diff options
Diffstat (limited to 'gdb/NEWS')
| -rw-r--r-- | gdb/NEWS | 114 |
1 files changed, 108 insertions, 6 deletions
@@ -35,18 +35,18 @@ a -h or --help option, which prints each options and a brief description. -* On systems that support linkage namespaces, the output of the command +* On systems that support linker namespaces, the output of the command "info sharedlibraries" may add one more column, NS, which identifies the namespace into which the library was loaded, if more than one namespace is active. * New built-in convenience variables $_active_linker_namespaces and - $_current_linker_namespace. These show the number of active linkage + $_linker_namespace. These show the number of active linker namespaces, and the namespace to which the current location belongs to. - In systems that don't support linkage namespaces, these always return 1 - and [[0]] respectively. + In systems that don't support linker namespaces, these always return + the integers 1 and 0 respectively. - * Add record full support for rv64gc architectures +* Add record full support for rv64gc architectures * New commands @@ -56,12 +56,34 @@ maintenance check psymtabs maintenance check symtabs Renamed from maintenance check-symtabs +maintenance canonicalize + Show the canonical form of a C++ name. + +maintenance set console-translation-mode <binary|text> +maintenance show console-translation-mode + Controls the translation mode of GDB stdout/stderr. MS-Windows only. In + binary mode, no translation is done. In text mode, a Line Feed is + translated into a Carriage Return-Line Feed combination. + set riscv numeric-register-names on|off show riscv numeric-register-names Controls whether GDB refers to risc-v registers by their numeric names (e.g 'x1') or their abi names (e.g. 'ra'). Defaults to 'off', matching the old behaviour (abi names). +set style emoji on|off|auto +show style emoji + Controls whether GDB can display emoji. The default is "auto", + which means emoji will be displayed in some situations when + the host charset is UTF-8. + +set style warning-prefix STRING +set style error-prefix STRING + These commands control the prefix that is printed before warnings + and errors, respectively. This functionality is intended for use + with emoji display, and so the prefixes are only displayed if emoji + styling is enabled. + info linker-namespaces info linker-namespaces [[N]] Print information about the given linker namespace (identified as N), @@ -74,8 +96,42 @@ info sharedlibrary command are now for the full memory range allocated to the shared library. +info threads [-gid] [-stopped] [-running] [ID]... + If no threads match the given ID(s) or filter options, GDB now prints + + No threads matched. + + without printing the provided arguments. The newly added '-stopped' + option makes GDB list the stopped threads only. Similarly, + '-running' makes GDB list the running threads only. If both options + are given together, both stopped and running threads are listed. + These new flags can be useful to get a reduced list when there is a + large number of threads. + +* GDB-internal Thread Local Storage (TLS) support + + ** Linux targets for the x86_64, aarch64, ppc64, s390x, and riscv + architectures now have GDB-internal support for TLS address + lookup in addition to that traditionally provided by the + libthread_db library. This internal support works for programs + linked against either the GLIBC or MUSL C libraries. For + programs linked against MUSL, this new internal support provides + new debug functionality, allowing access to TLS variables, due to + the fact that MUSL does not implement the libthread_db library. + Internal TLS support is also useful in cross-debugging + situations, debugging statically linked binaries, and debugging + programs linked against GLIBC 2.33 and earlier, but which are not + linked against libpthread. + + ** The command 'maint set force-internal-tls-address-lookup on' may + be used to force the internal TLS lookup mechanisms to be used. + Otherwise, TLS lookup via libthread_db will still be preferred, + when available. + * Python API + ** GDB no longer supports Python versions less than 3.4. + ** New class gdb.Color for dealing with colors. ** New constant gdb.PARAM_COLOR represents color type of a @@ -92,6 +148,23 @@ info sharedlibrary when output is going to standard output, and False when output is going to a string. + ** Setting the documentation string (__doc__) of a gdb.Parameter + sub-class to the empty string, means GDB will only display the + set_doc or show_doc strings in the set/show help output. + + ** New gdb.ParameterPrefix class. This can be used to create 'set' + and 'show' gdb.Command prefixes, suitable for use with new + gdb.Parameters. + + ** Prefix commands (gdb.Command sub-classes) that don't have an + invoke method will now behave like builtin prefix commands when + invoked without a sub-command name. This means printing the help + text for all sub-commands, unless the prefix command is a 'show' + command, in which case the value of all sub-commands is printed. + + ** New gdb.warning() function that takes a string and prints it as a + warning, with GDB's standard 'warning' prefix. + * Guile API ** New type <gdb:color> for dealing with colors. @@ -99,6 +172,17 @@ info sharedlibrary ** New constant PARAM_COLOR represents color type of a value of a <gdb:parameter> object. Parameter's value is <gdb::color> instance. + ** Eliding the #:doc string from make-parameter now means that GDB + will use a default documentation string. Setting #:doc to the + empty string for make-parameter means GDB will only display the + #:set_doc or #:show_doc strings in the set/show help output. + + ** Prefix commands (using make-command) that don't have a #:invoke + property will now behave like builtin prefix commands when + invoked without a sub-command name. This means printing the help + text for all sub-commands, unless the prefix command is a 'show' + command, in which case the value of all sub-commands is printed. + * New remote packets binary-upload in qSupported reply @@ -107,6 +191,11 @@ binary-upload in qSupported reply stub doesn't report this feature supported, then GDB will not use the 'x' packet. +vFile:lstat + Return information about files on the remote system. Like + vFile:stat but if the filename is a symbolic link, return + information about the link itself, the file the link refers to. + * Changed remote packets qXfer:threads:read @@ -115,6 +204,11 @@ qXfer:threads:read should print as the target ID of the thread, for example in the "info threads" command or when switching to the thread. +vFile:stat + Previously, gdbserver incorrectly implemented this packet using + lstat rather than stat. This has now been corrected. The + documentation has also been clarified. + * MI changes ** The =library-unloaded event now includes the 'ranges' field, which @@ -134,6 +228,14 @@ qXfer:threads:read subsystem to be disabled at configure time, in the form of --disable-gdb-compile. +* A new configure option was added, allowing support for DWARF debug + information to be disabled at configure time. The flag is + --disable-gdb-dwarf-support. + +* A new configure option was added, allowing support for mdebug/ecoff + debug information to be disabled at configure time. The flag to do + that is --disable-gdb-mdebug-support. + *** Changes in GDB 16 * Support for Nios II targets has been removed as this architecture @@ -7509,7 +7611,7 @@ for DW_OP_piece is still missing). A number of long standing bugs that caused GDB to die while starting a Java application have been fixed. GDB's Java support is now -considered "useable". +considered "usable". * GNU/Linux support for fork, vfork, and exec. |