i386-elf/coff cross build

[Alagu Sankar]

 
Thanks for your response.  But it doesnt seem to solve my 
problem.  Let me give a detailed output of the make error so that you can 
understand it better.   It clearly says that it uses 
'ar' for target i.e. i386-coff-ar.  Moreover the error says that it is 
from the assembler.  There can be some other solution for this.  
Can you brief it if you remember?
 
I did explore to some more extend.  The xgcc compiler generates an 
assembly file for libgcc2.c file with _floatdidf option, which contains a 
'.align  3' directive and hence the 'alignment not power of 2' error.  
But i dont understand why the compiler generates this alignment and how to 
overcome it.
 
Any help is appreciated.
 
--------------------------
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 
${name}; \   /home/alagu/buildx86/buildgcc/gcc/xgcc 
-B/home/alagu/buildx86/buildgcc/gcc/ -B/usr/x86gcc/i386-coff/bin/ 
-I/usr/x86gcc/i386-coff/include -O2  
-DCROSS_COMPILE-DIN_GCC     -g -O2 -I./include   
-g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc  -I. 
-I/home/alagu/gcc-2.95.2/gcc -I/home/alagu/gcc-2.95.2/gcc/config 
-I/home/alagu/gcc-2.95.2/gcc/../include -c -DL${name} 
\        /home/alagu/gcc-2.95.2/gcc/libgcc2.c 
-o ${name}.o; \   if [ $? -eq 0 ] ; then true; else exit 1; fi; 
\   i386-coff-ar rc tmplibgcc2.a ${name}.o; \   rm -f ${name}.o; 
\ done _muldi3 _divdi3 _moddi3
_divdi3 _moddi3 _udivdi3 _umoddi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 _ffsdi2 _udiv_w_sdiv _udivmoddi4 _cmpdi2 _ucmpdi2 _floatdidf /tmp/cc6hpKn9.s: 
Assembler messages: /tmp/cc6hpKn9.s:113: Error: Alignment not a power of 
2 make[1]: *** [libgcc2.a] Error 1 make[1]: Leaving directory 
`/home/alagu/buildx86/buildgcc/gcc' make: *** [cross] Error 2
----------------------------------------------

  ----- Original Message ----- 
  From: 
  b 
  gonzales 
  To: Alagu Sankar ; crossgcc@sourceware.cygnus.com 
  Sent: Thursday, March 30, 2000 7:04 
  PM
  Subject: Re: i386-elf/coff cross 
  build
  
  I encountered this problem 
before.
   
  What I did was I copied /bin/ar into one of the bin 
  directory of the cross compiler.
   
  Try examining the make file. There is a line 
  there that references the ar program.
   
  I'm sorry that I cannot give the details because  I 
  have no notes about it.
   
  Hope this helps.
   
   
  
    -----Original Message----- From: 
    Alagu Sankar < alagu@nettaxi.com > To: crossgcc@sourceware.cygnus.com 
    < crossgcc@sourceware.cygnus.com > Date: 
    Thursday, March 30, 2000 3:17 PM Subject: i386-elf/coff cross 
    build
    
    Hi all,
     
    I am in the process of building cross compiler 
    tools for intel 386 embedded target with a custom RTOS.  Has anybody 
    succeded in installing the i[3456]-elf or i[3456]-coff gcc cross compilers 
    with linux or windows(cygwin) host. I'm seeing lot of failure stories in 
    building i386 cross tools in the mailing list
     
    I am using gcc-2.95.2 with newlib-1.8.2.  
    I am able to build bin utils for i386-coff successfully. But when i try to 
    install gcc i am getting the follwoing errors ( I tried with both cygwin and linux host but the result is 
    same).  Any help in solving the problem is very much 
    appreciated.
     
    -------------------------------------------------------------------------
    _ffsdi2 _udiv_w_sdiv _udivmoddi4 _cmpdi2 _ucmpdi2 _floatdidf /tmp/ccQYtSN7.s: 
    Assembler messages: /tmp/ccQYtSN7.s:113: Error: Alignment not a power of 
    2 make[1]: *** [libgcc2.a] Error 1 make[1]: Leaving directory 
    `/home/alagu/buildx86/buildgcc/gcc' make: *** [cross] Error 2   
    
    ---------------------------------------------------------------------------
     
    I was successfull in creating powerpc-eabi and 
    arm-coff for both the host and obviously i follow the same procedure for 
    building i386-coff also.
     
    I have got one more question. Does anybody 
    know, like.. what are the issues in using gcc with a custom 
    developed RTOS (not RTEMS or eCos) and its own C library routines for am 
    embedded target.
     
    Thanx in anticipation
     
    Alagu 
  Sankar