Commit graph

10 commits

Author SHA1 Message Date
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
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: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00
Wolfgang Denk
c8a3b109f0 Cleanup out-or-tree building for some boards (.depend)
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-07-02 23:49:18 +02:00
Peter Pearse
65d7ada645 Update Makefiles for merged and split at45.c. 2007-08-14 10:30:06 +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
080bdb7f3a * Move dm9161.c and lxt972.c into cpu/arm920t/at91rm9200
Patch by Anders Larsen, 29 Apr 2005

* Fix problems introduced by Patch by Steven Scholz, 02 Mar 2005
  (8e2be51de8)
2005-10-05 01:51:29 +02:00
Wolfgang Denk
c7db9a3805 Initialize serial# and ethaddr from manufacturer data in EEPROM on CMC-PU2
Patch by Martin Krause, 08 Jun 2005
2005-08-19 00:53:02 +02:00
wdenk
ef2807c667 Patch by Steven Scholz, 13 Dec 2004:
Remove duplicated code by merging memsetup.S files for
at91rm9200 boards into one cpu/at91rm9200/lowlevel.S
2005-03-31 23:44:33 +00:00
wdenk
9d5028c2f7 * Update for AT91RM9200DK and CMC_PU2 boards:
- Enable booting directly from flash
  - fix CMC_PU2 flash driver

* Fix mkimage usage message
2004-11-21 00:06:33 +00:00
wdenk
2cbe571a56 * Patch by Gary Jennejohn, 01 Oct 2004:
- add support for CMC PU2 board
  - add support for I2C on at91rm9200

* Patch by Gary Jennejohn, 28 Sep 2004:
  fix baudrate handling on at91rm9200
2004-10-10 17:05:18 +00:00