*** Changes since GDB 5.1:
+* New command line option
+
+GDB now accepts --pid or -p followed by a process id.
+
+* Change in command line behavior -- corefiles vs. process ids.
+
+There is a subtle behavior in the way in which GDB handles
+command line arguments. The first non-flag argument is always
+a program to debug, but the second non-flag argument may either
+be a corefile or a process id. Previously, GDB would attempt to
+open the second argument as a corefile, and if that failed, would
+issue a superfluous error message and then attempt to attach it as
+a process. Now, if the second argument begins with a non-digit,
+it will be treated as a corefile. If it begins with a digit,
+GDB will attempt to attach it as a process, and if no such process
+is found, will then attempt to open it as a corefile.
+
* New native configurations
x86 OpenBSD i[3456]86-*-openbsd*
Sanyo XStormy16 xstormy16-elf
+* OBSOLETE configurations and files
+
+Configurations that have been declared obsolete in this release have
+been commented out. Unless there is activity to revive these
+configurations, the next release of GDB will have their sources
+permanently REMOVED.
+
+AMD 29k family via UDI a29k-amd-udi, udi29k
+A29K VxWorks a29k-*-vxworks
+AMD 29000 embedded, using EBMON a29k-none-none
+AMD 29000 embedded with COFF a29k-none-coff
+AMD 29000 embedded with a.out a29k-none-aout
+
+
* REMOVED configurations and files
TI TMS320C80 tic80-*-*
Ultracomputer (29K) running Sym1 a29k-nyu-sym1 a29k-*-kern*
Sony NEWS (68K) running NEWSOS 3.x m68*-sony-sysv news
ISI Optimum V (3.05) under 4.3bsd. m68*-isi-*
+Apple Macintosh (MPW) host and target N/A host, powerpc-*-macos*
* Changes to command line processing