Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Update to GDB 6.1.1. These files are identical to the vendor branch.

Our FreeBSD custom changes are OBE. Return to using the stock vendor sources.

Fix (I believe) Bill Paul's core dump when using gdb on shared executables.
This is an addition to rev 1.5. If lm == NULL, new->lm is uninitialized.

Fix a coredump when debugging corefiles from static programs.

Merge local changes into gdb-4.18 and add changes for FreeBSD/alpha.

Fix bug: If gdb couldn't find the dynamic linker's "r_debug_state"
symbol, it aborted with "virtual memory exhausted." Now it warns
about the problem and proceeds.

Rewrite the bits of the solib code to handle implentations where dlopen
may insert into the list of loaded libraries (ours is one) instead of
appending to the end of the list. Also cope with dlclose() removing
libraries from the list.

Use the dynamic symtab of the runtime linker when looking for places to set
breakpoints. It may have been installed stripped.

This commit was generated by cvs2svn to compensate for changes in r19370,
which included commits to RCS files with non-trunk default branches.

Import GDB in its full glory (all 25mb). We'll put it on a diet once it's
fully registered.

(This is the second try, the first import ignored .info files but not .info-*
files, for some reason. I'm going to make this consistent.)

Reviewed by: core
Approved for: 2.2