SUSE-RU-2022:4336-1: moderate: Recommended update for gdb

sle-updates at lists.suse.com sle-updates at lists.suse.com
Tue Dec 6 20:24:17 UTC 2022


   SUSE Recommended Update: Recommended update for gdb
______________________________________________________________________________

Announcement ID:    SUSE-RU-2022:4336-1
Rating:             moderate
References:         PED-2035 PM-3603 
Affected Products:
                    SUSE Linux Enterprise Desktop 15-SP4
                    SUSE Linux Enterprise High Performance Computing 15-SP4
                    SUSE Linux Enterprise Module for Development Tools 15-SP4
                    SUSE Linux Enterprise Server 15-SP4
                    SUSE Linux Enterprise Server for SAP Applications 15-SP4
                    SUSE Manager Proxy 4.3
                    SUSE Manager Retail Branch Server 4.3
                    SUSE Manager Server 4.3
                    openSUSE Leap 15.3
                    openSUSE Leap 15.4
______________________________________________________________________________

   An update that has 0 recommended fixes and contains two
   features can now be installed.

Description:


   gdb was updated to version 12.1:

   * 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
     overloads.  Users may omit parameter lists to set breakpoints on
      families of template functions, including types/functions composed of
      multiple template types:

       (gdb) break template_func(template_1, int)

     The above will set breakpoints at every function `template_func' where
   the first function parameter is any template type named `template_1' and
   the second function parameter is `int'. TAB completion also gains similar
   improvements.

   * New commands:

     - maint set backtrace-on-fatal-signal on|off
     - maint show backtrace-on-fatal-signal

     This setting is 'on' by default.  When 'on' GDB will print a limited
   backtrace to stderr in the situation where GDB terminates with a fatal
   signal.  This only supported on some platforms where the backtrace and
   backtrace_symbols_fd functions are available.

     - set source open on|off
     - show source open

     This setting, which is on by default, controls whether GDB will try to
   open source code files.  Switching this off will stop GDB trying to open
   and read source code files, which can be useful if the files are located
   over a slow network connection.

     - set varsize-limit
     - show varsize-limit

     These are now deprecated aliases for "set max-value-size" and "show
   max-value-size".

     - task apply [all | TASK-IDS...] [FLAG]... COMMAND

     Like "thread apply", but applies COMMAND to Ada tasks.

     - watch [...] task ID

     Watchpoints can now be restricted to a specific Ada task.

     - maint set internal-error backtrace on|off
     - maint show internal-error backtrace
     - maint set internal-warning backtrace on|off
     - maint show internal-warning backtrace

     GDB can now print a backtrace of itself when it encounters either an
   internal-error, or an internal-warning.  This is on by default for
   internal-error and off by default for internal-warning.

     - set logging on|off

     Deprecated and replaced by "set logging enabled on|off".

     - set logging enabled on|off
     - show logging enabled

     These commands set or show whether logging is enabled or disabled.

     - exit

     You can now exit GDB by using the new command "exit", in addition to the
   existing "quit" command.

     - set debug threads on|off
     - show debug threads

     Print additional debug messages about thread creation and deletion.

     - set debug linux-nat on|off
     - show debug linux-nat

     These new commands replaced the old 'set debug lin-lwp' and 'show debug
   lin-lwp' respectively.  Turning this setting on prints debug messages
   relating to GDB's handling of native Linux inferiors.

     - maint flush source-cache

     Flush the contents of the source code cache.

     - maint set gnu-source-highlight enabled on|off
     - maint show gnu-source-highlight enabled

     Whether GDB should use the GNU Source Highlight library for adding
   styling to source code.  When off, the library will not be used, even when
   available.  When GNU Source Highlight isn't used, or can't add styling to
   a particular source file, then the Python Pygments library will be used
   instead.

     - set suppress-cli-notifications (on|off)
     - show suppress-cli-notifications

     This controls whether printing the notifications is suppressed for CLI.
   CLI notifications occur when you change the selected context (i.e., the
   current inferior, thread and/or the frame), or when the program being
   debugged stops (e.g., because of hitting a breakpoint, completing
   source-stepping, an interrupt, etc.).

     - set style disassembler enabled on|off
     - show style disassembler enabled

     If GDB is compiled with Python support, and the Python Pygments 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.

   * 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 as escaped hex, e.g.
   \x?? where '??' is replaces with the value of the non-printable character.

     - clone-inferior

     The clone-inferior command now ensures that the TTY, CMD and ARGS
   settings are copied from the original inferior to the new one. All
   modifications to the environment variables done using the 'set
   environment' or 'unset environment' commands are also copied to the new
   inferior.

     - set debug lin-lwp on|off
     - show debug lin-lwp

     These commands have been removed from GDB.  The new command 'set debug
   linux-nat' and 'show debug linux-nat' should be used instead.

     - info win

     This command now includes information about the width of the tui windows
   in its output.

   * 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.

   * Python API:

     ** New function gdb.add_history(), which takes a gdb.Value object and
      adds the value it represents to GDB's history list.  An integer, the
      index of the new item in the history list, is returned.

     ** New function gdb.history_count(), which returns the number of values
      in GDB's value history.

     ** New gdb.events.gdb_exiting event.  This event is called with a
      gdb.GdbExitingEvent object which has the read-only attribute
      'exit_code', which contains the value of the GDB exit code.  This event
      is triggered once GDB decides it is going to exit, but before GDB
      starts to clean up its internal state.

     ** New function gdb.architecture_names(), which returns a list
      containing all of the possible Architecture.name() values.  Each entry
      is a string.

     ** New function gdb.Architecture.integer_type(), which returns an
      integer type given a size and a signed-ness.

     ** New gdb.TargetConnection object type that represents a connection (as
      displayed by the 'info connections' command).  A sub-class,
      gdb.RemoteTargetConnection, is used to represent 'remote' and
      'extended-remote' connections.

     ** The gdb.Inferior type now has a 'connection' property which is an
      instance of gdb.TargetConnection, the connection used by this
      inferior.  This can be None if the inferior has no connection.

     ** New 'gdb.events.connection_removed' event registry, which emits a
      'gdb.ConnectionEvent' when a connection is removed from GDB. This event
      has a 'connection' property, a gdb.TargetConnection
        object for the connection being removed.

     ** New gdb.connections() function that returns a list of all currently
      active connections.

     ** New gdb.RemoteTargetConnection.send_packet(PACKET) method.  This is
      equivalent to the existing 'maint packet' CLI command; it allows a user
      specified packet to be sent to the remote target.

     ** New function gdb.host_charset(), returns a string, which is the name
      of the current host charset.

     ** New gdb.set_parameter(NAME, VALUE).  This sets the gdb parameter NAME
      to VALUE.

     ** New gdb.with_parameter(NAME, VALUE).  This returns a context manager
      that temporarily sets the gdb parameter NAME to VALUE, then resets it
      when the context is exited.

     ** The gdb.Value.format_string method now takes a 'styling' argument,
      which is a boolean.  When true, the returned string can include escape
      sequences to apply styling.  The styling will only be present if
      styling is otherwise turned on in GDB (see 'help set styling').  When
      false, which is the default if the argument is not given, then no
      styling is applied to the returned string.

     ** New read-only attribute gdb.InferiorThread.details, which is either a
      string, containing additional, target specific thread 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.

   Update libipt to v2.0.5.


Patch Instructions:

   To install this SUSE Recommended Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - openSUSE Leap 15.4:

      zypper in -t patch openSUSE-SLE-15.4-2022-4336=1

   - openSUSE Leap 15.3:

      zypper in -t patch openSUSE-SLE-15.3-2022-4336=1

   - SUSE Linux Enterprise Module for Development Tools 15-SP4:

      zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP4-2022-4336=1



Package List:

   - openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64):

      gdb-12.1-150400.15.6.1
      gdb-debuginfo-12.1-150400.15.6.1
      gdb-debugsource-12.1-150400.15.6.1
      gdb-testresults-12.1-150400.15.6.1
      gdbserver-12.1-150400.15.6.1
      gdbserver-debuginfo-12.1-150400.15.6.1
      libsource-highlight-devel-3.1.8-150000.3.2.1
      libsource-highlight4-3.1.8-150000.3.2.1
      libsource-highlight4-debuginfo-3.1.8-150000.3.2.1
      source-highlight-3.1.8-150000.3.2.1
      source-highlight-cgi-3.1.8-150000.3.2.1
      source-highlight-cgi-debuginfo-3.1.8-150000.3.2.1
      source-highlight-debuginfo-3.1.8-150000.3.2.1
      source-highlight-debugsource-3.1.8-150000.3.2.1

   - openSUSE Leap 15.4 (x86_64):

      libsource-highlight4-32bit-3.1.8-150000.3.2.1
      libsource-highlight4-32bit-debuginfo-3.1.8-150000.3.2.1

   - openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):

      libsource-highlight-devel-3.1.8-150000.3.2.1
      libsource-highlight4-3.1.8-150000.3.2.1
      libsource-highlight4-debuginfo-3.1.8-150000.3.2.1
      source-highlight-3.1.8-150000.3.2.1
      source-highlight-cgi-3.1.8-150000.3.2.1
      source-highlight-cgi-debuginfo-3.1.8-150000.3.2.1
      source-highlight-debuginfo-3.1.8-150000.3.2.1
      source-highlight-debugsource-3.1.8-150000.3.2.1

   - openSUSE Leap 15.3 (x86_64):

      libsource-highlight4-32bit-3.1.8-150000.3.2.1
      libsource-highlight4-32bit-debuginfo-3.1.8-150000.3.2.1

   - SUSE Linux Enterprise Module for Development Tools 15-SP4 (aarch64 ppc64le s390x x86_64):

      gdb-12.1-150400.15.6.1
      gdb-debuginfo-12.1-150400.15.6.1
      gdb-debugsource-12.1-150400.15.6.1
      gdbserver-12.1-150400.15.6.1
      gdbserver-debuginfo-12.1-150400.15.6.1
      libsource-highlight-devel-3.1.8-150000.3.2.1
      libsource-highlight4-3.1.8-150000.3.2.1
      libsource-highlight4-debuginfo-3.1.8-150000.3.2.1


References:




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