gas crashes on IRIX 5.2

[Alexandre Oliva]

On Dec  3, 1999, hjl@lucon.org (H.J. Lu) wrote:

>> FYI, there may be something wrong on AIX4.1.5.0/rs6000's assembler of
>> release 2.9.5.0.21, that isn't wrong in binutils CVS.

> I didn't touch anything in PPC. Please try 2.9.5.0.22. The bug
> may be fixed from the CVS update.

Nope, I spoke too soon.  The bug has just come up with CVS binutils
too :-(

> If you can send me the asm code and tell me how to configure the
> cross assembler, I will fix it.

Thanks, but it won't build as a cross toolchain :-(

The exact error message is:

        test x"yes" != xyes ||  /tmp/install-gnu-gcc-2.95.2-libg++-2.8.1.3-libgcj-2.95.1-visconde-11094/libg++-2.8.1.3/gcc/xgcc -B/tmp/install-gnu-gcc-2.95.2-libg++-2.8.1.3-libgcj-2.95.1-visconde-11094/libg++-2.8.1.3/gcc/ -B/n/gnu/gcc-2.95.2-libg++-2.8.1.3-libgcj-2.95.1/powerpc-ibm-aix4.1.5.0/bin/ -c -g -O2 -fno-implicit-templates -I. -I. -nostdinc++   streambuf.cc -o pic/streambuf.o
/tmp/ccJPpGNZ.s: Assembler messages:
/tmp/ccJPpGNZ.s:1971: Error: Line numbers must be positive integers

/tmp/ccJPpGNZ.s:1983: Error: Line numbers must be positive integers


The problem is that gcc 2.95.2, configured --with-gnu-as
--with-gnu-ld, is generating `.line 0' debugging directives.  


It's most definitely a bug in gcc, since the code in
gas/config/obj-coff.c says line 0 is used as an end marker.  The
following patch causes gas to accept `.line 0', as does the native
assembler: