This commit was manufactured by cvs2svn to create branchsid-20020905-branchpoint sid-20020905-branch

'sid-20020905-branch'. Sprout from gdb_5_3-branch 2002-09-03 22:29:15 UTC nobody 'This commit was manufactured by cvs2svn to create branch 'gdb_5_3-branch'.' Cherrypick from master 2002-09-07 00:00:04 UTC Alan Modra <amodra@gmail.com> 'daily update': bfd/ChangeLog bfd/config.bfd bfd/version.h include/ChangeLog include/dis-asm.h libiberty/ChangeLog libiberty/regex.c opcodes/ChangeLog opcodes/disassemble.c opcodes/ppc-dis.c opcodes/ppc-opc.c Delete: djunpack.bat gdb/CONTRIBUTE gdb/COPYING gdb/ChangeLog gdb/ChangeLog-1990 gdb/ChangeLog-1991 gdb/ChangeLog-1992 gdb/ChangeLog-1993 gdb/ChangeLog-1994 gdb/ChangeLog-1995 gdb/ChangeLog-1996 gdb/ChangeLog-1997 gdb/ChangeLog-1998 gdb/ChangeLog-1999 gdb/ChangeLog-2000 gdb/ChangeLog-2001 gdb/ChangeLog-3.x gdb/MAINTAINERS gdb/Makefile.in gdb/NEWS gdb/PROBLEMS gdb/README gdb/TODO gdb/a68v-nat.c gdb/abug-rom.c gdb/acconfig.h gdb/acinclude.m4 gdb/aclocal.m4 gdb/ada-exp.y gdb/ada-lang.c gdb/ada-lang.h gdb/ada-lex.l gdb/ada-tasks.c gdb/ada-typeprint.c gdb/ada-valprint.c gdb/aix-thread.c gdb/alpha-linux-tdep.c gdb/alpha-nat.c gdb/alpha-osf1-tdep.c gdb/alpha-tdep.c gdb/alpha-tdep.h gdb/alphabsd-nat.c gdb/alphabsd-tdep.c gdb/alphabsd-tdep.h gdb/alphafbsd-tdep.c gdb/alphanbsd-tdep.c gdb/annotate.c gdb/annotate.h gdb/arc-tdep.c gdb/arch-utils.c gdb/arch-utils.h gdb/arm-linux-nat.c gdb/arm-linux-tdep.c gdb/arm-tdep.c gdb/arm-tdep.h gdb/armnbsd-nat.c gdb/armnbsd-tdep.c gdb/avr-tdep.c gdb/ax-gdb.c gdb/ax-gdb.h gdb/ax-general.c gdb/ax.h gdb/bcache.c gdb/bcache.h gdb/blockframe.c gdb/breakpoint.c gdb/breakpoint.h gdb/buildsym.c gdb/buildsym.h gdb/builtin-regs.c gdb/builtin-regs.h gdb/c-exp.y gdb/c-lang.c gdb/c-lang.h gdb/c-typeprint.c gdb/c-valprint.c gdb/call-cmds.h gdb/ch-exp.c gdb/ch-lang.c gdb/ch-lang.h gdb/ch-typeprint.c gdb/ch-valprint.c gdb/cli-out.c gdb/cli-out.h gdb/cli/cli-cmds.c gdb/cli/cli-cmds.h gdb/cli/cli-decode.c gdb/cli/cli-decode.h gdb/cli/cli-dump.c gdb/cli/cli-dump.h gdb/cli/cli-script.c gdb/cli/cli-script.h gdb/cli/cli-setshow.c gdb/cli/cli-setshow.h gdb/cli/cli-utils.c gdb/cli/cli-utils.h gdb/coff-solib.c gdb/coff-solib.h gdb/coffread.c gdb/command.h gdb/complaints.c gdb/complaints.h gdb/completer.c gdb/completer.h gdb/config.in gdb/config/alpha/alpha-linux.mh gdb/config/alpha/alpha-linux.mt gdb/config/alpha/alpha-osf1.mh gdb/config/alpha/alpha-osf1.mt gdb/config/alpha/alpha-osf2.mh gdb/config/alpha/alpha-osf3.mh gdb/config/alpha/alpha.mt gdb/config/alpha/fbsd.mh gdb/config/alpha/fbsd.mt gdb/config/alpha/nbsd.mh gdb/config/alpha/nbsd.mt gdb/config/alpha/nm-fbsd.h gdb/config/alpha/nm-linux.h gdb/config/alpha/nm-nbsd.h gdb/config/alpha/nm-osf.h gdb/config/alpha/nm-osf2.h gdb/config/alpha/nm-osf3.h gdb/config/alpha/tm-alpha.h gdb/config/alpha/tm-alphalinux.h gdb/config/alpha/tm-fbsd.h gdb/config/alpha/tm-nbsd.h gdb/config/alpha/xm-alphalinux.h gdb/config/alpha/xm-alphaosf.h gdb/config/arc/arc.mt gdb/config/arc/tm-arc.h gdb/config/arm/embed.mt gdb/config/arm/linux.mh gdb/config/arm/linux.mt gdb/config/arm/nbsd.mt gdb/config/arm/nbsdaout.mh gdb/config/arm/nbsdelf.mh gdb/config/arm/nm-linux.h gdb/config/arm/nm-nbsd.h gdb/config/arm/nm-nbsdaout.h gdb/config/arm/tm-arm.h gdb/config/arm/tm-embed.h gdb/config/arm/tm-linux.h gdb/config/arm/tm-wince.h gdb/config/arm/wince.mt gdb/config/arm/xm-linux.h gdb/config/arm/xm-nbsd.h gdb/config/avr/avr.mt gdb/config/cris/cris.mt gdb/config/cris/tm-cris.h gdb/config/d10v/d10v.mt gdb/config/d30v/d30v.mt gdb/config/d30v/tm-d30v.h gdb/config/djgpp/README gdb/config/djgpp/config.sed gdb/config/djgpp/djcheck.sh gdb/config/djgpp/djconfig.sh gdb/config/djgpp/fnchange.lst gdb/config/fr30/fr30.mt gdb/config/fr30/tm-fr30.h gdb/config/frv/frv.mt gdb/config/frv/tm-frv.h gdb/config/h8300/h8300.mt gdb/config/h8300/tm-h8300.h gdb/config/h8500/h8500.mt gdb/config/h8500/tm-h8500.h gdb/config/i386/cygwin.mh gdb/config/i386/cygwin.mt gdb/config/i386/embed.mt gdb/config/i386/fbsd.mh gdb/config/i386/fbsd.mt gdb/config/i386/gdbserve.mt gdb/config/i386/go32.mh gdb/config/i386/go32.mt gdb/config/i386/i386aix.mh gdb/config/i386/i386aix.mt gdb/config/i386/i386aout.mt gdb/config/i386/i386bsd.mh gdb/config/i386/i386bsd.mt gdb/config/i386/i386dgux.mh gdb/config/i386/i386gnu.mh gdb/config/i386/i386gnu.mt gdb/config/i386/i386lynx.mh gdb/config/i386/i386lynx.mt gdb/config/i386/i386m3.mh gdb/config/i386/i386m3.mt gdb/config/i386/i386mach.mh gdb/config/i386/i386mk.mh gdb/config/i386/i386mk.mt gdb/config/i386/i386nw.mt gdb/config/i386/i386os9k.mt gdb/config/i386/i386sco.mh gdb/config/i386/i386sco4.mh gdb/config/i386/i386sco5.mh gdb/config/i386/i386sco5.mt gdb/config/i386/i386sol2.mh gdb/config/i386/i386sol2.mt gdb/config/i386/i386v.mh gdb/config/i386/i386v.mt gdb/config/i386/i386v32.mh gdb/config/i386/i386v4.mh gdb/config/i386/i386v4.mt gdb/config/i386/i386v42mp.mh gdb/config/i386/i386v42mp.mt gdb/config/i386/linux.mh gdb/config/i386/linux.mt gdb/config/i386/nbsd.mt gdb/config/i386/nbsdaout.mh gdb/config/i386/nbsdelf.mh gdb/config/i386/ncr3000.mh gdb/config/i386/ncr3000.mt gdb/config/i386/nm-cygwin.h gdb/config/i386/nm-fbsd.h gdb/config/i386/nm-go32.h gdb/config/i386/nm-i386.h gdb/config/i386/nm-i386aix.h gdb/config/i386/nm-i386bsd.h gdb/config/i386/nm-i386gnu.h gdb/config/i386/nm-i386lynx.h gdb/config/i386/nm-i386mach.h gdb/config/i386/nm-i386sco.h gdb/config/i386/nm-i386sco4.h gdb/config/i386/nm-i386sco5.h gdb/config/i386/nm-i386sol2.h gdb/config/i386/nm-i386v.h gdb/config/i386/nm-i386v4.h gdb/config/i386/nm-i386v42mp.h gdb/config/i386/nm-linux.h gdb/config/i386/nm-m3.h gdb/config/i386/nm-nbsd.h gdb/config/i386/nm-nbsdaout.h gdb/config/i386/nm-obsd.h gdb/config/i386/nm-ptx4.h gdb/config/i386/nm-symmetry.h gdb/config/i386/nm-x86-64linux.h gdb/config/i386/obsd.mh gdb/config/i386/ptx.mh gdb/config/i386/ptx.mt gdb/config/i386/ptx4.mh gdb/config/i386/ptx4.mt gdb/config/i386/symmetry.mh gdb/config/i386/symmetry.mt gdb/config/i386/tm-cygwin.h gdb/config/i386/tm-fbsd.h gdb/config/i386/tm-go32.h gdb/config/i386/tm-i386.h gdb/config/i386/tm-i386aix.h gdb/config/i386/tm-i386bsd.h gdb/config/i386/tm-i386lynx.h gdb/config/i386/tm-i386m3.h gdb/config/i386/tm-i386mk.h gdb/config/i386/tm-i386os9k.h gdb/config/i386/tm-i386sol2.h gdb/config/i386/tm-i386v4.h gdb/config/i386/tm-i386v42mp.h gdb/config/i386/tm-linux.h gdb/config/i386/tm-nbsd.h gdb/config/i386/tm-ptx.h gdb/config/i386/tm-ptx4.h gdb/config/i386/tm-symmetry.h gdb/config/i386/tm-vxworks.h gdb/config/i386/tm-x86-64linux.h gdb/config/i386/vxworks.mt gdb/config/i386/x86-64linux.mh gdb/config/i386/x86-64linux.mt gdb/config/i386/xm-cygwin.h gdb/config/i386/xm-go32.h gdb/config/i386/xm-i386.h gdb/config/i386/xm-i386aix.h gdb/config/i386/xm-i386bsd.h gdb/config/i386/xm-i386m3.h gdb/config/i386/xm-i386mach.h gdb/config/i386/xm-i386mk.h gdb/config/i386/xm-i386sco.h gdb/config/i386/xm-i386v.h gdb/config/i386/xm-i386v32.h gdb/config/i386/xm-i386v4.h gdb/config/i386/xm-nbsd.h gdb/config/i386/xm-ptx.h gdb/config/i386/xm-ptx4.h gdb/config/i386/xm-symmetry.h gdb/config/i960/mon960.mt gdb/config/i960/nindy960.mt gdb/config/i960/tm-i960.h gdb/config/i960/tm-mon960.h gdb/config/i960/tm-nindy960.h gdb/config/i960/tm-vx960.h gdb/config/i960/vxworks960.mt gdb/config/ia64/aix.mh gdb/config/ia64/aix.mt gdb/config/ia64/ia64.mt gdb/config/ia64/linux.mh gdb/config/ia64/linux.mt gdb/config/ia64/nm-aix.h gdb/config/ia64/nm-linux.h gdb/config/ia64/tm-aix.h gdb/config/ia64/tm-ia64.h gdb/config/ia64/tm-linux.h gdb/config/ia64/xm-aix.h gdb/config/ia64/xm-linux.h gdb/config/m32r/m32r.mt gdb/config/m32r/tm-m32r.h gdb/config/m68hc11/m68hc11.mt gdb/config/m68k/3b1.mh gdb/config/m68k/3b1.mt gdb/config/m68k/apollo68b.mh gdb/config/m68k/apollo68b.mt gdb/config/m68k/apollo68v.mh gdb/config/m68k/cisco.mt gdb/config/m68k/delta68.mh gdb/config/m68k/delta68.mt gdb/config/m68k/dpx2.mh gdb/config/m68k/dpx2.mt gdb/config/m68k/es1800.mt gdb/config/m68k/hp300bsd.mh gdb/config/m68k/hp300bsd.mt gdb/config/m68k/hp300hpux.mh gdb/config/m68k/hp300hpux.mt gdb/config/m68k/linux.mh gdb/config/m68k/linux.mt gdb/config/m68k/m68klynx.mh gdb/config/m68k/m68klynx.mt gdb/config/m68k/m68kv4.mh gdb/config/m68k/m68kv4.mt gdb/config/m68k/monitor.mt gdb/config/m68k/nbsdaout.mh gdb/config/m68k/nbsdaout.mt gdb/config/m68k/nm-apollo68b.h gdb/config/m68k/nm-apollo68v.h gdb/config/m68k/nm-delta68.h gdb/config/m68k/nm-dpx2.h gdb/config/m68k/nm-hp300bsd.h gdb/config/m68k/nm-hp300hpux.h gdb/config/m68k/nm-linux.h gdb/config/m68k/nm-m68klynx.h gdb/config/m68k/nm-nbsd.h gdb/config/m68k/nm-nbsdaout.h gdb/config/m68k/nm-sun2.h gdb/config/m68k/nm-sun3.h gdb/config/m68k/nm-sysv4.h gdb/config/m68k/os68k.mt gdb/config/m68k/st2000.mt gdb/config/m68k/sun2os3.mh gdb/config/m68k/sun2os3.mt gdb/config/m68k/sun2os4.mh gdb/config/m68k/sun2os4.mt gdb/config/m68k/sun3os3.mh gdb/config/m68k/sun3os3.mt gdb/config/m68k/sun3os4.mh gdb/config/m68k/sun3os4.mt gdb/config/m68k/tm-3b1.h gdb/config/m68k/tm-apollo68b.h gdb/config/m68k/tm-cisco.h gdb/config/m68k/tm-delta68.h gdb/config/m68k/tm-dpx2.h gdb/config/m68k/tm-es1800.h gdb/config/m68k/tm-hp300bsd.h gdb/config/m68k/tm-hp300hpux.h gdb/config/m68k/tm-linux.h gdb/config/m68k/tm-m68k.h gdb/config/m68k/tm-m68klynx.h gdb/config/m68k/tm-m68kv4.h gdb/config/m68k/tm-mac.h gdb/config/m68k/tm-monitor.h gdb/config/m68k/tm-nbsd.h gdb/config/m68k/tm-os68k.h gdb/config/m68k/tm-st2000.h gdb/config/m68k/tm-sun2.h gdb/config/m68k/tm-sun2os4.h gdb/config/m68k/tm-sun3.h gdb/config/m68k/tm-sun3os4.h gdb/config/m68k/tm-vx68.h gdb/config/m68k/vxworks68.mt gdb/config/m68k/xm-3b1.h gdb/config/m68k/xm-apollo68b.h gdb/config/m68k/xm-apollo68v.h gdb/config/m68k/xm-delta68.h gdb/config/m68k/xm-dpx2.h gdb/config/m68k/xm-hp300bsd.h gdb/config/m68k/xm-hp300hpux.h gdb/config/m68k/xm-linux.h gdb/config/m68k/xm-m68k.h gdb/config/m68k/xm-m68kv4.h gdb/config/m68k/xm-nbsd.h gdb/config/m68k/xm-sun2.h gdb/config/m68k/xm-sun3.h gdb/config/m68k/xm-sun3os4.h gdb/config/m88k/delta88.mh gdb/config/m88k/delta88.mt gdb/config/m88k/delta88v4.mh gdb/config/m88k/delta88v4.mt gdb/config/m88k/m88k.mh gdb/config/m88k/m88k.mt gdb/config/m88k/nm-delta88v4.h gdb/config/m88k/nm-m88k.h gdb/config/m88k/tm-delta88.h gdb/config/m88k/tm-delta88v4.h gdb/config/m88k/tm-m88k.h gdb/config/m88k/xm-delta88.h gdb/config/m88k/xm-delta88v4.h gdb/config/m88k/xm-dgux.h gdb/config/mcore/mcore.mt gdb/config/mips/bigmips.mt gdb/config/mips/bigmips64.mt gdb/config/mips/decstation.mh gdb/config/mips/decstation.mt gdb/config/mips/embed.mt gdb/config/mips/embed64.mt gdb/config/mips/embedl.mt gdb/config/mips/embedl64.mt gdb/config/mips/irix3.mh gdb/config/mips/irix3.mt gdb/config/mips/irix4.mh gdb/config/mips/irix5.mh gdb/config/mips/irix5.mt gdb/config/mips/irix6.mh gdb/config/mips/irix6.mt gdb/config/mips/linux.mh gdb/config/mips/linux.mt gdb/config/mips/littlemips.mh gdb/config/mips/littlemips.mt gdb/config/mips/mipsm3.mh gdb/config/mips/mipsm3.mt gdb/config/mips/mipsv4.mh gdb/config/mips/mipsv4.mt gdb/config/mips/nbsd.mh gdb/config/mips/nbsd.mt gdb/config/mips/news-mips.mh gdb/config/mips/nm-irix3.h gdb/config/mips/nm-irix4.h gdb/config/mips/nm-irix5.h gdb/config/mips/nm-irix6.h gdb/config/mips/nm-linux.h gdb/config/mips/nm-mips.h gdb/config/mips/nm-nbsd.h gdb/config/mips/nm-news-mips.h gdb/config/mips/nm-riscos.h gdb/config/mips/riscos.mh gdb/config/mips/tm-bigmips.h gdb/config/mips/tm-bigmips64.h gdb/config/mips/tm-embed.h gdb/config/mips/tm-embed64.h gdb/config/mips/tm-embedl.h gdb/config/mips/tm-embedl64.h gdb/config/mips/tm-irix3.h gdb/config/mips/tm-irix5.h gdb/config/mips/tm-irix6.h gdb/config/mips/tm-linux.h gdb/config/mips/tm-mips.h gdb/config/mips/tm-mips64.h gdb/config/mips/tm-mipsm3.h gdb/config/mips/tm-mipsv4.h gdb/config/mips/tm-nbsd.h gdb/config/mips/tm-tx39.h gdb/config/mips/tm-tx39l.h gdb/config/mips/tm-vr4100.h gdb/config/mips/tm-vr4300.h gdb/config/mips/tm-vr4300el.h gdb/config/mips/tm-vr4xxx.h gdb/config/mips/tm-vr4xxxel.h gdb/config/mips/tm-vr5000.h gdb/config/mips/tm-vr5000el.h gdb/config/mips/tm-vxmips.h gdb/config/mips/tm-wince.h gdb/config/mips/tx39.mt gdb/config/mips/tx39l.mt gdb/config/mips/vr4100.mt gdb/config/mips/vr4300.mt gdb/config/mips/vr4300el.mt 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readline/config.h.bot readline/config.h.in readline/configure readline/configure.in readline/cross-build/cygwin.cache readline/display.c readline/doc/ChangeLog.gdb readline/doc/Makefile.in readline/doc/hist.texinfo readline/doc/hstech.texinfo readline/doc/hsuser.texinfo readline/doc/inc-hist.texinfo readline/doc/manvers.texinfo readline/doc/readline.3 readline/doc/rlman.texinfo readline/doc/rltech.texinfo readline/doc/rluser.texinfo readline/doc/rluserman.texinfo readline/doc/texi2dvi readline/doc/texi2html readline/emacs_keymap.c readline/examples/ChangeLog.gdb readline/examples/Inputrc readline/examples/Makefile.in readline/examples/excallback.c readline/examples/fileman.c readline/examples/histexamp.c readline/examples/manexamp.c readline/examples/rl.c readline/examples/rlfe.c readline/examples/rltest.c readline/examples/rlversion.c readline/funmap.c readline/histexpand.c readline/histfile.c readline/histlib.h readline/history.c readline/history.h readline/histsearch.c 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sim/testsuite/sim/m32r/ldh-d.cgs sim/testsuite/sim/m32r/ldh.cgs sim/testsuite/sim/m32r/ldi16.cgs sim/testsuite/sim/m32r/ldi8.cgs sim/testsuite/sim/m32r/ldub-d.cgs sim/testsuite/sim/m32r/ldub.cgs sim/testsuite/sim/m32r/lduh-d.cgs sim/testsuite/sim/m32r/lduh.cgs sim/testsuite/sim/m32r/lock.cgs sim/testsuite/sim/m32r/machi.cgs sim/testsuite/sim/m32r/maclo.cgs sim/testsuite/sim/m32r/macwhi.cgs sim/testsuite/sim/m32r/macwlo.cgs sim/testsuite/sim/m32r/misc.exp sim/testsuite/sim/m32r/mul.cgs sim/testsuite/sim/m32r/mulhi.cgs sim/testsuite/sim/m32r/mullo.cgs sim/testsuite/sim/m32r/mulwhi.cgs sim/testsuite/sim/m32r/mulwlo.cgs sim/testsuite/sim/m32r/mv.cgs sim/testsuite/sim/m32r/mvfachi.cgs sim/testsuite/sim/m32r/mvfaclo.cgs sim/testsuite/sim/m32r/mvfacmi.cgs sim/testsuite/sim/m32r/mvfc.cgs sim/testsuite/sim/m32r/mvtachi.cgs sim/testsuite/sim/m32r/mvtaclo.cgs sim/testsuite/sim/m32r/mvtc.cgs sim/testsuite/sim/m32r/neg.cgs sim/testsuite/sim/m32r/nop.cgs sim/testsuite/sim/m32r/not.cgs sim/testsuite/sim/m32r/or.cgs sim/testsuite/sim/m32r/or3.cgs sim/testsuite/sim/m32r/rac.cgs sim/testsuite/sim/m32r/rach.cgs sim/testsuite/sim/m32r/rem.cgs sim/testsuite/sim/m32r/remu.cgs sim/testsuite/sim/m32r/rte.cgs sim/testsuite/sim/m32r/seth.cgs sim/testsuite/sim/m32r/sll.cgs sim/testsuite/sim/m32r/sll3.cgs sim/testsuite/sim/m32r/slli.cgs sim/testsuite/sim/m32r/sra.cgs sim/testsuite/sim/m32r/sra3.cgs sim/testsuite/sim/m32r/srai.cgs sim/testsuite/sim/m32r/srl.cgs sim/testsuite/sim/m32r/srl3.cgs sim/testsuite/sim/m32r/srli.cgs sim/testsuite/sim/m32r/st-d.cgs sim/testsuite/sim/m32r/st-minus.cgs sim/testsuite/sim/m32r/st-plus.cgs sim/testsuite/sim/m32r/st.cgs sim/testsuite/sim/m32r/stb-d.cgs sim/testsuite/sim/m32r/stb.cgs sim/testsuite/sim/m32r/sth-d.cgs sim/testsuite/sim/m32r/sth.cgs sim/testsuite/sim/m32r/sub.cgs sim/testsuite/sim/m32r/subv.cgs sim/testsuite/sim/m32r/subx.cgs sim/testsuite/sim/m32r/testutils.inc sim/testsuite/sim/m32r/trap.cgs sim/testsuite/sim/m32r/unlock.cgs sim/testsuite/sim/m32r/uread16.ms sim/testsuite/sim/m32r/uread32.ms sim/testsuite/sim/m32r/uwrite16.ms sim/testsuite/sim/m32r/uwrite32.ms sim/testsuite/sim/m32r/xor.cgs sim/testsuite/sim/m32r/xor3.cgs sim/v850/ChangeLog sim/v850/Makefile.in sim/v850/acconfig.h sim/v850/config.in sim/v850/configure sim/v850/configure.in sim/v850/interp.c sim/v850/sim-main.h sim/v850/simops.c sim/v850/simops.h sim/v850/v850-dc sim/v850/v850.igen sim/v850/v850_sim.h sim/z8k/ChangeLog sim/z8k/Makefile.in sim/z8k/acconfig.h sim/z8k/comped1.c sim/z8k/comped2.c sim/z8k/comped3.c sim/z8k/compedb3.c sim/z8k/config.in sim/z8k/configure sim/z8k/configure.in sim/z8k/iface.c sim/z8k/inlines.h sim/z8k/mem.c sim/z8k/mem.h sim/z8k/quick.c sim/z8k/sim.h sim/z8k/support.c sim/z8k/syscall.h sim/z8k/tconfig.in sim/z8k/tm.h sim/z8k/writecode.c texinfo/texinfo.tex
author: nobody <> 2002-09-07 00:00:05 +0000
committer: nobody <> 2002-09-07 00:00:05 +0000
commit: c1aa2a27e755c883b5c49b223120dfb712ea4e28 (patch)
tree: a98633075cd1f2b034b49446e83e522708d11f68 /gdb/remote-mips.c
parent: 2e3c0e2427295c9cc09a8a707dfba38d50e2ba30 (diff)
download: gdb-sid-20020905-branch.zip
gdb-sid-20020905-branch.tar.gz
gdb-sid-20020905-branch.tar.bz2
1 files changed, 0 insertions, 3599 deletions
diff --git a/gdb/remote-mips.c b/gdb/remote-mips.c
deleted file mode 100644
index a1df0eb..0000000
--- a/gdb/remote-mips.c
+++ /dev/null
@@ -1,3599 +0,0 @@
-/* Remote debugging interface for MIPS remote debugging protocol.
-
-   Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-   2002 Free Software Foundation, Inc.
-
-   Contributed by Cygnus Support.  Written by Ian Lance Taylor
-   <ian@cygnus.com>.
-
-   This file is part of GDB.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-#include "defs.h"
-#include "inferior.h"
-#include "bfd.h"
-#include "symfile.h"
-#include "gdbcmd.h"
-#include "gdbcore.h"
-#include "serial.h"
-#include "target.h"
-#include "remote-utils.h"
-#include "gdb_string.h"
-#include "gdb_stat.h"
-#include "regcache.h"
-#include <ctype.h>
-
-
-/* Breakpoint types.  Values 0, 1, and 2 must agree with the watch
-   types passed by breakpoint.c to target_insert_watchpoint.
-   Value 3 is our own invention, and is used for ordinary instruction
-   breakpoints.  Value 4 is used to mark an unused watchpoint in tables.  */
-enum break_type
-  {
-    BREAK_WRITE,		/* 0 */
-    BREAK_READ,			/* 1 */
-    BREAK_ACCESS,		/* 2 */
-    BREAK_FETCH,		/* 3 */
-    BREAK_UNUSED		/* 4 */
-  };
-
-/* Prototypes for local functions.  */
-
-static int mips_readchar (int timeout);
-
-static int mips_receive_header (unsigned char *hdr, int *pgarbage,
-				int ch, int timeout);
-
-static int mips_receive_trailer (unsigned char *trlr, int *pgarbage,
-				 int *pch, int timeout);
-
-static int mips_cksum (const unsigned char *hdr,
-		       const unsigned char *data, int len);
-
-static void mips_send_packet (const char *s, int get_ack);
-
-static void mips_send_command (const char *cmd, int prompt);
-
-static int mips_receive_packet (char *buff, int throw_error, int timeout);
-
-static ULONGEST mips_request (int cmd, ULONGEST addr, ULONGEST data,
-			      int *perr, int timeout, char *buff);
-
-static void mips_initialize (void);
-
-static void mips_open (char *name, int from_tty);
-
-static void pmon_open (char *name, int from_tty);
-
-static void ddb_open (char *name, int from_tty);
-
-static void lsi_open (char *name, int from_tty);
-
-static void mips_close (int quitting);
-
-static void mips_detach (char *args, int from_tty);
-
-static void mips_resume (ptid_t ptid, int step,
-                         enum target_signal siggnal);
-
-static ptid_t mips_wait (ptid_t ptid,
-                               struct target_waitstatus *status);
-
-static int mips_map_regno (int regno);
-
-static void mips_fetch_registers (int regno);
-
-static void mips_prepare_to_store (void);
-
-static void mips_store_registers (int regno);
-
-static unsigned int mips_fetch_word (CORE_ADDR addr);
-
-static int mips_store_word (CORE_ADDR addr, unsigned int value,
-			    char *old_contents);
-
-static int mips_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len,
-			     int write, 
-			     struct mem_attrib *attrib,
-			     struct target_ops *target);
-
-static void mips_files_info (struct target_ops *ignore);
-
-static void mips_create_inferior (char *execfile, char *args, char **env);
-
-static void mips_mourn_inferior (void);
-
-static int pmon_makeb64 (unsigned long v, char *p, int n, int *chksum);
-
-static int pmon_zeroset (int recsize, char **buff, int *amount,
-			 unsigned int *chksum);
-
-static int pmon_checkset (int recsize, char **buff, int *value);
-
-static void pmon_make_fastrec (char **outbuf, unsigned char *inbuf,
-			       int *inptr, int inamount, int *recsize,
-			       unsigned int *csum, unsigned int *zerofill);
-
-static int pmon_check_ack (char *mesg);
-
-static void pmon_start_download (void);
-
-static void pmon_end_download (int final, int bintotal);
-
-static void pmon_download (char *buffer, int length);
-
-static void pmon_load_fast (char *file);
-
-static void mips_load (char *file, int from_tty);
-
-static int mips_make_srec (char *buffer, int type, CORE_ADDR memaddr,
-			   unsigned char *myaddr, int len);
-
-static int set_breakpoint (CORE_ADDR addr, int len, enum break_type type);
-
-static int clear_breakpoint (CORE_ADDR addr, int len, enum break_type type);
-
-static int common_breakpoint (int set, CORE_ADDR addr, int len,
-			      enum break_type type);
-
-/* Forward declarations.  */
-extern struct target_ops mips_ops;
-extern struct target_ops pmon_ops;
-extern struct target_ops ddb_ops;
-/* *INDENT-OFF* */
-/* The MIPS remote debugging interface is built on top of a simple
-   packet protocol.  Each packet is organized as follows:
-
-   SYN  The first character is always a SYN (ASCII 026, or ^V).  SYN
-   may not appear anywhere else in the packet.  Any time a SYN is
-   seen, a new packet should be assumed to have begun.
-
-   TYPE_LEN
-   This byte contains the upper five bits of the logical length
-   of the data section, plus a single bit indicating whether this
-   is a data packet or an acknowledgement.  The documentation
-   indicates that this bit is 1 for a data packet, but the actual
-   board uses 1 for an acknowledgement.  The value of the byte is
-   0x40 + (ack ? 0x20 : 0) + (len >> 6)
-   (we always have 0 <= len < 1024).  Acknowledgement packets do
-   not carry data, and must have a data length of 0.
-
-   LEN1 This byte contains the lower six bits of the logical length of
-   the data section.  The value is
-   0x40 + (len & 0x3f)
-
-   SEQ  This byte contains the six bit sequence number of the packet.
-   The value is
-   0x40 + seq
-   An acknowlegment packet contains the sequence number of the
-   packet being acknowledged plus 1 modulo 64.  Data packets are
-   transmitted in sequence.  There may only be one outstanding
-   unacknowledged data packet at a time.  The sequence numbers
-   are independent in each direction.  If an acknowledgement for
-   the previous packet is received (i.e., an acknowledgement with
-   the sequence number of the packet just sent) the packet just
-   sent should be retransmitted.  If no acknowledgement is
-   received within a timeout period, the packet should be
-   retransmitted.  This has an unfortunate failure condition on a
-   high-latency line, as a delayed acknowledgement may lead to an
-   endless series of duplicate packets.
-
-   DATA The actual data bytes follow.  The following characters are
-   escaped inline with DLE (ASCII 020, or ^P):
-   SYN (026)    DLE S
-   DLE (020)    DLE D
-   ^C  (003)    DLE C
-   ^S  (023)    DLE s
-   ^Q  (021)    DLE q
-   The additional DLE characters are not counted in the logical
-   length stored in the TYPE_LEN and LEN1 bytes.
-
-   CSUM1
-   CSUM2
-   CSUM3
-   These bytes contain an 18 bit checksum of the complete
-   contents of the packet excluding the SEQ byte and the
-   CSUM[123] bytes.  The checksum is simply the twos complement
-   addition of all the bytes treated as unsigned characters.  The
-   values of the checksum bytes are:
-   CSUM1: 0x40 + ((cksum >> 12) & 0x3f)
-   CSUM2: 0x40 + ((cksum >> 6) & 0x3f)
-   CSUM3: 0x40 + (cksum & 0x3f)
-
-   It happens that the MIPS remote debugging protocol always
-   communicates with ASCII strings.  Because of this, this
-   implementation doesn't bother to handle the DLE quoting mechanism,
-   since it will never be required.  */
-/* *INDENT-ON* */
-
-
-/* The SYN character which starts each packet.  */
-#define SYN '\026'
-
-/* The 0x40 used to offset each packet (this value ensures that all of
-   the header and trailer bytes, other than SYN, are printable ASCII
-   characters).  */
-#define HDR_OFFSET 0x40
-
-/* The indices of the bytes in the packet header.  */
-#define HDR_INDX_SYN 0
-#define HDR_INDX_TYPE_LEN 1
-#define HDR_INDX_LEN1 2
-#define HDR_INDX_SEQ 3
-#define HDR_LENGTH 4
-
-/* The data/ack bit in the TYPE_LEN header byte.  */
-#define TYPE_LEN_DA_BIT 0x20
-#define TYPE_LEN_DATA 0
-#define TYPE_LEN_ACK TYPE_LEN_DA_BIT
-
-/* How to compute the header bytes.  */
-#define HDR_SET_SYN(data, len, seq) (SYN)
-#define HDR_SET_TYPE_LEN(data, len, seq) \
-  (HDR_OFFSET \
-   + ((data) ? TYPE_LEN_DATA : TYPE_LEN_ACK) \
-   + (((len) >> 6) & 0x1f))
-#define HDR_SET_LEN1(data, len, seq) (HDR_OFFSET + ((len) & 0x3f))
-#define HDR_SET_SEQ(data, len, seq) (HDR_OFFSET + (seq))
-
-/* Check that a header byte is reasonable.  */
-#define HDR_CHECK(ch) (((ch) & HDR_OFFSET) == HDR_OFFSET)
-
-/* Get data from the header.  These macros evaluate their argument
-   multiple times.  */
-#define HDR_IS_DATA(hdr) \
-  (((hdr)[HDR_INDX_TYPE_LEN] & TYPE_LEN_DA_BIT) == TYPE_LEN_DATA)
-#define HDR_GET_LEN(hdr) \
-  ((((hdr)[HDR_INDX_TYPE_LEN] & 0x1f) << 6) + (((hdr)[HDR_INDX_LEN1] & 0x3f)))
-#define HDR_GET_SEQ(hdr) ((unsigned int)(hdr)[HDR_INDX_SEQ] & 0x3f)
-
-/* The maximum data length.  */
-#define DATA_MAXLEN 1023
-
-/* The trailer offset.  */
-#define TRLR_OFFSET HDR_OFFSET
-
-/* The indices of the bytes in the packet trailer.  */
-#define TRLR_INDX_CSUM1 0
-#define TRLR_INDX_CSUM2 1
-#define TRLR_INDX_CSUM3 2
-#define TRLR_LENGTH 3
-
-/* How to compute the trailer bytes.  */
-#define TRLR_SET_CSUM1(cksum) (TRLR_OFFSET + (((cksum) >> 12) & 0x3f))
-#define TRLR_SET_CSUM2(cksum) (TRLR_OFFSET + (((cksum) >>  6) & 0x3f))
-#define TRLR_SET_CSUM3(cksum) (TRLR_OFFSET + (((cksum)      ) & 0x3f))
-
-/* Check that a trailer byte is reasonable.  */
-#define TRLR_CHECK(ch) (((ch) & TRLR_OFFSET) == TRLR_OFFSET)
-
-/* Get data from the trailer.  This evaluates its argument multiple
-   times.  */
-#define TRLR_GET_CKSUM(trlr) \
-  ((((trlr)[TRLR_INDX_CSUM1] & 0x3f) << 12) \
-   + (((trlr)[TRLR_INDX_CSUM2] & 0x3f) <<  6) \
-   + ((trlr)[TRLR_INDX_CSUM3] & 0x3f))
-
-/* The sequence number modulos.  */
-#define SEQ_MODULOS (64)
-
-/* PMON commands to load from the serial port or UDP socket.  */
-#define LOAD_CMD	"load -b -s tty0\r"
-#define LOAD_CMD_UDP	"load -b -s udp\r"
-
-/* The target vectors for the four different remote MIPS targets.
-   These are initialized with code in _initialize_remote_mips instead
-   of static initializers, to make it easier to extend the target_ops
-   vector later.  */
-struct target_ops mips_ops, pmon_ops, ddb_ops, lsi_ops;
-
-enum mips_monitor_type
-  {
-    /* IDT/SIM monitor being used: */
-    MON_IDT,
-    /* PMON monitor being used: */
-    MON_PMON,			/* 3.0.83 [COGENT,EB,FP,NET] Algorithmics Ltd. Nov  9 1995 17:19:50 */
-    MON_DDB,			/* 2.7.473 [DDBVR4300,EL,FP,NET] Risq Modular Systems,  Thu Jun 6 09:28:40 PDT 1996 */
-    MON_LSI,			/* 4.3.12 [EB,FP], LSI LOGIC Corp. Tue Feb 25 13:22:14 1997 */
-    /* Last and unused value, for sizing vectors, etc. */
-    MON_LAST
-  };
-static enum mips_monitor_type mips_monitor = MON_LAST;
-
-/* The monitor prompt text.  If the user sets the PMON prompt
-   to some new value, the GDB `set monitor-prompt' command must also
-   be used to inform GDB about the expected prompt.  Otherwise, GDB
-   will not be able to connect to PMON in mips_initialize().
-   If the `set monitor-prompt' command is not used, the expected
-   default prompt will be set according the target:
-   target               prompt
-   -----                -----
-   pmon         PMON> 
-   ddb          NEC010>
-   lsi          PMON>
- */
-static char *mips_monitor_prompt;
-
-/* Set to 1 if the target is open.  */
-static int mips_is_open;
-
-/* Currently active target description (if mips_is_open == 1) */
-static struct target_ops *current_ops;
-
-/* Set to 1 while the connection is being initialized.  */
-static int mips_initializing;
-
-/* Set to 1 while the connection is being brought down.  */
-static int mips_exiting;
-
-/* The next sequence number to send.  */
-static unsigned int mips_send_seq;
-
-/* The next sequence number we expect to receive.  */
-static unsigned int mips_receive_seq;
-
-/* The time to wait before retransmitting a packet, in seconds.  */
-static int mips_retransmit_wait = 3;
-
-/* The number of times to try retransmitting a packet before giving up.  */
-static int mips_send_retries = 10;
-
-/* The number of garbage characters to accept when looking for an
-   SYN for the next packet.  */
-static int mips_syn_garbage = 10;
-
-/* The time to wait for a packet, in seconds.  */
-static int mips_receive_wait = 5;
-
-/* Set if we have sent a packet to the board but have not yet received
-   a reply.  */
-static int mips_need_reply = 0;
-
-/* Handle used to access serial I/O stream.  */
-static struct serial *mips_desc;
-
-/* UDP handle used to download files to target.  */
-static struct serial *udp_desc;
-static int udp_in_use;
-
-/* TFTP filename used to download files to DDB board, in the form
-   host:filename.  */
-static char *tftp_name;		/* host:filename */
-static char *tftp_localname;	/* filename portion of above */
-static int tftp_in_use;
-static FILE *tftp_file;
-
-/* Counts the number of times the user tried to interrupt the target (usually
-   via ^C.  */
-static int interrupt_count;
-
-/* If non-zero, means that the target is running. */
-static int mips_wait_flag = 0;
-
-/* If non-zero, monitor supports breakpoint commands. */
-static int monitor_supports_breakpoints = 0;
-
-/* Data cache header.  */
-
-#if 0				/* not used (yet?) */
-static DCACHE *mips_dcache;
-#endif
-
-/* Non-zero means that we've just hit a read or write watchpoint */
-static int hit_watchpoint;
-
-/* Table of breakpoints/watchpoints (used only on LSI PMON target).
-   The table is indexed by a breakpoint number, which is an integer
-   from 0 to 255 returned by the LSI PMON when a breakpoint is set.
- */
-#define MAX_LSI_BREAKPOINTS 256
-struct lsi_breakpoint_info
-  {
-    enum break_type type;	/* type of breakpoint */
-    CORE_ADDR addr;		/* address of breakpoint */
-    int len;			/* length of region being watched */
-    unsigned long value;	/* value to watch */
-  }
-lsi_breakpoints[MAX_LSI_BREAKPOINTS];
-
-/* Error/warning codes returned by LSI PMON for breakpoint commands.
-   Warning values may be ORed together; error values may not.  */
-#define W_WARN	0x100		/* This bit is set if the error code is a warning */
-#define W_MSK   0x101		/* warning: Range feature is supported via mask */
-#define W_VAL   0x102		/* warning: Value check is not supported in hardware */
-#define W_QAL   0x104		/* warning: Requested qualifiers are not supported in hardware */
-
-#define E_ERR	0x200		/* This bit is set if the error code is an error */
-#define E_BPT   0x200		/* error: No such breakpoint number */
-#define E_RGE   0x201		/* error: Range is not supported */
-#define E_QAL   0x202		/* error: The requested qualifiers can not be used */
-#define E_OUT   0x203		/* error: Out of hardware resources */
-#define E_NON   0x204		/* error: Hardware breakpoint not supported */
-
-struct lsi_error
-  {
-    int code;			/* error code */
-    char *string;		/* string associated with this code */
-  };
-
-struct lsi_error lsi_warning_table[] =
-{
-  {W_MSK, "Range feature is supported via mask"},
-  {W_VAL, "Value check is not supported in hardware"},
-  {W_QAL, "Requested qualifiers are not supported in hardware"},
-  {0, NULL}
-};
-
-struct lsi_error lsi_error_table[] =
-{
-  {E_BPT, "No such breakpoint number"},
-  {E_RGE, "Range is not supported"},
-  {E_QAL, "The requested qualifiers can not be used"},
-  {E_OUT, "Out of hardware resources"},
-  {E_NON, "Hardware breakpoint not supported"},
-  {0, NULL}
-};
-
-/* Set to 1 with the 'set monitor-warnings' command to enable printing
-   of warnings returned by PMON when hardware breakpoints are used.  */
-static int monitor_warnings;
-
-
-static void
-close_ports (void)
-{
-  mips_is_open = 0;
-  serial_close (mips_desc);
-
-  if (udp_in_use)
-    {
-      serial_close (udp_desc);
-      udp_in_use = 0;
-    }
-  tftp_in_use = 0;
-}
-
-/* Handle low-level error that we can't recover from.  Note that just
-   error()ing out from target_wait or some such low-level place will cause
-   all hell to break loose--the rest of GDB will tend to get left in an
-   inconsistent state.  */
-
-static NORETURN void
-mips_error (char *string,...)
-{
-  va_list args;
-
-  va_start (args, string);
-
-  target_terminal_ours ();
-  wrap_here ("");		/* Force out any buffered output */
-  gdb_flush (gdb_stdout);
-  if (error_pre_print)
-    fprintf_filtered (gdb_stderr, error_pre_print);
-  vfprintf_filtered (gdb_stderr, string, args);
-  fprintf_filtered (gdb_stderr, "\n");
-  va_end (args);
-  gdb_flush (gdb_stderr);
-
-  /* Clean up in such a way that mips_close won't try to talk to the
-     board (it almost surely won't work since we weren't able to talk to
-     it).  */
-  close_ports ();
-
-  printf_unfiltered ("Ending remote MIPS debugging.\n");
-  target_mourn_inferior ();
-
-  throw_exception (RETURN_ERROR);
-}
-
-/* putc_readable - print a character, displaying non-printable chars in
-   ^x notation or in hex.  */
-
-static void
-fputc_readable (int ch, struct ui_file *file)
-{
-  if (ch == '\n')
-    fputc_unfiltered ('\n', file);
-  else if (ch == '\r')
-    fprintf_unfiltered (file, "\\r");
-  else if (ch < 0x20)		/* ASCII control character */
-    fprintf_unfiltered (file, "^%c", ch + '@');
-  else if (ch >= 0x7f)		/* non-ASCII characters (rubout or greater) */
-    fprintf_unfiltered (file, "[%02x]", ch & 0xff);
-  else
-    fputc_unfiltered (ch, file);
-}
-
-
-/* puts_readable - print a string, displaying non-printable chars in
-   ^x notation or in hex.  */
-
-static void
-fputs_readable (const char *string, struct ui_file *file)
-{
-  int c;
-
-  while ((c = *string++) != '\0')
-    fputc_readable (c, file);
-}
-
-
-/* Wait until STRING shows up in mips_desc.  Returns 1 if successful, else 0 if
-   timed out.  TIMEOUT specifies timeout value in seconds.
- */
-
-int
-mips_expect_timeout (const char *string, int timeout)
-{
-  const char *p = string;
-
-  if (remote_debug)
-    {
-      fprintf_unfiltered (gdb_stdlog, "Expected \"");
-      fputs_readable (string, gdb_stdlog);
-      fprintf_unfiltered (gdb_stdlog, "\", got \"");
-    }
-
-  immediate_quit++;
-  while (1)
-    {
-      int c;
-
-      /* Must use serial_readchar() here cuz mips_readchar would get
-	 confused if we were waiting for the mips_monitor_prompt... */
-
-      c = serial_readchar (mips_desc, timeout);
-
-      if (c == SERIAL_TIMEOUT)
-	{
-	  if (remote_debug)
-	    fprintf_unfiltered (gdb_stdlog, "\": FAIL\n");
-	  return 0;
-	}
-
-      if (remote_debug)
-	fputc_readable (c, gdb_stdlog);
-
-      if (c == *p++)
-	{
-	  if (*p == '\0')
-	    {
-	      immediate_quit--;
-	      if (remote_debug)
-		fprintf_unfiltered (gdb_stdlog, "\": OK\n");
-	      return 1;
-	    }
-	}
-      else
-	{
-	  p = string;
-	  if (c == *p)
-	    p++;
-	}
-    }
-}
-
-/* Wait until STRING shows up in mips_desc.  Returns 1 if successful, else 0 if
-   timed out.  The timeout value is hard-coded to 2 seconds.  Use
-   mips_expect_timeout if a different timeout value is needed.
- */
-
-int
-mips_expect (const char *string)
-{
-  return mips_expect_timeout (string, remote_timeout);
-}
-
-/* Read the required number of characters into the given buffer (which
-   is assumed to be large enough). The only failure is a timeout. */
-int
-mips_getstring (char *string, int n)
-{
-  char *p = string;
-  int c;
-
-  immediate_quit++;
-  while (n > 0)
-    {
-      c = serial_readchar (mips_desc, remote_timeout);
-
-      if (c == SERIAL_TIMEOUT)
-	{
-	  fprintf_unfiltered (gdb_stderr,
-		 "Failed to read %d characters from target (TIMEOUT)\n", n);
-	  immediate_quit--;
-	  return 0;
-	}
-
-      *p++ = c;
-      n--;
-    }
-
-  immediate_quit--;
-  return 1;
-}
-
-/* Read a character from the remote, aborting on error.  Returns
-   SERIAL_TIMEOUT on timeout (since that's what serial_readchar()
-   returns).  FIXME: If we see the string mips_monitor_prompt from the
-   board, then we are debugging on the main console port, and we have
-   somehow dropped out of remote debugging mode.  In this case, we
-   automatically go back in to remote debugging mode.  This is a hack,
-   put in because I can't find any way for a program running on the
-   remote board to terminate without also ending remote debugging
-   mode.  I assume users won't have any trouble with this; for one
-   thing, the IDT documentation generally assumes that the remote
-   debugging port is not the console port.  This is, however, very
-   convenient for DejaGnu when you only have one connected serial
-   port.  */
-
-static int
-mips_readchar (int timeout)
-{
-  int ch;
-  static int state = 0;
-  int mips_monitor_prompt_len = strlen (mips_monitor_prompt);
-
-  {
-    int i;
-
-    i = timeout;
-    if (i == -1 && watchdog > 0)
-      i = watchdog;
-  }
-
-  if (state == mips_monitor_prompt_len)
-    timeout = 1;
-  ch = serial_readchar (mips_desc, timeout);
-
-  if (ch == SERIAL_TIMEOUT && timeout == -1)	/* Watchdog went off */
-    {
-      target_mourn_inferior ();
-      error ("Watchdog has expired.  Target detached.\n");
-    }
-
-  if (ch == SERIAL_EOF)
-    mips_error ("End of file from remote");
-  if (ch == SERIAL_ERROR)
-    mips_error ("Error reading from remote: %s", safe_strerror (errno));
-  if (remote_debug > 1)
-    {
-      /* Don't use _filtered; we can't deal with a QUIT out of
-         target_wait, and I think this might be called from there.  */
-      if (ch != SERIAL_TIMEOUT)
-	fprintf_unfiltered (gdb_stdlog, "Read '%c' %d 0x%x\n", ch, ch, ch);
-      else
-	fprintf_unfiltered (gdb_stdlog, "Timed out in read\n");
-    }
-
-  /* If we have seen mips_monitor_prompt and we either time out, or
-     we see a @ (which was echoed from a packet we sent), reset the
-     board as described above.  The first character in a packet after
-     the SYN (which is not echoed) is always an @ unless the packet is
-     more than 64 characters long, which ours never are.  */
-  if ((ch == SERIAL_TIMEOUT || ch == '@')
-      && state == mips_monitor_prompt_len
-      && !mips_initializing
-      && !mips_exiting)
-    {
-      if (remote_debug > 0)
-	/* Don't use _filtered; we can't deal with a QUIT out of
-	   target_wait, and I think this might be called from there.  */
-	fprintf_unfiltered (gdb_stdlog, "Reinitializing MIPS debugging mode\n");
-
-      mips_need_reply = 0;
-      mips_initialize ();
-
-      state = 0;
-
-      /* At this point, about the only thing we can do is abort the command
-         in progress and get back to command level as quickly as possible. */
-
-      error ("Remote board reset, debug protocol re-initialized.");
-    }
-
-  if (ch == mips_monitor_prompt[state])
-    ++state;
-  else
-    state = 0;
-
-  return ch;
-}
-
-/* Get a packet header, putting the data in the supplied buffer.
-   PGARBAGE is a pointer to the number of garbage characters received
-   so far.  CH is the last character received.  Returns 0 for success,
-   or -1 for timeout.  */
-
-static int
-mips_receive_header (unsigned char *hdr, int *pgarbage, int ch, int timeout)
-{
-  int i;
-
-  while (1)
-    {
-      /* Wait for a SYN.  mips_syn_garbage is intended to prevent
-         sitting here indefinitely if the board sends us one garbage
-         character per second.  ch may already have a value from the
-         last time through the loop.  */
-      while (ch != SYN)
-	{
-	  ch = mips_readchar (timeout);
-	  if (ch == SERIAL_TIMEOUT)
-	    return -1;
-	  if (ch != SYN)
-	    {
-	      /* Printing the character here lets the user of gdb see
-	         what the program is outputting, if the debugging is
-	         being done on the console port.  Don't use _filtered:
-	         we can't deal with a QUIT out of target_wait and
-	         buffered target output confuses the user. */
- 	      if (!mips_initializing || remote_debug > 0)
-  		{
-		  if (isprint (ch) || isspace (ch))
-		    {
-		      fputc_unfiltered (ch, gdb_stdtarg);
-		    }
-		  else
-		    {
-		      fputc_readable (ch, gdb_stdtarg);
-		    }
-		  gdb_flush (gdb_stdtarg);
-  		}
-	      
-	      /* Only count unprintable characters. */
-	      if (! (isprint (ch) || isspace (ch)))
-		(*pgarbage) += 1;
-
-	      if (mips_syn_garbage > 0
-		  && *pgarbage > mips_syn_garbage)
-		mips_error ("Debug protocol failure:  more than %d characters before a sync.",
-			    mips_syn_garbage);
-	    }
-	}
-
-      /* Get the packet header following the SYN.  */
-      for (i = 1; i < HDR_LENGTH; i++)
-	{
-	  ch = mips_readchar (timeout);
-	  if (ch == SERIAL_TIMEOUT)
-	    return -1;
-	  /* Make sure this is a header byte.  */
-	  if (ch == SYN || !HDR_CHECK (ch))
-	    break;
-
-	  hdr[i] = ch;
-	}
-
-      /* If we got the complete header, we can return.  Otherwise we
-         loop around and keep looking for SYN.  */
-      if (i >= HDR_LENGTH)
-	return 0;
-    }
-}
-
-/* Get a packet header, putting the data in the supplied buffer.
-   PGARBAGE is a pointer to the number of garbage characters received
-   so far.  The last character read is returned in *PCH.  Returns 0
-   for success, -1 for timeout, -2 for error.  */
-
-static int
-mips_receive_trailer (unsigned char *trlr, int *pgarbage, int *pch, int timeout)
-{
-  int i;
-  int ch;
-
-  for (i = 0; i < TRLR_LENGTH; i++)
-    {
-      ch = mips_readchar (timeout);
-      *pch = ch;
-      if (ch == SERIAL_TIMEOUT)
-	return -1;
-      if (!TRLR_CHECK (ch))
-	return -2;
-      trlr[i] = ch;
-    }
-  return 0;
-}
-
-/* Get the checksum of a packet.  HDR points to the packet header.
-   DATA points to the packet data.  LEN is the length of DATA.  */
-
-static int
-mips_cksum (const unsigned char *hdr, const unsigned char *data, int len)
-{
-  register const unsigned char *p;
-  register int c;
-  register int cksum;
-
-  cksum = 0;
-
-  /* The initial SYN is not included in the checksum.  */
-  c = HDR_LENGTH - 1;
-  p = hdr + 1;
-  while (c-- != 0)
-    cksum += *p++;
-
-  c = len;
-  p = data;
-  while (c-- != 0)
-    cksum += *p++;
-
-  return cksum;
-}
-
-/* Send a packet containing the given ASCII string.  */
-
-static void
-mips_send_packet (const char *s, int get_ack)
-{
-  /* unsigned */ int len;
-  unsigned char *packet;
-  register int cksum;
-  int try;
-
-  len = strlen (s);
-  if (len > DATA_MAXLEN)
-    mips_error ("MIPS protocol data packet too long: %s", s);
-
-  packet = (unsigned char *) alloca (HDR_LENGTH + len + TRLR_LENGTH + 1);
-
-  packet[HDR_INDX_SYN] = HDR_SET_SYN (1, len, mips_send_seq);
-  packet[HDR_INDX_TYPE_LEN] = HDR_SET_TYPE_LEN (1, len, mips_send_seq);
-  packet[HDR_INDX_LEN1] = HDR_SET_LEN1 (1, len, mips_send_seq);
-  packet[HDR_INDX_SEQ] = HDR_SET_SEQ (1, len, mips_send_seq);
-
-  memcpy (packet + HDR_LENGTH, s, len);
-
-  cksum = mips_cksum (packet, packet + HDR_LENGTH, len);
-  packet[HDR_LENGTH + len + TRLR_INDX_CSUM1] = TRLR_SET_CSUM1 (cksum);
-  packet[HDR_LENGTH + len + TRLR_INDX_CSUM2] = TRLR_SET_CSUM2 (cksum);
-  packet[HDR_LENGTH + len + TRLR_INDX_CSUM3] = TRLR_SET_CSUM3 (cksum);
-
-  /* Increment the sequence number.  This will set mips_send_seq to
-     the sequence number we expect in the acknowledgement.  */
-  mips_send_seq = (mips_send_seq + 1) % SEQ_MODULOS;
-
-  /* We can only have one outstanding data packet, so we just wait for
-     the acknowledgement here.  Keep retransmitting the packet until
-     we get one, or until we've tried too many times.  */
-  for (try = 0; try < mips_send_retries; try++)
-    {
-      int garbage;
-      int ch;
-
-      if (remote_debug > 0)
-	{
-	  /* Don't use _filtered; we can't deal with a QUIT out of
-	     target_wait, and I think this might be called from there.  */
-	  packet[HDR_LENGTH + len + TRLR_LENGTH] = '\0';
-	  fprintf_unfiltered (gdb_stdlog, "Writing \"%s\"\n", packet + 1);
-	}
-
-      if (serial_write (mips_desc, packet,
-			HDR_LENGTH + len + TRLR_LENGTH) != 0)
-	mips_error ("write to target failed: %s", safe_strerror (errno));
-
-      if (!get_ack)
-	return;
-
-      garbage = 0;
-      ch = 0;
-      while (1)
-	{
-	  unsigned char hdr[HDR_LENGTH + 1];
-	  unsigned char trlr[TRLR_LENGTH + 1];
-	  int err;
-	  unsigned int seq;
-
-	  /* Get the packet header.  If we time out, resend the data
-	     packet.  */
-	  err = mips_receive_header (hdr, &garbage, ch, mips_retransmit_wait);
-	  if (err != 0)
-	    break;
-
-	  ch = 0;
-
-	  /* If we get a data packet, assume it is a duplicate and
-	     ignore it.  FIXME: If the acknowledgement is lost, this
-	     data packet may be the packet the remote sends after the
-	     acknowledgement.  */
-	  if (HDR_IS_DATA (hdr))
-	    {
-	      int i;
-
-	      /* Ignore any errors raised whilst attempting to ignore
-	         packet. */
-
-	      len = HDR_GET_LEN (hdr);
-
-	      for (i = 0; i < len; i++)
-		{
-		  int rch;
-
-		  rch = mips_readchar (remote_timeout);
-		  if (rch == SYN)
-		    {
-		      ch = SYN;
-		      break;
-		    }
-		  if (rch == SERIAL_TIMEOUT)
-		    break;
-		  /* ignore the character */
-		}
-
-	      if (i == len)
-		(void) mips_receive_trailer (trlr, &garbage, &ch,
-					     remote_timeout);
-
-	      /* We don't bother checking the checksum, or providing an
-	         ACK to the packet. */
-	      continue;
-	    }
-
-	  /* If the length is not 0, this is a garbled packet.  */
-	  if (HDR_GET_LEN (hdr) != 0)
-	    continue;
-
-	  /* Get the packet trailer.  */
-	  err = mips_receive_trailer (trlr, &garbage, &ch,
-				      mips_retransmit_wait);
-
-	  /* If we timed out, resend the data packet.  */
-	  if (err == -1)
-	    break;
-
-	  /* If we got a bad character, reread the header.  */
-	  if (err != 0)
-	    continue;
-
-	  /* If the checksum does not match the trailer checksum, this
-	     is a bad packet; ignore it.  */
-	  if (mips_cksum (hdr, (unsigned char *) NULL, 0)
-	      != TRLR_GET_CKSUM (trlr))
-	    continue;
-
-	  if (remote_debug > 0)
-	    {
-	      hdr[HDR_LENGTH] = '\0';
-	      trlr[TRLR_LENGTH] = '\0';
-	      /* Don't use _filtered; we can't deal with a QUIT out of
-	         target_wait, and I think this might be called from there.  */
-	      fprintf_unfiltered (gdb_stdlog, "Got ack %d \"%s%s\"\n",
-				  HDR_GET_SEQ (hdr), hdr + 1, trlr);
-	    }
-
-	  /* If this ack is for the current packet, we're done.  */
-	  seq = HDR_GET_SEQ (hdr);
-	  if (seq == mips_send_seq)
-	    return;
-
-	  /* If this ack is for the last packet, resend the current
-	     packet.  */
-	  if ((seq + 1) % SEQ_MODULOS == mips_send_seq)
-	    break;
-
-	  /* Otherwise this is a bad ack; ignore it.  Increment the
-	     garbage count to ensure that we do not stay in this loop
-	     forever.  */
-	  ++garbage;
-	}
-    }
-
-  mips_error ("Remote did not acknowledge packet");
-}
-
-/* Receive and acknowledge a packet, returning the data in BUFF (which
-   should be DATA_MAXLEN + 1 bytes).  The protocol documentation
-   implies that only the sender retransmits packets, so this code just
-   waits silently for a packet.  It returns the length of the received
-   packet.  If THROW_ERROR is nonzero, call error() on errors.  If not,
-   don't print an error message and return -1.  */
-
-static int
-mips_receive_packet (char *buff, int throw_error, int timeout)
-{
-  int ch;
-  int garbage;
-  int len;
-  unsigned char ack[HDR_LENGTH + TRLR_LENGTH + 1];
-  int cksum;
-
-  ch = 0;
-  garbage = 0;
-  while (1)
-    {
-      unsigned char hdr[HDR_LENGTH];
-      unsigned char trlr[TRLR_LENGTH];
-      int i;
-      int err;
-
-      if (mips_receive_header (hdr, &garbage, ch, timeout) != 0)
-	{
-	  if (throw_error)
-	    mips_error ("Timed out waiting for remote packet");
-	  else
-	    return -1;
-	}
-
-      ch = 0;
-
-      /* An acknowledgement is probably a duplicate; ignore it.  */
-      if (!HDR_IS_DATA (hdr))
-	{
-	  len = HDR_GET_LEN (hdr);
-	  /* Check if the length is valid for an ACK, we may aswell
-	     try and read the remainder of the packet: */
-	  if (len == 0)
-	    {
-	      /* Ignore the error condition, since we are going to
-	         ignore the packet anyway. */
-	      (void) mips_receive_trailer (trlr, &garbage, &ch, timeout);
-	    }
-	  /* Don't use _filtered; we can't deal with a QUIT out of
-	     target_wait, and I think this might be called from there.  */
-	  if (remote_debug > 0)
-	    fprintf_unfiltered (gdb_stdlog, "Ignoring unexpected ACK\n");
-	  continue;
-	}
-
-      len = HDR_GET_LEN (hdr);
-      for (i = 0; i < len; i++)
-	{
-	  int rch;
-
-	  rch = mips_readchar (timeout);
-	  if (rch == SYN)
-	    {
-	      ch = SYN;
-	      break;
-	    }
-	  if (rch == SERIAL_TIMEOUT)
-	    {
-	      if (throw_error)
-		mips_error ("Timed out waiting for remote packet");
-	      else
-		return -1;
-	    }
-	  buff[i] = rch;
-	}
-
-      if (i < len)
-	{
-	  /* Don't use _filtered; we can't deal with a QUIT out of
-	     target_wait, and I think this might be called from there.  */
-	  if (remote_debug > 0)
-	    fprintf_unfiltered (gdb_stdlog,
-				"Got new SYN after %d chars (wanted %d)\n",
-				i, len);
-	  continue;
-	}
-
-      err = mips_receive_trailer (trlr, &garbage, &ch, timeout);
-      if (err == -1)
-	{
-	  if (throw_error)
-	    mips_error ("Timed out waiting for packet");
-	  else
-	    return -1;
-	}
-      if (err == -2)
-	{
-	  /* Don't use _filtered; we can't deal with a QUIT out of
-	     target_wait, and I think this might be called from there.  */
-	  if (remote_debug > 0)
-	    fprintf_unfiltered (gdb_stdlog, "Got SYN when wanted trailer\n");
-	  continue;
-	}
-
-      /* If this is the wrong sequence number, ignore it.  */
-      if (HDR_GET_SEQ (hdr) != mips_receive_seq)
-	{
-	  /* Don't use _filtered; we can't deal with a QUIT out of
-	     target_wait, and I think this might be called from there.  */
-	  if (remote_debug > 0)
-	    fprintf_unfiltered (gdb_stdlog,
-				"Ignoring sequence number %d (want %d)\n",
-				HDR_GET_SEQ (hdr), mips_receive_seq);
-	  continue;
-	}
-
-      if (mips_cksum (hdr, buff, len) == TRLR_GET_CKSUM (trlr))
-	break;
-
-      if (remote_debug > 0)
-	/* Don't use _filtered; we can't deal with a QUIT out of
-	   target_wait, and I think this might be called from there.  */
-	printf_unfiltered ("Bad checksum; data %d, trailer %d\n",
-			   mips_cksum (hdr, buff, len),
-			   TRLR_GET_CKSUM (trlr));
-
-      /* The checksum failed.  Send an acknowledgement for the
-         previous packet to tell the remote to resend the packet.  */
-      ack[HDR_INDX_SYN] = HDR_SET_SYN (0, 0, mips_receive_seq);
-      ack[HDR_INDX_TYPE_LEN] = HDR_SET_TYPE_LEN (0, 0, mips_receive_seq);
-      ack[HDR_INDX_LEN1] = HDR_SET_LEN1 (0, 0, mips_receive_seq);
-      ack[HDR_INDX_SEQ] = HDR_SET_SEQ (0, 0, mips_receive_seq);
-
-      cksum = mips_cksum (ack, (unsigned char *) NULL, 0);
-
-      ack[HDR_LENGTH + TRLR_INDX_CSUM1] = TRLR_SET_CSUM1 (cksum);
-      ack[HDR_LENGTH + TRLR_INDX_CSUM2] = TRLR_SET_CSUM2 (cksum);
-      ack[HDR_LENGTH + TRLR_INDX_CSUM3] = TRLR_SET_CSUM3 (cksum);
-
-      if (remote_debug > 0)
-	{
-	  ack[HDR_LENGTH + TRLR_LENGTH] = '\0';
-	  /* Don't use _filtered; we can't deal with a QUIT out of
-	     target_wait, and I think this might be called from there.  */
-	  printf_unfiltered ("Writing ack %d \"%s\"\n", mips_receive_seq,
-			     ack + 1);
-	}
-
-      if (serial_write (mips_desc, ack, HDR_LENGTH + TRLR_LENGTH) != 0)
-	{
-	  if (throw_error)
-	    mips_error ("write to target failed: %s", safe_strerror (errno));
-	  else
-	    return -1;
-	}
-    }
-
-  if (remote_debug > 0)
-    {
-      buff[len] = '\0';
-      /* Don't use _filtered; we can't deal with a QUIT out of
-         target_wait, and I think this might be called from there.  */
-      printf_unfiltered ("Got packet \"%s\"\n", buff);
-    }
-
-  /* We got the packet.  Send an acknowledgement.  */
-  mips_receive_seq = (mips_receive_seq + 1) % SEQ_MODULOS;
-
-  ack[HDR_INDX_SYN] = HDR_SET_SYN (0, 0, mips_receive_seq);
-  ack[HDR_INDX_TYPE_LEN] = HDR_SET_TYPE_LEN (0, 0, mips_receive_seq);
-  ack[HDR_INDX_LEN1] = HDR_SET_LEN1 (0, 0, mips_receive_seq);
-  ack[HDR_INDX_SEQ] = HDR_SET_SEQ (0, 0, mips_receive_seq);
-
-  cksum = mips_cksum (ack, (unsigned char *) NULL, 0);
-
-  ack[HDR_LENGTH + TRLR_INDX_CSUM1] = TRLR_SET_CSUM1 (cksum);
-  ack[HDR_LENGTH + TRLR_INDX_CSUM2] = TRLR_SET_CSUM2 (cksum);
-  ack[HDR_LENGTH + TRLR_INDX_CSUM3] = TRLR_SET_CSUM3 (cksum);
-
-  if (remote_debug > 0)
-    {
-      ack[HDR_LENGTH + TRLR_LENGTH] = '\0';
-      /* Don't use _filtered; we can't deal with a QUIT out of
-         target_wait, and I think this might be called from there.  */
-      printf_unfiltered ("Writing ack %d \"%s\"\n", mips_receive_seq,
-			 ack + 1);
-    }
-
-  if (serial_write (mips_desc, ack, HDR_LENGTH + TRLR_LENGTH) != 0)
-    {
-      if (throw_error)
-	mips_error ("write to target failed: %s", safe_strerror (errno));
-      else
-	return -1;
-    }
-
-  return len;
-}
-
-/* Optionally send a request to the remote system and optionally wait
-   for the reply.  This implements the remote debugging protocol,
-   which is built on top of the packet protocol defined above.  Each
-   request has an ADDR argument and a DATA argument.  The following
-   requests are defined:
-
-   \0   don't send a request; just wait for a reply
-   i    read word from instruction space at ADDR
-   d    read word from data space at ADDR
-   I    write DATA to instruction space at ADDR
-   D    write DATA to data space at ADDR
-   r    read register number ADDR
-   R    set register number ADDR to value DATA
-   c    continue execution (if ADDR != 1, set pc to ADDR)
-   s    single step (if ADDR != 1, set pc to ADDR)
-
-   The read requests return the value requested.  The write requests
-   return the previous value in the changed location.  The execution
-   requests return a UNIX wait value (the approximate signal which
-   caused execution to stop is in the upper eight bits).
-
-   If PERR is not NULL, this function waits for a reply.  If an error
-   occurs, it sets *PERR to 1 and sets errno according to what the
-   target board reports.  */
-
-static ULONGEST
-mips_request (int cmd,
-	      ULONGEST addr,
-	      ULONGEST data,
-	      int *perr,
-	      int timeout,
-	      char *buff)
-{
-  char myBuff[DATA_MAXLEN + 1];
-  int len;
-  int rpid;
-  char rcmd;
-  int rerrflg;
-  unsigned long rresponse;
-
-  if (buff == (char *) NULL)
-    buff = myBuff;
-
-  if (cmd != '\0')
-    {
-      if (mips_need_reply)
-	internal_error (__FILE__, __LINE__,
-			"mips_request: Trying to send command before reply");
-      sprintf (buff, "0x0 %c 0x%s 0x%s", cmd, paddr_nz (addr), paddr_nz (data));
-      mips_send_packet (buff, 1);
-      mips_need_reply = 1;
-    }
-
-  if (perr == (int *) NULL)
-    return 0;
-
-  if (!mips_need_reply)
-    internal_error (__FILE__, __LINE__,
-		    "mips_request: Trying to get reply before command");
-
-  mips_need_reply = 0;
-
-  len = mips_receive_packet (buff, 1, timeout);
-  buff[len] = '\0';
-
-  if (sscanf (buff, "0x%x %c 0x%x 0x%lx",
-	      &rpid, &rcmd, &rerrflg, &rresponse) != 4
-      || (cmd != '\0' && rcmd != cmd))
-    mips_error ("Bad response from remote board");
-
-  if (rerrflg != 0)
-    {
-      *perr = 1;
-
-      /* FIXME: This will returns MIPS errno numbers, which may or may
-         not be the same as errno values used on other systems.  If
-         they stick to common errno values, they will be the same, but
-         if they don't, they must be translated.  */
-      errno = rresponse;
-
-      return 0;
-    }
-
-  *perr = 0;
-  return rresponse;
-}
-
-static void
-mips_initialize_cleanups (PTR arg)
-{
-  mips_initializing = 0;
-}
-
-static void
-mips_exit_cleanups (PTR arg)
-{
-  mips_exiting = 0;
-}
-
-static void
-mips_send_command (const char *cmd, int prompt)
-{
-  serial_write (mips_desc, cmd, strlen (cmd));
-  mips_expect (cmd);
-  mips_expect ("\n");
-  if (prompt)
-    mips_expect (mips_monitor_prompt);
-}
-
-/* Enter remote (dbx) debug mode: */
-static void
-mips_enter_debug (void)
-{
-  /* Reset the sequence numbers, ready for the new debug sequence: */
-  mips_send_seq = 0;
-  mips_receive_seq = 0;
-
-  if (mips_monitor != MON_IDT)
-    mips_send_command ("debug\r", 0);
-  else				/* assume IDT monitor by default */
-    mips_send_command ("db tty0\r", 0);
-
-  sleep (1);
-  serial_write (mips_desc, "\r", sizeof "\r" - 1);
-
-  /* We don't need to absorb any spurious characters here, since the
-     mips_receive_header will eat up a reasonable number of characters
-     whilst looking for the SYN, however this avoids the "garbage"
-     being displayed to the user. */
-  if (mips_monitor != MON_IDT)
-    mips_expect ("\r");
-
-  {
-    char buff[DATA_MAXLEN + 1];
-    if (mips_receive_packet (buff, 1, 3) < 0)
-      mips_error ("Failed to initialize (didn't receive packet).");
-  }
-}
-
-/* Exit remote (dbx) debug mode, returning to the monitor prompt: */
-static int
-mips_exit_debug (void)
-{
-  int err;
-  struct cleanup *old_cleanups = make_cleanup (mips_exit_cleanups, NULL);
-
-  mips_exiting = 1;
-
-  if (mips_monitor != MON_IDT)
-    {
-      /* The DDB (NEC) and MiniRISC (LSI) versions of PMON exit immediately,
-         so we do not get a reply to this command: */
-      mips_request ('x', 0, 0, NULL, mips_receive_wait, NULL);
-      mips_need_reply = 0;
-      if (!mips_expect (" break!"))
-	return -1;
-    }
-  else
-    mips_request ('x', 0, 0, &err, mips_receive_wait, NULL);
-
-  if (!mips_expect (mips_monitor_prompt))
-    return -1;
-
-  do_cleanups (old_cleanups);
-
-  return 0;
-}
-
-/* Initialize a new connection to the MIPS board, and make sure we are
-   really connected.  */
-
-static void
-mips_initialize (void)
-{
-  int err;
-  struct cleanup *old_cleanups = make_cleanup (mips_initialize_cleanups, NULL);
-  int j;
-
-  /* What is this code doing here?  I don't see any way it can happen, and
-     it might mean mips_initializing didn't get cleared properly.
-     So I'll make it a warning.  */
-
-  if (mips_initializing)
-    {
-      warning ("internal error: mips_initialize called twice");
-      return;
-    }
-
-  mips_wait_flag = 0;
-  mips_initializing = 1;
-
-  /* At this point, the packit protocol isn't responding.  We'll try getting
-     into the monitor, and restarting the protocol.  */
-
-  /* Force the system into the monitor.  After this we *should* be at
-     the mips_monitor_prompt.  */
-  if (mips_monitor != MON_IDT)
-    j = 0;			/* start by checking if we are already at the prompt */
-  else
-    j = 1;			/* start by sending a break */
-  for (; j <= 4; j++)
-    {
-      switch (j)
-	{
-	case 0:		/* First, try sending a CR */
-	  serial_flush_input (mips_desc);
-	  serial_write (mips_desc, "\r", 1);
-	  break;
-	case 1:		/* First, try sending a break */
-	  serial_send_break (mips_desc);
-	  break;
-	case 2:		/* Then, try a ^C */
-	  serial_write (mips_desc, "\003", 1);
-	  break;
-	case 3:		/* Then, try escaping from download */
-	  {
-	    if (mips_monitor != MON_IDT)
-	      {
-		char tbuff[7];
-
-		/* We shouldn't need to send multiple termination
-		   sequences, since the target performs line (or
-		   block) reads, and then processes those
-		   packets. In-case we were downloading a large packet
-		   we flush the output buffer before inserting a
-		   termination sequence. */
-		serial_flush_output (mips_desc);
-		sprintf (tbuff, "\r/E/E\r");
-		serial_write (mips_desc, tbuff, 6);
-	      }
-	    else
-	      {
-		char srec[10];
-		int i;
-
-		/* We are possibly in binary download mode, having
-		   aborted in the middle of an S-record.  ^C won't
-		   work because of binary mode.  The only reliable way
-		   out is to send enough termination packets (8 bytes)
-		   to fill up and then overflow the largest size
-		   S-record (255 bytes in this case).  This amounts to
-		   256/8 + 1 packets.
-		 */
-
-		mips_make_srec (srec, '7', 0, NULL, 0);
-
-		for (i = 1; i <= 33; i++)
-		  {
-		    serial_write (mips_desc, srec, 8);
-
-		    if (serial_readchar (mips_desc, 0) >= 0)
-		      break;	/* Break immediatly if we get something from
-				   the board. */
-		  }
-	      }
-	  }
-	  break;
-	case 4:
-	  mips_error ("Failed to initialize.");
-	}
-
-      if (mips_expect (mips_monitor_prompt))
-	break;
-    }
-
-  if (mips_monitor != MON_IDT)
-    {
-      /* Sometimes PMON ignores the first few characters in the first
-         command sent after a load.  Sending a blank command gets
-         around that.  */
-      mips_send_command ("\r", -1);
-
-      /* Ensure the correct target state: */
-      if (mips_monitor != MON_LSI)
-	mips_send_command ("set regsize 64\r", -1);
-      mips_send_command ("set hostport tty0\r", -1);
-      mips_send_command ("set brkcmd \"\"\r", -1);
-      /* Delete all the current breakpoints: */
-      mips_send_command ("db *\r", -1);
-      /* NOTE: PMON does not have breakpoint support through the
-         "debug" mode, only at the monitor command-line. */
-    }
-
-  mips_enter_debug ();
-
-  /* Clear all breakpoints: */
-  if ((mips_monitor == MON_IDT
-       && clear_breakpoint (-1, 0, BREAK_UNUSED) == 0)
-      || mips_monitor == MON_LSI)
-    monitor_supports_breakpoints = 1;
-  else
-    monitor_supports_breakpoints = 0;
-
-  do_cleanups (old_cleanups);
-
-  /* If this doesn't call error, we have connected; we don't care if
-     the request itself succeeds or fails.  */
-
-  mips_request ('r', 0, 0, &err, mips_receive_wait, NULL);
-  set_current_frame (create_new_frame (read_fp (), read_pc ()));
-  select_frame (get_current_frame ());
-}
-
-/* Open a connection to the remote board.  */
-static void
-common_open (struct target_ops *ops, char *name, int from_tty,
-	     enum mips_monitor_type new_monitor,
-	     const char *new_monitor_prompt)
-{
-  char *ptype;
-  char *serial_port_name;
-  char *remote_name = 0;
-  char *local_name = 0;
-  char **argv;
-
-  if (name == 0)
-    error (
-	    "To open a MIPS remote debugging connection, you need to specify what serial\n\
-device is attached to the target board (e.g., /dev/ttya).\n"
-	    "If you want to use TFTP to download to the board, specify the name of a\n"
-	    "temporary file to be used by GDB for downloads as the second argument.\n"
-	    "This filename must be in the form host:filename, where host is the name\n"
-	    "of the host running the TFTP server, and the file must be readable by the\n"
-	    "world.  If the local name of the temporary file differs from the name as\n"
-	    "seen from the board via TFTP, specify that name as the third parameter.\n");
-
-  /* Parse the serial port name, the optional TFTP name, and the
-     optional local TFTP name.  */
-  if ((argv = buildargv (name)) == NULL)
-    nomem (0);
-  make_cleanup_freeargv (argv);
-
-  serial_port_name = xstrdup (argv[0]);
-  if (argv[1])			/* remote TFTP name specified? */
-    {
-      remote_name = argv[1];
-      if (argv[2])		/* local TFTP filename specified? */
-	local_name = argv[2];
-    }
-
-  target_preopen (from_tty);
-
-  if (mips_is_open)
-    unpush_target (current_ops);
-
-  /* Open and initialize the serial port.  */
-  mips_desc = serial_open (serial_port_name);
-  if (mips_desc == NULL)
-    perror_with_name (serial_port_name);
-
-  if (baud_rate != -1)
-    {
-      if (serial_setbaudrate (mips_desc, baud_rate))
-	{
-	  serial_close (mips_desc);
-	  perror_with_name (serial_port_name);
-	}
-    }
-
-  serial_raw (mips_desc);
-
-  /* Open and initialize the optional download port.  If it is in the form
-     hostname#portnumber, it's a UDP socket.  If it is in the form
-     hostname:filename, assume it's the TFTP filename that must be
-     passed to the DDB board to tell it where to get the load file.  */
-  if (remote_name)
-    {
-      if (strchr (remote_name, '#'))
-	{
-	  udp_desc = serial_open (remote_name);
-	  if (!udp_desc)
-	    perror_with_name ("Unable to open UDP port");
-	  udp_in_use = 1;
-	}
-      else
-	{
-	  /* Save the remote and local names of the TFTP temp file.  If
-	     the user didn't specify a local name, assume it's the same
-	     as the part of the remote name after the "host:".  */
-	  if (tftp_name)
-	    xfree (tftp_name);
-	  if (tftp_localname)
-	    xfree (tftp_localname);
-	  if (local_name == NULL)
-	    if ((local_name = strchr (remote_name, ':')) != NULL)
-	      local_name++;	/* skip over the colon */
-	  if (local_name == NULL)
-	    local_name = remote_name;	/* local name same as remote name */
-	  tftp_name = xstrdup (remote_name);
-	  tftp_localname = xstrdup (local_name);
-	  tftp_in_use = 1;
-	}
-    }
-
-  current_ops = ops;
-  mips_is_open = 1;
-
-  /* Reset the expected monitor prompt if it's never been set before.  */
-  if (mips_monitor_prompt == NULL)
-    mips_monitor_prompt = xstrdup (new_monitor_prompt);
-  mips_monitor = new_monitor;
-
-  mips_initialize ();
-
-  if (from_tty)
-    printf_unfiltered ("Remote MIPS debugging using %s\n", serial_port_name);
-
-  /* Switch to using remote target now.  */
-  push_target (ops);
-
-  /* FIXME: Should we call start_remote here?  */
-
-  /* Try to figure out the processor model if possible.  */
-  ptype = mips_read_processor_type ();
-  if (ptype)
-    mips_set_processor_type_command (xstrdup (ptype), 0);
-
-/* This is really the job of start_remote however, that makes an assumption
-   that the target is about to print out a status message of some sort.  That
-   doesn't happen here (in fact, it may not be possible to get the monitor to
-   send the appropriate packet).  */
-
-  flush_cached_frames ();
-  registers_changed ();
-  stop_pc = read_pc ();
-  set_current_frame (create_new_frame (read_fp (), stop_pc));
-  select_frame (get_current_frame ());
-  print_stack_frame (selected_frame, -1, 1);
-  xfree (serial_port_name);
-}
-
-static void
-mips_open (char *name, int from_tty)
-{
-  const char *monitor_prompt = NULL;
-  if (TARGET_ARCHITECTURE != NULL
-      && TARGET_ARCHITECTURE->arch == bfd_arch_mips)
-    {
-    switch (TARGET_ARCHITECTURE->mach)
-      {
-      case bfd_mach_mips4100:
-      case bfd_mach_mips4300:
-      case bfd_mach_mips4600:
-      case bfd_mach_mips4650:
-      case bfd_mach_mips5000:
-	monitor_prompt = "<RISQ> ";
-	break;
-      }
-    }
-  if (monitor_prompt == NULL)
-    monitor_prompt = "<IDT>";
-  common_open (&mips_ops, name, from_tty, MON_IDT, monitor_prompt);
-}
-
-static void
-pmon_open (char *name, int from_tty)
-{
-  common_open (&pmon_ops, name, from_tty, MON_PMON, "PMON> ");
-}
-
-static void
-ddb_open (char *name, int from_tty)
-{
-  common_open (&ddb_ops, name, from_tty, MON_DDB, "NEC010>");
-}
-
-static void
-lsi_open (char *name, int from_tty)
-{
-  int i;
-
-  /* Clear the LSI breakpoint table.  */
-  for (i = 0; i < MAX_LSI_BREAKPOINTS; i++)
-    lsi_breakpoints[i].type = BREAK_UNUSED;
-
-  common_open (&lsi_ops, name, from_tty, MON_LSI, "PMON> ");
-}
-
-/* Close a connection to the remote board.  */
-
-static void
-mips_close (int quitting)
-{
-  if (mips_is_open)
-    {
-      /* Get the board out of remote debugging mode.  */
-      (void) mips_exit_debug ();
-
-      close_ports ();
-    }
-}
-
-/* Detach from the remote board.  */
-
-static void
-mips_detach (char *args, int from_tty)
-{
-  if (args)
-    error ("Argument given to \"detach\" when remotely debugging.");
-
-  pop_target ();
-
-  mips_close (1);
-
-  if (from_tty)
-    printf_unfiltered ("Ending remote MIPS debugging.\n");
-}
-
-/* Tell the target board to resume.  This does not wait for a reply
-   from the board, except in the case of single-stepping on LSI boards,
-   where PMON does return a reply.  */
-
-static void
-mips_resume (ptid_t ptid, int step, enum target_signal siggnal)
-{
-  int err;
-
-  /* LSI PMON requires returns a reply packet "0x1 s 0x0 0x57f" after
-     a single step, so we wait for that.  */
-  mips_request (step ? 's' : 'c', 1, siggnal,
-		mips_monitor == MON_LSI && step ? &err : (int *) NULL,
-		mips_receive_wait, NULL);
-}
-
-/* Return the signal corresponding to SIG, where SIG is the number which
-   the MIPS protocol uses for the signal.  */
-enum target_signal
-mips_signal_from_protocol (int sig)
-{
-  /* We allow a few more signals than the IDT board actually returns, on
-     the theory that there is at least *some* hope that perhaps the numbering
-     for these signals is widely agreed upon.  */
-  if (sig <= 0
-      || sig > 31)
-    return TARGET_SIGNAL_UNKNOWN;
-
-  /* Don't want to use target_signal_from_host because we are converting
-     from MIPS signal numbers, not host ones.  Our internal numbers
-     match the MIPS numbers for the signals the board can return, which
-     are: SIGINT, SIGSEGV, SIGBUS, SIGILL, SIGFPE, SIGTRAP.  */
-  return (enum target_signal) sig;
-}
-
-/* Wait until the remote stops, and return a wait status.  */
-
-static ptid_t
-mips_wait (ptid_t ptid, struct target_waitstatus *status)
-{
-  int rstatus;
-  int err;
-  char buff[DATA_MAXLEN];
-  int rpc, rfp, rsp;
-  char flags[20];
-  int nfields;
-  int i;
-
-  interrupt_count = 0;
-  hit_watchpoint = 0;
-
-  /* If we have not sent a single step or continue command, then the
-     board is waiting for us to do something.  Return a status
-     indicating that it is stopped.  */
-  if (!mips_need_reply)
-    {
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_TRAP;
-      return inferior_ptid;
-    }
-
-  /* No timeout; we sit here as long as the program continues to execute.  */
-  mips_wait_flag = 1;
-  rstatus = mips_request ('\000', 0, 0, &err, -1, buff);
-  mips_wait_flag = 0;
-  if (err)
-    mips_error ("Remote failure: %s", safe_strerror (errno));
-
-  /* On returning from a continue, the PMON monitor seems to start
-     echoing back the messages we send prior to sending back the
-     ACK. The code can cope with this, but to try and avoid the
-     unnecessary serial traffic, and "spurious" characters displayed
-     to the user, we cheat and reset the debug protocol. The problems
-     seems to be caused by a check on the number of arguments, and the
-     command length, within the monitor causing it to echo the command
-     as a bad packet. */
-  if (mips_monitor == MON_PMON)
-    {
-      mips_exit_debug ();
-      mips_enter_debug ();
-    }
-
-  /* See if we got back extended status.  If so, pick out the pc, fp, sp, etc... */
-
-  nfields = sscanf (buff, "0x%*x %*c 0x%*x 0x%*x 0x%x 0x%x 0x%x 0x%*x %s",
-		    &rpc, &rfp, &rsp, flags);
-  if (nfields >= 3)
-    {
-      char buf[MAX_REGISTER_RAW_SIZE];
-
-      store_unsigned_integer (buf, REGISTER_RAW_SIZE (PC_REGNUM), rpc);
-      supply_register (PC_REGNUM, buf);
-
-      store_unsigned_integer (buf, REGISTER_RAW_SIZE (PC_REGNUM), rfp);
-      supply_register (30, buf);	/* This register they are avoiding and so it is unnamed */
-
-      store_unsigned_integer (buf, REGISTER_RAW_SIZE (SP_REGNUM), rsp);
-      supply_register (SP_REGNUM, buf);
-
-      store_unsigned_integer (buf, REGISTER_RAW_SIZE (FP_REGNUM), 0);
-      supply_register (FP_REGNUM, buf);
-
-      if (nfields == 9)
-	{
-	  int i;
-
-	  for (i = 0; i <= 2; i++)
-	    if (flags[i] == 'r' || flags[i] == 'w')
-	      hit_watchpoint = 1;
-	    else if (flags[i] == '\000')
-	      break;
-	}
-    }
-
-  if (strcmp (target_shortname, "lsi") == 0)
-    {
-#if 0
-      /* If this is an LSI PMON target, see if we just hit a hardrdware watchpoint.
-         Right now, PMON doesn't give us enough information to determine which
-         breakpoint we hit.  So we have to look up the PC in our own table
-         of breakpoints, and if found, assume it's just a normal instruction
-         fetch breakpoint, not a data watchpoint.  FIXME when PMON
-         provides some way to tell us what type of breakpoint it is.  */
-      int i;
-      CORE_ADDR pc = read_pc ();
-
-      hit_watchpoint = 1;
-      for (i = 0; i < MAX_LSI_BREAKPOINTS; i++)
-	{
-	  if (lsi_breakpoints[i].addr == pc
-	      && lsi_breakpoints[i].type == BREAK_FETCH)
-	    {
-	      hit_watchpoint = 0;
-	      break;
-	    }
-	}
-#else
-      /* If a data breakpoint was hit, PMON returns the following packet:
-         0x1 c 0x0 0x57f 0x1
-         The return packet from an ordinary breakpoint doesn't have the
-         extra 0x01 field tacked onto the end.  */
-      if (nfields == 1 && rpc == 1)
-	hit_watchpoint = 1;
-#endif
-    }
-
-  /* NOTE: The following (sig) numbers are defined by PMON:
-     SPP_SIGTRAP     5       breakpoint
-     SPP_SIGINT      2
-     SPP_SIGSEGV     11
-     SPP_SIGBUS      10
-     SPP_SIGILL      4
-     SPP_SIGFPE      8
-     SPP_SIGTERM     15 */
-
-  /* Translate a MIPS waitstatus.  We use constants here rather than WTERMSIG
-     and so on, because the constants we want here are determined by the
-     MIPS protocol and have nothing to do with what host we are running on.  */
-  if ((rstatus & 0xff) == 0)
-    {
-      status->kind = TARGET_WAITKIND_EXITED;
-      status->value.integer = (((rstatus) >> 8) & 0xff);
-    }
-  else if ((rstatus & 0xff) == 0x7f)
-    {
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = mips_signal_from_protocol (((rstatus) >> 8) & 0xff);
-
-      /* If the stop PC is in the _exit function, assume
-         we hit the 'break 0x3ff' instruction in _exit, so this
-         is not a normal breakpoint.  */
-      if (strcmp (target_shortname, "lsi") == 0)
-	{
-	  char *func_name;
-	  CORE_ADDR func_start;
-	  CORE_ADDR pc = read_pc ();
-
-	  find_pc_partial_function (pc, &func_name, &func_start, NULL);
-	  if (func_name != NULL && strcmp (func_name, "_exit") == 0
-	      && func_start == pc)
-	    status->kind = TARGET_WAITKIND_EXITED;
-	}
-    }
-  else
-    {
-      status->kind = TARGET_WAITKIND_SIGNALLED;
-      status->value.sig = mips_signal_from_protocol (rstatus & 0x7f);
-    }
-
-  return inferior_ptid;
-}
-
-/* We have to map between the register numbers used by gdb and the
-   register numbers used by the debugging protocol.  This function
-   assumes that we are using tm-mips.h.  */
-
-#define REGNO_OFFSET 96
-
-static int
-mips_map_regno (int regno)
-{
-  if (regno < 32)
-    return regno;
-  if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32)
-    return regno - FP0_REGNUM + 32;
-  switch (regno)
-    {
-    case PC_REGNUM:
-      return REGNO_OFFSET + 0;
-    case CAUSE_REGNUM:
-      return REGNO_OFFSET + 1;
-    case HI_REGNUM:
-      return REGNO_OFFSET + 2;
-    case LO_REGNUM:
-      return REGNO_OFFSET + 3;
-    case FCRCS_REGNUM:
-      return REGNO_OFFSET + 4;
-    case FCRIR_REGNUM:
-      return REGNO_OFFSET + 5;
-    default:
-      /* FIXME: Is there a way to get the status register?  */
-      return 0;
-    }
-}
-
-/* Fetch the remote registers.  */
-
-static void
-mips_fetch_registers (int regno)
-{
-  unsigned LONGEST val;
-  int err;
-
-  if (regno == -1)
-    {
-      for (regno = 0; regno < NUM_REGS; regno++)
-	mips_fetch_registers (regno);
-      return;
-    }
-
-  if (regno == FP_REGNUM || regno == ZERO_REGNUM)
-    /* FP_REGNUM on the mips is a hack which is just supposed to read
-       zero (see also mips-nat.c).  */
-    val = 0;
-  else
-    {
-      /* If PMON doesn't support this register, don't waste serial
-         bandwidth trying to read it.  */
-      int pmon_reg = mips_map_regno (regno);
-      if (regno != 0 && pmon_reg == 0)
-	val = 0;
-      else
-	{
-	  /* Unfortunately the PMON version in the Vr4300 board has been
-	     compiled without the 64bit register access commands. This
-	     means we cannot get hold of the full register width. */
-	  if (mips_monitor == MON_DDB)
-	    val = (unsigned) mips_request ('t', pmon_reg, 0,
-					   &err, mips_receive_wait, NULL);
-	  else
-	    val = mips_request ('r', pmon_reg, 0,
-				&err, mips_receive_wait, NULL);
-	  if (err)
-	    mips_error ("Can't read register %d: %s", regno,
-			safe_strerror (errno));
-	}
-    }
-
-  {
-    char buf[MAX_REGISTER_RAW_SIZE];
-
-    /* We got the number the register holds, but gdb expects to see a
-       value in the target byte ordering.  */
-    store_unsigned_integer (buf, REGISTER_RAW_SIZE (regno), val);
-    supply_register (regno, buf);
-  }
-}
-
-/* Prepare to store registers.  The MIPS protocol can store individual
-   registers, so this function doesn't have to do anything.  */
-
-static void
-mips_prepare_to_store (void)
-{
-}
-
-/* Store remote register(s).  */
-
-static void
-mips_store_registers (int regno)
-{
-  int err;
-
-  if (regno == -1)
-    {
-      for (regno = 0; regno < NUM_REGS; regno++)
-	mips_store_registers (regno);
-      return;
-    }
-
-  mips_request ('R', mips_map_regno (regno),
-		read_register (regno),
-		&err, mips_receive_wait, NULL);
-  if (err)
-    mips_error ("Can't write register %d: %s", regno, safe_strerror (errno));
-}
-
-/* Fetch a word from the target board.  */
-
-static unsigned int
-mips_fetch_word (CORE_ADDR addr)
-{
-  unsigned int val;
-  int err;
-
-  val = mips_request ('d', addr, 0, &err, mips_receive_wait, NULL);
-  if (err)
-    {
-      /* Data space failed; try instruction space.  */
-      val = mips_request ('i', addr, 0, &err,
-			  mips_receive_wait, NULL);
-      if (err)
-	mips_error ("Can't read address 0x%s: %s",
-		    paddr_nz (addr), safe_strerror (errno));
-    }
-  return val;
-}
-
-/* Store a word to the target board.  Returns errno code or zero for
-   success.  If OLD_CONTENTS is non-NULL, put the old contents of that
-   memory location there.  */
-
-/* FIXME! make sure only 32-bit quantities get stored! */
-static int
-mips_store_word (CORE_ADDR addr, unsigned int val, char *old_contents)
-{
-  int err;
-  unsigned int oldcontents;
-
-  oldcontents = mips_request ('D', addr, val, &err,
-			      mips_receive_wait, NULL);
-  if (err)
-    {
-      /* Data space failed; try instruction space.  */
-      oldcontents = mips_request ('I', addr, val, &err,
-				  mips_receive_wait, NULL);
-      if (err)
-	return errno;
-    }
-  if (old_contents != NULL)
-    store_unsigned_integer (old_contents, 4, oldcontents);
-  return 0;
-}
-
-/* Read or write LEN bytes from inferior memory at MEMADDR,
-   transferring to or from debugger address MYADDR.  Write to inferior
-   if SHOULD_WRITE is nonzero.  Returns length of data written or
-   read; 0 for error.  Note that protocol gives us the correct value
-   for a longword, since it transfers values in ASCII.  We want the
-   byte values, so we have to swap the longword values.  */
-
-static int mask_address_p = 1;
-
-static int
-mips_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
-		  struct mem_attrib *attrib, struct target_ops *target)
-{
-  int i;
-  CORE_ADDR addr;
-  int count;
-  char *buffer;
-  int status;
-
-  /* PMON targets do not cope well with 64 bit addresses.  Mask the
-     value down to 32 bits. */
-  if (mask_address_p)
-    memaddr &= (CORE_ADDR) 0xffffffff;
-
-  /* Round starting address down to longword boundary.  */
-  addr = memaddr & ~3;
-  /* Round ending address up; get number of longwords that makes.  */
-  count = (((memaddr + len) - addr) + 3) / 4;
-  /* Allocate buffer of that many longwords.  */
-  buffer = alloca (count * 4);
-
-  if (write)
-    {
-      /* Fill start and end extra bytes of buffer with existing data.  */
-      if (addr != memaddr || len < 4)
-	{
-	  /* Need part of initial word -- fetch it.  */
-	  store_unsigned_integer (&buffer[0], 4, mips_fetch_word (addr));
-	}
-
-      if (count > 1)
-	{
-	  /* Need part of last word -- fetch it.  FIXME: we do this even
-	     if we don't need it.  */
-	  store_unsigned_integer (&buffer[(count - 1) * 4], 4,
-				  mips_fetch_word (addr + (count - 1) * 4));
-	}
-
-      /* Copy data to be written over corresponding part of buffer */
-
-      memcpy ((char *) buffer + (memaddr & 3), myaddr, len);
-
-      /* Write the entire buffer.  */
-
-      for (i = 0; i < count; i++, addr += 4)
-	{
-	  status = mips_store_word (addr,
-			       extract_unsigned_integer (&buffer[i * 4], 4),
-				    NULL);
-	  /* Report each kilobyte (we download 32-bit words at a time) */
-	  if (i % 256 == 255)
-	    {
-	      printf_unfiltered ("*");
-	      gdb_flush (gdb_stdout);
-	    }
-	  if (status)
-	    {
-	      errno = status;
-	      return 0;
-	    }
-	  /* FIXME: Do we want a QUIT here?  */
-	}
-      if (count >= 256)
-	printf_unfiltered ("\n");
-    }
-  else
-    {
-      /* Read all the longwords */
-      for (i = 0; i < count; i++, addr += 4)
-	{
-	  store_unsigned_integer (&buffer[i * 4], 4, mips_fetch_word (addr));
-	  QUIT;
-	}
-
-      /* Copy appropriate bytes out of the buffer.  */
-      memcpy (myaddr, buffer + (memaddr & 3), len);
-    }
-  return len;
-}
-
-/* Print info on this target.  */
-
-static void
-mips_files_info (struct target_ops *ignore)
-{
-  printf_unfiltered ("Debugging a MIPS board over a serial line.\n");
-}
-
-/* Kill the process running on the board.  This will actually only
-   work if we are doing remote debugging over the console input.  I
-   think that if IDT/sim had the remote debug interrupt enabled on the
-   right port, we could interrupt the process with a break signal.  */
-
-static void
-mips_kill (void)
-{
-  if (!mips_wait_flag)
-    return;
-
-  interrupt_count++;
-
-  if (interrupt_count >= 2)
-    {
-      interrupt_count = 0;
-
-      target_terminal_ours ();
-
-      if (query ("Interrupted while waiting for the program.\n\
-Give up (and stop debugging it)? "))
-	{
-	  /* Clean up in such a way that mips_close won't try to talk to the
-	     board (it almost surely won't work since we weren't able to talk to
-	     it).  */
-	  mips_wait_flag = 0;
-	  close_ports ();
-
-	  printf_unfiltered ("Ending remote MIPS debugging.\n");
-	  target_mourn_inferior ();
-
-	  throw_exception (RETURN_QUIT);
-	}
-
-      target_terminal_inferior ();
-    }
-
-  if (remote_debug > 0)
-    printf_unfiltered ("Sending break\n");
-
-  serial_send_break (mips_desc);
-
-#if 0
-  if (mips_is_open)
-    {
-      char cc;
-
-      /* Send a ^C.  */
-      cc = '\003';
-      serial_write (mips_desc, &cc, 1);
-      sleep (1);
-      target_mourn_inferior ();
-    }
-#endif
-}
-
-/* Start running on the target board.  */
-
-static void
-mips_create_inferior (char *execfile, char *args, char **env)
-{
-  CORE_ADDR entry_pt;
-
-  if (args && *args)
-    {
-      warning ("\
-Can't pass arguments to remote MIPS board; arguments ignored.");
-      /* And don't try to use them on the next "run" command.  */
-      execute_command ("set args", 0);
-    }
-
-  if (execfile == 0 || exec_bfd == 0)
-    error ("No executable file specified");
-
-  entry_pt = (CORE_ADDR) bfd_get_start_address (exec_bfd);
-
-  init_wait_for_inferior ();
-
-  /* FIXME: Should we set inferior_ptid here?  */
-
-  proceed (entry_pt, TARGET_SIGNAL_DEFAULT, 0);
-}
-
-/* Clean up after a process.  Actually nothing to do.  */
-
-static void
-mips_mourn_inferior (void)
-{
-  if (current_ops != NULL)
-    unpush_target (current_ops);
-  generic_mourn_inferior ();
-}
-
-/* We can write a breakpoint and read the shadow contents in one
-   operation.  */
-
-/* Insert a breakpoint.  On targets that don't have built-in breakpoint
-   support, we read the contents of the target location and stash it,
-   then overwrite it with a breakpoint instruction.  ADDR is the target
-   location in the target machine.  CONTENTS_CACHE is a pointer to 
-   memory allocated for saving the target contents.  It is guaranteed
-   by the caller to be long enough to save sizeof BREAKPOINT bytes (this
-   is accomplished via BREAKPOINT_MAX).  */
-
-static int
-mips_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
-  if (monitor_supports_breakpoints)
-    return set_breakpoint (addr, MIPS_INSTLEN, BREAK_FETCH);
-  else
-    return memory_insert_breakpoint (addr, contents_cache);
-}
-
-static int
-mips_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
-  if (monitor_supports_breakpoints)
-    return clear_breakpoint (addr, MIPS_INSTLEN, BREAK_FETCH);
-  else
-    return memory_remove_breakpoint (addr, contents_cache);
-}
-
-#if 0				/* currently not used */
-/* PMON does not currently provide support for the debug mode 'b'
-   commands to manipulate breakpoints. However, if we wanted to use
-   the monitor breakpoints (rather than the GDB BREAK_INSN version)
-   then this code performs the work needed to leave debug mode,
-   set/clear the breakpoint, and then return to debug mode. */
-
-#define PMON_MAX_BP (33)	/* 32 SW, 1 HW */
-static CORE_ADDR mips_pmon_bp_info[PMON_MAX_BP];
-/* NOTE: The code relies on this vector being zero-initialised by the system */
-
-static int
-pmon_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
-  int status;
-
-  if (monitor_supports_breakpoints)
-    {
-      char tbuff[12];		/* space for breakpoint command */
-      int bpnum;
-      CORE_ADDR bpaddr;
-
-      /* PMON does not support debug level breakpoint set/remove: */
-      if (mips_exit_debug ())
-	mips_error ("Failed to exit debug mode");
-
-      sprintf (tbuff, "b %08x\r", addr);
-      mips_send_command (tbuff, 0);
-
-      mips_expect ("Bpt ");
-
-      if (!mips_getstring (tbuff, remote_timeout))
-	return 1;
-      tbuff[2] = '\0';		/* terminate the string */
-      if (sscanf (tbuff, "%d", &bpnum) != 1)
-	{
-	  fprintf_unfiltered (gdb_stderr,
-	      "Invalid decimal breakpoint number from target: %s\n", tbuff);
-	  return 1;
-	}
-
-      mips_expect (" = ");
-
-      /* Lead in the hex number we are expecting: */
-      tbuff[0] = '0';
-      tbuff[1] = 'x';
-
-      /* FIXME!! only 8 bytes!  need to expand for Bfd64; 
-         which targets return 64-bit addresses?  PMON returns only 32! */
-      if (!mips_getstring (&tbuff[2], 8))
-	return 1;
-      tbuff[10] = '\0';		/* terminate the string */
-
-      if (sscanf (tbuff, "0x%08x", &bpaddr) != 1)
-	{
-	  fprintf_unfiltered (gdb_stderr,
-			    "Invalid hex address from target: %s\n", tbuff);
-	  return 1;
-	}
-
-      if (bpnum >= PMON_MAX_BP)
-	{
-	  fprintf_unfiltered (gdb_stderr,
-			      "Error: Returned breakpoint number %d outside acceptable range (0..%d)\n",
-			      bpnum, PMON_MAX_BP - 1);
-	  return 1;
-	}
-
-      if (bpaddr != addr)
-	fprintf_unfiltered (gdb_stderr, "Warning: Breakpoint addresses do not match: 0x%x != 0x%x\n", addr, bpaddr);
-
-      mips_pmon_bp_info[bpnum] = bpaddr;
-
-      mips_expect ("\r\n");
-      mips_expect (mips_monitor_prompt);
-
-      mips_enter_debug ();
-
-      return 0;
-    }
-
-  return mips_store_word (addr, BREAK_INSN, contents_cache);
-}
-
-static int
-pmon_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
-  if (monitor_supports_breakpoints)
-    {
-      int bpnum;
-      char tbuff[7];		/* enough for delete breakpoint command */
-
-      for (bpnum = 0; bpnum < PMON_MAX_BP; bpnum++)
-	if (mips_pmon_bp_info[bpnum] == addr)
-	  break;
-
-      if (bpnum >= PMON_MAX_BP)
-	{
-	  fprintf_unfiltered (gdb_stderr,
-			      "pmon_remove_breakpoint: Failed to find breakpoint at address 0x%s\n",
-			      paddr_nz (addr));
-	  return 1;
-	}
-
-      if (mips_exit_debug ())
-	mips_error ("Failed to exit debug mode");
-
-      sprintf (tbuff, "db %02d\r", bpnum);
-
-      mips_send_command (tbuff, -1);
-      /* NOTE: If the breakpoint does not exist then a "Bpt <dd> not
-         set" message will be returned. */
-
-      mips_enter_debug ();
-
-      return 0;
-    }
-
-  return target_write_memory (addr, contents_cache, BREAK_INSN_SIZE);
-}
-#endif
-
-
-/* Tell whether this target can support a hardware breakpoint.  CNT
-   is the number of hardware breakpoints already installed.  This
-   implements the TARGET_CAN_USE_HARDWARE_WATCHPOINT macro.  */
-
-int
-remote_mips_can_use_hardware_watchpoint (int cnt)
-{
-  return cnt < MAX_LSI_BREAKPOINTS && strcmp (target_shortname, "lsi") == 0;
-}
-
-
-/* Compute a don't care mask for the region bounding ADDR and ADDR + LEN - 1.
-   This is used for memory ref breakpoints.  */
-
-static unsigned long
-calculate_mask (CORE_ADDR addr, int len)
-{
-  unsigned long mask;
-  int i;
-
-  mask = addr ^ (addr + len - 1);
-
-  for (i = 32; i >= 0; i--)
-    if (mask == 0)
-      break;
-    else
-      mask >>= 1;
-
-  mask = (unsigned long) 0xffffffff >> i;
-
-  return mask;
-}
-
-
-/* Insert a hardware breakpoint.  This works only on LSI targets, which
-   implement ordinary breakpoints using hardware facilities.  */
-
-int
-remote_mips_insert_hw_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
-  if (strcmp (target_shortname, "lsi") == 0)
-    return mips_insert_breakpoint (addr, contents_cache);
-  else
-    return -1;
-}
-
-
-/* Remove a hardware breakpoint.  This works only on LSI targets, which
-   implement ordinary breakpoints using hardware facilities.  */
-
-int
-remote_mips_remove_hw_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
-  if (strcmp (target_shortname, "lsi") == 0)
-    return mips_remove_breakpoint (addr, contents_cache);
-  else
-    return -1;
-}
-
-/* Set a data watchpoint.  ADDR and LEN should be obvious.  TYPE is 0
-   for a write watchpoint, 1 for a read watchpoint, or 2 for a read/write
-   watchpoint. */
-
-int
-remote_mips_set_watchpoint (CORE_ADDR addr, int len, int type)
-{
-  if (set_breakpoint (addr, len, type))
-    return -1;
-
-  return 0;
-}
-
-int
-remote_mips_remove_watchpoint (CORE_ADDR addr, int len, int type)
-{
-  if (clear_breakpoint (addr, len, type))
-    return -1;
-
-  return 0;
-}
-
-int
-remote_mips_stopped_by_watchpoint (void)
-{
-  return hit_watchpoint;
-}
-
-
-/* Insert a breakpoint.  */
-
-static int
-set_breakpoint (CORE_ADDR addr, int len, enum break_type type)
-{
-  return common_breakpoint (1, addr, len, type);
-}
-
-
-/* Clear a breakpoint.  */
-
-static int
-clear_breakpoint (CORE_ADDR addr, int len, enum break_type type)
-{
-  return common_breakpoint (0, addr, len, type);
-}
-
-
-/* Check the error code from the return packet for an LSI breakpoint
-   command.  If there's no error, just return 0.  If it's a warning,
-   print the warning text and return 0.  If it's an error, print
-   the error text and return 1.  <ADDR> is the address of the breakpoint
-   that was being set.  <RERRFLG> is the error code returned by PMON. 
-   This is a helper function for common_breakpoint.  */
-
-static int
-check_lsi_error (CORE_ADDR addr, int rerrflg)
-{
-  struct lsi_error *err;
-  char *saddr = paddr_nz (addr);	/* printable address string */
-
-  if (rerrflg == 0)		/* no error */
-    return 0;
-
-  /* Warnings can be ORed together, so check them all.  */
-  if (rerrflg & W_WARN)
-    {
-      if (monitor_warnings)
-	{
-	  int found = 0;
-	  for (err = lsi_warning_table; err->code != 0; err++)
-	    {
-	      if ((err->code & rerrflg) == err->code)
-		{
-		  found = 1;
-		  fprintf_unfiltered (gdb_stderr,
-				  "common_breakpoint (0x%s): Warning: %s\n",
-				      saddr,
-				      err->string);
-		}
-	    }
-	  if (!found)
-	    fprintf_unfiltered (gdb_stderr,
-			"common_breakpoint (0x%s): Unknown warning: 0x%x\n",
-				saddr,
-				rerrflg);
-	}
-      return 0;
-    }
-
-  /* Errors are unique, i.e. can't be ORed together.  */
-  for (err = lsi_error_table; err->code != 0; err++)
-    {
-      if ((err->code & rerrflg) == err->code)
-	{
-	  fprintf_unfiltered (gdb_stderr,
-			      "common_breakpoint (0x%s): Error: %s\n",
-			      saddr,
-			      err->string);
-	  return 1;
-	}
-    }
-  fprintf_unfiltered (gdb_stderr,
-		      "common_breakpoint (0x%s): Unknown error: 0x%x\n",
-		      saddr,
-		      rerrflg);
-  return 1;
-}
-
-
-/* This routine sends a breakpoint command to the remote target.
-
-   <SET> is 1 if setting a breakpoint, or 0 if clearing a breakpoint.
-   <ADDR> is the address of the breakpoint.
-   <LEN> the length of the region to break on.
-   <TYPE> is the type of breakpoint:
-   0 = write                    (BREAK_WRITE)
-   1 = read                     (BREAK_READ)
-   2 = read/write               (BREAK_ACCESS)
-   3 = instruction fetch        (BREAK_FETCH)
-
-   Return 0 if successful; otherwise 1.  */
-
-static int
-common_breakpoint (int set, CORE_ADDR addr, int len, enum break_type type)
-{
-  char buf[DATA_MAXLEN + 1];
-  char cmd, rcmd;
-  int rpid, rerrflg, rresponse, rlen;
-  int nfields;
-
-  addr = ADDR_BITS_REMOVE (addr);
-
-  if (mips_monitor == MON_LSI)
-    {
-      if (set == 0)		/* clear breakpoint */
-	{
-	  /* The LSI PMON "clear breakpoint" has this form:
-	     <pid> 'b' <bptn> 0x0
-	     reply:
-	     <pid> 'b' 0x0 <code>
-
-	     <bptn> is a breakpoint number returned by an earlier 'B' command.
-	     Possible return codes: OK, E_BPT.  */
-
-	  int i;
-
-	  /* Search for the breakpoint in the table.  */
-	  for (i = 0; i < MAX_LSI_BREAKPOINTS; i++)
-	    if (lsi_breakpoints[i].type == type
-		&& lsi_breakpoints[i].addr == addr
-		&& lsi_breakpoints[i].len == len)
-	      break;
-
-	  /* Clear the table entry and tell PMON to clear the breakpoint.  */
-	  if (i == MAX_LSI_BREAKPOINTS)
-	    {
-	      warning ("common_breakpoint: Attempt to clear bogus breakpoint at %s\n",
-		       paddr_nz (addr));
-	      return 1;
-	    }
-
-	  lsi_breakpoints[i].type = BREAK_UNUSED;
-	  sprintf (buf, "0x0 b 0x%x 0x0", i);
-	  mips_send_packet (buf, 1);
-
-	  rlen = mips_receive_packet (buf, 1, mips_receive_wait);
-	  buf[rlen] = '\0';
-
-	  nfields = sscanf (buf, "0x%x b 0x0 0x%x", &rpid, &rerrflg);
-	  if (nfields != 2)
-	    mips_error ("common_breakpoint: Bad response from remote board: %s", buf);
-
-	  return (check_lsi_error (addr, rerrflg));
-	}
-      else
-	/* set a breakpoint */
-	{
-	  /* The LSI PMON "set breakpoint" command has this form:
-	     <pid> 'B' <addr> 0x0
-	     reply:
-	     <pid> 'B' <bptn> <code>
-
-	     The "set data breakpoint" command has this form:
-
-	     <pid> 'A' <addr1> <type> [<addr2>  [<value>]]
-
-	     where: type= "0x1" = read
-	     "0x2" = write
-	     "0x3" = access (read or write)
-
-	     The reply returns two values:
-	     bptn - a breakpoint number, which is a small integer with
-	     possible values of zero through 255.
-	     code - an error return code, a value of zero indicates a
-	     succesful completion, other values indicate various
-	     errors and warnings.
-
-	     Possible return codes: OK, W_QAL, E_QAL, E_OUT, E_NON.  
-
-	   */
-
-	  if (type == BREAK_FETCH)	/* instruction breakpoint */
-	    {
-	      cmd = 'B';
-	      sprintf (buf, "0x0 B 0x%s 0x0", paddr_nz (addr));
-	    }
-	  else
-	    /* watchpoint */
-	    {
-	      cmd = 'A';
-	      sprintf (buf, "0x0 A 0x%s 0x%x 0x%s", paddr_nz (addr),
-		     type == BREAK_READ ? 1 : (type == BREAK_WRITE ? 2 : 3),
-		       paddr_nz (addr + len - 1));
-	    }
-	  mips_send_packet (buf, 1);
-
-	  rlen = mips_receive_packet (buf, 1, mips_receive_wait);
-	  buf[rlen] = '\0';
-
-	  nfields = sscanf (buf, "0x%x %c 0x%x 0x%x",
-			    &rpid, &rcmd, &rresponse, &rerrflg);
-	  if (nfields != 4 || rcmd != cmd || rresponse > 255)
-	    mips_error ("common_breakpoint: Bad response from remote board: %s", buf);
-
-	  if (rerrflg != 0)
-	    if (check_lsi_error (addr, rerrflg))
-	      return 1;
-
-	  /* rresponse contains PMON's breakpoint number.  Record the
-	     information for this breakpoint so we can clear it later.  */
-	  lsi_breakpoints[rresponse].type = type;
-	  lsi_breakpoints[rresponse].addr = addr;
-	  lsi_breakpoints[rresponse].len = len;
-
-	  return 0;
-	}
-    }
-  else
-    {
-      /* On non-LSI targets, the breakpoint command has this form:
-         0x0 <CMD> <ADDR> <MASK> <FLAGS>
-         <MASK> is a don't care mask for addresses.
-         <FLAGS> is any combination of `r', `w', or `f' for read/write/fetch.
-       */
-      unsigned long mask;
-
-      mask = calculate_mask (addr, len);
-      addr &= ~mask;
-
-      if (set)			/* set a breakpoint */
-	{
-	  char *flags;
-	  switch (type)
-	    {
-	    case BREAK_WRITE:	/* write */
-	      flags = "w";
-	      break;
-	    case BREAK_READ:	/* read */
-	      flags = "r";
-	      break;
-	    case BREAK_ACCESS:	/* read/write */
-	      flags = "rw";
-	      break;
-	    case BREAK_FETCH:	/* fetch */
-	      flags = "f";
-	      break;
-	    default:
-	      internal_error (__FILE__, __LINE__, "failed internal consistency check");
-	    }
-
-	  cmd = 'B';
-	  sprintf (buf, "0x0 B 0x%s 0x%s %s", paddr_nz (addr),
-		   paddr_nz (mask), flags);
-	}
-      else
-	{
-	  cmd = 'b';
-	  sprintf (buf, "0x0 b 0x%s", paddr_nz (addr));
-	}
-
-      mips_send_packet (buf, 1);
-
-      rlen = mips_receive_packet (buf, 1, mips_receive_wait);
-      buf[rlen] = '\0';
-
-      nfields = sscanf (buf, "0x%x %c 0x%x 0x%x",
-			&rpid, &rcmd, &rerrflg, &rresponse);
-
-      if (nfields != 4 || rcmd != cmd)
-	mips_error ("common_breakpoint: Bad response from remote board: %s",
-		    buf);
-
-      if (rerrflg != 0)
-	{
-	  /* Ddb returns "0x0 b 0x16 0x0\000", whereas
-	     Cogent returns "0x0 b 0xffffffff 0x16\000": */
-	  if (mips_monitor == MON_DDB)
-	    rresponse = rerrflg;
-	  if (rresponse != 22)	/* invalid argument */
-	    fprintf_unfiltered (gdb_stderr,
-			     "common_breakpoint (0x%s):  Got error: 0x%x\n",
-				paddr_nz (addr), rresponse);
-	  return 1;
-	}
-    }
-  return 0;
-}
-
-static void
-send_srec (char *srec, int len, CORE_ADDR addr)
-{
-  while (1)
-    {
-      int ch;
-
-      serial_write (mips_desc, srec, len);
-
-      ch = mips_readchar (remote_timeout);
-
-      switch (ch)
-	{
-	case SERIAL_TIMEOUT:
-	  error ("Timeout during download.");
-	  break;
-	case 0x6:		/* ACK */
-	  return;
-	case 0x15:		/* NACK */
-	  fprintf_unfiltered (gdb_stderr, "Download got a NACK at byte %s!  Retrying.\n", paddr_u (addr));
-	  continue;
-	default:
-	  error ("Download got unexpected ack char: 0x%x, retrying.\n", ch);
-	}
-    }
-}
-
-/*  Download a binary file by converting it to S records. */
-
-static void
-mips_load_srec (char *args)
-{
-  bfd *abfd;
-  asection *s;
-  char *buffer, srec[1024];
-  unsigned int i;
-  unsigned int srec_frame = 200;
-  int reclen;
-  static int hashmark = 1;
-
-  buffer = alloca (srec_frame * 2 + 256);
-
-  abfd = bfd_openr (args, 0);
-  if (!abfd)
-    {
-      printf_filtered ("Unable to open file %s\n", args);
-      return;
-    }
-
-  if (bfd_check_format (abfd, bfd_object) == 0)
-    {
-      printf_filtered ("File is not an object file\n");
-      return;
-    }
-
-/* This actually causes a download in the IDT binary format: */
-  mips_send_command (LOAD_CMD, 0);
-
-  for (s = abfd->sections; s; s = s->next)
-    {
-      if (s->flags & SEC_LOAD)
-	{
-	  unsigned int numbytes;
-
-	  /* FIXME!  vma too small????? */
-	  printf_filtered ("%s\t: 0x%4lx .. 0x%4lx  ", s->name,
-			   (long) s->vma,
-			   (long) (s->vma + s->_raw_size));
-	  gdb_flush (gdb_stdout);
-
-	  for (i = 0; i < s->_raw_size; i += numbytes)
-	    {
-	      numbytes = min (srec_frame, s->_raw_size - i);
-
-	      bfd_get_section_contents (abfd, s, buffer, i, numbytes);
-
-	      reclen = mips_make_srec (srec, '3', s->vma + i, buffer, numbytes);
-	      send_srec (srec, reclen, s->vma + i);
-
-	      if (ui_load_progress_hook)
-		ui_load_progress_hook (s->name, i);
-
-	      if (hashmark)
-		{
-		  putchar_unfiltered ('#');
-		  gdb_flush (gdb_stdout);
-		}
-
-	    }			/* Per-packet (or S-record) loop */
-
-	  putchar_unfiltered ('\n');
-	}			/* Loadable sections */
-    }
-  if (hashmark)
-    putchar_unfiltered ('\n');
-
-  /* Write a type 7 terminator record. no data for a type 7, and there
-     is no data, so len is 0.  */
-
-  reclen = mips_make_srec (srec, '7', abfd->start_address, NULL, 0);
-
-  send_srec (srec, reclen, abfd->start_address);
-
-  serial_flush_input (mips_desc);
-}
-
-/*
- * mips_make_srec -- make an srecord. This writes each line, one at a
- *      time, each with it's own header and trailer line.
- *      An srecord looks like this:
- *
- * byte count-+     address
- * start ---+ |        |       data        +- checksum
- *          | |        |                   |
- *        S01000006F6B692D746573742E73726563E4
- *        S315000448600000000000000000FC00005900000000E9
- *        S31A0004000023C1400037DE00F023604000377B009020825000348D
- *        S30B0004485A0000000000004E
- *        S70500040000F6
- *
- *      S<type><length><address><data><checksum>
- *
- *      Where
- *      - length
- *        is the number of bytes following upto the checksum. Note that
- *        this is not the number of chars following, since it takes two
- *        chars to represent a byte.
- *      - type
- *        is one of:
- *        0) header record
- *        1) two byte address data record
- *        2) three byte address data record
- *        3) four byte address data record
- *        7) four byte address termination record
- *        8) three byte address termination record
- *        9) two byte address termination record
- *       
- *      - address
- *        is the start address of the data following, or in the case of
- *        a termination record, the start address of the image
- *      - data
- *        is the data.
- *      - checksum
- *        is the sum of all the raw byte data in the record, from the length
- *        upwards, modulo 256 and subtracted from 255.
- *
- * This routine returns the length of the S-record.
- *
- */
-
-static int
-mips_make_srec (char *buf, int type, CORE_ADDR memaddr, unsigned char *myaddr,
-		int len)
-{
-  unsigned char checksum;
-  int i;
-
-  /* Create the header for the srec. addr_size is the number of bytes in the address,
-     and 1 is the number of bytes in the count.  */
-
-  /* FIXME!! bigger buf required for 64-bit! */
-  buf[0] = 'S';
-  buf[1] = type;
-  buf[2] = len + 4 + 1;		/* len + 4 byte address + 1 byte checksum */
-  /* This assumes S3 style downloads (4byte addresses). There should
-     probably be a check, or the code changed to make it more
-     explicit. */
-  buf[3] = memaddr >> 24;
-  buf[4] = memaddr >> 16;
-  buf[5] = memaddr >> 8;
-  buf[6] = memaddr;
-  memcpy (&buf[7], myaddr, len);
-
-  /* Note that the checksum is calculated on the raw data, not the
-     hexified data.  It includes the length, address and the data
-     portions of the packet.  */
-  checksum = 0;
-  buf += 2;			/* Point at length byte */
-  for (i = 0; i < len + 4 + 1; i++)
-    checksum += *buf++;
-
-  *buf = ~checksum;
-
-  return len + 8;
-}
-
-/* The following manifest controls whether we enable the simple flow
-   control support provided by the monitor. If enabled the code will
-   wait for an affirmative ACK between transmitting packets. */
-#define DOETXACK (1)
-
-/* The PMON fast-download uses an encoded packet format constructed of
-   3byte data packets (encoded as 4 printable ASCII characters), and
-   escape sequences (preceded by a '/'):
-
-   'K'     clear checksum
-   'C'     compare checksum (12bit value, not included in checksum calculation)
-   'S'     define symbol name (for addr) terminated with "," and padded to 4char boundary
-   'Z'     zero fill multiple of 3bytes
-   'B'     byte (12bit encoded value, of 8bit data)
-   'A'     address (36bit encoded value)
-   'E'     define entry as original address, and exit load
-
-   The packets are processed in 4 character chunks, so the escape
-   sequences that do not have any data (or variable length data)
-   should be padded to a 4 character boundary.  The decoder will give
-   an error if the complete message block size is not a multiple of
-   4bytes (size of record).
-
-   The encoding of numbers is done in 6bit fields.  The 6bit value is
-   used to index into this string to get the specific character
-   encoding for the value: */
-static char encoding[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789,.";
-
-/* Convert the number of bits required into an encoded number, 6bits
-   at a time (range 0..63).  Keep a checksum if required (passed
-   pointer non-NULL). The function returns the number of encoded
-   characters written into the buffer. */
-static int
-pmon_makeb64 (unsigned long v, char *p, int n, int *chksum)
-{
-  int count = (n / 6);
-
-  if ((n % 12) != 0)
-    {
-      fprintf_unfiltered (gdb_stderr,
-			  "Fast encoding bitcount must be a multiple of 12bits: %dbit%s\n", n, (n == 1) ? "" : "s");
-      return (0);
-    }
-  if (n > 36)
-    {
-      fprintf_unfiltered (gdb_stderr,
-			  "Fast encoding cannot process more than 36bits at the moment: %dbits\n", n);
-      return (0);
-    }
-
-  /* Deal with the checksum: */
-  if (chksum != NULL)
-    {
-      switch (n)
-	{
-	case 36:
-	  *chksum += ((v >> 24) & 0xFFF);
-	case 24:
-	  *chksum += ((v >> 12) & 0xFFF);
-	case 12:
-	  *chksum += ((v >> 0) & 0xFFF);
-	}
-    }
-
-  do
-    {
-      n -= 6;
-      *p++ = encoding[(v >> n) & 0x3F];
-    }
-  while (n > 0);
-
-  return (count);
-}
-
-/* Shorthand function (that could be in-lined) to output the zero-fill
-   escape sequence into the data stream. */
-static int
-pmon_zeroset (int recsize, char **buff, int *amount, unsigned int *chksum)
-{
-  int count;
-
-  sprintf (*buff, "/Z");
-  count = pmon_makeb64 (*amount, (*buff + 2), 12, chksum);
-  *buff += (count + 2);
-  *amount = 0;
-  return (recsize + count + 2);
-}
-
-static int
-pmon_checkset (int recsize, char **buff, int *value)
-{
-  int count;
-
-  /* Add the checksum (without updating the value): */
-  sprintf (*buff, "/C");
-  count = pmon_makeb64 (*value, (*buff + 2), 12, NULL);
-  *buff += (count + 2);
-  sprintf (*buff, "\n");
-  *buff += 2;			/* include zero terminator */
-  /* Forcing a checksum validation clears the sum: */
-  *value = 0;
-  return (recsize + count + 3);
-}
-
-/* Amount of padding we leave after at the end of the output buffer,
-   for the checksum and line termination characters: */
-#define CHECKSIZE (4 + 4 + 4 + 2)
-/* zero-fill, checksum, transfer end and line termination space. */
-
-/* The amount of binary data loaded from the object file in a single
-   operation: */
-#define BINCHUNK (1024)
-
-/* Maximum line of data accepted by the monitor: */
-#define MAXRECSIZE (550)
-/* NOTE: This constant depends on the monitor being used. This value
-   is for PMON 5.x on the Cogent Vr4300 board. */
-
-static void
-pmon_make_fastrec (char **outbuf, unsigned char *inbuf, int *inptr,
-		   int inamount, int *recsize, unsigned int *csum,
-		   unsigned int *zerofill)
-{
-  int count = 0;
-  char *p = *outbuf;
-
-  /* This is a simple check to ensure that our data will fit within
-     the maximum allowable record size. Each record output is 4bytes
-     in length. We must allow space for a pending zero fill command,
-     the record, and a checksum record. */
-  while ((*recsize < (MAXRECSIZE - CHECKSIZE)) && ((inamount - *inptr) > 0))
-    {
-      /* Process the binary data: */
-      if ((inamount - *inptr) < 3)
-	{
-	  if (*zerofill != 0)
-	    *recsize = pmon_zeroset (*recsize, &p, zerofill, csum);
-	  sprintf (p, "/B");
-	  count = pmon_makeb64 (inbuf[*inptr], &p[2], 12, csum);
-	  p += (2 + count);
-	  *recsize += (2 + count);
-	  (*inptr)++;
-	}
-      else
-	{
-	  unsigned int value = ((inbuf[*inptr + 0] << 16) | (inbuf[*inptr + 1] << 8) | inbuf[*inptr + 2]);
-	  /* Simple check for zero data. TODO: A better check would be
-	     to check the last, and then the middle byte for being zero
-	     (if the first byte is not). We could then check for
-	     following runs of zeros, and if above a certain size it is
-	     worth the 4 or 8 character hit of the byte insertions used
-	     to pad to the start of the zeroes. NOTE: This also depends
-	     on the alignment at the end of the zero run. */
-	  if (value == 0x00000000)
-	    {
-	      (*zerofill)++;
-	      if (*zerofill == 0xFFF)	/* 12bit counter */
-		*recsize = pmon_zeroset (*recsize, &p, zerofill, csum);
-	    }
-	  else
-	    {
-	      if (*zerofill != 0)
-		*recsize = pmon_zeroset (*recsize, &p, zerofill, csum);
-	      count = pmon_makeb64 (value, p, 24, csum);
-	      p += count;
-	      *recsize += count;
-	    }
-	  *inptr += 3;
-	}
-    }
-
-  *outbuf = p;
-  return;
-}
-
-static int
-pmon_check_ack (char *mesg)
-{
-#if defined(DOETXACK)
-  int c;
-
-  if (!tftp_in_use)
-    {
-      c = serial_readchar (udp_in_use ? udp_desc : mips_desc,
-			   remote_timeout);
-      if ((c == SERIAL_TIMEOUT) || (c != 0x06))
-	{
-	  fprintf_unfiltered (gdb_stderr,
-			      "Failed to receive valid ACK for %s\n", mesg);
-	  return (-1);		/* terminate the download */
-	}
-    }
-#endif /* DOETXACK */
-  return (0);
-}
-
-/* pmon_download - Send a sequence of characters to the PMON download port,
-   which is either a serial port or a UDP socket.  */
-
-static void
-pmon_start_download (void)
-{
-  if (tftp_in_use)
-    {
-      /* Create the temporary download file.  */
-      if ((tftp_file = fopen (tftp_localname, "w")) == NULL)
-	perror_with_name (tftp_localname);
-    }
-  else
-    {
-      mips_send_command (udp_in_use ? LOAD_CMD_UDP : LOAD_CMD, 0);
-      mips_expect ("Downloading from ");
-      mips_expect (udp_in_use ? "udp" : "tty0");
-      mips_expect (", ^C to abort\r\n");
-    }
-}
-
-static int
-mips_expect_download (char *string)
-{
-  if (!mips_expect (string))
-    {
-      fprintf_unfiltered (gdb_stderr, "Load did not complete successfully.\n");
-      if (tftp_in_use)
-	remove (tftp_localname);	/* Remove temporary file */
-      return 0;
-    }
-  else
-    return 1;
-}
-
-static void
-pmon_check_entry_address (char *entry_address, int final)
-{
-  char hexnumber[9];		/* includes '\0' space */
-  mips_expect_timeout (entry_address, tftp_in_use ? 15 : remote_timeout);
-  sprintf (hexnumber, "%x", final);
-  mips_expect (hexnumber);
-  mips_expect ("\r\n");
-}
-
-static int
-pmon_check_total (int bintotal)
-{
-  char hexnumber[9];		/* includes '\0' space */
-  mips_expect ("\r\ntotal = 0x");
-  sprintf (hexnumber, "%x", bintotal);
-  mips_expect (hexnumber);
-  return mips_expect_download (" bytes\r\n");
-}
-
-static void
-pmon_end_download (int final, int bintotal)
-{
-  char hexnumber[9];		/* includes '\0' space */
-
-  if (tftp_in_use)
-    {
-      static char *load_cmd_prefix = "load -b -s ";
-      char *cmd;
-      struct stat stbuf;
-
-      /* Close off the temporary file containing the load data.  */
-      fclose (tftp_file);
-      tftp_file = NULL;
-
-      /* Make the temporary file readable by the world.  */
-      if (stat (tftp_localname, &stbuf) == 0)
-	chmod (tftp_localname, stbuf.st_mode | S_IROTH);
-
-      /* Must reinitialize the board to prevent PMON from crashing.  */
-      mips_send_command ("initEther\r", -1);
-
-      /* Send the load command.  */
-      cmd = xmalloc (strlen (load_cmd_prefix) + strlen (tftp_name) + 2);
-      strcpy (cmd, load_cmd_prefix);
-      strcat (cmd, tftp_name);
-      strcat (cmd, "\r");
-      mips_send_command (cmd, 0);
-      xfree (cmd);
-      if (!mips_expect_download ("Downloading from "))
-	return;
-      if (!mips_expect_download (tftp_name))
-	return;
-      if (!mips_expect_download (", ^C to abort\r\n"))
-	return;
-    }
-
-  /* Wait for the stuff that PMON prints after the load has completed.
-     The timeout value for use in the tftp case (15 seconds) was picked
-     arbitrarily but might be too small for really large downloads. FIXME. */
-  switch (mips_monitor)
-    {
-    case MON_LSI:
-      pmon_check_ack ("termination");
-      pmon_check_entry_address ("Entry address is ", final);
-      if (!pmon_check_total (bintotal))
-	return;
-      break;
-    default:
-      pmon_check_entry_address ("Entry Address  = ", final);
-      pmon_check_ack ("termination");
-      if (!pmon_check_total (bintotal))
-	return;
-      break;
-    }
-
-  if (tftp_in_use)
-    remove (tftp_localname);	/* Remove temporary file */
-}
-
-static void
-pmon_download (char *buffer, int length)
-{
-  if (tftp_in_use)
-    fwrite (buffer, 1, length, tftp_file);
-  else
-    serial_write (udp_in_use ? udp_desc : mips_desc, buffer, length);
-}
-
-static void
-pmon_load_fast (char *file)
-{
-  bfd *abfd;
-  asection *s;
-  unsigned char *binbuf;
-  char *buffer;
-  int reclen;
-  unsigned int csum = 0;
-  int hashmark = !tftp_in_use;
-  int bintotal = 0;
-  int final = 0;
-  int finished = 0;
-
-  buffer = (char *) xmalloc (MAXRECSIZE + 1);
-  binbuf = (unsigned char *) xmalloc (BINCHUNK);
-
-  abfd = bfd_openr (file, 0);
-  if (!abfd)
-    {
-      printf_filtered ("Unable to open file %s\n", file);
-      return;
-    }
-
-  if (bfd_check_format (abfd, bfd_object) == 0)
-    {
-      printf_filtered ("File is not an object file\n");
-      return;
-    }
-
-  /* Setup the required download state: */
-  mips_send_command ("set dlproto etxack\r", -1);
-  mips_send_command ("set dlecho off\r", -1);
-  /* NOTE: We get a "cannot set variable" message if the variable is
-     already defined to have the argument we give. The code doesn't
-     care, since it just scans to the next prompt anyway. */
-  /* Start the download: */
-  pmon_start_download ();
-
-  /* Zero the checksum */
-  sprintf (buffer, "/Kxx\n");
-  reclen = strlen (buffer);
-  pmon_download (buffer, reclen);
-  finished = pmon_check_ack ("/Kxx");
-
-  for (s = abfd->sections; s && !finished; s = s->next)
-    if (s->flags & SEC_LOAD)	/* only deal with loadable sections */
-      {
-	bintotal += s->_raw_size;
-	final = (s->vma + s->_raw_size);
-
-	printf_filtered ("%s\t: 0x%4x .. 0x%4x  ", s->name, (unsigned int) s->vma,
-			 (unsigned int) (s->vma + s->_raw_size));
-	gdb_flush (gdb_stdout);
-
-	/* Output the starting address */
-	sprintf (buffer, "/A");
-	reclen = pmon_makeb64 (s->vma, &buffer[2], 36, &csum);
-	buffer[2 + reclen] = '\n';
-	buffer[3 + reclen] = '\0';
-	reclen += 3;		/* for the initial escape code and carriage return */
-	pmon_download (buffer, reclen);
-	finished = pmon_check_ack ("/A");
-
-	if (!finished)
-	  {
-	    unsigned int binamount;
-	    unsigned int zerofill = 0;
-	    char *bp = buffer;
-	    unsigned int i;
-
-	    reclen = 0;
-
-	    for (i = 0; ((i < s->_raw_size) && !finished); i += binamount)
-	      {
-		int binptr = 0;
-
-		binamount = min (BINCHUNK, s->_raw_size - i);
-
-		bfd_get_section_contents (abfd, s, binbuf, i, binamount);
-
-		/* This keeps a rolling checksum, until we decide to output
-		   the line: */
-		for (; ((binamount - binptr) > 0);)
-		  {
-		    pmon_make_fastrec (&bp, binbuf, &binptr, binamount, &reclen, &csum, &zerofill);
-		    if (reclen >= (MAXRECSIZE - CHECKSIZE))
-		      {
-			reclen = pmon_checkset (reclen, &bp, &csum);
-			pmon_download (buffer, reclen);
-			finished = pmon_check_ack ("data record");
-			if (finished)
-			  {
-			    zerofill = 0;	/* do not transmit pending zerofills */
-			    break;
-			  }
-
-			if (ui_load_progress_hook)
-			  ui_load_progress_hook (s->name, i);
-
-			if (hashmark)
-			  {
-			    putchar_unfiltered ('#');
-			    gdb_flush (gdb_stdout);
-			  }
-
-			bp = buffer;
-			reclen = 0;	/* buffer processed */
-		      }
-		  }
-	      }
-
-	    /* Ensure no out-standing zerofill requests: */
-	    if (zerofill != 0)
-	      reclen = pmon_zeroset (reclen, &bp, &zerofill, &csum);
-
-	    /* and then flush the line: */
-	    if (reclen > 0)
-	      {
-		reclen = pmon_checkset (reclen, &bp, &csum);
-		/* Currently pmon_checkset outputs the line terminator by
-		   default, so we write out the buffer so far: */
-		pmon_download (buffer, reclen);
-		finished = pmon_check_ack ("record remnant");
-	      }
-	  }
-
-	putchar_unfiltered ('\n');
-      }
-
-  /* Terminate the transfer. We know that we have an empty output
-     buffer at this point. */
-  sprintf (buffer, "/E/E\n");	/* include dummy padding characters */
-  reclen = strlen (buffer);
-  pmon_download (buffer, reclen);
-
-  if (finished)
-    {				/* Ignore the termination message: */
-      serial_flush_input (udp_in_use ? udp_desc : mips_desc);
-    }
-  else
-    {				/* Deal with termination message: */
-      pmon_end_download (final, bintotal);
-    }
-
-  return;
-}
-
-/* mips_load -- download a file. */
-
-static void
-mips_load (char *file, int from_tty)
-{
-  /* Get the board out of remote debugging mode.  */
-  if (mips_exit_debug ())
-    error ("mips_load:  Couldn't get into monitor mode.");
-
-  if (mips_monitor != MON_IDT)
-    pmon_load_fast (file);
-  else
-    mips_load_srec (file);
-
-  mips_initialize ();
-
-  /* Finally, make the PC point at the start address */
-  if (mips_monitor != MON_IDT)
-    {
-      /* Work around problem where PMON monitor updates the PC after a load
-         to a different value than GDB thinks it has. The following ensures
-         that the write_pc() WILL update the PC value: */
-      register_valid[PC_REGNUM] = 0;
-    }
-  if (exec_bfd)
-    write_pc (bfd_get_start_address (exec_bfd));
-
-  inferior_ptid = null_ptid;	/* No process now */
-
-/* This is necessary because many things were based on the PC at the time that
-   we attached to the monitor, which is no longer valid now that we have loaded
-   new code (and just changed the PC).  Another way to do this might be to call
-   normal_stop, except that the stack may not be valid, and things would get
-   horribly confused... */
-
-  clear_symtab_users ();
-}
-
-
-/* Pass the command argument as a packet to PMON verbatim.  */
-
-static void
-pmon_command (char *args, int from_tty)
-{
-  char buf[DATA_MAXLEN + 1];
-  int rlen;
-
-  sprintf (buf, "0x0 %s", args);
-  mips_send_packet (buf, 1);
-  printf_filtered ("Send packet: %s\n", buf);
-
-  rlen = mips_receive_packet (buf, 1, mips_receive_wait);
-  buf[rlen] = '\0';
-  printf_filtered ("Received packet: %s\n", buf);
-}
-
-void
-_initialize_remote_mips (void)
-{
-  /* Initialize the fields in mips_ops that are common to all four targets.  */
-  mips_ops.to_longname = "Remote MIPS debugging over serial line";
-  mips_ops.to_close = mips_close;
-  mips_ops.to_detach = mips_detach;
-  mips_ops.to_resume = mips_resume;
-  mips_ops.to_fetch_registers = mips_fetch_registers;
-  mips_ops.to_store_registers = mips_store_registers;
-  mips_ops.to_prepare_to_store = mips_prepare_to_store;
-  mips_ops.to_xfer_memory = mips_xfer_memory;
-  mips_ops.to_files_info = mips_files_info;
-  mips_ops.to_insert_breakpoint = mips_insert_breakpoint;
-  mips_ops.to_remove_breakpoint = mips_remove_breakpoint;
-  mips_ops.to_kill = mips_kill;
-  mips_ops.to_load = mips_load;
-  mips_ops.to_create_inferior = mips_create_inferior;
-  mips_ops.to_mourn_inferior = mips_mourn_inferior;
-  mips_ops.to_stratum = process_stratum;
-  mips_ops.to_has_all_memory = 1;
-  mips_ops.to_has_memory = 1;
-  mips_ops.to_has_stack = 1;
-  mips_ops.to_has_registers = 1;
-  mips_ops.to_has_execution = 1;
-  mips_ops.to_magic = OPS_MAGIC;
-
-  /* Copy the common fields to all four target vectors.  */
-  pmon_ops = ddb_ops = lsi_ops = mips_ops;
-
-  /* Initialize target-specific fields in the target vectors.  */
-  mips_ops.to_shortname = "mips";
-  mips_ops.to_doc = "\
-Debug a board using the MIPS remote debugging protocol over a serial line.\n\
-The argument is the device it is connected to or, if it contains a colon,\n\
-HOST:PORT to access a board over a network";
-  mips_ops.to_open = mips_open;
-  mips_ops.to_wait = mips_wait;
-
-  pmon_ops.to_shortname = "pmon";
-  pmon_ops.to_doc = "\
-Debug a board using the PMON MIPS remote debugging protocol over a serial\n\
-line. The argument is the device it is connected to or, if it contains a\n\
-colon, HOST:PORT to access a board over a network";
-  pmon_ops.to_open = pmon_open;
-  pmon_ops.to_wait = mips_wait;
-
-  ddb_ops.to_shortname = "ddb";
-  ddb_ops.to_doc = "\
-Debug a board using the PMON MIPS remote debugging protocol over a serial\n\
-line. The first argument is the device it is connected to or, if it contains\n\
-a colon, HOST:PORT to access a board over a network.  The optional second\n\
-parameter is the temporary file in the form HOST:FILENAME to be used for\n\
-TFTP downloads to the board.  The optional third parameter is the local name\n\
-of the TFTP temporary file, if it differs from the filename seen by the board.";
-  ddb_ops.to_open = ddb_open;
-  ddb_ops.to_wait = mips_wait;
-
-  lsi_ops.to_shortname = "lsi";
-  lsi_ops.to_doc = pmon_ops.to_doc;
-  lsi_ops.to_open = lsi_open;
-  lsi_ops.to_wait = mips_wait;
-
-  /* Add the targets.  */
-  add_target (&mips_ops);
-  add_target (&pmon_ops);
-  add_target (&ddb_ops);
-  add_target (&lsi_ops);
-
-  add_show_from_set (
-		      add_set_cmd ("timeout", no_class, var_zinteger,
-				   (char *) &mips_receive_wait,
-		       "Set timeout in seconds for remote MIPS serial I/O.",
-				   &setlist),
-		      &showlist);
-
-  add_show_from_set (
-		  add_set_cmd ("retransmit-timeout", no_class, var_zinteger,
-			       (char *) &mips_retransmit_wait,
-			       "Set retransmit timeout in seconds for remote MIPS serial I/O.\n\
-This is the number of seconds to wait for an acknowledgement to a packet\n\
-before resending the packet.", &setlist),
-		      &showlist);
-
-  add_show_from_set (
-		   add_set_cmd ("syn-garbage-limit", no_class, var_zinteger,
-				(char *) &mips_syn_garbage,
-				"Set the maximum number of characters to ignore when scanning for a SYN.\n\
-This is the maximum number of characters GDB will ignore when trying to\n\
-synchronize with the remote system.  A value of -1 means that there is no limit\n\
-(Note that these characters are printed out even though they are ignored.)",
-				&setlist),
-		      &showlist);
-
-  add_show_from_set
-    (add_set_cmd ("monitor-prompt", class_obscure, var_string,
-		  (char *) &mips_monitor_prompt,
-		  "Set the prompt that GDB expects from the monitor.",
-		  &setlist),
-     &showlist);
-
-  add_show_from_set (
-	       add_set_cmd ("monitor-warnings", class_obscure, var_zinteger,
-			    (char *) &monitor_warnings,
-			    "Set printing of monitor warnings.\n"
-		"When enabled, monitor warnings about hardware breakpoints "
-			    "will be displayed.",
-			    &setlist),
-		      &showlist);
-
-  add_com ("pmon <command>", class_obscure, pmon_command,
-	   "Send a packet to PMON (must be in debug mode).");
-
-  add_show_from_set (add_set_cmd ("mask-address", no_class,
-				  var_boolean, &mask_address_p,
-				  "Set zeroing of upper 32 bits of 64-bit addresses when talking to PMON targets.\n\
-Use \"on\" to enable the masking and \"off\" to disable it.\n",
-				  &setlist),
-		     &showlist);
-}
author	nobody <>	2002-09-07 00:00:05 +0000
committer	nobody <>	2002-09-07 00:00:05 +0000
commit	c1aa2a27e755c883b5c49b223120dfb712ea4e28 (patch)
tree	a98633075cd1f2b034b49446e83e522708d11f68 /gdb/remote-mips.c
parent	2e3c0e2427295c9cc09a8a707dfba38d50e2ba30 (diff)
download	gdb-sid-20020905-branch.zip gdb-sid-20020905-branch.tar.gz gdb-sid-20020905-branch.tar.bz2