software_single_step.
"gdb_assert.h". (mips64obsd_sigframe_init): New function. (mips64obsd_sigframe): New variable. (mips64obsd_init_abi): Add comments. Prepend mips64obsd_sigrame unwinder. * Makefile.in (mips64obsd-tdep.o): Update dependencies.
* configure.host: Add mips64*-*-openbsd*. * configure.tgt: Add mips64*-*-openbsd*. * Makefile.in (ALLDEPFILES): Add mips64obsd-nat.o, mips64obsd-tdep.c. (mips64obsd-nat.o, mips64obsd-tdep.o): New dependecies. * config/mips/obsd64.mh, config/mips/obsd64.mt: New files.