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>
The pxa255_idp being an old unmaintained board showed several issues:
1. CONFIG_INIT_CRITICAL was still defined.
2. Neither CONFIG_MAC_PARTITION nor CONFIG_DOS_PARTITION was defined.
3. Symbol flash_addr was undeclared.
4. The boards lowlevel_init function was still called memsetup.
5. The TEXT_BASE was still 0xa3000000 rather than 0xa3080000.
6. Using -march=armv5 instead of -march=armv5te resulted in lots of
'target CPU does not support interworking' warnings on recent compilers.
7. The PXA's serial driver redefined FFUART, BTUART and STUART used as
indexes rather than the register definitions from the pxa-regs header
file. Renamed them to FFUART_INDEX, BTUART_INDEX and STUART_INDEX to
avoid any ambiguities.
8. There were several redefinition warnings concerning ICMR, OSMR3,
OSCR, OWER, OIER, RCSR and CCCR in the PXA's assembly start file.
9. The board configuration file was rather outdated.
10. The part header file defined the vendor, product and revision arrays
as unsigned chars instead of just chars in the block_dev_desc_t
structure.
Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
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.
- move at45.c to board/at91rm9200dk/ since this is at91rm9200dk
board specific
- split out the LXT971A PHY from ns_9750_eth.h
- split the dm9161 phy part out of at91rm9200_ether.c
- 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)
Add support for Atmel AT91RM9200DK w/NAND
* Patches by Robert Schwebel, 19 Mar 2003:
- use arm-linux-gcc as default compiler for ARM
- fix i2c fixup code
- fix missing baudrate setting
- added $loadaddr / CFG_LOAD_ADDR support to loadb
- moved "ignoring trailing characters" _before_ u-boot wants to
print out diagnostics messages; removes bogus characters at the
end of transmission
* Patch by John Zhan, 18 Mar 2003:
Add support for SinoVee Microsystems SC8xx boards
* Patch by Rolf Offermanns, 21 Mar 2003:
ported the dnp1110 related changes from the current armboot cvs to
current u-boot cvs. smc91111 does not work. problem marked in
smc91111.c, grep for "FIXME".
* Patch by Brian Auld, 25 Mar 2003:
Add support for STM flash chips on ebony board
* Add PCI support for MPC8250 Boards (PM825 module)
* Patch by Stefan Roese, 25 Mar 2003:
Sebastien Carlier
Marek Vasut
Wolfgang Denk
Marcel Ziswiler
Wolfgang Denk
Marian Balakowicz
Wolfgang Denk
wdenk