GDB HEAD (partly) broken for GNU/Hurd

[Thomas Schwinge <tschwinge at gnu dot org>]

Hello!

Some of the changes that have been installed between gdb_6_8-branch and
HEAD cause GDB to no longer function properly on GNU/Hurd under certain
circumstances.

    tschwinge@zoobar:~/tmp/gdb/HEAD.build $ gdb/gdb ~/tmp/n1/hurd/ext2fs.static
    GNU gdb 6.8.0.20081008-cvs
    [...]
    This GDB was configured as "i386-unknown-gnu0.3"...
    (gdb) r
    Starting program: /media/data/home/tschwinge/tmp/n1/hurd/ext2fs.static
    [New thread 8112.1]
    [New thread 8112.2]
    [New thread 8112.3]
    [New thread 8112.4]
    [New thread 8112.5]
    
    Program received signal SIGSEGV, Segmentation fault.
    convert_options (argp=0x813f0bc, parent=0x0, parent_index=0, group=0x81712e8, cvt=0x101fad0) at argp.h:579
    579     argp.h: No such file or directory.
            in argp.h

    tschwinge@zoobar:~/tmp/gdb/HEAD.build $ gdb/gdb ~/tmp/n1/hurd/ext2fs.static
    GNU gdb (GDB) 6.8.50.20081009-cvs
    [...]
    (gdb) r
    Starting program: /media/data/home/tschwinge/tmp/n1/hurd/ext2fs.static
    Can't fetch registers from thread bogus thread id 1: No such thread

Both have been built (natively) on the same up-to-date Debian GNU/Hurd
system.

For easy reproduction, I can publish the faulting binary.


Regards,
 Thomas

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