nanogui: Re: [uClinux-dev] Re: uClinux/Microwindows Compilation problems - Urgent...help...
Subject:
Re: [uClinux-dev] Re: uClinux/Microwindows Compilation problems - Urgent...help...
From:
"Sridharan Subramanian" ####@####.####
Date:
2 Feb 2001 19:32:17 -0000
Message-Id: <3A7B0BAB.6E530EEE@email.sps.mot.com>
Erwin,
Yes, we used the latest PIC patch. The patch solved the .text problems that we were having,
but as you mention below, we still have the data+bss problem.
I'm still a little confused about the 32K limitation. My understanding is that the PRISMA
platform is based on the 68020 (initially) and used the elf tools to build Microwindows for
uClinux. Is this 32K limitation rooted in the instruction set for the 68328? Does the 68020
have instructions that can be used to access data+bss larger than 32K?
Would the elf tool set be a better choice than the pic-coff?
Why the name "a5world"?
For the error below, "what" and "how" would I modify to correct the problem? Would we need to
just modify malpha.c or would we need to go into some of the libraries?
m68k-pic-coff-gcc -I. -I/opt/sri/microwindows/work/microwin/src/include -m68000 -Wa, -m68000
-DCONFIG_DRAGONBALL -Dlinux -D__linux__ -Dunix -DEMBED -DNANOX=1 -O2 -msoft-float -fPIC
-L/opt/sri/microwindows/work/microwin/src/lib malpha.o -o
/opt/sri/microwindows/work/microwin/src/bin/malpha
-lmwin -lmwinlib -lmwobjects -lmwengine -lmwdrivers -lmwfonts -lmwimages
/opt/uClinux/gnu/m68k-pic-coff/bin/ld: region a5world is full
Sri.
Erwin Authried wrote:
> Don't despair, are you sure that you have used the latest version of my patch?
> There was a version that tried to fix the buggy const handling of the compiler,
> but that didn't work as excpected, and was removed again some time later.
> Make sure you don't use a patch from before July 2000. (http://uclinux.home.at/pic32/)
>
> The PIC patch only solves problems with the text section.
> The message "a5world full" says that your data+bss is larger than 32KB,
> you will have to use malloc to reduce the size of variables.
> The message "word overflow" is generated when the compiler generates
> offsets that get too large to fit into 16 bit words, for example in huge switch statements,
> -fPIC doesn't help in this case, either.
>
> Happy hacking
>
> -Erwin
>
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