Commit graph

15 commits

Author SHA1 Message Date
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
Wolfgang Denk
2b208f5308 Move "ar" flags to config.mk to allow for silent "make -s"
Based on patch by Mike Frysinger, 20 Jun 2006
2006-10-09 01:02:05 +02:00
Marian Balakowicz
f93286397e Add support for a saving build objects in a separate directory.
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.
2006-09-01 19:49:50 +02:00
Wolfgang Denk
7481266e4e 2005-12-12 16:06:05 +01:00
Wolfgang Denk
77ddac9480 Cleanup for GCC-4.x 2005-10-13 16:45:02 +02:00
Wolfgang Denk
807d5d7319 Fix problems with ld version 2.16 (dot outside sections problem)
Pointed out by Gerhard Jaeger, 31 Aug 2005;
cf. http://sourceware.org/ml/binutils/2005-08/msg00412.html
2005-08-31 12:28:00 +02:00
wdenk
c83bf6a2d0 Add a common get_ram_size() function and modify the the
board-specific files to invoke that common implementation.
2004-01-06 22:38:14 +00:00
wdenk
2535d60277 * Patch by Martin Krause, 17 Jul 2003:
add delay to get I2C working with "imm" command and s3c24x0_i2c.c

* Patch by Richard Woodruff, 17 July 03:
  - Fixed bug in OMAP1510 baud rate divisor settings.

* Patch by Nye Liu, 16 July 2003:
  MPC860FADS fixes:
  - add MPC86xADS support (uses MPC86xADS.h)
  - add 866P/T core support (also MPC859T/MPC859DSL/MPC852T)
    o PLPRCR changes
    o BRG changes (EXTAL/XTAL restricted to 10MHz)
    o don't trust gclk() software measurement by default, depend on
      CONFIG_8xx_GCLK_FREQ
  - add DRAM SIMM not installed detection
  - use more "correct" SDRAM initialization sequence
  - allow different SDRAM sizes (8xxADS has 8M)
  - default DER is 0
  - remove unused MAMR defines from FADS860T.h (all done in fads.c)
  - rename MAMR/MBMR defines to be more consistent. Should eventually
    be merged into MxMR to better reflect the PowerQUICC datasheet.

* Patch by Yuli Barcohen, 16 Jul 2003:
  support new Motorola PQ2FADS-ZU evaluation board which replaced
  MPC8260ADS and MPC8266ADS
2003-07-17 23:16:40 +00:00
wdenk
8bde7f776c * Code cleanup:
- remove trailing white space, trailing empty lines, C++ comments, etc.
  - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)

* Patches by Kenneth Johansson, 25 Jun 2003:
  - major rework of command structure
    (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
wdenk
b783edaee8 * Header file cleanup for ARM
* Patch by Murray Jensen, 24 Jun 2003:
  - make sure to use only U-boot provided header files
  - fix problems with ".rodata.str1.4" section as used by GCC-3.x
2003-06-25 22:26:29 +00:00
wdenk
3b57fe0a70 * Get (mostly) rid of CFG_MONITOR_LEN definition; compute real length
instead CFG_MONITOR_LEN is now only used to determine  _at_compile_
  _time_  (!) if the environment is embedded within the U-Boot image,
  or in a separate flash sector.

* Cleanup CFG_DER #defines in config files (wd maintained only)
2003-05-30 12:48:29 +00:00
wdenk
16f217049a Initial revision 2002-08-26 21:58:50 +00:00
wdenk
affae2bff8 Initial revision 2002-08-17 09:36:01 +00:00
wdenk
efee170991 Initial revision 2002-07-20 20:14:13 +00:00
wdenk
a17d6b01b4 Initial revision 2001-05-01 14:17:57 +00:00