On May 28, 2009, at 12:52 PM, ext Ju-sung.Lee wrote:
hello! I have a mipsel-target and mipsel-toolchain. So I'd like to
cross-compile a library source using mipsel-toolchain.
but. I can't select CPU model in sb2-init commnad.
$ sb2-init -c "qemu-mipsel" mipsel-target mipsel-linux-gcc
work well!!! but I can't select a CPU model!.
$ sb2-init -c "qemu-mipsel -cpu 24Kf" mipsel-target mipsel-linux-gcc
mipsel-target doesn't exist!!
Failed to configure mipsel-target
The "-c" option can only be used to specify the qemu to be used, but
not any options.
Currently we don't have a way to give user-specified options for the
cpu transparency method, but it certainly sounds like a useful
feature. Could be used with qemu-arm as well.
Unfortunately I can't promise any quick improvements to this; sb2's
complete configuration system has been a target for redesign/
reimplementation (and will likely remain so in the near future), so we
probably wont get a proper enhancement to this before autumn (well, at
least not from us (Nokia))
But if you want to try fixing it yourself, the qemu command line is
built in lua_scripts/argvenvp.lua, in function
sb_execve_postprocess_cpu_transparency_executable.
It should be easy to extend it to add the two arguments that you need:
for a prototype, maybe something like using some environment variables
for the extra arguments, getting the parameter(s) with os.getenv() and
if it is != nil => insert to new_argv... This should be enough to get
it working.
Next, test it out by "sb2 sb2-show exec ./helloworld" to see how your
qemu is going to be executed.
Lauri
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