Move 64-bit BFD files from ALL_TARGET_OBS to ALL_64_TARGET_OBS

[binutils-gdb.git] / gdb / NEWS

diff --git a/gdb/NEWS b/gdb/NEWS
index 4e12ebfb0bdac338acb5008cf25df57d0b415121..dac6dabfa42f37066acf3bd96e00b980a7d17c26 100644 (file)
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -1,10 +1,71 @@
                What has changed in GDB?
             (Organized release by release)
 
                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
 
 
 * 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
 
   GDB now treats functions/types involving C++ templates like it does function
 * Improved C++ template support
 
   GDB now treats functions/types involving C++ templates like it does function


@@ -119,8 +180,32 @@ show ada source-charset
   values for this follow the values that can be passed to the GNAT
   compiler via the '-gnati' option.  The default is ISO-8859-1.
 
   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
 
 * 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
 maint packet
   This command can now print a reply, if the reply includes
   non-printable characters.  Any non-printable characters are printed


@@ -144,6 +229,13 @@ info win
   This command now includes information about the width of the tui
   windows in its output.
 
   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
 * 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


@@ -158,9 +250,17 @@ info win
     connection of the current inferior, this restores the behaviour of
     GDB as it was prior to GDB 10.
 
     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
 
 * New targets
 

-GNU/Linux/LoongArch    loongarch*-*-linux*
+GNU/Linux/LoongArch            loongarch*-*-linux*
+
+* Removed targets
+
+S+core                         score-*-*

 
 * Python API
 
 
 * Python API
 


@@ -228,6 +328,16 @@ GNU/Linux/LoongArch    loongarch*-*-linux*
      state information, or None, if there is no such additional
      information.
 
      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.
 * New features in the GDB remote stub, GDBserver
 
   ** GDBserver is now supported on OpenRISC GNU/Linux.


@@ -5124,6 +5234,11 @@ show arm force-mode
   the current CPSR value for instructions without symbols; previous
   versions of GDB behaved as if "set arm fallback-mode arm".
 
   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
 set disable-randomization
 show disable-randomization
   Standalone programs run with the virtual address space randomization enabled