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[deliverable/binutils-gdb.git] / gdb / NEWS

diff --git a/gdb/NEWS b/gdb/NEWS
index 8b09cf60b7f9a5fd7ce54b4c5a142acc526ce254..a59e99b2d450964dfa88b35e0d4cda4ccd43cac8 100644 (file)
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -1,7 +1,71 @@
                What has changed in GDB?
             (Organized release by release)
 
-*** Changes since GDB 5.2:
+*** Changes since GDB 5.3:
+
+* Profiling support
+
+A new command, "maint set profile on/off", has been added.  This command can
+be used to enable or disable profiling while running GDB, to profile a
+session or a set of commands.  In addition there is a new configure switch,
+"--enable-profiling", which will cause GDB to be compiled with profiling
+data, for more informative profiling results.
+
+* Default MI syntax changed to "mi2".
+
+The default MI (machine interface) syntax, enabled by the command line
+option "-i=mi", has been changed to "mi2".  The previous MI syntax,
+"mi1", can be enabled by sepcifying the option "-i=mi1".
+
+Support for the original "mi0" syntax (included in GDB 5.0) has been
+removed.
+
+Fix for gdb/192: removed extraneous space when displaying frame level.
+Fix for gdb/672: update changelist is now output in mi list format.
+Fix for gdb/702: a -var-assign that updates the value now shows up
+                 in a subsequent -var-update.
+
+* 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.
+
+* REMOVED configurations and files
+
+V850EA ISA                             
+Motorola Delta 88000 running Sys V             m88k-motorola-sysv  or  delta88
+IBM AIX PS/2                                   i[3456]86-*-aix
+i386 running Mach 3.0                          i[3456]86-*-mach3*
+i386 running Mach                              i[3456]86-*-mach*
+i386 running OSF/1                             i[3456]86-*osf1mk*
+HP/Apollo 68k Family                           m68*-apollo*-sysv*,
+                                               m68*-apollo*-bsd*,
+                                               m68*-hp-bsd*, m68*-hp-hpux*
+Argonaut Risc Chip (ARC)                       arc-*-*
+Mitsubishi D30V                                        d30v-*-*
+Fujitsu FR30                                   fr30-*-elf*
+OS/9000                                                i[34]86-*-os9k
+I960 with MON960                               i960-*-coff
+
+* MIPS $fp behavior changed
+
+The convenience variable $fp, for the MIPS, now consistently returns
+the address of the current frame's base.  Previously, depending on the
+context, $fp could refer to either $sp or the current frame's base
+address.  See ``8.10 Registers'' in the manual ``Debugging with GDB:
+The GNU Source-Level Debugger''.
+
+*** Changes in GDB 5.3:
+
+* GNU/Linux shared library multi-threaded performance improved.
+
+When debugging a multi-threaded application on GNU/Linux, GDB now uses
+`/proc', in preference to `ptrace' for memory reads.  This may result
+in an improvement in the start-up time of multi-threaded, shared
+library applications when run under GDB.  One GDB user writes: ``loads
+shared libs like mad''.
 
 * ``gdbserver'' now supports multi-threaded applications on some targets