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2011-05-09MIPS: Introduce --gc-sections for MIPSDaniel Schwierzeck
All architectures but MIPS are using --gc-sections on final linking. This patch introduces that feature for MIPS to reduce the memory and flash footprint. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Stefan Roese <sr@denx.de> Cc: Thomas Lange <thomas@corelatus.se> Cc: Vlad Lungu <vlad.lungu@windriver.com> Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
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>
2010-10-18Rename TEXT_BASE into CONFIG_SYS_TEXT_BASEWolfgang Denk
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>
2010-09-04MIPS: update the MIPS u-boot.ldsXiangfu Liu
From the document, if set all arguments in "OUTPUT_FORMAT" to "tradbigmips", then even add "-EL" to gcc we still get EB format. pb1x00 is only used in Little-endian, so its default endian should be set to LE. Signed-off-by: Xiangfu Liu <xiangfu@openmobilefree.net> Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2010-04-13mips: Move cpu/mips/* to arch/mips/cpu/*Peter Tyser
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2009-03-20Fix all linker script to handle all rodata sectionsTrent Piepho
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>
2008-11-18Align end of bss by 4 bytesSelvamuthukumar
Most of the bss initialization loop increments 4 bytes at a time. And the loop end is checked for an 'equal' condition. Make the bss end address aligned by 4, so that the loop will end as expected. Signed-off-by: Selvamuthukumar <selva.muthukumar@e-coninfotech.com> Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-10-18rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-06-12Change initdram() return type to phys_size_tBecky Bruce
This patch changes the return type of initdram() from long int to phys_size_t. This is required for a couple of reasons: long int limits the amount of dram to 2GB, and u-boot in general is moving over to phys_size_t to represent the size of physical memory. phys_size_t is defined as an unsigned long on almost all current platforms. This patch *only* changes the return type of the initdram function (in include/common.h, as well as in each board's implementation of initdram). It does not actually modify the code inside the function on any of the platforms; platforms which wish to support more than 2GB of DRAM will need to modify their initdram() function code. Build tested with MAKEALL for ppc, arm, mips, mips-el. Booted on powerpc MPC8641HPCN. Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
2008-06-05[MIPS] Update <asm/addrspace.h> headerShinya Kuribayashi
- Fix traditional KSEG names - Replace PHYSADDR with CPHYSADDR Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2008-06-05[MIPS] Kill unused <version.h> inclusionsShinya Kuribayashi
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2008-05-29[MIPS] <asm/mipsregs.h>: Update coprocessor register access macrosShinya Kuribayashi
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2008-04-18Use jr as register jump instructionShinya Kuribayashi
Current assembler codes are inconsistent in the way of register jump instruction usage; some use jr, some use j. Of course GNU as allows both usages, but as can be expected from `Jump Register' the mnemonic `jr' is more intuitive than `j'. For example, Linux doesn't have `j <reg>' usage at all. Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2008-01-12Fix linker scripts: add NOLOAD atribute to .bss/.sbss sectionsWolfgang Denk
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>
2007-11-19[MIPS] board/gth2/lowlevel_init.S: Fix a build warningShinya Kuribayashi
lowlevel_init.S: Assembler messages: lowlevel_init.S:413: Warning: Pretending global symbol used as branch target is local. Looking at codes, the `memtest' and `clearmem' are intentional mixed use of `global symbols' and `label' for debugging purpose. To make it build, just disable global-symbols-use for now. As a result `memtest' still remains as unused, but leave it be... Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2007-11-17[MIPS] gth2.c: Fix a warning on gth2 build.Shinya Kuribayashi
gth2.c: In function 'misc_init_r': gth2.c:434: warning: pointer targets in passing argument 2 of 'setenv' differ in signedness Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2007-11-17[MIPS] u-boot.lds: Cleanup __u_boot_cmd_{start,end}Shinya Kuribayashi
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2007-11-17Fixed mips_io_port_base build errors.Jean-Christophe PLAGNIOL-VILLARD
This patch has been sent on: - 29 Sep 2007 Although mips_io_port_base is currently a part of IDE command, it is quite fundamental for MIPS I/O port access such as in[bwl] and out[bwl]. So move it to MIPS general part, and introduce `set_io_port_base()' from Linux. This patch is triggered by multiple definition of `mips_io_port_base' build error on gth2 (and tb0229 also needs this fix.) board/gth2/libgth2.a(gth2.o): In function `log_serial_char': /home/skuribay/devel/u-boot.git/board/gth2/gth2.c:47: multiple definition of `mips_io_port_base' common/libcommon.a(cmd_ide.o):/home/skuribay/devel/u-boot.git/common/cmd_ide.c:712: first defined here make: *** [u-boot] Error 1 Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2007-10-21[MIPS] u-boot.lds: Define _gp in a standard mannerShinya Kuribayashi
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2007-10-21[MIPS] u-boot.lds: Fix __got_start and __got_endShinya Kuribayashi
Ensure that __got_start points to top of the `.got', and __got_end points to bottom as well, so that we never fail to count num_got_entries. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2007-10-21[MIPS] u-boot.lds: Remove duplicated .sdata sectionShinya Kuribayashi
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2006-10-08Move "ar" flags to config.mk to allow for silent "make -s"Wolfgang Denk
Based on patch by Mike Frysinger, 20 Jun 2006
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.
2006-07-19Add support for TB5200 boardWolfgang Denk
The TB5200 ("Tinybox") is a small baseboard for the TQM5200 module integrated in a little aluminium case. Patch by Martin Krause, 8 Jun 2006 Some code cleanup
2006-06-16Add support for gth2 boardWolfgang Denk
Patch by Thomas Lange, Aug 11 2005