*** Changes since GDB 7.4
+* The "info os" command on GNU/Linux can now display information on
+ several new classes of objects managed by the operating system:
+ "info os procgroups" lists process groups
+ "info os files" lists file descriptors
+ "info os sockets" lists internet-domain sockets
+ "info os shm" lists shared-memory regions
+ "info os semaphores" lists semaphores
+ "info os msg" lists message queues
+ "info os modules" lists loaded kernel modules
+
+* GDB now has support for SDT (Static Defined Tracing) probes. Currently,
+ the only implemented backend is for SystemTap probes (<sys/sdt.h>). You
+ can set a breakpoint using the new "-probe, "-pstap" or "-probe-stap"
+ options and inspect the probe arguments using the new $_probe_arg family
+ of convenience variables. You can obtain more information about SystemTap
+ in <http://sourceware.org/systemtap/>.
+
+* GDB now supports reversible debugging on ARM, it allows you to
+ debug basic ARM and THUMB instructions, and provides
+ record/replay support.
+
+* The option "symbol-reloading" has been deleted as it is no longer used.
+
* Python scripting
** GDB commands implemented in Python can now be put in command class
frame in order to compute its value, and the latter computes the
symbol's value.
+ ** A new method 'referenced_value' on gdb.Value objects which can
+ dereference pointer as well as C++ reference values.
+
+ ** New methods 'global_block' and 'static_block' on gdb.Symtab objects
+ which return the global and static blocks (as gdb.Block objects),
+ of the underlying symbol table, respectively.
+
+* Go language support.
+ GDB now supports debugging programs written in the Go programming
+ language.
+
* GDBserver now supports stdio connections.
E.g. (gdb) target remote | ssh myhost gdbserver - hello
* The "info static-tracepoint-marker" command will now also work on
native Linux targets with in-process agent.
+* GDB can now set breakpoints on inlined functions.
+
+* The .gdb_index section has been updated to include symbols for
+ inlined functions. GDB will ignore older .gdb_index sections by
+ default, which could cause symbol files to be loaded more slowly
+ until their .gdb_index sections can be recreated. The new option
+ --use-deprecated-index-sections will cause GDB to use any older
+ .gdb_index sections it finds. This will restore performance, but
+ the ability to set breakpoints on inlined functions will be lost
+ in symbol files with older .gdb_index sections.
+
+* Ada support for GDB/MI Variable Objects has been added.
+
+* GDB can now support 'breakpoint always-inserted mode' in 'record'
+ target.
+
* New commands
** "catch load" and "catch unload" can be used to stop when a shared
** "enable count" can be used to auto-disable a breakpoint after
several hits.
+ ** "info vtbl" can be used to show the virtual method tables for
+ C++ and Java objects.
+
+ ** "explore" and its sub commands "explore value" and "explore type"
+ can be used to reccursively explore values and types of
+ expressions. These commands are available only if GDB is
+ configured with '--with-python'.
+
+ ** "info auto-load" shows status of all kinds of auto-loaded files,
+ "info auto-load gdb-scripts" shows status of auto-loading GDB canned
+ sequences of commands files, "info auto-load python-scripts"
+ shows status of auto-loading Python script files,
+ "info auto-load local-gdbinit" shows status of loading init file
+ (.gdbinit) from current directory and "info auto-load libthread-db" shows
+ status of inferior specific thread debugging shared library loading.
+
+ ** "info auto-load-scripts", "set auto-load-scripts on|off"
+ and "show auto-load-scripts" commands have been deprecated, use their
+ "info auto-load python-scripts", "set auto-load python-scripts on|off"
+ and "show auto-load python-scripts" counterparts instead.
+
* New targets
Renesas RL78 rl78-*-elf
set breakpoint condition-evaluation
show breakpoint condition-evaluation
- Controls whether breakpoint conditions are evaluated by GDB ("gdb") or by
- GDBserver ("target").
+ Control whether breakpoint conditions are evaluated by GDB ("host") or by
+ GDBserver ("target"). Default option "auto" chooses the most efficient
+ available mode.
This option can improve debugger efficiency depending on the speed of the
target.
+set auto-load off
+ Disable auto-loading globally.
+
+show auto-load
+ Show auto-loading setting of all kinds of auto-loaded files.
+
+set auto-load gdb-scripts on|off
+show auto-load gdb-scripts
+ Control auto-loading of GDB canned sequences of commands files.
+
+set auto-load python-scripts on|off
+show auto-load python-scripts
+ Control auto-loading of Python script files.
+
+set auto-load local-gdbinit on|off
+show auto-load local-gdbinit
+ Control loading of init file (.gdbinit) from current directory.
+
+set auto-load libthread-db on|off
+show auto-load libthread-db
+ Control auto-loading of inferior specific thread debugging shared library.
+
+set auto-load scripts-directory <dir1>[:<dir2>...]
+ Set a list of directories from which to load auto-loaded scripts.
+ Automatically loaded Python scripts and GDB scripts are located in one
+ of the directories listed by this option.
+ The delimiter (':' above) may differ according to the host platform.
+
+set auto-load safe-path <dir1>[:<dir2>...]
+show auto-load safe-path
+ Set a list of directories from which it is safe to auto-load files.
+ The delimiter (':' above) may differ according to the host platform.
+
+set debug auto-load on|off
+show debug auto-load
+ Control display of debugging info for auto-loading the files above.
+
+* New configure options
+
+--with-auto-load-dir
+ Configure default value for the 'set auto-load scripts-directory'
+ setting above. It defaults to '$ddir/auto-load', $ddir representing
+ GDB's data directory (available via show data-directory).
+
+--with-auto-load-safe-path
+ Configure default value for the 'set auto-load safe-path' setting
+ above. It defaults to the --with-auto-load-dir setting.
+
+--without-auto-load-safe-path
+ Set 'set auto-load safe-path' to '/', effectively disabling this
+ security feature.
+
* New remote packets
z0/z1 conditional breakpoints extension
Specify the signals which the remote stub may pass to the debugged
program without GDB involvement.
+* New command line options
+
+--init-command=FILE, -ix Like --command, -x but execute it
+ before loading inferior.
+--init-eval-command=COMMAND, -iex Like --eval-command=COMMAND, -ex but
+ execute it before loading inferior.
+
*** Changes in GDB 7.4
* GDB now handles ambiguous linespecs more consistently; the existing
projects / deliverable / binutils-gdb.git / blobdiff