more on Re: sh-rtems and dwarf

[Joel Sherrill]

Nick Clifton wrote:
> 
> Hi Joel,

> Looking at tc-sh.c it appears that these have already been
> added. Certainly .file and .loc are supported in md_pseudo_table, so
> the probable answer is that gas/dwarf2dbg.c is being compiled without
> BFD_ASSEMBLER set.  My suggestion, try adding bfd_gas=yes to
> configure.in (and then regenerate configure and reconfigure/rebuild
> gas).

The patch (I did it by hand on my side) appears to be 
correct enough to get things to this point:

-DL_muldi3 -c ../../../cvs-objs/gcc/gcc/libgcc2.c -o libgcc/./_muldi3.o
/tmp/ccS7brxC.s: Assembler messages:
/tmp/ccS7brxC.s:495: Error: Cannot represent relocation type
BFD_RELOC_32
/tmp/ccS7brxC.s:499: Internal error!
Assertion failure in tc_gen_reloc at
../../../cvs-objs/binutils/src/gas/config/tc-sh.c line 3330.

so I added a "-S" and saved it as libgcc2.s.  Attached is
libgcc2.s.gz which produces an sh internal error this way:

 /usr2/test-gcc/install/sh-rtems/bin/as -o libgcc2.o  libgcc2.s
libgcc2.s: Assembler messages:
libgcc2.s:495: Error: Cannot represent relocation type BFD_RELOC_32
libgcc2.s:499: Internal error!
Assertion failure in tc_gen_reloc at
../../../cvs-objs/binutils/src/gas/config/tc-sh.c line 3330.
Please report this bug.

I don't know whether this is a gas or code generation problem in gcc
but since gas complains first, it goes to this list. :)

> Cheers
>         Nick
> 
> Possible (but untested) patch:
> 
> Index: gas/configure.in
> ===================================================================
> RCS file: /cvs/src//src/gas/configure.in,v
> retrieving revision 1.57
> diff -p -r1.57 configure.in
> *** configure.in        2001/02/10 22:25:10     1.57
> --- configure.in        2001/02/14 18:42:08
> *************** changequote([,])dnl
> *** 384,393 ****
> 
>         sh-*-linux*)        fmt=elf em=linux ;;
>         sh-*-elf*)          fmt=elf ;;
> !       sh-*-coff*)           fmt=coff ;;
>         sh-*-pe*)             fmt=coff em=pe bfd_gas=yes;;
>         sh-*-rtemself*)       fmt=elf ;;
> !       sh-*-rtems*)        fmt=coff ;;
> 
>         ns32k-pc532-mach* | ns32k-pc532-ux*)    fmt=aout em=pc532mach ;;
>         ns32k-pc532-netbsd* | ns32k-pc532-lites*)  fmt=aout em=nbsd532 ;;
> --- 384,393 ----
> 
>         sh-*-linux*)        fmt=elf em=linux ;;
>         sh-*-elf*)          fmt=elf ;;
> !       sh-*-coff*)           fmt=coff bfd_gas=yes;;
>         sh-*-pe*)             fmt=coff em=pe bfd_gas=yes;;
>         sh-*-rtemself*)       fmt=elf ;;
> !       sh-*-rtems*)        fmt=coff bfd_gas=yes;;
> 
>         ns32k-pc532-mach* | ns32k-pc532-ux*)    fmt=aout em=pc532mach ;;
>         ns32k-pc532-netbsd* | ns32k-pc532-lites*)  fmt=aout em=nbsd532 ;;

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel@OARcorp.com                 On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
   Support Available             (256) 722-9985
libgcc2.s.gz

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