What has changed in GDB?
(Organized release by release)
-*** Changes since GDB 8.3
+*** Changes since GDB 9
+
+* Debugging MS-Windows processes now sets $_exitsignal when the
+ inferior is terminated by a signal, instead of setting $_exitcode.
+
+* Multithreaded symbol loading has now been enabled by default on systems
+ that support it (see entry for GDB 9, below), providing faster
+ performance for programs with many symbols.
+
+*** Changes in GDB 9
* 'thread-exited' event is now available in the annotations interface.
provide the exitcode or exit status of the shell commands launched by
GDB commands such as "shell", "pipe" and "make".
+* The command define-prefix can now define user defined prefix commands.
+ User defined commands can now be defined using these user defined prefix
+ commands.
+
+* Command names can now use the . character.
+
* The RX port now supports XML target descriptions.
* GDB now shows the Ada task names at more places, e.g. in task switching
with extensions .gdb, .py and .scm are supported as long as GDB was
compiled with support for that language.
+* GDB now supports multithreaded symbol loading for higher performance.
+ This feature is still in testing, so it is disabled by default. You
+ can turn it on using 'maint set worker-threads unlimited'.
+
+* Multi-target debugging support
+
+ GDB now supports debugging multiple target connections
+ simultaneously. For example, you can now have each inferior
+ connected to different remote servers running in different machines,
+ or have one inferior debugging a local native process, an inferior
+ debugging a core dump, etc.
+
+ This support is experimental and comes with some limitations -- you
+ can only resume multiple targets simultaneously if all targets
+ support non-stop mode, and all remote stubs or servers must support
+ the same set of remote protocol features exactly. See also "info
+ connections" and "add-inferior -no-connection" below, and "maint set
+ target-non-stop" in the user manual.
+
* Python API
** The gdb.Value type has a new method 'format_string' which returns a
With no COMMAND, repeat the last executed command
and send its output to SHELL_COMMAND.
+define-prefix COMMAND
+ Define or mark a command as a user-defined prefix command.
+
with SETTING [VALUE] [-- COMMAND]
w SETTING [VALUE] [-- COMMAND]
Temporarily set SETTING, run COMMAND, and restore SETTING.
The default max-depth is 20, but this can be set to unlimited to get
the old behavior back.
+set print raw-values [on|off]
+show print raw-values
+ By default, GDB applies the enabled pretty printers when printing a
+ value. This allows to ignore the enabled pretty printers for a series
+ of commands. The default is 'off'.
+
set logging debugredirect [on|off]
By default, GDB debug output will go to both the terminal and the logfile.
Set if you want debug output to go only to the log file.
set style highlight intensity VALUE
Control the styling of highlightings.
+maint set worker-threads
+maint show worker-threads
+ Control the number of worker threads that can be used by GDB. The
+ default is 0. "unlimited" lets GDB choose a number that is
+ reasonable. Currently worker threads are only used when demangling
+ the names of linker symbols.
+
+set style tui-border foreground COLOR
+set style tui-border background COLOR
+ Control the styling of TUI borders.
+
+set style tui-active-border foreground COLOR
+set style tui-active-border background COLOR
+ Control the styling of the active TUI border.
+
maint set test-settings KIND
maint show test-settings KIND
A set of commands used by the testsuite for exercising the settings
'frame', 'stepi'. The python frame filtering also respect this setting.
The 'backtrace' '-frame-info' option can override this global setting.
+set tui compact-source
+show tui compact-source
+
+ Enable the "compact" display mode for the TUI source window. The
+ compact display uses only as much space as is needed for the line
+ numbers in the current file, and only a single space to separate the
+ line numbers from the source.
+
info modules [-q] [REGEXP]
Return a list of Fortran modules matching REGEXP, or all modules if
no REGEXP is given.
"set debug remote".
The default is 512 bytes.
+info connections
+ Lists the target connections currently in use.
+
* Changed commands
help
old commands are now deprecated and may be removed in a future
release.
+add-inferior [-no-connection]
+ The add-inferior command now supports a "-no-connection" flag that
+ makes the new inferior start with no target connection associated.
+ By default, the new inferior inherits the target connection of the
+ current inferior. See also "info connections".
+
+info inferior
+ This command's output now includes a new "Connection" column
+ indicating which target connection an inferior is bound to. See
+ "info connections" above.
+
maint test-options require-delimiter
maint test-options unknown-is-error
maint test-options unknown-is-operand
-null-stop [on|off]
-object [on|off]
-pretty [on|off]
+ -raw-values [on|off]
-repeats NUMBER|unlimited
-static-members [on|off]
-symbol [on|off]
"on" if omitted. This allows writing compact command invocations,
like for example:
- (gdb) p -r -p -o 0 -- *myptr
+ (gdb) p -ra -p -o 0 -- *myptr
The above is equivalent to:
- (gdb) print -raw -pretty -object off -- *myptr
+ (gdb) print -raw-values -pretty -object off -- *myptr
** The "info types" command now supports the '-q' flag to disable
printing of some header information in a similar fashion to "info
These can be used to catch C++ exceptions in a similar fashion to
the CLI commands 'catch throw', 'catch rethrow', and 'catch catch'.
+-symbol-info-functions, -symbol-info-types, and -symbol-info-variables
+ These commands are the MI equivalent of the CLI commands 'info
+ functions', 'info types', and 'info variables' respectively.
+
+-symbol-info-modules, this is the MI equivalent of the CLI 'info
+ modules' command.
+
+-symbol-info-module-functions and -symbol-info-module-variables.
+ These commands are the MI equivalent of the CLI commands 'info
+ module functions' and 'info module variables'.
+
* Other MI changes
** The default version of the MI interpreter is now 3 (-i=mi3).
projects / deliverable / binutils-gdb.git / blobdiff