#8412: gdb-7.12
-------------------------+-------------------------
Reporter: renodr | Owner: blfs-book@…
Type: enhancement | Status: new
Priority: normal | Milestone: 7.11
Component: BOOK | Version: SVN
Severity: normal | Keywords:
-------------------------+-------------------------
New minor version
{{{
*** Changes in GDB 7.12
* GDB and GDBserver now build with a C++ compiler by default.
The --enable-build-with-cxx configure option is now enabled by
default. One must now explicitly configure with
--disable-build-with-cxx in order to build with a C compiler. This
option will be removed in a future release.
* GDBserver now supports recording btrace without maintaining an active
GDB connection.
* GDB now supports a negative repeat count in the 'x' command to examine
memory backward from the given address. For example:
(gdb) bt
#0 Func1 (n=42, p=0x40061c "hogehoge") at main.cpp:4
#1 0x400580 in main (argc=1, argv=0x7fffffffe5c8) at main.cpp:8
(gdb) x/-5i 0x0000000000400580
0x40056a <main(int, char**)+8>: mov %edi,-0x4(%rbp)
0x40056d <main(int, char**)+11>: mov %rsi,-0x10(%rbp)
0x400571 <main(int, char**)+15>: mov $0x40061c,%esi
0x400576 <main(int, char**)+20>: mov $0x2a,%edi
0x40057b <main(int, char**)+25>:
callq 0x400536 <Func1(int, char const*)>
* Fortran: Support structures with fields of dynamic types and
arrays of dynamic types.
* GDB now supports multibit bitfields and enums in target register
descriptions.
* New Python-based convenience function $_as_string(val), which returns
the textual representation of a value. This function is especially
useful to obtain the text label of an enum value.
* Intel MPX bound violation handling.
Segmentation faults caused by a Intel MPX boundary violation
now display the kind of violation (upper or lower), the memory
address accessed and the memory bounds, along with the usual
signal received and code location.
For example:
Program received signal SIGSEGV, Segmentation fault
Upper bound violation while accessing address 0x7fffffffc3b3
Bounds: [lower = 0x7fffffffc390, upper = 0x7fffffffc3a3]
0x0000000000400d7c in upper () at i386-mpx-sigsegv.c:68
* Rust language support.
GDB now supports debugging programs written in the Rust programming
language. See https://www.rust-lang.org/ for more information about
Rust.
* Support for running interpreters on specified input/output devices
GDB now supports a new mechanism that allows frontends to provide
fully featured GDB console views, as a better alternative to
building such views on top of the "-interpreter-exec console"
command. See the new "new-ui" command below. With that command,
frontends can now start GDB in the traditional command-line mode
running in an embedded terminal emulator widget, and create a
separate MI interpreter running on a specified i/o device. In this
way, GDB handles line editing, history, tab completion, etc. in the
console all by itself, and the GUI uses the separate MI interpreter
for its own control and synchronization, invisible to the command
line.
* The "catch syscall" command catches groups of related syscalls.
The "catch syscall" command now supports catching a group of related
syscalls using the 'group:' or 'g:' prefix.
* New commands
skip -file file
skip -gfile file-glob-pattern
skip -function function
skip -rfunction regular-expression
A generalized form of the skip command, with new support for
glob-style file names and regular expressions for function names.
Additionally, a file spec and a function spec may now be combined.
maint info line-table REGEXP
Display the contents of GDB's internal line table data struture.
maint selftest
Run any GDB unit tests that were compiled in.
new-ui INTERP TTY
Start a new user interface instance running INTERP as interpreter,
using the TTY file for input/output.
* Python Scripting
** gdb.Breakpoint objects have a new attribute "pending", which
indicates whether the breakpoint is pending.
** Three new breakpoint-related events have been added:
gdb.breakpoint_created, gdb.breakpoint_modified, and
gdb.breakpoint_deleted.
signal-event EVENTID
Signal ("set") the given MS-Windows event object. This is used in
conjunction with the Windows JIT debugging (AeDebug) support, where
the OS suspends a crashing process until a debugger can attach to
it. Resuming the crashing process, in order to debug it, is done by
signalling an event.
* Support for tracepoints and fast tracepoints on s390-linux and s390x-
linux
was added in GDBserver, including JIT compiling fast tracepoint's
conditional expression bytecode into native code.
* Support for various remote target protocols and ROM monitors has
been removed:
target m32rsdi Remote M32R debugging over SDI
target mips MIPS remote debugging protocol
target pmon PMON ROM monitor
target ddb NEC's DDB variant of PMON for Vr4300
target rockhopper NEC RockHopper variant of PMON
target lsi LSI variant of PMO
* Support for tracepoints and fast tracepoints on powerpc-linux,
powerpc64-linux, and powerpc64le-linux was added in GDBserver,
including JIT compiling fast tracepoint's conditional expression
bytecode into native code.
* MI async record =record-started now includes the method and format used
for
recording. For example:
=record-started,thread-group="i1",method="btrace",format="bts"
* MI async record =thread-selected now includes the frame field. For
example:
=thread-selected,id="3",frame={level="0",addr="0x00000000004007c0"}
* New targets
Andes NDS32 nds32*-*-elf
}}}
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Ticket URL: <http://wiki.linuxfromscratch.org/blfs/ticket/8412>
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