What has changed in GDB?
(Organized release by release)
-*** Changes since GDB 11
+*** Changes since GDB 12
+
+* "info breakpoints" now displays enabled breakpoint locations of
+ disabled breakpoints as in the "y-" state. For example:
+
+ (gdb) info breakpoints
+ Num Type Disp Enb Address What
+ 1 breakpoint keep n <MULTIPLE>
+ 1.1 y- 0x00000000000011b6 in ...
+ 1.2 y- 0x00000000000011c2 in ...
+ 1.3 n 0x00000000000011ce in ...
+
+* Support for Thread Local Storage (TLS) variables on FreeBSD arm and
+ aarch64 architectures.
+
+* GDB now supports hardware watchpoints on FreeBSD/Aarch64.
+
+* Remove support for building against Python 2, it is now only possible to
+ build GDB against Python 3.
+
+* DBX mode has been removed.
+
+* GDB now honours the DWARF prologue_end line-table entry flag the compiler can
+ emit to indicate where a breakpoint should be placed to break in a function
+ past its prologue.
+
+* Python API
+
+ ** GDB will now reformat the doc string for gdb.Command and
+ gdb.Parameter sub-classes to remove unnecessary leading
+ whitespace from each line before using the string as the help
+ output.
+
+* New commands
+
+maintenance set ignore-prologue-end-flag on|off
+maintenance show ignore-prologue-end-flag
+ This setting, which is off by default, controls whether GDB ignores the
+ PROLOGUE-END flag from the line-table when skipping prologue. This can be
+ used to force GDB to use prologue analyzers if the line-table is constructed
+ from erroneous debug information.
+
+* Changed commands
+
+maintenance info line-table
+ Add a PROLOGUE-END column to the output which indicates that an
+ entry corresponds to an address where a breakpoint should be placed
+ to be at the first instruction past a function's prologue.
+
+* Python API
+
+ ** New function gdb.format_address(ADDRESS, PROGSPACE, ARCHITECTURE),
+ that formats ADDRESS as 'address <symbol+offset>', where symbol is
+ looked up in PROGSPACE, and ARCHITECTURE is used to format address.
+ This is the same format that GDB uses when printing address, symbol,
+ and offset information from the disassembler.
+
+*** Changes in GDB 12
+
+* DBX mode is deprecated, and will be removed in GDB 13
+
+* GDB 12 is the last release of GDB that will support building against
+ Python 2. From GDB 13, it will only be possible to build GDB itself
+ with Python 3 support.
* Improved C++ template support
package is available, then, when this setting is on, disassembler
output will have styling applied.
+set ada source-charset
+show ada source-charset
+ Set the character set encoding that is assumed for Ada symbols. Valid
+ values for this follow the values that can be passed to the GNAT
+ compiler via the '-gnati' option. The default is ISO-8859-1.
+
+tui layout
+tui focus
+tui refresh
+tui window height
+ These are the new names for the old 'layout', 'focus', 'refresh',
+ and 'winheight' tui commands respectively. The old names still
+ exist as aliases to these new commands.
+
+tui window width
+winwidth
+ The new command 'tui window width', and the alias 'winwidth' allow
+ the width of a tui window to be adjusted when windows are laid out
+ in horizontal mode.
+
+set debug tui on|off
+show debug tui
+ Control the display of debug output about GDB's tui.
+
* Changed commands
+print
+ Printing of floating-point values with base-modifying formats like
+ /x has been changed to display the underlying bytes of the value in
+ the desired base. This was GDB's documented behavior, but was never
+ implemented correctly.
+
maint packet
This command can now print a reply, if the reply includes
non-printable characters. Any non-printable characters are printed
This command now includes information about the width of the tui
windows in its output.
+layout
+focus
+refresh
+winheight
+ These commands are now aliases for the 'tui layout', 'tui focus',
+ 'tui refresh', and 'tui window height' commands respectively.
+
+* GDB's Ada parser now supports an extension for specifying the exact
+ byte contents of a floating-point literal. This can be useful for
+ setting floating-point registers to a precise value without loss of
+ precision. The syntax is an extension of the based literal syntax.
+ Use, e.g., "16lf#0123abcd#" -- the number of "l"s controls the width
+ of the floating-point type, and the "f" is the marker for floating
+ point.
+
+* MI changes
+
+ ** The '-add-inferior' with no option flags now inherits the
+ connection of the current inferior, this restores the behaviour of
+ GDB as it was prior to GDB 10.
+
+ ** The '-add-inferior' command now accepts a '--no-connection'
+ option, which causes the new inferior to start without a
+ connection.
+
* New targets
-GNU/Linux/LoongArch loongarch*-*-linux*
+GNU/Linux/LoongArch loongarch*-*-linux*
+
+* Removed targets
+
+S+core score-*-*
* Python API
state information, or None, if there is no such additional
information.
+ ** New read-only attribute gdb.Type.is_scalar, which is True for
+ scalar types, and False for all other types.
+
+ ** New read-only attribute gdb.Type.is_signed. This attribute
+ should only be read when Type.is_scalar is True, and will be True
+ for signed types, and False for all other types. Attempting to
+ read this attribute for non-scalar types will raise a ValueError.
+
+ ** It is now possible to add GDB/MI commands implemented in Python.
+
* New features in the GDB remote stub, GDBserver
** GDBserver is now supported on OpenRISC GNU/Linux.
the current CPSR value for instructions without symbols; previous
versions of GDB behaved as if "set arm fallback-mode arm".
+set arm unwind-secure-frames
+ Enable unwinding from Non-secure to Secure mode on Cortex-M with
+ Security extension.
+ This can trigger security exceptions when unwinding exception stacks.
+
set disable-randomization
show disable-randomization
Standalone programs run with the virtual address space randomization enabled
projects / binutils-gdb.git / blobdiff