X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2FNEWS;h=b0da564c36bde288a7d8c1887275bcdeb097867c;hb=7fe550fc4986f19a766650a76551a4ff4985ef5c;hp=b38399894d20edbf00cb674c4bf91f2977e2fda2;hpb=ae53ffa4b631eede55fa98f7b27050d54024c575;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/NEWS b/gdb/NEWS
index b38399894d..b0da564c36 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -1,10 +1,148 @@
 		What has changed in GDB?
 	     (Organized release by release)
 
-*** Changes since GDB 7.2
+*** Changes since GDB 7.3
+
+* GDB has two new commands: "set remote hardware-watchpoint-length-limit"
+  and "show remote hardware-watchpoint-length-limit".  These allows to
+  set or show the maximum length limit (in bytes) of a remote
+  target hardware watchpoint.
+
+  This allows e.g. to use "unlimited" hardware watchpoints with the
+  gdbserver integrated in Valgrind version >= 3.7.0.  Such Valgrind
+  watchpoints are slower than real hardware watchpoints but are
+  significantly faster than gdb software watchpoints.
+
+* Python scripting
+
+  ** The "maint set python print-stack on|off" command has been
+     deprecated, and a new command: "set python print-stack on|off" has
+     replaced it.  Additionally, the default for "print-stack" is now
+     "off".
+   
+  ** A prompt subsitution hook (prompt_hook) is now available to the
+     Python API.
+
+* libthread-db-search-path now supports two special values: $sdir and $pdir.
+  $sdir specifies the default system locations of shared libraries.
+  $pdir specifies the directory where the libpthread used by the application
+  lives.
+
+  GDB no longer looks in $sdir and $pdir after it has searched the directories
+  mentioned in libthread-db-search-path.  If you want to search those
+  directories, they must be specified in libthread-db-search-path.
+  The default value of libthread-db-search-path on GNU/Linux and Solaris
+  systems is now "$sdir:$pdir".
+
+  $pdir is not supported by gdbserver, it is currently ignored.
+  $sdir is supported by gdbserver.
+
+* New configure option --with-iconv-bin.
+  When using the internationalization support like the one in the GNU C
+  library, GDB will invoke the "iconv" program to get a list of supported
+  character sets.  If this program lives in a non-standard location, one can
+  use this option to specify where to find it.
+
+* When natively debugging programs on PowerPC BookE processors running
+  a Linux kernel version 2.6.34 or later, GDB supports masked hardware
+  watchpoints, which specify a mask in addition to an address to watch.
+  The mask specifies that some bits of an address (the bits which are
+  reset in the mask) should be ignored when matching the address accessed
+  by the inferior against the watchpoint address.  See the "PowerPC Embedded"
+  section in the user manual for more details.
+
+* The new option --once causes GDBserver to stop listening for connections once
+  the first connection is made.  The listening port used by GDBserver will
+  become available after that.
+
+* New commands "info macros", and "info definitions" have been added.
+
+* Changed commands
+
+watch EXPRESSION mask MASK_VALUE
+  The watch command now supports the mask argument which allows creation
+  of masked watchpoints, if the current architecture supports this feature.
+
+info auto-load-scripts [REGEXP]
+  This command was formerly named "maintenance print section-scripts".
+  It is now generally useful and is no longer a maintenance-only command.
+
+* Tracepoints can now be enabled and disabled at any time after a trace
+  experiment has been started using the standard "enable" and "disable"
+  commands.  It is now possible to start a trace experiment with no enabled
+  tracepoints; GDB will display a warning, but will allow the experiment to
+  begin, assuming that tracepoints will be enabled as needed while the trace
+  is running.
+
+* New remote packets
+
+QTEnable
+  
+  Dynamically enable a tracepoint in a started trace experiment.
+
+QTDisable
+
+  Dynamically disable a tracepoint in a started trace experiment.
+
+* Dcache size (number of lines) and line-size are now runtime-configurable
+  via "set dcache line" and "set dcache line-size" commands.
+
+*** Changes in GDB 7.3
+
+* GDB has a new command: "thread find [REGEXP]".
+  It finds the thread id whose name, target id, or thread extra info
+  matches the given regular expression.
+
+* The "catch syscall" command now works on mips*-linux* targets.
+
+* The -data-disassemble MI command now supports modes 2 and 3 for
+  dumping the instruction opcodes.
+
+* New command line options
+
+-data-directory DIR	Specify DIR as the "data-directory".
+			This is mostly for testing purposes.
+
+* The "maint set python auto-load on|off" command has been renamed to
+  "set auto-load-scripts on|off".
+
+* GDB has a new command: "set directories".
+  It is like the "dir" command except that it replaces the
+  source path list instead of augmenting it.
+
+* GDB now understands thread names.
+
+  On GNU/Linux, "info threads" will display the thread name as set by
+  prctl or pthread_setname_np.
+
+  There is also a new command, "thread name", which can be used to
+  assign a name internally for GDB to display.
+
+* OpenCL C
+  Initial support for the OpenCL C language (http://www.khronos.org/opencl)
+  has been integrated into GDB.
 
 * Python scripting
 
+  ** The function gdb.Write now accepts an optional keyword 'stream'.
+     This keyword, when provided, will direct the output to either
+     stdout, stderr, or GDB's logging output.
+
+  ** Parameters can now be be sub-classed in Python, and in particular
+     you may implement the get_set_doc and get_show_doc functions.
+     This improves how Parameter set/show documentation is processed
+     and allows for more dynamic content.
+
+  ** Symbols, Symbol Table, Symbol Table and Line, Object Files,
+     Inferior, Inferior Thread, Blocks, and Block Iterator APIs now
+     have an is_valid method.
+
+  ** Breakpoints can now be sub-classed in Python, and in particular
+     you may implement a 'stop' function that is executed each time
+     the inferior reaches that breakpoint.   
+
+  ** New function gdb.lookup_global_symbol looks up a global symbol.
+
   ** GDB values in Python are now callable if the value represents a
      function.  For example, if 'some_value' represents a function that
      takes two integer parameters and returns a value, you can call
@@ -12,6 +150,35 @@
 
      result = some_value (10,20)
 
+  ** Module gdb.types has been added.
+     It contains a collection of utilities for working with gdb.Types objects:
+     get_basic_type, has_field, make_enum_dict.
+
+  ** Module gdb.printing has been added.
+     It contains utilities for writing and registering pretty-printers.
+     New classes: PrettyPrinter,  SubPrettyPrinter,
+     RegexpCollectionPrettyPrinter.
+     New function: register_pretty_printer.
+
+  ** New commands "info pretty-printers", "enable pretty-printer" and
+     "disable pretty-printer" have been added.
+
+  ** gdb.parameter("directories") is now available.
+
+  ** New function gdb.newest_frame returns the newest frame in the
+     selected thread.
+
+  ** The gdb.InferiorThread class has a new "name" attribute.  This
+     holds the thread's name.
+
+  ** Python Support for Inferior events.
+     Python scripts can add observers to be notified of events
+     occurring in the process being debugged.
+     The following events are currently supported:
+     - gdb.events.cont Continue event.
+     - gdb.events.exited Inferior exited event.
+     - gdb.events.stop Signal received, and Breakpoint hit events.
+
 * C++ Improvements:
 
   ** GDB now puts template parameters in scope when debugging in an
@@ -23,6 +190,19 @@
      feature requires proper debuginfo support from the compiler; it
      was added to GCC 4.5.
 
+  ** The motion commands "next", "finish", "until", and "advance" now
+     work better when exceptions are thrown.  In particular, GDB will
+     no longer lose control of the inferior; instead, the GDB will
+     stop the inferior at the point at which the exception is caught.
+     This functionality requires a change in the exception handling
+     code that was introduced in GCC 4.5.
+
+* GDB now follows GCC's rules on accessing volatile objects when
+  reading or writing target state during expression evaluation.
+  One notable difference to prior behavior is that "print x = 0"
+  no longer generates a read of x; the value of the assignment is
+  now always taken directly from the value being assigned.
+
 * GDB now has some support for using labels in the program's source in
   linespecs.  For instance, you can use "advance label" to continue
   execution to a label.
@@ -62,6 +242,40 @@
   libthread_db library with the "set libthread-db-search-path"
   command.  See the user manual for more details on this command.
 
+* When natively debugging programs on PowerPC BookE processors running
+  a Linux kernel version 2.6.34 or later, GDB supports ranged breakpoints,
+  which stop execution of the inferior whenever it executes an instruction
+  at any address within the specified range.  See the "PowerPC Embedded"
+  section in the user manual for more details.
+
+* New features in the GDB remote stub, GDBserver
+
+  ** GDBserver is now supported on PowerPC LynxOS (versions 4.x and 5.x),
+     and i686 LynxOS (version 5.x).
+
+  ** GDBserver is now supported on Blackfin Linux.
+
+* New native configurations
+
+ia64 HP-UX                      ia64-*-hpux*
+
+* New targets:
+
+Analog Devices, Inc. Blackfin Processor	bfin-*
+
+* Ada task switching is now supported on sparc-elf targets when
+  debugging a program using the Ravenscar Profile.  For more information,
+  see the "Tasking Support when using the Ravenscar Profile" section
+  in the GDB user manual.
+
+* Guile support was removed.
+
+* New features in the GNU simulator
+
+  ** The --map-info flag lists all known core mappings.
+
+  ** CFI flashes may be simulated via the "cfi" device.
+
 *** Changes in GDB 7.2
 
 * Shared library support for remote targets by default