* hash.c: Complete rewrite based on BFD hashing code.

Move bitfield overflow checks to after the md_apply_fix call in
fixup_segment so that md_apply_fix has a chance to modify value.
Handle 8 and 16-bit pcrel relocs for i386.
Prototypes and other minor code cleanups.

Sprout from master 1991-11-19 05:16:47 UTC Stu Grossman <grossman@cygnus> 'Initial revision'
Cherrypick from master 1998-12-21 20:06:33 UTC Elena Zannoni <ezannoni@kwikemart.cygnus.com> 'Initial revision':
    readline/INSTALL
    readline/bind.c
    readline/config.h.in
    readline/doc/Makefile.in
    readline/examples/histexamp.c
    readline/isearch.c
    readline/parens.c
    readline/search.c
    readline/shell.c
    readline/support/install.sh
    readline/support/mkdirs
    readline/tilde.c
    readline/tilde.h
    readline/xmalloc.c
Cherrypick from master 1991-05-21 19:55:06 UTC K. Richard Pixley <rich@cygnus> 'Initial revision':
    readline/Makefile.in
    readline/configure
    readline/readline.c
Cherrypick from master 1994-01-16 03:39:57 UTC Per Bothner <per@bothner.com> '	Merge in changes from bash-1.13.  The most obvious one is':
    readline/complete.c
    readline/display.c
    readline/rldefs.h
Delete:
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    gdb/rs6k-opcode.h
    gdb/saber.suppress
    gdb/signals.h
    gdb/signame.c
    gdb/signame.h
    gdb/solib.c
    gdb/source.c
    gdb/sparc-opcode.h
    gdb/sparc-pinsn.c
    gdb/sparc-tdep.c
    gdb/sparc-xdep.c
    gdb/stab.def
    gdb/stack.c
    gdb/standalone.c
    gdb/stddef.h
    gdb/stdlib.h
    gdb/stuff.c
    gdb/sun3-xdep.c
    gdb/sun386-xdep.c
    gdb/symfile.c
    gdb/symfile.h
    gdb/symm-tdep.c
    gdb/symm-xdep.c
    gdb/symmetry-tdep.c
    gdb/symmetry-xdep.c
    gdb/symmisc.c
    gdb/symtab.c
    gdb/symtab.h
    gdb/tahoe-opcode.h
    gdb/tahoe-pinsn.c
    gdb/target.c
    gdb/target.h
    gdb/tdesc.c
    gdb/tdesc.h
    gdb/terminal.h
    gdb/tm-29k.h
    gdb/tm-3b1.h
    gdb/tm-68k.h
    gdb/tm-altos.h
    gdb/tm-altosgas.h
    gdb/tm-amix.h
    gdb/tm-arm.h
    gdb/tm-bigmips.h
    gdb/tm-convex.h
    gdb/tm-delta88.h
    gdb/tm-hp300bsd.h
    gdb/tm-hp300hpux.h
    gdb/tm-i386v-g.h
    gdb/tm-i386v.h
    gdb/tm-i960.h
    gdb/tm-irix3.h
    gdb/tm-isi.h
    gdb/tm-m88k.h
    gdb/tm-merlin.h
    gdb/tm-mips.h
    gdb/tm-news.h
    gdb/tm-nindy960.h
    gdb/tm-np1.h
    gdb/tm-pn.h
    gdb/tm-pyr.h
    gdb/tm-rs6000.h
    gdb/tm-sparc.h
    gdb/tm-sun2.h
    gdb/tm-sun2os4.h
    gdb/tm-sun3.h
    gdb/tm-sun386.h
    gdb/tm-sun3os4.h
    gdb/tm-sun4os4.h
    gdb/tm-sunos.h
    gdb/tm-svr4.h
    gdb/tm-symmetry.h
    gdb/tm-tahoe.h
    gdb/tm-ultra3.h
    gdb/tm-umax.h
    gdb/tm-vax.h
    gdb/tm-vx68.h
    gdb/tm-vx960.h
    gdb/tm-vxworks68.h
    gdb/tm-vxworks960.h
    gdb/ultra3-xdep.c
    gdb/umax-xdep.c
    gdb/utils.c
    gdb/valarith.c
    gdb/valops.c
    gdb/valprint.c
    gdb/value.h
    gdb/values.c
    gdb/vax-opcode.h
    gdb/vax-pinsn.c
    gdb/vx-share/.Sanitize
    gdb/vx-share/dbgRpcLib.h
    gdb/vx-share/ptrace.h
    gdb/vx-share/reg.h
    gdb/vx-share/vxTypes.h
    gdb/vx-share/vxWorks.h
    gdb/vx-share/wait.h
    gdb/vx-share/xdr_ld.c
    gdb/vx-share/xdr_ld.h
    gdb/vx-share/xdr_ptrace.c
    gdb/vx-share/xdr_ptrace.h
    gdb/vx-share/xdr_rdb.c
    gdb/vx-share/xdr_rdb.h
    gdb/vx-share/xdr_regs.c
    gdb/vx-share/xdr_regs.h
    gdb/xcoffexec.c
    gdb/xcoffread.c
    gdb/xm-3b1.h
    gdb/xm-altos.h
    gdb/xm-amix.h
    gdb/xm-arm.h
    gdb/xm-bigmips.h
    gdb/xm-convex.h
    gdb/xm-delta88.h
    gdb/xm-hp300bsd.h
    gdb/xm-hp300hpux.h
    gdb/xm-i386mach.h
    gdb/xm-i386sco.h
    gdb/xm-i386v.h
    gdb/xm-i386v32.h
    gdb/xm-irix3.h
    gdb/xm-isi.h
    gdb/xm-m68k.h
    gdb/xm-m88k.h
    gdb/xm-merlin.h
    gdb/xm-mips.h
    gdb/xm-news.h
    gdb/xm-news1000.h
    gdb/xm-np1.h
    gdb/xm-pn.h
    gdb/xm-pyr.h
    gdb/xm-rs6000.h
    gdb/xm-rtbsd.h
    gdb/xm-sparc.h
    gdb/xm-sun2.h
    gdb/xm-sun3.h
    gdb/xm-sun386.h
    gdb/xm-sun3os4.h
    gdb/xm-sun4os4.h
    gdb/xm-svr4.h
    gdb/xm-symmetry.h
    gdb/xm-tahoe.h
    gdb/xm-ultra3.h
    gdb/xm-umax.h
    gdb/xm-vax.h
    gprof/Makefile
    gprof/Makefile.in
    gprof/arcs.c
    gprof/config/mt-i386
    gprof/config/mt-sparc
    gprof/config/tmake-i386
    gprof/config/tmake-sparc
    gprof/configure
    gprof/configure.in
    gprof/dfn.c
    gprof/gmon.h
    gprof/gprof.1
    gprof/gprof.c
    gprof/gprof.callg
    gprof/gprof.flat
    gprof/gprof.h
    gprof/hertz.c
    gprof/i386.c
    gprof/i386.h
    gprof/lookup.c
    gprof/pathnames.h
    gprof/printgprof.c
    gprof/printlist.c
    gprof/sparc.c
    gprof/sparc.h
    gprof/t.c
    gprof/tahoe.c
    gprof/tahoe.h
    gprof/vax.c
    gprof/vax.h
    include/.Sanitize
    include/COPYING
    include/ChangeLog
    include/a.out.encap.h
    include/a.out.host.h
    include/a.out.hp.h
    include/a.out.sun4.h
    include/a.out.vax.h
    include/a29k-opcode.h
    include/aout64.h
    include/ar.h
    include/arm-opcode.h
    include/bcs88kcoff.h
    include/bfd.h
    include/bout.h
    include/coff-a29k.h
    include/coff-i386.h
    include/coff-i960.h
    include/coff-m68k.h
    include/coff-m88k.h
    include/coff-mips.h
    include/coff-rs6000.h
    include/convx-opcode.h
    include/dwarf.h
    include/elf-common.h
    include/elf-external.h
    include/elf-internal.h
    include/gdbm.h
    include/getopt.h
    include/h8300-opcode.h
    include/i386-opcode.h
    include/i860-opcode.h
    include/i960-opcode.h
    include/ieee.h
    include/internalcoff.h
    include/m68k-opcode.h
    include/m88k-opcode.h
    include/mips-opcode.h
    include/np1-opcode.h
    include/ns32k-opcode.h
    include/oasys.h
    include/obstack.h
    include/pn-opcode.h
    include/pyr-opcode.h
    include/ranlib.h
    include/reloc.h
    include/sparc-opcode.h
    include/stab.def
    include/stab.gnu.h
    include/sysdep.h
    include/tahoe-opcode.h
    include/vax-opcode.h
    include/wait.h
    install.texinfo
    ld/.Sanitize
    ld/ChangeLog
    ld/Makefile
    ld/Makefile.in
    ld/README
    ld/config.h
    ld/config.sub
    ld/config/.Sanitize
    ld/config/coff-a29k.mt
    ld/config/decstation.mh
    ld/config/delta88.mh
    ld/config/dgux.mh
    ld/config/ebmon29k.mt
    ld/config/h-i386v
    ld/config/h-m68kv
    ld/config/hmake-dec3100
    ld/config/hmake-dgux
    ld/config/hmake-rtbsd
    ld/config/hmake-sun3
    ld/config/hmake-sun4
    ld/config/hmake-sun4-64
    ld/config/i386-aout.mt
    ld/config/i386v.mt
    ld/config/m68k.mt
    ld/config/m68kv.mt
    ld/config/m88k-bcs.mt
    ld/config/news.mh
    ld/config/news.mt
    ld/config/rtbsd.mh
    ld/config/sparc-ll.mh
    ld/config/sparc.mh
    ld/config/sun3.mh
    ld/config/sun4.mt
    ld/config/tmake-coff-a29k
    ld/config/tmake-m88k-bcs
    ld/config/tmake-sun4
    ld/configure
    ld/configure.in
    ld/ebmon29k.sc
    ld/gld.1
    ld/h8300hds.c
    ld/h8300hds.sc
    ld/i386aout.c
    ld/i386aout.sc
    ld/ld-emul.c
    ld/ld-gld-Ur.script
    ld/ld-gld-r.script
    ld/ld-gld.c
    ld/ld-gld.script
    ld/ld-gld68k-Ur.script
    ld/ld-gld68k-r.script
    ld/ld-gld68k.c
    ld/ld-gld68k.script
    ld/ld-gld960.c
    ld/ld-gld960.script
    ld/ld-gldm88kbcs-Ur.script
    ld/ld-gldm88kbcs-r.script
    ld/ld-gldm88kbcs.c
    ld/ld-gldm88kbcs.script
    ld/ld-lnk960-r.script
    ld/ld-lnk960.c
    ld/ld-lnk960.script
    ld/ld-vanilla.c
    ld/ld.h
    ld/ld.tex
    ld/ld.texinfo
    ld/ldemul.c
    ld/ldexp.c
    ld/ldexp.h
    ld/ldfile.c
    ld/ldfile.h
    ld/ldgld.c
    ld/ldgld.sc
    ld/ldgld.script
    ld/ldgld68k.c
    ld/ldgld68k.sc
    ld/ldgld68k.script
    ld/ldgld68kUr.sc
    ld/ldgld68kUr.script
    ld/ldgld68kr.sc
    ld/ldgld68kr.script
    ld/ldgld960.c
    ld/ldgld960.sc
    ld/ldgld960.script
    ld/ldgldUr.sc
    ld/ldgldUr.script
    ld/ldglda29k.c
    ld/ldglda29k.sc
    ld/ldglda29k.script
    ld/ldglda29kUr.sc
    ld/ldglda29kUr.script
    ld/ldglda29kr.sc
    ld/ldglda29kr.script
    ld/ldgldi386v.c
    ld/ldgldi386v.sc
    ld/ldgldi386vUr.sc
    ld/ldgldi386vr.sc
    ld/ldgldm68kv.c
    ld/ldgldm68kv.sc
    ld/ldgldm68kvUr.sc
    ld/ldgldm68kvr.sc
    ld/ldgldm88kbcs.c
    ld/ldgldm88kbcs.sc
    ld/ldgldm88kbcs.script
    ld/ldgldm88kbcsUr.sc
    ld/ldgldm88kbcsUr.script
    ld/ldgldm88kbcsr.sc
    ld/ldgldm88kbcsr.script
    ld/ldgldr.sc
    ld/ldgldr.script
    ld/ldgram.y
    ld/ldindr.c
    ld/ldindr.h
    ld/ldlang.c
    ld/ldlang.h
    ld/ldlex.h
    ld/ldlex.l
    ld/ldlnk960.c
    ld/ldlnk960.sc
    ld/ldlnk960.script
    ld/ldlnk960r.sc
    ld/ldlnk960r.script
    ld/ldm88k.c
    ld/ldm88k.sc
    ld/ldm88kUr.sc
    ld/ldm88kr.sc
    ld/ldmain.c
    ld/ldmain.h
    ld/ldmisc.c
    ld/ldmisc.h
    ld/ldsym.c
    ld/ldsym.h
    ld/ldtemplate
    ld/ldvanilla.c
    ld/ldver.c
    ld/ldver.h
    ld/ldwarn.c
    ld/ldwarn.h
    ld/ldwrite.c
    ld/ldwrite.h
    ld/mkscript.c
    ld/news.sc
    readline/.Sanitize
    readline/ChangeLog
    readline/config.sub
    readline/configure.in
    readline/doc/Makefile
    readline/doc/texindex.c
    readline/examples/Makefile
    readline/history.texi
    readline/history.texinfo
    readline/inc-hist.texi
    readline/inc-history.texinfo
    readline/inc-read.texi
    readline/inc-readline.texinfo
    readline/readline.texi
    readline/readline.texinfo
    readline/sysdep-aix.h
    readline/sysdep-norm.h

table entries, table allocation and control structure are larger now, but
collisions are reduced and string compares even further reduced.

Dump lots more statistics, especially hash code data, for --statistics.  Dump
statistics even in error cases.

Details in ChangeLog.

tagged as "vanilla" for your convenience.

There are also some comment changes.

Cherrypick from master 1991-04-04 18:19:53 UTC K. Richard Pixley <rich@cygnus> 'Initial revision':
    gas/COPYING
    gas/ChangeLog
    gas/Makefile.in
    gas/README
    gas/app.c
    gas/as.c
    gas/as.h
    gas/atof-generic.c
    gas/bignum-copy.c
    gas/bignum.h
    gas/cond.c
    gas/config/atof-ieee.c
    gas/config/atof-vax.c
    gas/config/obj-aout.c
    gas/config/obj-aout.h
    gas/config/obj-bout.c
    gas/config/obj-bout.h
    gas/config/obj-coff.c
    gas/config/obj-coff.h
    gas/config/tc-a29k.c
    gas/config/tc-a29k.h
    gas/config/tc-generic.c
    gas/config/tc-generic.h
    gas/config/tc-i386.c
    gas/config/tc-i386.h
    gas/config/tc-i860.c
    gas/config/tc-i860.h
    gas/config/tc-i960.c
    gas/config/tc-i960.h
    gas/config/tc-m68851.h
    gas/config/tc-m68k.c
    gas/config/tc-m68k.h
    gas/config/tc-ns32k.c
    gas/config/tc-ns32k.h
    gas/config/tc-sparc.c
    gas/config/tc-sparc.h
    gas/config/tc-vax.c
    gas/config/tc-vax.h
    gas/config/te-generic.h
    gas/config/te-ic960.h
    gas/config/te-sun3.h
    gas/config/vax-inst.h
    gas/configure
    gas/configure.in
    gas/debug.c
    gas/expr.c
    gas/expr.h
    gas/flonum-copy.c
    gas/flonum-mult.c
    gas/flonum.h
    gas/frags.c
    gas/frags.h
    gas/hash.c
    gas/hash.h
    gas/input-file.c
    gas/input-file.h
    gas/input-scrub.c
    gas/messages.c
    gas/obj.h
    gas/output-file.c
    gas/output-file.h
    gas/read.c
    gas/read.h
    gas/struc-symbol.h
    gas/subsegs.c
    gas/subsegs.h
    gas/symbols.c
    gas/symbols.h
    gas/tc.h
    gas/write.c
    gas/write.h
    ld/ld.h
    ld/ldexp.c
    ld/ldfile.c
    ld/ldfile.h
    ld/ldlang.h
    ld/ldlex.h
    ld/ldmain.h
    ld/ldmisc.h
    ld/ldwrite.h
Cherrypick from master 1991-03-21 21:29:06 UTC David Henkel-Wallace <gumby@cygnus> 'Initial revision':
    ld/ldexp.h
    ld/ldgram.y
    ld/ldlang.c
    ld/ldlex.l
    ld/ldmain.c
    ld/ldmisc.c
    ld/ldwrite.c
Cherrypick from master 1991-01-17 15:34:55 UTC Roland Pesch <pesch@cygnus> 'Initial revision':
    gas/doc/as.texinfo