X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gdb%2FNEWS;h=53d1c6e2486dfb7af64ff2419bef52e42daacdd2;hb=b4be1b0648608a2578bbed39841c8ee411773edd;hp=f27503134543c804c247655f0f3c2dad1e4f4567;hpb=52a187f8e78eeaefa38bdaff04aae1fd9a69d788;p=external%2Fbinutils.git diff --git a/gdb/NEWS b/gdb/NEWS index f275031..53d1c6e 100644 --- a/gdb/NEWS +++ b/gdb/NEWS @@ -1,7 +1,21 @@ What has changed in GDB? (Organized release by release) -*** Changes since GDB 8.2 +*** Changes since GDB 8.3 + +*** Changes in GDB 8.3 + +* GDB and GDBserver now support access to additional registers on + PowerPC GNU/Linux targets: PPR, DSCR, TAR, EBB/PMU registers, and + HTM registers. + +* GDB now has experimental support for the compilation and injection of + C++ source code into the inferior. This beta release does not include + support for several language features, such as templates, constructors, + and operators. + + This feature requires GCC 7.1 or higher built with libcp1.so + (the C++ plug-in). * GDB and GDBserver now support IPv6 connections. IPv6 addresses can be passed using the '[ADDRESS]:PORT' notation, or the regular @@ -10,8 +24,50 @@ * DWARF index cache: GDB can now automatically save indices of DWARF symbols on disk to speed up further loading of the same binaries. +* Ada task switching is now supported on aarch64-elf targets when + debugging a program using the Ravenscar Profile. For more information, + see the "Tasking Support when using the Ravenscar Profile" section + in the GDB user manual. + +* GDB in batch mode now exits with status 1 if the last command to be + executed failed. + +* The RISC-V target now supports target descriptions. + +* System call catchpoints now support system call aliases on FreeBSD. + When the ABI of a system call changes in FreeBSD, this is + implemented by leaving a compatibility system call using the old ABI + at the existing number and allocating a new system call number for + the new ABI. For example, FreeBSD 12 altered the layout of 'struct + kevent' used by the 'kevent' system call. As a result, FreeBSD 12 + kernels ship with both 'kevent' and 'freebsd11_kevent' system calls. + The 'freebsd11_kevent' system call is assigned an alias of 'kevent' + so that a system call catchpoint for the 'kevent' system call will + catch invocations of both the 'kevent' and 'freebsd11_kevent' + binaries. This ensures that 'kevent' system calls are caught for + binaries using either the old or new ABIs. + +* Terminal styling is now available for the CLI and the TUI. GNU + Source Highlight can additionally be used to provide styling of + source code snippets. See the "set style" commands, below, for more + information. + +* Removed support for old demangling styles arm, edg, gnu, hp and + lucid. + * New commands +set debug compile-cplus-types +show debug compile-cplus-types + Control the display of debug output about type conversion in the + C++ compile feature. Commands have no effect while compiliong + for other languages. + +set debug skip +show debug skip + Control whether debug output about files/functions skipping is + displayed. + frame apply [all | COUNT | -COUNT | level LEVEL...] [FLAG]... COMMAND Apply a command to some frames. FLAG arguments allow to control what output to produce and how to handle @@ -34,20 +90,150 @@ maint set dwarf unwinders (on|off) maint show dwarf unwinders Control whether DWARF unwinders can be used. +info proc files + Display a list of open files for a process. + * Changed commands +Changes to the "frame", "select-frame", and "info frame" CLI commands. + These commands all now take a frame specification which + is either a frame level, or one of the keywords 'level', 'address', + 'function', or 'view' followed by a parameter. Selecting a frame by + address, or viewing a frame outside the current backtrace now + requires the use of a keyword. Selecting a frame by level is + unchanged. The MI comment "-stack-select-frame" is unchanged. + +target remote FILENAME +target extended-remote FILENAME + If FILENAME is a Unix domain socket, GDB will attempt to connect + to this socket instead of opening FILENAME as a character device. + +info args [-q] [-t TYPEREGEXP] [NAMEREGEXP] +info functions [-q] [-t TYPEREGEXP] [NAMEREGEXP] +info locals [-q] [-t TYPEREGEXP] [NAMEREGEXP] +info variables [-q] [-t TYPEREGEXP] [NAMEREGEXP] + These commands can now print only the searched entities + matching the provided regexp(s), giving a condition + on the entity names or entity types. The flag -q disables + printing headers or informations messages. + +info functions +info types +info variables +rbreak + These commands now determine the syntax for the shown entities + according to the language chosen by `set language'. In particular, + `set language auto' means to automatically choose the language of + the shown entities. + thread apply [all | COUNT | -COUNT] [FLAG]... COMMAND The 'thread apply' command accepts new FLAG arguments. FLAG arguments allow to control what output to produce and how to handle errors raised when applying COMMAND to a thread. +set tui tab-width NCHARS +show tui tab-width NCHARS + "set tui tab-width" replaces the "tabset" command, which has been deprecated. + +set style enabled [on|off] +show style enabled + Enable or disable terminal styling. Styling is enabled by default + on most hosts, but disabled by default when in batch mode. + +set style filename foreground COLOR +set style filename background COLOR +set style filename intensity VALUE + Control the styling of file names. + +set style function foreground COLOR +set style function background COLOR +set style function intensity VALUE + Control the styling of function names. + +set style variable foreground COLOR +set style variable background COLOR +set style variable intensity VALUE + Control the styling of variable names. + +set style address foreground COLOR +set style address background COLOR +set style address intensity VALUE + Control the styling of addresses. + +* MI changes + + ** The default version of the MI interpreter is now 3 (-i=mi3). + + ** The '-data-disassemble' MI command now accepts an '-a' option to + disassemble the whole function surrounding the given program + counter value or function name. Support for this feature can be + verified by using the "-list-features" command, which should + contain "data-disassemble-a-option". + + ** Command responses and notifications that include a frame now include + the frame's architecture in a new "arch" attribute. + + ** The output of information about multi-location breakpoints (which is + syntactically incorrect in MI 2) has changed in MI 3. This affects + the following commands and events: + + - -break-insert + - -break-info + - =breakpoint-created + - =breakpoint-modified + + The -fix-multi-location-breakpoint-output command can be used to enable + this behavior with previous MI versions. + * New native configurations GNU/Linux/RISC-V riscv*-*-linux* +FreeBSD/riscv riscv*-*-freebsd* * New targets GNU/Linux/RISC-V riscv*-*-linux* +CSKY ELF csky*-*-elf +CSKY GNU/LINUX csky*-*-linux +FreeBSD/riscv riscv*-*-freebsd* +NXP S12Z s12z-*-elf +GNU/Linux/OpenRISC or1k*-*-linux* + +* Removed targets + +GDB no longer supports native debugging on versions of MS-Windows +before Windows XP. + +* Python API + + ** GDB no longer supports Python versions less than 2.6. + + ** The gdb.Inferior type has a new 'progspace' property, which is the program + space associated to that inferior. + + ** The gdb.Progspace type has a new 'objfiles' method, which returns the list + of objfiles associated to that program space. + + ** gdb.SYMBOL_LOC_COMMON_BLOCK, gdb.SYMBOL_MODULE_DOMAIN, and + gdb.SYMBOL_COMMON_BLOCK_DOMAIN were added to reflect changes to + the gdb core. + + ** gdb.SYMBOL_VARIABLES_DOMAIN, gdb.SYMBOL_FUNCTIONS_DOMAIN, and + gdb.SYMBOL_TYPES_DOMAIN are now deprecated. These were never + correct and did not work properly. + + ** The gdb.Value type has a new constructor, which is used to construct a + gdb.Value from a Python buffer object and a gdb.Type. + +* Configure changes + +--enable-ubsan + + Enable or disable the undefined behavior sanitizer. This is + disabled by default, but passing --enable-ubsan=yes or + --enable-ubsan=auto to configure will enable it. Enabling this can + cause a performance penalty. The undefined behavior sanitizer was + first introduced in GCC 4.9. *** Changes in GDB 8.2 @@ -82,6 +268,9 @@ GNU/Linux/RISC-V riscv*-*-linux* * C expressions can now use _Alignof, and C++ expressions can now use alignof. +* Support for SVE on AArch64 Linux. Note that GDB does not detect changes to + the vector length while the process is running. + * New commands set debug fbsd-nat