What has changed in GDB?
(Organized release by release)
-*** Changes since GDB 7.11
+*** Changes since GDB 8.0
+
+* On Unix systems, GDBserver now does globbing expansion and variable
+ substitution in inferior command line arguments.
+
+ This is done by starting inferiors using a shell, like GDB does.
+ See "set startup-with-shell" in the user manual for how to disable
+ this from GDB when using "target extended-remote". When using
+ "target remote", you can disable the startup with shell by using the
+ new "--no-startup-with-shell" GDBserver command line option.
+
+* New remote packets
+
+QStartupWithShell
+ Indicates whether the inferior must be started with a shell or not.
+
+* The "maintenance print c-tdesc" command now takes an optional
+ argument which is the file name of XML target description.
+
+* New commands
+
+set debug separate-debug-file
+show debug separate-debug-file
+ Control the display of debug output about separate debug file search.
+
+* TUI Single-Key mode now supports two new shortcut keys: `i' for stepi and
+ `o' for nexti.
+
+*** Changes in GDB 8.0
+
+* GDB now supports access to the PKU register on GNU/Linux. The register is
+ added by the Memory Protection Keys for Userspace feature which will be
+ available in future Intel CPUs.
+
+* GDB now supports C++11 rvalue references.
+
+* Python Scripting
+
+ ** New functions to start, stop and access a running btrace recording.
+ ** Rvalue references are now supported in gdb.Type.
+
+* GDB now supports recording and replaying rdrand and rdseed Intel 64
+ instructions.
+
+* Building GDB and GDBserver now requires a C++11 compiler.
+
+ For example, GCC 4.8 or later.
+
+ It is no longer possible to build GDB or GDBserver with a C
+ compiler. The --disable-build-with-cxx configure option has been
+ removed.
+
+* Building GDB and GDBserver now requires GNU make >= 3.81.
+
+ It is no longer supported to build GDB or GDBserver with another
+ implementation of the make program or an earlier version of GNU make.
+
+* Native debugging on MS-Windows supports command-line redirection
+
+ Command-line arguments used for starting programs on MS-Windows can
+ now include redirection symbols supported by native Windows shells,
+ such as '<', '>', '>>', '2>&1', etc. This affects GDB commands such
+ as "run", "start", and "set args", as well as the corresponding MI
+ features.
+
+* Support for thread names on MS-Windows.
+
+ GDB now catches and handles the special exception that programs
+ running on MS-Windows use to assign names to threads in the
+ debugger.
+
+* Support for Java programs compiled with gcj has been removed.
+
+* User commands now accept an unlimited number of arguments.
+ Previously, only up to 10 was accepted.
+
+* The "eval" command now expands user-defined command arguments.
+
+ This makes it easier to process a variable number of arguments:
+
+ define mycommand
+ set $i = 0
+ while $i < $argc
+ eval "print $arg%d", $i
+ set $i = $i + 1
+ end
+ end
+
+* Target descriptions can now describe registers for sparc32 and sparc64.
+
+* GDB now supports DWARF version 5 (debug information format).
+ Its .debug_names index is not yet supported.
+
+* New native configurations
+
+FreeBSD/mips mips*-*-freebsd
+
+* New targets
+
+Synopsys ARC arc*-*-elf32
+FreeBSD/mips mips*-*-freebsd
+
+* Removed targets and native configurations
+
+Alpha running FreeBSD alpha*-*-freebsd*
+Alpha running GNU/kFreeBSD alpha*-*-kfreebsd*-gnu
+
+* New commands
+
+flash-erase
+ Erases all the flash memory regions reported by the target.
+
+maint print arc arc-instruction address
+ Print internal disassembler information about instruction at a given address.
+
+* New options
+
+set disassembler-options
+show disassembler-options
+ Controls the passing of target specific information to the disassembler.
+ If it is necessary to specify more than one disassembler option then
+ multiple options can be placed together into a comma separated list.
+ The default value is the empty string. Currently, the only supported
+ targets are ARM, PowerPC and S/390.
+
+* New MI commands
+
+-target-flash-erase
+ Erases all the flash memory regions reported by the target. This is
+ equivalent to the CLI command flash-erase.
+
+-file-list-shared-libraries
+ List the shared libraries in the program. This is
+ equivalent to the CLI command "info shared".
+
+*** Changes in GDB 7.12
+
+* GDB and GDBserver now build with a C++ compiler by default.
+
+ The --enable-build-with-cxx configure option is now enabled by
+ default. One must now explicitly configure with
+ --disable-build-with-cxx in order to build with a C compiler. This
+ option will be removed in a future release.
+
+* GDBserver now supports recording btrace without maintaining an active
+ GDB connection.
* GDB now supports a negative repeat count in the 'x' command to examine
memory backward from the given address. For example:
* Fortran: Support structures with fields of dynamic types and
arrays of dynamic types.
+* The symbol dumping maintenance commands have new syntax.
+maint print symbols [-pc address] [--] [filename]
+maint print symbols [-objfile objfile] [-source source] [--] [filename]
+maint print psymbols [-objfile objfile] [-pc address] [--] [filename]
+maint print psymbols [-objfile objfile] [-source source] [--] [filename]
+maint print msymbols [-objfile objfile] [--] [filename]
+
* GDB now supports multibit bitfields and enums in target register
descriptions.
for its own control and synchronization, invisible to the command
line.
+* The "catch syscall" command catches groups of related syscalls.
+
+ The "catch syscall" command now supports catching a group of related
+ syscalls using the 'group:' or 'g:' prefix.
+
* New commands
skip -file file
Start a new user interface instance running INTERP as interpreter,
using the TTY file for input/output.
+* Python Scripting
+
+ ** gdb.Breakpoint objects have a new attribute "pending", which
+ indicates whether the breakpoint is pending.
+ ** Three new breakpoint-related events have been added:
+ gdb.breakpoint_created, gdb.breakpoint_modified, and
+ gdb.breakpoint_deleted.
+
+signal-event EVENTID
+ Signal ("set") the given MS-Windows event object. This is used in
+ conjunction with the Windows JIT debugging (AeDebug) support, where
+ the OS suspends a crashing process until a debugger can attach to
+ it. Resuming the crashing process, in order to debug it, is done by
+ signalling an event.
+
* Support for tracepoints and fast tracepoints on s390-linux and s390x-linux
was added in GDBserver, including JIT compiling fast tracepoint's
conditional expression bytecode into native code.
=record-started,thread-group="i1",method="btrace",format="bts"
+* MI async record =thread-selected now includes the frame field. For example:
+
+ =thread-selected,id="3",frame={level="0",addr="0x00000000004007c0"}
+
* New targets
Andes NDS32 nds32*-*-elf
* New remote packets
+QStartupWithShell
+ Indicates whether the inferior must be started with a shell or not.
+
exec stop reason
Indicates that an exec system call was executed.
projects / deliverable / binutils-gdb.git / blobdiff