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2010-11-17Switch from archive libraries to partial linkingSebastien Carlier
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>
2010-09-21POST cleanup.Michael Zaidman
- Revives POST for blackfin arch; - Removes redundant code: arch/blackfin/lib/post.c arch/powerpc/cpu/ppc4xx/commproc.c arch/powerpc/cpu/mpc512x/common.c - fixes up the post_word_{load|store} usage. Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com> Acked-by: Detlev Zundel <dzu@denx.de> Tested-by: Anatolij Gustschin <agust@denx.de> List of the maintainers of the affected by patch boards: Cc: Stephan Linz <linz@li-pro.net> Cc: Denis Peter <d.peter@mpl.ch> Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Stefan Roese <sr@denx.de> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Niklaus Giger <niklaus.giger@netstal.com> Cc: Larry Johnson <lrj@acm.org> Cc: Feng Kan <fkan@amcc.com>
2008-12-16post/Makefile: fix dependency problem with parallel buildsWolfgang Denk
Parallel builds (using "make -jN") would occasionally fail with error messages like ppc_4xxFP-objdump: string.o: File format not recognized or post/libpost.a(cpu.o): In function `cpu_post_test': /home/wd/git/u-boot/work/post/lib_ppc/cpu.c:130: undefined reference to `cpu_post_test_string' or similar. We now make sure to run the 'postdeps" step before attempting to build the specific POST libraries. Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-12-15POST Make: fix the sub-dir dependencies missing.Yuri Tikhonov
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
2008-04-28post: Fix building with O=Kumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-26post/Makefile: make sure to use the correct flagsWolfgang Denk
ARFLAGS was not set, which caused "ppc_8xx-ar: creating libgenpost.a" messages to be printed. Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-04-22POST: move CONFIG_POST to MakefilesYuri Tikhonov
Introduce the new logical option CONFIG_HAS_POST which is set when the platform has CONFIG_POST set. Use CONFIG_HAS_POST in the post/ Makefiles to determine should the POST libs be compiled for the selected target platform, or not. To avoid breaking u-boot linking process, the empty post/libpost.a file is created for platforms which do not have POSTs. Signed-off-by: Yuri Tikhonov <yur@emcraft.com> Signed-off-by: Wolfgang Denk <wd@denx.de>
2007-03-06Restructure POST directory to support of other CPUs, boards, etc.Wolfgang Denk
2006-09-01Add support for a saving build objects in a separate directory.Marian Balakowicz
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.
2004-06-07Patch by Pantelis Antoniou, 5 May 2004:wdenk
- Intracom board update. - Add Codec POST.
2004-04-15* Patches by Pantelis Antoniou, 30 Mar 2004:wdenk
- add support for the Epson 156x series of graphical displays (These displays are serial and not suitable for using a normal framebuffer console on them) - add infrastructure needed in order to POST any DSPs in a board
2003-04-27* LWMON extensions:wdenk
- Splashscreen support - modem support - sysmon support - temperature dependend enabling of LCD * Allow booting from old "PPCBoot" disk partitions * Add support for TQM8255 Board / MPC8255 CPU
2002-08-27Initial revisionwdenk