Calling a MIPS maintainer (was Re: GCC build failed for mips-elf with your patch on 2002-06-18T19:37:45Z.)

[Phil Edwards <phil at jaj dot com>]

On Tue, Jun 18, 2002 at 10:18:25PM +0000, GCC regression checker wrote:
> /tmp/ccGfgrTh.s:7081: Error: opcode not supported on this processor: R3000 (MIPS1) `ll $4,-4($3)'
> /tmp/ccGfgrTh.s:7083: Error: opcode not supported on this processor: R3000 (MIPS1) `sc $5,-4($3)'
> make[3]: *** [complex_io.lo] Error 1
> make[3]: Leaving directory `/anubis/mummy/tbox/mips-elf/build/mips-elf/libstdc++-v3/src'

Mea culpa, but I'd like a decision from the MIPS maintainers on what to do.

The regression checker doesn't keep the configure output (the screen output,
I mean, not the config.log) for the last good build, but in the libstdc++-v3
config, the build log currently says:

    ....
    CPU config directory is cpu/mips
    OS config directory is os/generic
    ....

and I'll bet that it used to say

    CPU config directory is cpu/generic
    OS config directory is os/generic

The problem is that we have a libstdc++-v3/config/cpu/mips/ directory,
but the shell fragements to use that directory were reverted.  (H.J. Lu
had #include'd a file, or something.)  So by default, mips used the generic
CPU settings, even though the configury files were still present.

Then, earlier today, I made the v3 configury "smarter" (sigh), and now
it will use cpu/mips for a mips target unless told otherwise.  (The file
doesn't tell it otherwise because the /previous/ version didn't, and I
was unaware that the mips CPU config directory was in fact unused.)


So, MIPS maintainers:  I can just override the default and force the generic
CPU settings for MIPS; this goes back to the way we were yesterday, but
note that the generic CPU atomicity routines aren't actually atomic, i.e.,
generic == not actually working.  The other choice is:  the file presently
in the MIPS directory can be fixed by one of you.  :-)  What should I do?


Phil

-- 
If ye love wealth greater than liberty, the tranquility of servitude greater
than the animating contest for freedom, go home and leave us in peace.  We seek
not your counsel, nor your arms.  Crouch down and lick the hand that feeds you;
and may posterity forget that ye were our countrymen.            - Samuel Adams