* gdbserver/{remote-gutils.c remote-server.c Makefile.in
configure.in remote-inflow.c remote-utils.c}: New files to support GDB remote server. Currently only works for Lynx.
This commit is contained in:
Stu Grossman
parent
185a1705bb
commit
e20520b8f9
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@ -0,0 +1,331 @@
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srcname="Remote GDB server"
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srctrigger=remote-server.c
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gdb_serial_driver=../ser-unix.c
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# per-host:
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# per-target:
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# Hack alert! We want this directory to be configured only for the target,
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# which is where it will be running, so we just eliminate the per-host section,
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# and make the per-target stuff setup host & host_cpu according to the target.
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host_cpu=$target_cpu
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host=$target
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# Map host cpu into the config cpu subdirectory name.
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# The default is $host_cpu.
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case "${host_cpu}" in
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c[12]) gdb_host_cpu=convex ;;
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hppa*) gdb_host_cpu=pa ;;
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i[34]86) gdb_host_cpu=i386 ;;
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m68*) gdb_host_cpu=m68k ;;
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np1) gdb_host_cpu=gould ;;
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pyramid) gdb_host_cpu=pyr ;;
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*) gdb_host_cpu=$target_cpu ;;
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esac
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# map host info into gdb names.
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case "${host}" in
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a29k-*-*) gdb_host=ultra3 ;;
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arm-*-*) gdb_host=arm ;;
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c[12]-*-*) gdb_host=convex ;;
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hppa*-hp-bsd*) gdb_host=hppabsd ;;
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hppa*-hp-hpux*) gdb_host=hppahpux ;;
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i[34]86-ncr-*) gdb_host=ncr3000 ;;
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i[34]86-sequent-*) gdb_host=symmetry ;;
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i[34]86-*-bsd*) gdb_host=i386bsd ;;
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i[34]86-*-lynx*) gdb_host=i386lynx ;;
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i[34]86-*-go32) gdb_host=go32
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gdb_serial_driver=ser-go32.c
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;;
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i[34]86-*-linux) gdb_host=linux ;;
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i[34]86-*-mach) gdb_host=i386mach ;;
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i[34]86-*-sco3.2v4*) gdb_host=i386sco4 ;;
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i[34]86-*-sco*) gdb_host=i386sco ;;
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i[34]86-*-solaris*) gdb_host=i386sol2 ;;
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i[34]86-*-sunos*) gdb_host=sun386 ;;
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i[34]86-*-sysv3.2) gdb_host=i386v32 ;;
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i[34]86-*-sysv4*) gdb_host=i386v4 ;;
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i[34]86-*-sysv*) gdb_host=i386v ;;
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m680[01]0-sun-sunos3*) gdb_host=sun2os3 ;;
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m680[01]0-sun-sunos4*) gdb_host=sun2os4 ;;
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m68030-sony-*) gdb_host=news1000 ;;
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m68*-altos-*) gdb_host=altos ;;
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m68*-apollo*-sysv*) gdb_host=apollo68v ;;
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m68*-apollo*-bsd*) gdb_host=apollo68b ;;
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m68*-att-*) gdb_host=3b1 ;;
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m68*-cbm-sysv4*) gdb_host=amix ;;
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m68*-hp-bsd*) gdb_host=hp300bsd ;;
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m68*-hp-hpux*) gdb_host=hp300hpux ;;
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m68*-isi-*) gdb_host=isi ;;
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m68*-sony-*) gdb_host=news ;;
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m68*-sun-sunos3*) gdb_host=sun3os3 ;;
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m68*-sun-sunos4*) gdb_host=sun3os4 ;;
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m68*-sun-*) gdb_host=sun3os4 ;;
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m88k-motorola-*) gdb_host=delta88 ;;
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m88k-*-*) gdb_host=m88k ;;
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mips-dec-*) gdb_host=decstation ;;
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mips-little-*) gdb_host=littlemips ;;
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mips-sgi-irix3) gdb_host=irix3 ;;
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mips-sgi-irix4*) gdb_host=irix4 ;;
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mips-sony-*) gdb_host=bigmips ;;
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none-*-*) gdb_host=none ;;
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np1-*-*) gdb_host=np1 ;;
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ns32k-umax-*) gdb_host=umax ;;
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ns32k-utek-sysv) gdb_host=merlin ;;
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pn-*-*) gdb_host=pn ;;
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pyramid-*-*) gdb_host=pyramid ;;
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romp-*-*) gdb_host=rtbsd ;;
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rs6000-*-*) gdb_host=rs6000 ;;
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sparc-*-solaris2*) gdb_host=sun4sol2 ;;
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sparc-*-sunos4*) gdb_host=sun4os4 ;;
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sparc-*-*) gdb_host=sun4os4 ;;
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tahoe-*-*) gdb_host=tahoe ;;
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vax-*-bsd*) gdb_host=vaxbsd ;;
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vax-*-ultrix2*) gdb_host=vaxult2 ;;
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vax-*-ultrix*) gdb_host=vaxult ;;
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esac
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if [ ! -f ${srcdir}/../config/${gdb_host_cpu}/${gdb_host}.mh ]; then
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echo '***' "GDB remote does not support host ${host}" 1>&2
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exit 1
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fi
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# We really shouldn't depend on there being a space after XM_FILE= ...
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hostfile=`awk '$1 == "XM_FILE=" { print $2 }' <${srcdir}/../config/${gdb_host_cpu}/${gdb_host}.mh`
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# per-target:
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# Map target cpu into the config cpu subdirectory name.
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# The default is $target_cpu.
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case "${target_cpu}" in
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c[12]) gdb_target_cpu=convex ;;
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hppa*) gdb_target_cpu=pa ;;
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i[34]86) gdb_target_cpu=i386 ;;
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m68*) gdb_target_cpu=m68k ;;
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np1) gdb_target_cpu=gould ;;
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pn) gdb_target_cpu=gould ;;
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pyramid) gdb_target_cpu=pyr ;;
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sparc*) gdb_target_cpu=sparc ;;
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*) gdb_target_cpu=$target_cpu ;;
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esac
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# map target info into gdb names.
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case "${target}" in
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a29k-*-aout) gdb_target=a29k ;;
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a29k-*-coff) gdb_target=a29k ;;
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a29k-*-elf) gdb_target=a29k ;;
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a29k-*-ebmon) gdb_target=a29k ;;
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a29k-*-kern) gdb_target=a29k-kern ;;
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a29k-*-none) gdb_target=a29k ;;
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a29k-*-sym1) gdb_target=ultra3 ;;
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a29k-*-udi) gdb_target=a29k-udi ;;
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arm-*-*) gdb_target=arm ;;
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c1-*-*) gdb_target=convex ;;
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c2-*-*) gdb_target=convex ;;
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h8300-*-*) gdb_target=h8300hms ;;
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h8500-*-*) gdb_target=h8500hms ;;
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sh-*-*) gdb_target=sh ;;
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hppa*-*-bsd*) gdb_target=hppabsd ;;
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hppa*-*-hpux*) gdb_target=hppahpux ;;
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i[34]86-sequent-*) gdb_target=symmetry ;;
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i[34]86-ncr-*) gdb_target=ncr3000 ;;
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i[34]86-*-aout) gdb_target=i386aout ;;
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i[34]86-*-coff) gdb_target=i386v ;;
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i[34]86-*-elf) gdb_target=i386v ;;
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i[34]86-*-bsd*) gdb_target=i386bsd ;;
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i[34]86-*-lynx*) gdb_target=i386lynx ;;
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i[34]86-*-go32) gdb_target=i386aout ;;
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i[34]86-*-solaris*) gdb_target=i386sol2 ;;
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i[34]86-*-sunos*) gdb_target=sun386 ;;
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i[34]86-*-sysv4*) gdb_target=i386v4 ;;
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i[34]86-*-sco*) gdb_target=i386v ;;
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i[34]86-*-sysv*) gdb_target=i386v ;;
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i[34]86-*-linux) gdb_target=linux ;;
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i960-*-bout) gdb_target=vxworks960 ;;
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i960-*-coff) gdb_target=nindy960 ;;
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i960-*-elf) gdb_target=nindy960 ;;
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i960-*-nindy) gdb_target=nindy960 ;;
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i960-*-vxworks) gdb_target=vxworks960 ;;
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m68000-*-aout) gdb_target=m68k-nofp ;;
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m68000-*-coff) gdb_target=m68k-nofp ;;
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m68000-*-elf) gdb_target=m68k-nofp ;;
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m68000-*-sunos3*) gdb_target=sun2os3 ;;
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m68000-*-sunos4*) gdb_target=sun2os4 ;;
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m68*-cbm-sysv4*) gdb_target=amix ;;
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m68*-hp-bsd*) gdb_target=hp300bsd ;;
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m68*-hp-hpux*) gdb_target=hp300hpux ;;
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m68*-altos-*) gdb_target=altos ;;
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m68*-att-*) gdb_target=3b1 ;;
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m68*-ericsson-*) gdb_target=es1800 ;;
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m68*-isi-*) gdb_target=isi ;;
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m68*-netx-*) gdb_target=vxworks68 ;;
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m68*-sony-*) gdb_target=news ;;
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m68*-tandem-*) gdb_target=st2000 ;;
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m68*-*-aout) gdb_target=m68k-fp ;;
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m68*-*-coff) gdb_target=m68k-fp ;;
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m68*-*-elf) gdb_target=m68k-fp ;;
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m68*-*-os68k) gdb_target=os68k ;;
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m68*-*-sunos3*) gdb_target=sun3os3 ;;
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m68*-*-sunos4*) gdb_target=sun3os4 ;;
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m68*-*-vxworks*) gdb_target=vxworks68 ;;
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m88k-motorola-*) gdb_target=delta88 ;;
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m88k-*-*) gdb_target=m88k ;;
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mips-big-*) gdb_target=bigmips ;;
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mips-dec-*) gdb_target=decstation ;;
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mips-idt-ecoff) gdb_target=idt ;;
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mips-little-*) gdb_target=littlemips ;;
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mips-sgi-*) gdb_target=irix3 ;;
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mips-sony-*) gdb_target=bigmips ;;
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none-*-*) gdb_target=none ;;
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np1-*-*) gdb_target=np1 ;;
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ns32k-utek-sysv) gdb_target=merlin ;;
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ns32k-utek-*) gdb_target=umax ;;
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pn-*-*) gdb_target=pn ;;
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pyramid-*-*) gdb_target=pyramid ;;
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rs6000-*-*) gdb_target=rs6000 ;;
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sparc-*-aout) gdb_target=sparc-em ;;
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sparc-*-coff) gdb_target=sparc-em ;;
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sparc-*-elf) gdb_target=sparc-em ;;
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sparc-*-solaris2*) gdb_target=sun4sol2 ;;
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sparc-*-sunos4*) gdb_target=sun4os4 ;;
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sparc-*-vxworks*) gdb_target=sparc-em ;;
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sparc-*-*) gdb_target=sun4os4 ;;
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sparclite*-*-*) gdb_target=sparclite ;;
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tahoe-*-*) gdb_target=tahoe ;;
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vax-*-*) gdb_target=vax ;;
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z8k-*-sim) gdb_target=z8ksim ;;
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esac
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if [ ! -f ${srcdir}/../config/${gdb_target_cpu}/${gdb_target}.mt ]; then
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echo '***' "GDB remote does not support target ${target}" 1>&2
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exit 1
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fi
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if [ -z "${removing}" ] ; then
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cat ${srcdir}/../config/${gdb_host_cpu}/${gdb_host}.mh ${srcdir}/../config/${gdb_target_cpu}/${gdb_target}.mt | awk '$1 == "#msg" {
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print substr($0,6)}'
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fi
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# We really shouldn't depend on there being a space after TM_FILE= ...
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targetfile=`awk '$1 == "TM_FILE=" { print $2 }' <${srcdir}/../config/${gdb_target_cpu}/${gdb_target}.mt`
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if [ "${target}" = "${host}" ] ; then
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nativefile=`awk '$1 == "NAT_FILE=" { print $2 }' <${srcdir}/../config/${gdb_host_cpu}/${gdb_host}.mh`
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fi
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host_makefile_frag=../config/${gdb_host_cpu}/${gdb_host}.mh
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target_makefile_frag=../config/${gdb_target_cpu}/${gdb_target}.mt
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# If hostfile (XM_FILE) and/or targetfile (TM_FILE) and/or nativefile
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# (NAT_FILE) is not set in the ?config/* file, we don't make the
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# corresponding links. But we have to remove the xm.h files and tm.h
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# files anyway, e.g. when switching from "configure host" to
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# "configure none".
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files=
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links=
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rm -f xm.h
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rm -f ser-hardwire.c
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if [ "${hostfile}" != "" ]; then
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if [ -f ${srcdir}/../config/${hostfile} ]; then
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files="${files} ../config/${hostfile}"
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else
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files="${files} ../config/${gdb_host_cpu}/${hostfile}"
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fi
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links="${links} xm.h"
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# files="${files} ${gdb_serial_driver}"
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# links="${links} ser-hardwire.c"
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fi
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rm -f tm.h
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if [ "${targetfile}" != "" ]; then
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if [ -f ${srcdir}/../config/${targetfile} ]; then
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files="${files} ../config/${targetfile}"
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else
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files="${files} ../config/${gdb_target_cpu}/${targetfile}"
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fi
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links="${links} tm.h"
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fi
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rm -f nm.h
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if [ "${nativefile}" != "" ]; then
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if [ -f ${srcdir}/../config/${nativefile} ]; then
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files="${files} ../config/${nativefile}"
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else
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files="${files} ../config/${gdb_host_cpu}/${nativefile}"
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fi
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links="${links} nm.h"
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# temporary scaffolding until all hosts have the host/target/native
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# split in place.
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else
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files="${files} ../config/nm-trash.h"
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links="${links} nm.h"
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fi
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if [ ${target_cpu} = "sparclite" ]; then
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configdirs="${configdirs} sparclite"
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fi
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# post-target:
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if [ "${nativefile}" = "" ] ; then
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sed -e '/^NATDEPFILES= /s//# NATDEPFILES= /' \
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< Makefile > Makefile.tem
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mv -f Makefile.tem Makefile
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fi
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@ -0,0 +1,412 @@
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/* General utility routines for the remote server for GDB.
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Copyright (C) 1986, 1989, 1993 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
|
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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.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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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
|
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include "defs.h"
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#include <setjmp.h>
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void error ();
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void fatal ();
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/* Chain of cleanup actions established with make_cleanup,
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to be executed if an error happens. */
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static struct cleanup *cleanup_chain;
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/* Nonzero means a quit has been requested. */
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int quit_flag;
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/* Nonzero means quit immediately if Control-C is typed now,
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rather than waiting until QUIT is executed. */
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int immediate_quit;
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/* Add a new cleanup to the cleanup_chain,
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and return the previous chain pointer
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to be passed later to do_cleanups or discard_cleanups.
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Args are FUNCTION to clean up with, and ARG to pass to it. */
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struct cleanup *
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make_cleanup (function, arg)
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void (*function) ();
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PTR arg;
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{
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register struct cleanup *new
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= (struct cleanup *) xmalloc (sizeof (struct cleanup));
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register struct cleanup *old_chain = cleanup_chain;
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new->next = cleanup_chain;
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new->function = function;
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new->arg = arg;
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cleanup_chain = new;
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return old_chain;
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}
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/* Discard cleanups and do the actions they describe
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||||
until we get back to the point OLD_CHAIN in the cleanup_chain. */
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void
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do_cleanups (old_chain)
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register struct cleanup *old_chain;
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{
|
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register struct cleanup *ptr;
|
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while ((ptr = cleanup_chain) != old_chain)
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||||
{
|
||||
(*ptr->function) (ptr->arg);
|
||||
cleanup_chain = ptr->next;
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||||
free (ptr);
|
||||
}
|
||||
}
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||||
|
||||
/* Discard cleanups, not doing the actions they describe,
|
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until we get back to the point OLD_CHAIN in the cleanup_chain. */
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void
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discard_cleanups (old_chain)
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register struct cleanup *old_chain;
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{
|
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register struct cleanup *ptr;
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while ((ptr = cleanup_chain) != old_chain)
|
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{
|
||||
cleanup_chain = ptr->next;
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||||
free (ptr);
|
||||
}
|
||||
}
|
||||
|
||||
/* This function is useful for cleanups.
|
||||
Do
|
||||
|
||||
foo = xmalloc (...);
|
||||
old_chain = make_cleanup (free_current_contents, &foo);
|
||||
|
||||
to arrange to free the object thus allocated. */
|
||||
|
||||
void
|
||||
free_current_contents (location)
|
||||
char **location;
|
||||
{
|
||||
free (*location);
|
||||
}
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||||
|
||||
/* Generally useful subroutines used throughout the program. */
|
||||
|
||||
/* Like malloc but get error if no storage available. */
|
||||
|
||||
PTR
|
||||
xmalloc (size)
|
||||
long size;
|
||||
{
|
||||
register char *val = (char *) malloc (size);
|
||||
if (!val)
|
||||
fatal ("virtual memory exhausted.", 0);
|
||||
return val;
|
||||
}
|
||||
|
||||
/* Like realloc but get error if no storage available. */
|
||||
|
||||
PTR
|
||||
xrealloc (ptr, size)
|
||||
PTR ptr;
|
||||
long size;
|
||||
{
|
||||
register char *val = (char *) realloc (ptr, size);
|
||||
if (!val)
|
||||
fatal ("virtual memory exhausted.", 0);
|
||||
return val;
|
||||
}
|
||||
|
||||
/* Print the system error message for errno, and also mention STRING
|
||||
as the file name for which the error was encountered.
|
||||
Then return to command level. */
|
||||
|
||||
void
|
||||
perror_with_name (string)
|
||||
char *string;
|
||||
{
|
||||
extern int sys_nerr;
|
||||
extern char *sys_errlist[];
|
||||
extern int errno;
|
||||
char *err;
|
||||
char *combined;
|
||||
|
||||
if (errno < sys_nerr)
|
||||
err = sys_errlist[errno];
|
||||
else
|
||||
err = "unknown error";
|
||||
|
||||
combined = (char *) alloca (strlen (err) + strlen (string) + 3);
|
||||
strcpy (combined, string);
|
||||
strcat (combined, ": ");
|
||||
strcat (combined, err);
|
||||
|
||||
error ("%s.", combined);
|
||||
}
|
||||
|
||||
/* Print the system error message for ERRCODE, and also mention STRING
|
||||
as the file name for which the error was encountered. */
|
||||
|
||||
void
|
||||
print_sys_errmsg (string, errcode)
|
||||
char *string;
|
||||
int errcode;
|
||||
{
|
||||
extern int sys_nerr;
|
||||
extern char *sys_errlist[];
|
||||
char *err;
|
||||
char *combined;
|
||||
|
||||
if (errcode < sys_nerr)
|
||||
err = sys_errlist[errcode];
|
||||
else
|
||||
err = "unknown error";
|
||||
|
||||
combined = (char *) alloca (strlen (err) + strlen (string) + 3);
|
||||
strcpy (combined, string);
|
||||
strcat (combined, ": ");
|
||||
strcat (combined, err);
|
||||
|
||||
printf ("%s.\n", combined);
|
||||
}
|
||||
|
||||
void
|
||||
quit ()
|
||||
{
|
||||
fflush (stdout);
|
||||
ioctl (fileno (stdout), TIOCFLUSH, 0);
|
||||
error ("Quit");
|
||||
}
|
||||
|
||||
/* Control C comes here */
|
||||
|
||||
void
|
||||
request_quit (ignored)
|
||||
int ignored;
|
||||
{
|
||||
quit_flag = 1;
|
||||
if (immediate_quit)
|
||||
quit ();
|
||||
}
|
||||
|
||||
/* Print an error message and return to command level.
|
||||
STRING is the error message, used as a fprintf string,
|
||||
and ARG is passed as an argument to it. */
|
||||
|
||||
NORETURN void
|
||||
error (string, arg1, arg2, arg3)
|
||||
char *string;
|
||||
int arg1, arg2, arg3;
|
||||
{
|
||||
extern jmp_buf toplevel;
|
||||
|
||||
fflush (stdout);
|
||||
fprintf (stderr, string, arg1, arg2, arg3);
|
||||
fprintf (stderr, "\n");
|
||||
longjmp(toplevel, 1);
|
||||
}
|
||||
|
||||
/* Print an error message and exit reporting failure.
|
||||
This is for a error that we cannot continue from.
|
||||
STRING and ARG are passed to fprintf. */
|
||||
|
||||
void
|
||||
fatal (string, arg)
|
||||
char *string;
|
||||
int arg;
|
||||
{
|
||||
fprintf (stderr, "gdb: ");
|
||||
fprintf (stderr, string, arg);
|
||||
fprintf (stderr, "\n");
|
||||
exit (1);
|
||||
}
|
||||
|
||||
/* Make a copy of the string at PTR with SIZE characters
|
||||
(and add a null character at the end in the copy).
|
||||
Uses malloc to get the space. Returns the address of the copy. */
|
||||
|
||||
char *
|
||||
savestring (ptr, size)
|
||||
const char *ptr;
|
||||
int size;
|
||||
{
|
||||
register char *p = (char *) xmalloc (size + 1);
|
||||
bcopy (ptr, p, size);
|
||||
p[size] = 0;
|
||||
return p;
|
||||
}
|
||||
|
||||
void
|
||||
print_spaces (n, file)
|
||||
register int n;
|
||||
register FILE *file;
|
||||
{
|
||||
while (n-- > 0)
|
||||
fputc (' ', file);
|
||||
}
|
||||
|
||||
/* Ask user a y-or-n question and return 1 iff answer is yes.
|
||||
Takes three args which are given to printf to print the question.
|
||||
The first, a control string, should end in "? ".
|
||||
It should not say how to answer, because we do that. */
|
||||
|
||||
int
|
||||
query (ctlstr, arg1, arg2)
|
||||
char *ctlstr;
|
||||
{
|
||||
register int answer;
|
||||
|
||||
/* Automatically answer "yes" if input is not from a terminal. */
|
||||
/***********if (!input_from_terminal_p ())
|
||||
return 1; *************************/
|
||||
|
||||
while (1)
|
||||
{
|
||||
printf (ctlstr, arg1, arg2);
|
||||
printf ("(y or n) ");
|
||||
fflush (stdout);
|
||||
answer = fgetc (stdin);
|
||||
clearerr (stdin); /* in case of C-d */
|
||||
if (answer != '\n')
|
||||
while (fgetc (stdin) != '\n')
|
||||
clearerr (stdin);
|
||||
if (answer >= 'a')
|
||||
answer -= 040;
|
||||
if (answer == 'Y')
|
||||
return 1;
|
||||
if (answer == 'N')
|
||||
return 0;
|
||||
printf ("Please answer y or n.\n");
|
||||
}
|
||||
}
|
||||
|
||||
/* Parse a C escape sequence. STRING_PTR points to a variable
|
||||
containing a pointer to the string to parse. That pointer
|
||||
is updated past the characters we use. The value of the
|
||||
escape sequence is returned.
|
||||
|
||||
A negative value means the sequence \ newline was seen,
|
||||
which is supposed to be equivalent to nothing at all.
|
||||
|
||||
If \ is followed by a null character, we return a negative
|
||||
value and leave the string pointer pointing at the null character.
|
||||
|
||||
If \ is followed by 000, we return 0 and leave the string pointer
|
||||
after the zeros. A value of 0 does not mean end of string. */
|
||||
|
||||
int
|
||||
parse_escape (string_ptr)
|
||||
char **string_ptr;
|
||||
{
|
||||
register int c = *(*string_ptr)++;
|
||||
switch (c)
|
||||
{
|
||||
case 'a':
|
||||
return '\a';
|
||||
case 'b':
|
||||
return '\b';
|
||||
case 'e':
|
||||
return 033;
|
||||
case 'f':
|
||||
return '\f';
|
||||
case 'n':
|
||||
return '\n';
|
||||
case 'r':
|
||||
return '\r';
|
||||
case 't':
|
||||
return '\t';
|
||||
case 'v':
|
||||
return '\v';
|
||||
case '\n':
|
||||
return -2;
|
||||
case 0:
|
||||
(*string_ptr)--;
|
||||
return 0;
|
||||
case '^':
|
||||
c = *(*string_ptr)++;
|
||||
if (c == '\\')
|
||||
c = parse_escape (string_ptr);
|
||||
if (c == '?')
|
||||
return 0177;
|
||||
return (c & 0200) | (c & 037);
|
||||
|
||||
case '0':
|
||||
case '1':
|
||||
case '2':
|
||||
case '3':
|
||||
case '4':
|
||||
case '5':
|
||||
case '6':
|
||||
case '7':
|
||||
{
|
||||
register int i = c - '0';
|
||||
register int count = 0;
|
||||
while (++count < 3)
|
||||
{
|
||||
if ((c = *(*string_ptr)++) >= '0' && c <= '7')
|
||||
{
|
||||
i *= 8;
|
||||
i += c - '0';
|
||||
}
|
||||
else
|
||||
{
|
||||
(*string_ptr)--;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return i;
|
||||
}
|
||||
default:
|
||||
return c;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
printchar (ch, stream)
|
||||
unsigned char ch;
|
||||
FILE *stream;
|
||||
{
|
||||
register int c = ch;
|
||||
if (c < 040 || c >= 0177)
|
||||
{
|
||||
if (c == '\n')
|
||||
fprintf (stream, "\\n");
|
||||
else if (c == '\b')
|
||||
fprintf (stream, "\\b");
|
||||
else if (c == '\t')
|
||||
fprintf (stream, "\\t");
|
||||
else if (c == '\f')
|
||||
fprintf (stream, "\\f");
|
||||
else if (c == '\r')
|
||||
fprintf (stream, "\\r");
|
||||
else if (c == 033)
|
||||
fprintf (stream, "\\e");
|
||||
else if (c == '\a')
|
||||
fprintf (stream, "\\a");
|
||||
else
|
||||
fprintf (stream, "\\%03o", c);
|
||||
}
|
||||
else
|
||||
{
|
||||
if (c == '\\' || c == '"' || c == '\'')
|
||||
fputc ('\\', stream);
|
||||
fputc (c, stream);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,366 @@
|
|||
/* Low level interface to ptrace, for the remote server for GDB.
|
||||
Copyright (C) 1986, 1987, 1993 Free Software Foundation, Inc.
|
||||
|
||||
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
#include "defs.h"
|
||||
#include "frame.h"
|
||||
#include "inferior.h"
|
||||
/***************************
|
||||
#include "initialize.h"
|
||||
****************************/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <sys/param.h>
|
||||
#include <sys/dir.h>
|
||||
/*#include <sys/user.h>*/
|
||||
#define LYNXOS
|
||||
#include <sys/mem.h>
|
||||
#include <sys/signal.h>
|
||||
#include <sys/file.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/itimer.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/resource.h>
|
||||
#include <sys/proc.h>
|
||||
#include <signal.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sgtty.h>
|
||||
#include <fcntl.h>
|
||||
#include "/usr/include/wait.h"
|
||||
|
||||
/***************Begin MY defs*********************/
|
||||
int quit_flag = 0;
|
||||
char registers[REGISTER_BYTES];
|
||||
|
||||
/* Index within `registers' of the first byte of the space for
|
||||
register N. */
|
||||
|
||||
|
||||
char buf2[MAX_REGISTER_RAW_SIZE];
|
||||
/***************End MY defs*********************/
|
||||
|
||||
#include <sys/ptrace.h>
|
||||
/*#include <machine/reg.h>*/
|
||||
|
||||
extern char **environ;
|
||||
extern int errno;
|
||||
extern int inferior_pid;
|
||||
void error (), quit (), perror_with_name ();
|
||||
int query ();
|
||||
|
||||
/* Start an inferior process and returns its pid.
|
||||
ALLARGS is a vector of program-name and args.
|
||||
ENV is the environment vector to pass. */
|
||||
|
||||
int
|
||||
create_inferior (allargs, env)
|
||||
char **allargs;
|
||||
char **env;
|
||||
{
|
||||
int pid;
|
||||
extern int sys_nerr;
|
||||
extern char *sys_errlist[];
|
||||
extern int errno;
|
||||
char status;
|
||||
char execbuf[1024];
|
||||
|
||||
/* exec is said to fail if the executable is open. */
|
||||
/****************close_exec_file ();*****************/
|
||||
|
||||
sprintf (execbuf, "exec %s", allargs);
|
||||
|
||||
pid = fork ();
|
||||
if (pid < 0)
|
||||
perror_with_name ("fork");
|
||||
|
||||
if (pid == 0)
|
||||
{
|
||||
/* Run inferior in a separate process group. */
|
||||
setpgrp (getpid (), getpid ());
|
||||
|
||||
errno = 0;
|
||||
ptrace (PTRACE_TRACEME);
|
||||
|
||||
execle ("/bin/sh", "sh", "-c", execbuf, 0, env);
|
||||
|
||||
fprintf (stderr, "Cannot exec /bin/sh: %s.\n",
|
||||
errno < sys_nerr ? sys_errlist[errno] : "unknown error");
|
||||
fflush (stderr);
|
||||
_exit (0177);
|
||||
}
|
||||
|
||||
return pid;
|
||||
}
|
||||
|
||||
/* Kill the inferior process. Make us have no inferior. */
|
||||
|
||||
void
|
||||
kill_inferior ()
|
||||
{
|
||||
if (inferior_pid == 0)
|
||||
return;
|
||||
ptrace (8, inferior_pid, 0, 0);
|
||||
wait (0);
|
||||
/*************inferior_died ();****VK**************/
|
||||
}
|
||||
|
||||
/* Wait for process, returns status */
|
||||
|
||||
unsigned char
|
||||
mywait (status)
|
||||
char *status;
|
||||
{
|
||||
int pid;
|
||||
union wait w;
|
||||
|
||||
pid = wait (&w);
|
||||
if (pid != PIDGET(inferior_pid))
|
||||
perror_with_name ("wait");
|
||||
|
||||
inferior_pid = BUILDPID (inferior_pid, w.w_tid);
|
||||
|
||||
if (WIFEXITED (w))
|
||||
{
|
||||
fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w));
|
||||
*status = 'E';
|
||||
return ((unsigned char) WEXITSTATUS (w));
|
||||
}
|
||||
else if (!WIFSTOPPED (w))
|
||||
{
|
||||
fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w));
|
||||
*status = 'T';
|
||||
return ((unsigned char) WTERMSIG (w));
|
||||
}
|
||||
|
||||
fetch_inferior_registers (0);
|
||||
|
||||
*status = 'S';
|
||||
return ((unsigned char) WSTOPSIG (w));
|
||||
}
|
||||
|
||||
/* Resume execution of the inferior process.
|
||||
If STEP is nonzero, single-step it.
|
||||
If SIGNAL is nonzero, give it that signal. */
|
||||
|
||||
void
|
||||
myresume (step, signal)
|
||||
int step;
|
||||
int signal;
|
||||
{
|
||||
errno = 0;
|
||||
ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, inferior_pid, 1, signal);
|
||||
if (errno)
|
||||
perror_with_name ("ptrace");
|
||||
}
|
||||
|
||||
#undef offsetof
|
||||
#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
|
||||
|
||||
static struct econtext *
|
||||
lynx_registers_addr()
|
||||
{
|
||||
st_t *stblock;
|
||||
int ecpoff = offsetof(st_t, ecp);
|
||||
CORE_ADDR ecp;
|
||||
|
||||
errno = 0;
|
||||
stblock = (st_t *) ptrace (PTRACE_THREADUSER, inferior_pid,
|
||||
(PTRACE_ARG3_TYPE)0, 0);
|
||||
if (errno)
|
||||
perror_with_name ("PTRACE_THREADUSER");
|
||||
|
||||
ecp = (CORE_ADDR) ptrace (PTRACE_PEEKTHREAD, inferior_pid,
|
||||
(PTRACE_ARG3_TYPE)ecpoff, 0);
|
||||
ecp -= (CORE_ADDR)stblock;
|
||||
if (errno)
|
||||
perror_with_name ("lynx_registers_addr(PTRACE_PEEKTHREAD)");
|
||||
|
||||
return (struct econtext *)ecp;
|
||||
}
|
||||
|
||||
static struct econtext *ecp;
|
||||
|
||||
/* Mapping between GDB register #s and offsets into econtext. Must be
|
||||
consistent with REGISTER_NAMES macro in tm-i386v.h. */
|
||||
|
||||
#define X(ENTRY)(offsetof(struct econtext, ENTRY) / 4)
|
||||
static int regmap[] = {
|
||||
X(eax),
|
||||
X(ecx),
|
||||
X(edx),
|
||||
X(ebx),
|
||||
X(esp),
|
||||
X(ebp),
|
||||
X(esi),
|
||||
X(edi),
|
||||
X(eip),
|
||||
X(flags), /* ps */
|
||||
X(cs),
|
||||
X(ss),
|
||||
X(ds),
|
||||
X(es),
|
||||
X(ecode), /* Lynx doesn't give us either fs or gs, so */
|
||||
X(fault) /* we just substitute these two in the hopes
|
||||
that they are useful. */
|
||||
};
|
||||
|
||||
/* Fetch one or more registers from the inferior. REGNO == -1 to get
|
||||
them all. We actually fetch more than requested, when convenient,
|
||||
marking them as valid so we won't fetch them again. */
|
||||
|
||||
void
|
||||
fetch_inferior_registers (ignored)
|
||||
int ignored;
|
||||
{
|
||||
int regno;
|
||||
unsigned long reg;
|
||||
struct econtext *ecp;
|
||||
|
||||
ecp = lynx_registers_addr();
|
||||
|
||||
for (regno = 0; regno < NUM_REGS; regno++)
|
||||
{
|
||||
errno = 0;
|
||||
reg = ptrace (PTRACE_PEEKTHREAD, inferior_pid,
|
||||
(PTRACE_ARG3_TYPE) (&ecp->fault + regmap[regno]), 0);
|
||||
if (errno)
|
||||
perror_with_name ("fetch_inferior_registers(PTRACE_PEEKTHREAD)");
|
||||
|
||||
*(unsigned long *)®isters[REGISTER_BYTE (regno)] = reg;
|
||||
}
|
||||
}
|
||||
|
||||
/* Store our register values back into the inferior.
|
||||
If REGNO is -1, do this for all registers.
|
||||
Otherwise, REGNO specifies which register (so we can save time). */
|
||||
|
||||
void
|
||||
store_inferior_registers (ignored)
|
||||
int ignored;
|
||||
{
|
||||
int regno;
|
||||
unsigned long reg;
|
||||
struct econtext *ecp;
|
||||
|
||||
ecp = lynx_registers_addr();
|
||||
|
||||
for (regno = 0; regno < NUM_REGS; regno++)
|
||||
{
|
||||
reg = *(unsigned long *)®isters[REGISTER_BYTE (regno)];
|
||||
|
||||
errno = 0;
|
||||
ptrace (PTRACE_POKEUSER, inferior_pid,
|
||||
(PTRACE_ARG3_TYPE) (&ecp->fault + regmap[regno]), reg);
|
||||
if (errno)
|
||||
perror_with_name ("PTRACE_POKEUSER");
|
||||
}
|
||||
}
|
||||
|
||||
/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
|
||||
in the NEW_SUN_PTRACE case.
|
||||
It ought to be straightforward. But it appears that writing did
|
||||
not write the data that I specified. I cannot understand where
|
||||
it got the data that it actually did write. */
|
||||
|
||||
/* Copy LEN bytes from inferior's memory starting at MEMADDR
|
||||
to debugger memory starting at MYADDR. */
|
||||
|
||||
read_inferior_memory (memaddr, myaddr, len)
|
||||
CORE_ADDR memaddr;
|
||||
char *myaddr;
|
||||
int len;
|
||||
{
|
||||
register int i;
|
||||
/* Round starting address down to longword boundary. */
|
||||
register CORE_ADDR addr = memaddr & -sizeof (int);
|
||||
/* Round ending address up; get number of longwords that makes. */
|
||||
register int count
|
||||
= (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
|
||||
/* Allocate buffer of that many longwords. */
|
||||
register int *buffer = (int *) alloca (count * sizeof (int));
|
||||
|
||||
/* Read all the longwords */
|
||||
for (i = 0; i < count; i++, addr += sizeof (int))
|
||||
{
|
||||
buffer[i] = ptrace (1, inferior_pid, addr, 0);
|
||||
}
|
||||
|
||||
/* Copy appropriate bytes out of the buffer. */
|
||||
bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
|
||||
}
|
||||
|
||||
/* Copy LEN bytes of data from debugger memory at MYADDR
|
||||
to inferior's memory at MEMADDR.
|
||||
On failure (cannot write the inferior)
|
||||
returns the value of errno. */
|
||||
|
||||
int
|
||||
write_inferior_memory (memaddr, myaddr, len)
|
||||
CORE_ADDR memaddr;
|
||||
char *myaddr;
|
||||
int len;
|
||||
{
|
||||
register int i;
|
||||
/* Round starting address down to longword boundary. */
|
||||
register CORE_ADDR addr = memaddr & -sizeof (int);
|
||||
/* Round ending address up; get number of longwords that makes. */
|
||||
register int count
|
||||
= (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
|
||||
/* Allocate buffer of that many longwords. */
|
||||
register int *buffer = (int *) alloca (count * sizeof (int));
|
||||
extern int errno;
|
||||
|
||||
/* Fill start and end extra bytes of buffer with existing memory data. */
|
||||
|
||||
buffer[0] = ptrace (1, inferior_pid, addr, 0);
|
||||
|
||||
if (count > 1)
|
||||
{
|
||||
buffer[count - 1]
|
||||
= ptrace (1, inferior_pid,
|
||||
addr + (count - 1) * sizeof (int), 0);
|
||||
}
|
||||
|
||||
/* Copy data to be written over corresponding part of buffer */
|
||||
|
||||
bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
|
||||
|
||||
/* Write the entire buffer. */
|
||||
|
||||
for (i = 0; i < count; i++, addr += sizeof (int))
|
||||
{
|
||||
errno = 0;
|
||||
ptrace (4, inferior_pid, addr, buffer[i]);
|
||||
if (errno)
|
||||
return errno;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
initialize ()
|
||||
{
|
||||
inferior_pid = 0;
|
||||
}
|
||||
|
||||
int
|
||||
have_inferior_p ()
|
||||
{
|
||||
return inferior_pid != 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,151 @@
|
|||
/* Main code for remote server for GDB.
|
||||
Copyright (C) 1989, 1993 Free Software Foundation, Inc.
|
||||
|
||||
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
#include "defs.h"
|
||||
#include <setjmp.h>
|
||||
#include <signal.h>
|
||||
|
||||
void read_inferior_memory ();
|
||||
unsigned char mywait ();
|
||||
void myresume();
|
||||
void initialize ();
|
||||
int create_inferior ();
|
||||
|
||||
extern char registers[];
|
||||
int inferior_pid;
|
||||
extern char **environ;
|
||||
|
||||
/* Descriptor for I/O to remote machine. */
|
||||
int remote_desc;
|
||||
int kiodebug = 0;
|
||||
int remote_debugging;
|
||||
|
||||
void remote_send ();
|
||||
void putpkt ();
|
||||
void getpkt ();
|
||||
void remote_open ();
|
||||
void write_ok ();
|
||||
void write_enn ();
|
||||
void convert_ascii_to_int ();
|
||||
void convert_int_to_ascii ();
|
||||
void prepare_resume_reply ();
|
||||
void decode_m_packet ();
|
||||
void decode_M_packet ();
|
||||
jmp_buf toplevel;
|
||||
|
||||
main (argc, argv)
|
||||
int argc;
|
||||
char *argv[];
|
||||
{
|
||||
char ch, status, own_buf[2000], mem_buf[2000];
|
||||
int i = 0;
|
||||
unsigned char signal;
|
||||
unsigned int mem_addr, len;
|
||||
char argvec[1024];
|
||||
|
||||
if (setjmp(toplevel))
|
||||
{
|
||||
fprintf(stderr, "Exiting\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (argc < 3)
|
||||
error("Usage: gdbserver tty prog [args ...]");
|
||||
|
||||
initialize ();
|
||||
remote_open (argv[1], 0);
|
||||
|
||||
argvec[0] = '\000';
|
||||
for (i = 2; i < argc; i++)
|
||||
strcat(argvec, argv[i]);
|
||||
|
||||
inferior_pid = create_inferior (argvec, environ);
|
||||
fprintf (stderr, "Process %s created; pid = %d\n", argv[1], inferior_pid);
|
||||
|
||||
signal = mywait (&status); /* Wait till we are at 1st instr in shell */
|
||||
if (status != 'S' || signal != SIGTRAP)
|
||||
error ("Bad status from shell\n");
|
||||
myresume (0, 0); /* Start up the shell */
|
||||
signal = mywait (&status); /* Wait for program to start */
|
||||
|
||||
/* We are now stopped at the first instruction of the target process */
|
||||
|
||||
setjmp(toplevel);
|
||||
do
|
||||
{
|
||||
getpkt (own_buf);
|
||||
i = 0;
|
||||
ch = own_buf[i++];
|
||||
switch (ch)
|
||||
{
|
||||
case '?':
|
||||
prepare_resume_reply (own_buf, status, signal);
|
||||
break;
|
||||
case 'g':
|
||||
convert_int_to_ascii (registers, own_buf, REGISTER_BYTES);
|
||||
break;
|
||||
case 'G':
|
||||
convert_ascii_to_int (&own_buf[1], registers, REGISTER_BYTES);
|
||||
store_inferior_registers (-1);
|
||||
write_ok (own_buf);
|
||||
break;
|
||||
case 'm':
|
||||
decode_m_packet (&own_buf[1], &mem_addr, &len);
|
||||
read_inferior_memory (mem_addr, mem_buf, len);
|
||||
convert_int_to_ascii (mem_buf, own_buf, len);
|
||||
break;
|
||||
case 'M':
|
||||
decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf);
|
||||
if (write_inferior_memory (mem_addr, mem_buf, len) == 0)
|
||||
write_ok (own_buf);
|
||||
else
|
||||
write_enn (own_buf);
|
||||
break;
|
||||
case 'c':
|
||||
myresume (0, 0);
|
||||
signal = mywait (&status);
|
||||
prepare_resume_reply (own_buf, status, signal);
|
||||
break;
|
||||
case 's':
|
||||
myresume (1, 0);
|
||||
signal = mywait (&status);
|
||||
prepare_resume_reply (own_buf, status, signal);
|
||||
break;
|
||||
case 'k':
|
||||
kill_inferior ();
|
||||
sprintf (own_buf, "q");
|
||||
putpkt (own_buf);
|
||||
fprintf (stderr, "Obtained kill request...terminating\n");
|
||||
close (remote_desc);
|
||||
exit (0);
|
||||
default:
|
||||
printf ("\nUnknown option chosen by master\n");
|
||||
write_enn (own_buf);
|
||||
break;
|
||||
}
|
||||
|
||||
putpkt (own_buf);
|
||||
}
|
||||
while (1);
|
||||
|
||||
close (remote_desc);
|
||||
/** now get out of here**/
|
||||
fprintf (stderr, "Finished reading data from serial link - Bye!\n");
|
||||
exit (0);
|
||||
}
|
||||
|
|
@ -0,0 +1,339 @@
|
|||
/* Remote utility routines for the remote server for GDB.
|
||||
Copyright (C) 1986, 1989, 1993 Free Software Foundation, Inc.
|
||||
|
||||
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
#include "defs.h"
|
||||
#include <stdio.h>
|
||||
#include <signal.h>
|
||||
#include <sys/wait.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <a.out.h>
|
||||
#include <sys/file.h>
|
||||
#include <sgtty.h>
|
||||
|
||||
extern int remote_desc;
|
||||
extern int remote_debugging;
|
||||
extern int kiodebug;
|
||||
|
||||
void remote_open ();
|
||||
void remote_send ();
|
||||
void putpkt ();
|
||||
void getpkt ();
|
||||
|
||||
void write_ok ();
|
||||
void write_enn ();
|
||||
void convert_ascii_to_int ();
|
||||
void convert_int_to_ascii ();
|
||||
void prepare_resume_reply ();
|
||||
|
||||
/* Open a connection to a remote debugger.
|
||||
NAME is the filename used for communication. */
|
||||
|
||||
void
|
||||
remote_open (name, from_tty)
|
||||
char *name;
|
||||
int from_tty;
|
||||
{
|
||||
struct sgttyb sg;
|
||||
|
||||
remote_debugging = 0;
|
||||
|
||||
remote_desc = open (name, O_RDWR);
|
||||
if (remote_desc < 0)
|
||||
perror_with_name ("Could not open remote device");
|
||||
|
||||
ioctl (remote_desc, TIOCGETP, &sg);
|
||||
sg.sg_flags = RAW;
|
||||
ioctl (remote_desc, TIOCSETP, &sg);
|
||||
|
||||
fprintf (stderr, "Remote debugging using %s\n", name);
|
||||
remote_debugging = 1;
|
||||
}
|
||||
|
||||
/* Convert hex digit A to a number. */
|
||||
|
||||
static int
|
||||
fromhex (a)
|
||||
int a;
|
||||
{
|
||||
if (a >= '0' && a <= '9')
|
||||
return a - '0';
|
||||
else if (a >= 'a' && a <= 'f')
|
||||
return a - 'a' + 10;
|
||||
else
|
||||
error ("Reply contains invalid hex digit");
|
||||
}
|
||||
|
||||
/* Convert number NIB to a hex digit. */
|
||||
|
||||
static int
|
||||
tohex (nib)
|
||||
int nib;
|
||||
{
|
||||
if (nib < 10)
|
||||
return '0' + nib;
|
||||
else
|
||||
return 'a' + nib - 10;
|
||||
}
|
||||
|
||||
/* Send the command in BUF to the remote machine,
|
||||
and read the reply into BUF.
|
||||
Report an error if we get an error reply. */
|
||||
|
||||
void
|
||||
remote_send (buf)
|
||||
char *buf;
|
||||
{
|
||||
putpkt (buf);
|
||||
getpkt (buf);
|
||||
|
||||
if (buf[0] == 'E')
|
||||
error ("Remote failure reply: E");
|
||||
}
|
||||
|
||||
/* Send a packet to the remote machine, with error checking.
|
||||
The data of the packet is in BUF. */
|
||||
|
||||
void
|
||||
putpkt (buf)
|
||||
char *buf;
|
||||
{
|
||||
int i;
|
||||
unsigned char csum = 0;
|
||||
char buf2[2000];
|
||||
char buf3[1];
|
||||
int cnt = strlen (buf);
|
||||
char *p;
|
||||
|
||||
/* Copy the packet into buffer BUF2, encapsulating it
|
||||
and giving it a checksum. */
|
||||
|
||||
p = buf2;
|
||||
*p++ = '$';
|
||||
|
||||
for (i = 0; i < cnt; i++)
|
||||
{
|
||||
csum += buf[i];
|
||||
*p++ = buf[i];
|
||||
}
|
||||
*p++ = '#';
|
||||
*p++ = tohex ((csum >> 4) & 0xf);
|
||||
*p++ = tohex (csum & 0xf);
|
||||
|
||||
/* Send it over and over until we get a positive ack. */
|
||||
|
||||
do
|
||||
{
|
||||
write (remote_desc, buf2, p - buf2);
|
||||
read (remote_desc, buf3, 1);
|
||||
}
|
||||
while (buf3[0] != '+');
|
||||
}
|
||||
|
||||
static int
|
||||
readchar ()
|
||||
{
|
||||
char buf[1];
|
||||
while (read (remote_desc, buf, 1) != 1);
|
||||
return buf[0] & 0x7f;
|
||||
}
|
||||
|
||||
/* Read a packet from the remote machine, with error checking,
|
||||
and store it in BUF. */
|
||||
|
||||
void
|
||||
getpkt (buf)
|
||||
char *buf;
|
||||
{
|
||||
char *bp;
|
||||
unsigned char csum, c, c1, c2;
|
||||
extern kiodebug;
|
||||
|
||||
while (1)
|
||||
{
|
||||
csum = 0;
|
||||
while ((c = readchar ()) != '$');
|
||||
|
||||
bp = buf;
|
||||
while (1)
|
||||
{
|
||||
c = readchar ();
|
||||
if (c == '#')
|
||||
break;
|
||||
*bp++ = c;
|
||||
csum += c;
|
||||
}
|
||||
*bp = 0;
|
||||
|
||||
c1 = fromhex (readchar ());
|
||||
c2 = fromhex (readchar ());
|
||||
if (csum == (c1 << 4) + c2)
|
||||
break;
|
||||
|
||||
fprintf (stderr, "Bad checksum, sentsum=0x%x, csum=0x%x, buf=%s\n",
|
||||
(c1 << 4) + c2, csum, buf);
|
||||
write (remote_desc, "-", 1);
|
||||
}
|
||||
|
||||
write (remote_desc, "+", 1);
|
||||
}
|
||||
|
||||
void
|
||||
write_ok (buf)
|
||||
char *buf;
|
||||
{
|
||||
buf[0] = 'O';
|
||||
buf[1] = 'k';
|
||||
buf[2] = '\0';
|
||||
}
|
||||
|
||||
void
|
||||
write_enn (buf)
|
||||
char *buf;
|
||||
{
|
||||
buf[0] = 'E';
|
||||
buf[1] = 'N';
|
||||
buf[2] = 'N';
|
||||
buf[3] = '\0';
|
||||
}
|
||||
|
||||
void
|
||||
convert_int_to_ascii (from, to, n)
|
||||
char *from, *to;
|
||||
int n;
|
||||
{
|
||||
int nib;
|
||||
char ch;
|
||||
while (n--)
|
||||
{
|
||||
ch = *from++;
|
||||
nib = ((ch & 0xf0) >> 4) & 0x0f;
|
||||
*to++ = tohex (nib);
|
||||
nib = ch & 0x0f;
|
||||
*to++ = tohex (nib);
|
||||
}
|
||||
*to++ = 0;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
convert_ascii_to_int (from, to, n)
|
||||
char *from, *to;
|
||||
int n;
|
||||
{
|
||||
int nib1, nib2;
|
||||
while (n--)
|
||||
{
|
||||
nib1 = fromhex (*from++);
|
||||
nib2 = fromhex (*from++);
|
||||
*to++ = (((nib1 & 0x0f) << 4) & 0xf0) | (nib2 & 0x0f);
|
||||
}
|
||||
}
|
||||
|
||||
static char *
|
||||
outreg(regno, buf)
|
||||
int regno;
|
||||
char *buf;
|
||||
{
|
||||
extern char registers[];
|
||||
|
||||
*buf++ = tohex (regno >> 4);
|
||||
*buf++ = tohex (regno & 0xf);
|
||||
*buf++ = ':';
|
||||
convert_int_to_ascii (®isters[REGISTER_BYTE (regno)], buf, 4);
|
||||
buf += 8;
|
||||
*buf++ = ';';
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
void
|
||||
prepare_resume_reply (buf, status, signal)
|
||||
char *buf, status;
|
||||
unsigned char signal;
|
||||
{
|
||||
int nib;
|
||||
char ch;
|
||||
|
||||
*buf++ = 'T';
|
||||
|
||||
nib = ((signal & 0xf0) >> 4);
|
||||
*buf++ = tohex (nib);
|
||||
nib = signal & 0x0f;
|
||||
*buf++ = tohex (nib);
|
||||
|
||||
buf = outreg (PC_REGNUM, buf);
|
||||
buf = outreg (FP_REGNUM, buf);
|
||||
buf = outreg (SP_REGNUM, buf);
|
||||
#ifdef NPC_REGNUM
|
||||
buf = outreg (NPC_REGNUM, buf);
|
||||
#endif
|
||||
#ifdef O7_REGNUM
|
||||
buf = outreg (O7_REGNUM, buf);
|
||||
#endif
|
||||
|
||||
*buf++ = 0;
|
||||
}
|
||||
|
||||
void
|
||||
decode_m_packet (from, mem_addr_ptr, len_ptr)
|
||||
char *from;
|
||||
unsigned int *mem_addr_ptr, *len_ptr;
|
||||
{
|
||||
int i = 0, j = 0;
|
||||
char ch;
|
||||
*mem_addr_ptr = *len_ptr = 0;
|
||||
|
||||
while ((ch = from[i++]) != ',')
|
||||
{
|
||||
*mem_addr_ptr = *mem_addr_ptr << 4;
|
||||
*mem_addr_ptr |= fromhex (ch) & 0x0f;
|
||||
}
|
||||
|
||||
for (j = 0; j < 4; j++)
|
||||
{
|
||||
if ((ch = from[i++]) == 0)
|
||||
break;
|
||||
*len_ptr = *len_ptr << 4;
|
||||
*len_ptr |= fromhex (ch) & 0x0f;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
decode_M_packet (from, mem_addr_ptr, len_ptr, to)
|
||||
char *from, *to;
|
||||
unsigned int *mem_addr_ptr, *len_ptr;
|
||||
{
|
||||
int i = 0, j = 0;
|
||||
char ch;
|
||||
*mem_addr_ptr = *len_ptr = 0;
|
||||
|
||||
while ((ch = from[i++]) != ',')
|
||||
{
|
||||
*mem_addr_ptr = *mem_addr_ptr << 4;
|
||||
*mem_addr_ptr |= fromhex (ch) & 0x0f;
|
||||
}
|
||||
|
||||
while ((ch = from[i++]) != ':')
|
||||
{
|
||||
*len_ptr = *len_ptr << 4;
|
||||
*len_ptr |= fromhex (ch) & 0x0f;
|
||||
}
|
||||
|
||||
convert_ascii_to_int (&from[i++], to, *len_ptr);
|
||||
}
|
||||
Loading…
Reference in New Issue