Newbie can't build linux cross-compiler for solaris

[David Thompson]

Hi Tom, thanks for the reply!  I studied it for a 
few
minutes, 1st let me make sure I point out what I'm 
trying
to do, because (I think) you're suggesting a radically 
new
& different approach.
 
First, I want a gcc cross compiler that runs on Solaris 
but
produces Linux 
executables.
 
So, I've been trying to build this cross compiler on 
Solaris,
since that is where it must run, but it would seem you 
are
suggesting I build this cross compiler 
on the Linux 
box
itself.
 
Is that correct?  That's a completely new approach 
for me,
and since I *do* have a Linux box to play with, I can 
try
building it from Linux ... Hmmm 
...

  -----Original Message----- From: 
  Tom.Williams@diversifiedsoftware.com 
  [mailto:Tom.Williams@diversifiedsoftware.com] Sent: Thursday, August 
  30, 2001 3:38 PM To: David.Thompson@efi.com Subject: Re: 
  Newbie can't build linux cross-compiler for 
  solaris Here is a basic 
  procedure you can try: 1. Tar up 
  the Solaris header files in /usr/include: $ tar cf headers.tar /usr/include 2. Tar up the libs you will need to use the cross-compiler: 
  $ tar cf libs.tar /usr/lib/libc.a 
  /usr/lib/libC.a /usr/lib/libm.a ( your 
  list may vary.  Try to pick the handful of libs you think you will need. 
   At the very minimum, get the C (libc.a and libC.a (I think) and math 
  (libm.a)) 3. Transfer these files 
  to the Linux box AT the LINUX 
  box: 4. Extract headers.tar and 
  libs.tar somewhere.  I recommend making a directory (like crossdata) and 
  untar those files in the crossdata directory.  That will create 
  crossdata/usr/include/.... and crossdata/usr/lib/...... 5. Obtain binutils2.11.2.tar.gz (from sourceware 
  http://sources.redhat.com/binutils/) and gcc-2.95.3 from the gcc guys 
  (http://gcc.gnu.org/) 6. Build 
  bintuils: PATHTOBINUTILS/configure  --prefix={installtion directory 
  for cross tools} --host=$YOURHOST --target=$YOURTARGET  , where 
  YOURHOST={hw 
  platform}-linux-gnu and 
  YOURTARGET=sparc-sun-solaris2.7 (or 2.6) make Make install 7.Build GCC: PATHTOGCCSRC/configure --prefix={installation 
  directory for cross tools} --host=YOURHOST --target=YOURTARGET 
  --with-gnu-ld --with-gnu-as --with-headers={place where headers.tar was 
  extracted} --with-libs={place where libs.tar was extracted} make make 
  install If you have problems with 
  libgcc1.a not being properly built, try the steps below: 
  On YOURTARGET: Build binutils, at a minimum copy 
  all executable to OBJECTDIR on target configure gcc 
  with: $PATHTOGCCSRC/configure --host=$YOURHOST --target=$YOURTARGET 
  --with-gnu-ld --with-gnu-as make libgcc1.a       
   #Now save libgcc1.a.  This is how you get this file. make 
  distclean $PATHTOGCCSRC/configure make enquire enquire -f > 
  float.h        # you might need this enquire -l > 
  limits.h        # and this I first went through at least 1.5 years ago and have since then 
  nuked my cross compiler.  This procedure will probably NOT work the first 
  time, but with patience it can be tweaked to work. Let me know how far I get and hopefully, I will have mine built to 
  answer any questions you might have. Good 
  luck! Peace...... 
  Tom
  
  My DVD 
  Collection 
  
  
    
    
      
      David Thompson 
        <David.Thompson@efi.com> Sent by: crossgcc-owner@sources.redhat.com 
        08/30/01 02:50 PM 
                      To:     
           'crossgcc' <crossgcc@sourceware.cygnus.com> 
                cc:   
                
              Subject:        Newbie can't 
        build linux cross-compiler for 
  solaris Hi there, 
  I am a newbie at building a cross 
  compiler so I'm trying to read everything I can find, but I've 
  failed in all my attempts to build a Linux gcc cross-compiler 
  than runs on Solaris.  Here is my simple 
  script, 
   #!/bin/ksh GCC=gcc-2.95.3 
  BINUTILS=binutils-2.10.1 
  TARGET=i686-pc-linux-gnu 
  SRCDIR=/home/davidt/gnu/src/sun BINDIR=/home/davidt/gnu/bin/sun 
   cd $SRCDIR mkdir build-binutils build-gcc 
   # configure, build and install 
  binutils cd build-binutils ../$BINUTILS/configure --target=$TARGET --prefix=$BINDIR 
  -v make all install 
   # configure, build and install 
  gcc cd ../build-gcc ../$GCC/configure --target=$TARGET --prefix=$BINDIR -v make all install 
  I have untarred the packages into 
  /home/davidt/gnu/bin/sun, 
  and binutils builds fine. 
   The error I get is from building gcc, here is the 
  [slightly formatted] error output, 
  
   for name in _muldi3 _divdi3 
  _moddi3 _udivdi3 _umoddi3 _negdi2 _lshrdi3 \  _ashldi3 _ashrdi3 _ffsdi2 _udiv_w_sdiv _udivmoddi4 _cmpdi2 
  _ucmpdi2 \  _floatdidf _floatdisf _fixunsdfsi 
  _fixunssfsi _fixunsdfdi _fixdfdi \ 
   _fixunssfdi _fixsfdi 
  _fixxfdi _fixunsxfdi _floatdixf _fixunsxfsi \  _fixtfdi _fixunstfdi _floatditf __gcc_bcmp _varargs __dummy 
  _eprintf \  _bb _shtab _clear_cache _trampoline 
  __main _exit _ctors _pure; \ 
  do \   echo ${name}; \ 
    
   /home/davidt/gnu/src/sun/build-gcc/gcc/xgcc \     -B/home/davidt/gnu/src/sun/build-gcc/gcc/ 
  \     
  -B/home/davidt/gnu/bin/sun/i686-pc-linux-gnu/bin/ \     -I/home/davidt/gnu/bin/sun/i686-pc-linux-gnu/include 
  -O2  \     -DCROSS_COMPILE -DIN_GCC 
    -DSVR4  -g -O2 -I./include  \     -fPIC -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED 
  \     -I. -I../../gcc-2.95.3/gcc 
  -I../../gcc-2.95.3/gcc/config \ 
      
  -I../../gcc-2.95.3/gcc/../include -c -DL${name} \     ../../gcc-2.95.3/gcc/libgcc2.c -o ${name}.o; 
  \   if [ $? -eq 0 ] ; then true; else 
  exit 1; fi; \   i686-pc-linux-gnu-ar rc tmplibgcc2.a 
  ${name}.o; \   rm -f ${name}.o; \ done _muldi3 ../../gcc-2.95.3/gcc/libgcc2.c:41: stdlib.h: No such file or 
  directory ../../gcc-2.95.3/gcc/libgcc2.c:42: unistd.h: 
  No such file or directory 
  make[1]: *** [libgcc2.a] Error 
  1 make[1]: Leaving directory 
  `/home/davidt/gnu/src/sun/build-gcc/gcc' make: *** [all-gcc] 
  Error 2 
  I don't understand why stdlib.h & 
  unistd.h cannot be found.  I need help, what am I doing 
  wrong?  Any advice or URLs that would help me (the above script is from http://www.objsw.com/CrossGCC ) would be extremely 
  appreciated. 
  -- David Thompson david.thompson@efi.com 
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