The attached file is a patch to comiple and link for tb0229 using MIPS technologies SDE.
ftp://ftp.mips.com/pub/tools/software/sde-for-linux/
Masami Komiya
C Michael Sundius wrote:
Hi,
I am trying to port u-boot to a system w/ a mips 4kc little endian processor.
in looking at other cpu/boards to use as a starting point/template, I chose the tb0229 board as it looked to also be a 4kc little endian cpu.
when I build, I get the an undefined reference to _GLOBAL_OFFSET_TABLE_.
I did some fiddling aroud, and comparing to linker command files for other boards and I found that the line:
OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradlittlemips",\ "elf32-tradlittlemips")
if changed to:
OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips")
will allow me to compile and link fine...
my question is then:
- what does this really do?
- if I'm using a little endian cpu, do I really need it set to
elf32-tradlittlemips? 3) if so how do I solve my problem? 4) if not why?
one more note the compiler/toolchain that I'm using is from montavista, the -v option displays the following:
====================================== mips_fp_le-gcc -v Reading specs from /opt/hardhat/devkit/mips/fp_le/lib/gcc-lib/ mipsel-hardhat-linux/3.2.1/specs Configured with: ../configure --host=i686-pc-linux-gnu --target=mipsel-hardhat-linux --prefix=/opt/hardhat/devkit/mips/fp_le --exec-prefix=/opt/hardhat/devkit/mips/fp_le --bindir=/opt/hardhat/devkit/ mips/fp_le/bin --sbindir=/opt/hardhat/devkit/mips/fp_le/sbin --sysconfdir=/ opt/hardhat/devkit/mips/fp_le/etc --datadir=/opt/hardhat/devkit/mips/fp_le/ share --includedir=/opt/hardhat/devkit/mips/fp_le/include --libdir=/opt/ hardhat/devkit/mips/fp_le/lib --libexecdir=/opt/hardhat/devkit/mips/fp_le/ libexec --localstatedir=/opt/hardhat/devkit/mips/fp_le/var --sharedstatedir=/ opt/hardhat/devkit/mips/fp_le/share --mandir=/opt/hardhat/devkit/mips/fp_le/ man --infodir=/opt/hardhat/devkit/mips/fp_le/info --program-transform-name=s,^,mips_fp_le-, --enable-cross --with-gxx-include-dir=${prefix}/mipsel-hardhat-linux/include/g++-v3 --enable-shared --enable-languages=c,c++ --enable-threads=posix --enable-__cxa_atexit --disable-multilib Thread model: posix gcc version 3.2.1 20020930 (MontaVista) =======================================
thanks for any help you can offer...(sorry this is maybe more of a tool related question, but monta vista has not been much help as of yet).
Mike ~
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