MESSAGE
| DATE | 2023-05-27 |
| FROM | Joel Brobecker
|
| SUBJECT | Subject: [Hangout - NYLXS] GDB 13.2 released!
|
GDB 13.2 released!
Release 13.2 of GDB, the GNU Debugger, is now available. GDB is
a source-level debugger for Ada, C, C++, Fortran, Go, Rust, and many
other languages. GDB can target (i.e., debug programs running on)
more than a dozen different processor architectures, and GDB itself
can run on most popular GNU/Linux, Unix and Microsoft Windows variants.
GDB is free (libre) software.
You can download GDB from the GNU HTTPS server in the directory:
https://ftp.gnu.org/gnu/gdb/?C=M;O=D
The vital stats:
Size sha256sum Name
23MiB fd5bebb7be1833abdb6e023c2f498a354498281df9d05523d8915babeb893f0a gdb-13.2.tar.xz
39MiB 7ead13d9e19fa0c57bb19104e1a5f67eefa9fc79f2e6360de491e8fddeda1e30 gdb-13.2.tar.gz
There is a web page for GDB at:
https://www.gnu.org/software/gdb/
That page includes information about GDB mailing lists (an announcement
mailing list, developers discussion lists, etc.), details on how to
access GDB's source repository, locations for development snapshots,
preformatted documentation, and links to related information around
the net. We will put errata notes and host-specific tips for this release
on-line as any problems come up. All mailing lists archives are also
browsable via the web.
GDB 13.2 brings the following fixes and enhancements over GDB 13.1:
* PR testsuite/30158 (rustc testsuite fails with 13.1, apparently worked before with trunk 20230114 on i686-linux-gnu and powerpc64le-linux-gnu)
* PR gdb/30214 (GDB 13.1 does not compile on FreeBSD 13.1)
* PR gdb/30240 ((linux/aarch) thread.c:86: internal-error: inferior_thread: Assertion `current_thread_ != nullptr' failed)
* PR gdb/30249 ([13 regression] hookpost-extended-remote will not work)
* PR exp/30271 (Addresses of static thread_local fields are badly calculated sometimes)
* PR symtab/30357 (Segmentation fault for the 'start' command)
* PR symtab/30369 ([gdb/symtab] False match issue in skip_prologue_using_linetable)
* PR gdb/30423 (Build failures with clang 16)
* PR build/30450 (Build failure (linux-low.cc:5393:45: error: expected ':' before ')' token) with musl-1.2.4)
GDB 13.1 includes the following changes and enhancements:
* Support for the following new targets has been added in both
GDB and GDBserver:
** GNU/Linux/LoongArch (gdbserver) loongarch*-*-linux*
** GNU/Linux/CSKY (gdbserver) csky*-*linux*
* The Windows native target now supports target async.
* FreeBSD:
** Arm and AArch64: Support for Thread Local Storage (TLS) variables
** Hardware watchpoint support on AArch64 FreeBSD
* Floating-point support has now been added on LoongArch GNU/Linux.
* New commands:
** set print nibbles [on|off]
show print nibbles
This controls whether the 'print/t' command will display binary values
in groups of four bits, known as "nibbles". The default is 'off'.
** Various styling-related commands. See the gdb/NEWS file for more
details (see link at the bottom).
** Various maintenance commands. These are normally aimed at GDB
experts or developers. See the gdb/NEWS file for more details
(see link at the bottom).
* Python API improvements:
** New Python API for instruction disassembly.
The new attribute 'locations' of gdb.Breakpoint returns a list of
gdb.BreakpointLocation objects specifying the locations where the
breakpoint is inserted into the debuggee.
** New Python type gdb.BreakpointLocation.
** New function gdb.format_address(ADDRESS, PROGSPACE, ARCHITECTURE)
that formats ADDRESS as 'address '
** New function gdb.current_language that returns the name of the
current language. Unlike gdb.parameter('language'), this will
never return 'auto'.
** New function gdb.print_options that returns a dictionary of the
prevailing print options, in the form accepted by gdb.Value.format_string.
** New method gdb.Frame.language that returns the name of the
frame's language.
** gdb.Value.format_string now uses the format provided by 'print',
if it is called during a 'print' or other similar operation.
** gdb.Value.format_string now accepts the 'summary' keyword. This
can be used to request a shorter representation of a value, the
way that 'set print frame-arguments scalars' does.
** The gdb.register_window_type method now restricts the set of
acceptable window names. The first character of a window's name
must start with a character in the set [a-zA-Z], every subsequent
character of a window's name must be in the set [-_.a-zA-Z0-9].
* GDB/MI changes:
** MI version 1 is deprecated, and will be removed in GDB 14.
** The async record stating the stopped reason 'breakpoint-hit' now
contains an optional field locno.
* Miscellaneous improvements:
** gdb now supports zstd compressed debug sections (ELFCOMPRESS_ZSTD) for ELF.
** New convenience variable $_inferior_thread_count contains the number
of live threads in the current inferior.
** New convenience variables $_hit_bpnum and $_hit_locno, set to
the breakpoint number and the breakpoint location number of
the breakpoint last hit.
** The "info breakpoints" now displays enabled breakpoint locations
of disabled breakpoints as in the "y-" state.
** The format of 'disassemble /r' and 'record instruction-history /r'
has changed to match the layout of GNU objdump when disassembling.
A new format "/b" has been introduce to provide the old behavior
of "/r".
** The TUI no longer styles the source and assembly code highlighted
by the current position indicator by default. You can however
re-enable styling using the new "set style tui-current-position"
command.
** It is now possible to use the "document" command to document
user-defined commands.
** Support for memory tag data for AArch64 MTE.
* Support Removal notices:
** DBX mode has been removed.
** Support for building against Python version 2 has been removed.
It is now only possible to build GDB against Python 3.
** Support for the following commands has been removed:
set debug aix-solib on|off
show debug aix-solib
set debug solib-frv on|off
show debug solib-frv
Use the "set/show debug solib" commands instead.
For a complete list and more details on each item, please see the gdb/NEWS
file, available at:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob_plain;f=gdb/NEWS;hb=gdb-13.2-release
--
Joel Brobecker
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Hangout-at-nylxs.com
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