Greg Ungerer authored
      
      Use _bss_start_ofs as the size of the boot loader code+data that we want
      to protect in the flash. This replaces use of the no longer defined
      _armboot_start.
      
      Fixes:
      
      flash.c: In function ‘flash_init’:
      flash.c:75: error: ‘_bss_start’ undeclared (first use in this function)
      flash.c:75: error: (Each undeclared identifier is reported only once
      flash.c:75: error: for each function it appears in.)
      flash.c:75: error: ‘_armboot_start’ undeclared (first use in this function)
      
      Signed-off-by: default avatar <greg.ungerer@opengear.com>
      297f18ac
  4. Jul 16, 2011
  5. Nov 17, 2010
    • Sebastien Carlier's avatar
      Switch from archive libraries to partial linking · 6d8962e8
      Sebastien Carlier authored
      
      Before this commit, weak symbols were not overridden by non-weak symbols
      found in archive libraries when linking with recent versions of
      binutils.  As stated in the System V ABI, "the link editor does not
      extract archive members to resolve undefined weak symbols".
      
      This commit changes all Makefiles to use partial linking (ld -r) instead
      of creating library archives, which forces all symbols to participate in
      linking, allowing non-weak symbols to override weak symbols as intended.
      This approach is also used by Linux, from which the gmake function
      cmd_link_o_target (defined in config.mk and used in all Makefiles) is
      inspired.
      
      The name of each former library archive is preserved except for
      extensions which change from ".a" to ".o".  This commit updates
      references accordingly where needed, in particular in some linker
      scripts.
      
      This commit reveals board configurations that exclude some features but
      include source files that depend these disabled features in the build,
      resulting in undefined symbols.  Known such cases include:
      - disabling CMD_NET but not CMD_NFS;
      - enabling CONFIG_OF_LIBFDT but not CONFIG_QE.
      
      Signed-off-by: default avatarSebastien Carlier <sebastien.carlier@gmail.com>
      6d8962e8
  6. Oct 18, 2010
    • Wolfgang Denk's avatar
      Rename TEXT_BASE into CONFIG_SYS_TEXT_BASE · 14d0a02a
      Wolfgang Denk authored
      
      The change is currently needed to be able to remove the board
      configuration scripting from the top level Makefile and replace it by
      a simple, table driven script.
      
      Moving this configuration setting into the "CONFIG_*" name space is
      also desirable because it is needed if we ever should move forward to
      a Kconfig driven configuration system.
      
      Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
      14d0a02a
  7. Jun 12, 2009
  8. Mar 20, 2009
    • Trent Piepho's avatar
      Fix all linker script to handle all rodata sections · f62fb999
      Trent Piepho authored
      
      A recent gcc added a new unaligned rodata section called '.rodata.str1.1',
      which needs to be added the the linker script.  Instead of just adding this
      one section, we use a wildcard ".rodata*" to get all rodata linker section
      gcc has now and might add in the future.
      
      However, '*(.rodata*)' by itself will result in sub-optimal section
      ordering.  The sections will be sorted by object file, which causes extra
      padding between the unaligned rodata.str.1.1 of one object file and the
      aligned rodata of the next object file.  This is easy to fix by using the
      SORT_BY_ALIGNMENT command.
      
      This patch has not be tested one most of the boards modified.  Some boards
      have a linker script that looks something like this:
      
      *(.text)
      . = ALIGN(16);
      *(.rodata)
      *(.rodata.str1.4)
      *(.eh_frame)
      
      I change this to:
      
      *(.text)
      . = ALIGN(16);
      *(.eh_frame)
      *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
      
      This means the start of rodata will no longer be 16 bytes aligned.
      However, the boundary between text and rodata/eh_frame is still aligned to
      16 bytes, which is what I think the real purpose of the ALIGN call is.
      
      Signed-off-by: default avatarTrent Piepho <xyzzy@speakeasy.org>
      f62fb999
  9. Nov 18, 2008
  10. Oct 18, 2008
  11. Jul 02, 2008
  12. Jan 12, 2008
    • Wolfgang Denk's avatar
      Fix linker scripts: add NOLOAD atribute to .bss/.sbss sections · 64134f01
      Wolfgang Denk authored
      
      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: default avatarWolfgang Denk <wd@denx.de>
      64134f01
  13. Oct 08, 2006
  14. Sep 01, 2006
    • Marian Balakowicz's avatar
      Add support for a saving build objects in a separate directory. · f9328639
      Marian Balakowicz authored
      Modifications are based on the linux kernel approach and
      support two use cases:
      
        1) Add O= to the make command line
        'make O=/tmp/build all'
      
        2) Set environement variable BUILD_DIR to point to the desired location
        'export BUILD_DIR=/tmp/build'
        'make'
      
      The second approach can also be used with a MAKEALL script
      'export BUILD_DIR=/tmp/build'
      './MAKEALL'
      
      Command line 'O=' setting overrides BUILD_DIR environent variable.
      
      When none of the above methods is used the local build is performed and
      the object files are placed in the source directory.
      f9328639
  15. Mar 31, 2006
  16. Aug 31, 2005
  17. May 19, 2005
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