
# Sorry, I put a Japanese character in last mail. # Sending again
Hello Wolfgang
Ummm... What shall I say? ELDK for MIPS supports both LE and BE configurations, and both work just fine, except for the fact that the
Thank you for reply.
ELDK user is ok. but with mipsel-linux-gcc, and to comile for little, there is a 2 problem.
1. always add -EB to compiler.
-- cpu/mips/config.mk --- ifneq (,$(findstring 4KCle,$(CROSS_COMPILE))) ENDIANNESS = -EL else ENDIANNESS = -EB endif
this means, to compile for little endian, part of cross compiler name have to has a name of "4KCle". otherwise, it will put -EB.
I think, we do not need to put -EL or -EB, compiler default is enough.
2. examples/mips.lds, board/dbau1x00/u-boot.lds
OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips")
this specify bigendian format.
mipsel-linux-ld -g -Ttext 0x80200000 -T mips.lds \ -o hello_world -e hello_world hello_world.o libstubs.a \ -L/usr/src/mldbox/gcc-3.3.x/toolchain_mipsel/bin-ccache/../lib/gcc-lib/mipsel-linux-uclibc/3.3.4 -lgcc mipsel-linux-ld: hello_world.o: compiled for a little endian system and target is big endian mipsel-linux-ld: hello_world.o: endianness incompatible with that of the selected emulation File in wrong format: failed to merge target specific data of file hello_world.omipsel-linux-ld: libstubs.a(stubs.o): compiled for a little endian system and target is big endian mipsel-linux-ld: libstubs.a(stubs.o): endianness incompatible with that of the selected emulation File in wrong format: failed to merge target specific data of file libstubs.a(stubs.o)
To fix these error, I need to change OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips") to OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradlittlemips", "elf32-tradlittlemips")
or deleteing this line also work. so, if ELDK works, without this line, please delete it.
-------- Hiroshi Ito Media Lab. Inc., URL http://www.mlb.co.jp ( Sorry, Japanese only. ) TEL +81-3-5294-7255 FAX +81-3-5294-7256
dbau1x00 port produces warnings because it is broken as it uses a definition of HZ which is not 1000:
-> export CROSS_COMPILE=mips_4KC- -> ./MAKEALL dbau1550 Configuring for dbau1x00 board... net.c: In function `NetStartAgain': net.c:597: warning: integer overflow in expression xyzModem.c: In function `xyzModem_stream_open': xyzModem.c:455: warning: unused variable `console_chan' text data bss dec hex filename 127896 4548 22864 155308 25eac u-boot
-> export CROSS_COMPILE=mips_4KCle- -> ./MAKEALL dbau1550_el Configuring for dbau1x00 board... net.c: In function `NetStartAgain': net.c:597: warning: integer overflow in expression xyzModem.c: In function `xyzModem_stream_open': xyzModem.c:455: warning: unused variable `console_chan' text data bss dec hex filename 130072 4548 22864 157484 2672c u-boot
IMHO it's clearly a toolchain problem, but who am I to know such things?
Best regards,
Wolfgang Denk
-- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de We fight only when there is no other choice. We prefer the ways of peaceful contact. -- Kirk, "Spectre of the Gun", stardate 4385.3
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