Unify actions and commands

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

diff --git a/gdb/NEWS b/gdb/NEWS
index 657d0a2db2a3db132e69195e388395bb851b3881..aa88e48436cb4df143deebf062e39aa000414eb6 100644 (file)
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -1,7 +1,56 @@
                What has changed in GDB?
             (Organized release by release)
 
                What has changed in GDB?
             (Organized release by release)
 

-*** Changes since GDB 7.0
+*** Changes since GDB 7.1
+
+* The --batch flag now disables pagination and queries.
+
+* X86 general purpose registers
+
+  GDB now supports reading/writing byte, word and double-word x86
+  general purpose registers directly.  This means you can use, say,
+  $ah or $ax to refer, respectively, to the byte register AH and
+  16-bit word register AX that are actually portions of the 32-bit
+  register EAX or 64-bit register RAX.
+
+* Python scripting
+
+** The GDB Python API now has access to symbols, symbol tables, and
+   frame's code blocks.
+
+** New methods gdb.target_charset and gdb.target_wide_charset.
+
+* Tracepoint actions were unified with breakpoint commands. In particular,
+there are no longer differences in "info break" output for breakpoints and
+tracepoints and the "commands" command can be used for both tracepoints and
+regular breakpoints.
+
+* New targets
+
+ARM Symbian                    arm*-*-symbianelf*
+
+*** Changes in GDB 7.1
+
+* C++ Improvements
+
+  ** Namespace Support
+
+  GDB now supports importing of namespaces in C++.  This enables the
+  user to inspect variables from imported namespaces.  Support for
+  namepace aliasing has also been added.  So, if a namespace is 
+  aliased in the current scope (e.g. namepace C=A; ) the user can 
+  print variables using the alias (e.g. (gdb) print C::x).
+
+  ** Bug Fixes
+
+  All known bugs relating to the printing of virtual base class were
+  fixed.  It is now possible to call overloaded static methods using a
+  qualified name.
+
+  ** Cast Operators
+
+  The C++ cast operators static_cast<>, dynamic_cast<>, const_cast<>,
+  and reinterpret_cast<> are now handled by the C++ expression parser.

 
 * New targets
 
 
 * New targets
 


@@ -61,6 +110,23 @@ Renesas RX                  rx
   tell the target agent whether to continue running a trace if the
   connection is lost unexpectedly.
 
   tell the target agent whether to continue running a trace if the
   connection is lost unexpectedly.
 

+  ** Trace files
+
+  GDB now has the ability to save the trace buffer into a file, and
+  then use that file as a target, similarly to you can do with
+  corefiles.  You can select trace frames, print data that was
+  collected in them, and use tstatus to display the state of the
+  tracing run at the moment that it was saved.  To create a trace
+  file, use "tsave <filename>", and to use it, do "target tfile
+  <name>".
+
+  ** Circular trace buffer
+
+  You can ask the target agent to handle the trace buffer as a
+  circular buffer, discarding the oldest trace frames to make room for
+  newer ones, by setting circular-trace-buffer to on.  This feature may
+  not be available for all target agents.
+

 * Changed commands
 
 disassemble
 * Changed commands
 
 disassemble


@@ -71,6 +137,14 @@ info variables
   The info variables command now displays variable definitions.  Files
   which only declare a variable are not shown.
 
   The info variables command now displays variable definitions.  Files
   which only declare a variable are not shown.
 

+source
+  The source command is now capable of sourcing Python scripts.
+  This feature is dependent on the debugger being build with Python
+  support.
+
+  Related to this enhancement is also the introduction of a new command
+  "set script-extension" (see below).
+

 * New commands (for set/show, see "New options" below)
 
 record save [<FILENAME>]
 * New commands (for set/show, see "New options" below)
 
 record save [<FILENAME>]


@@ -153,6 +227,45 @@ show disconnected-tracing
    loses its connection to GDB.  If 0, the target is to stop tracing
    upon disconnection.
 
    loses its connection to GDB.  If 0, the target is to stop tracing
    upon disconnection.
 

+set circular-trace-buffer
+show circular-trace-buffer
+   If set to on, the target is instructed to use a circular trace buffer
+   and discard the oldest trace frames instead of stopping the trace due
+   to a full trace buffer.  If set to off, the trace stops when the buffer
+   fills up.  Some targets may not support this.
+
+set script-extension off|soft|strict
+show script-extension
+   If set to "off", the debugger does not perform any script language
+   recognition, and all sourced files are assumed to be GDB scripts.
+   If set to "soft" (the default), files are sourced according to
+   filename extension, falling back to GDB scripts if the first
+   evaluation failed.
+   If set to "strict", files are sourced according to filename extension.
+
+set ada trust-PAD-over-XVS on|off
+show ada trust-PAD-over-XVS
+   If off, activate a workaround against a bug in the debugging information
+   generated by the compiler for PAD types (see gcc/exp_dbug.ads in
+   the GCC sources for more information about the GNAT encoding and
+   PAD types in particular).  It is always safe to set this option to
+   off, but this introduces a slight performance penalty.  The default
+   is on.
+
+* Python API Improvements
+
+  ** GDB provides the new class gdb.LazyString.  This is useful in
+     some pretty-printing cases.  The new method gdb.Value.lazy_string
+     provides a simple way to create objects of this type.
+
+  ** The fields returned by gdb.Type.fields now have an
+     `is_base_class' attribute.
+
+  ** The new method gdb.Type.range returns the range of an array type.
+
+  ** The new method gdb.parse_and_eval can be used to parse and
+     evaluate an expression.
+

 * New remote packets
 
 QTDV
 * New remote packets
 
 QTDV


@@ -164,6 +277,9 @@ qTV
 QTDisconnected
    Set desired tracing behavior upon disconnection.
 
 QTDisconnected
    Set desired tracing behavior upon disconnection.
 

+QTBuffer:circular
+   Set the trace buffer to be linear or circular.
+

 qTfP, qTsP
    Get data about the tracepoints currently in use.
 
 qTfP, qTsP
    Get data about the tracepoints currently in use.
 


@@ -189,6 +305,11 @@ much more reliable. In particular:
   - GDB is now able to backtrace through the signal handler for
     non-threaded programs.
 
   - GDB is now able to backtrace through the signal handler for
     non-threaded programs.
 

+PIE (Position Independent Executable) programs debugging is now supported.
+This includes debugging execution of PIC (Position Independent Code) shared
+libraries although for that, it should be possible to run such libraries as an
+executable program.
+

 *** Changes in GDB 7.0
 
 * GDB now has an interface for JIT compilation.  Applications that
 *** Changes in GDB 7.0
 
 * GDB now has an interface for JIT compilation.  Applications that


@@ -204,7 +325,7 @@ the target for evaluation using the same bytecode format as is used
 for tracepoint actions.
 
 * "disassemble" command with a /r modifier, print the raw instructions
 for tracepoint actions.
 
 * "disassemble" command with a /r modifier, print the raw instructions

-in hex as well as in symbolic form."
+in hex as well as in symbolic form.

 
 * Process record and replay
 
 
 * Process record and replay