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* Move DECLARE_GLOBAL_DATA_PTR to file scopeJohn Rigby2010-12-21-2/+2
| | | | | | | | | | | | | | | It can be optimised out by the compiler otherwise resulting in obscure errors like a board not booting. This has been documented in README since 2006 when these were first fixed up for GCC 4.x. Signed-off-by: John Rigby <john.rigby@linaro.org> Fix some additional places. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-By: Albert ARIBAUD <albert.aribaud@free.fr>
* Switch from archive libraries to partial linkingSebastien Carlier2010-11-17-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Rename TEXT_BASE into CONFIG_SYS_TEXT_BASEWolfgang Denk2010-10-18-2/+2
| | | | | | | | | | | | 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: Wolfgang Denk <wd@denx.de>
* sh: Update lowlevel_init.S of mpr2Nobuhiro Iwamatsu2010-08-30-4/+4
| | | | | | Fix data size. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
* sh: unify linker scriptJean-Christophe PLAGNIOL-VILLARD2009-07-08-102/+0
| | | | | | | | | | | | | | | all sh boards use the same cpu linker script so move it to cpu/$(CPU) that could be overwrite in following order SOC BOARD via the corresponding config.mk tested on r2dplus Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* sh: make the linker scripts more genericJean-Christophe PLAGNIOL-VILLARD2009-07-08-10/+3
| | | | | | | | | | | | | currently we need to sync the linker script enty and TEXT_BASE manualy and the reloc_dst is based on it instead provide it now from the ldflags tested on r2dplus Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* Fix all linker script to handle all rodata sectionsTrent Piepho2009-03-20-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Trent Piepho <xyzzy@speakeasy.org>
* sh: use write{8,16,32} in all lowlevel_initJean-Christophe PLAGNIOL-VILLARD2009-01-16-36/+13
| | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* sh: lowlevel_init coding style cleanupJean-Christophe PLAGNIOL-VILLARD2009-01-16-19/+25
| | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD2008-10-18-3/+3
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* rename environment.c in env_embedded.c to reflect is functionalityJean-Christophe PLAGNIOL-VILLARD2008-09-10-2/+2
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* sh: Fix SH-boards compile errorNobuhiro Iwamatsu2008-07-08-1/+1
| | | | | | | | | By Cleanup out-or-tree building for some boards (.depend) (commit:c8a3b109f07f02342d097b30908965f7261d9f15) because filse ware changed, some SH-boards have compile error. I revised this problem. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* Cleanup out-or-tree building for some boards (.depend)Wolfgang Denk2008-07-02-1/+1
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Cleanup: fix out-of-tree building for some boardsWolfgang Denk2008-07-02-4/+8
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Cleanup: replace hard-wired $(AR) 'crv' settings by $(ARFLAGS)Wolfgang Denk2008-07-02-1/+1
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Coding Style cleanup; update CHANGELOGWolfgang Denk2008-04-13-3/+2
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* sh: Added support for SH7720 based board MPR2.Mark Jonas2008-03-28-0/+510
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>