What has changed in GDB?
(Organized release by release)
-*** Changes since GDB 6.0:
+*** Changes since GDB 6.1:
+
+* New ``start'' command.
+
+This command runs the program until the begining of the main procedure.
+
+* Signal trampoline code overhauled
+
+Many generic problems with GDB's signal handling code have been fixed.
+These include: backtraces through non-contiguous stacks; recognition
+of sa_sigaction signal trampolines; backtrace from a NULL pointer
+call; backtrace through a signal trampoline; step into and out of
+signal handlers; and single-stepping in the signal trampoline.
+
+These fixes were tested on i386 GNU/Linux systems that include a 2.4
+kernel.
+
+* Cygwin support for DWARF 2 added.
+
+* Fixed build problem on IRIX 5
+
+Due to header problems with <sys/proc.h>, the file gdb/proc-api.c
+wasn't able to compile compile on an IRIX 5 system.
+
+* Added execute permission to gdb/gdbserver/configure
+
+The shell script gdb/testsuite/gdb.stabs/configure lacked execute
+permission. This bug would cause configure to fail on a number of
+systems (Solaris, IRIX). Ref: server/519.
+
+* New native configurations
+
+OpenBSD/m68k m68*-*-openbsd*
+OpenBSD/m88k m88*-*-openbsd*
+OpenBSD/powerpc powerpc-*-openbsd*
+NetBSD/vax vax-*-netbsd*
+OpenBSD/vax vax-*-openbsd*
+
+* REMOVED configurations and files
+
+Sun 3, running SunOS 3 m68*-*-sunos3*
+Sun 3, running SunOS 4 m68*-*-sunos4*
+Sun 2, running SunOS 3 m68000-*-sunos3*
+Sun 2, running SunOS 4 m68000-*-sunos4*
+Motorola 680x0 running LynxOS m68*-*-lynxos*
+AT&T 3b1/Unix pc m68*-att-*
+Bull DPX2 (68k, System V release 3) m68*-bull-sysv*
+decstation mips-dec-* mips-little-*
+riscos mips-*-riscos* mips-*-sysv*
+sonymips mips-sony-*
+sysv mips*-*-sysv4* (IRIX 5/6 not included)
+
+*** Changes in GDB 6.1:
+
+* Removed --with-mmalloc
+
+Support for the mmalloc memory manager has been removed, as it
+conflicted with the internal gdb byte cache.
+
+* Changes in AMD64 configurations
+
+The AMD64 target now includes the %cs and %ss registers. As a result
+the AMD64 remote protocol has changed; this affects the floating-point
+and SSE registers. If you rely on those registers for your debugging,
+you should upgrade gdbserver on the remote side.
+
+* Revised SPARC target
+
+The SPARC target has been completely revised, incorporating the
+FreeBSD/sparc64 support that was added for GDB 6.0. As a result
+support for LynxOS and SunOS 4 has been dropped. Calling functions
+from within GDB on operating systems with a non-executable stack
+(Solaris, OpenBSD) now works.
+
+* New C++ demangler
+
+GDB has a new C++ demangler which does a better job on the mangled
+names generated by current versions of g++. It also runs faster, so
+with this and other changes gdb should now start faster on large C++
+programs.
+
+* DWARF 2 Location Expressions
+
+GDB support for location expressions has been extended to support function
+arguments and frame bases. Older versions of GDB could crash when they
+encountered these.
+
+* C++ nested types and namespaces
+
+GDB's support for nested types and namespaces in C++ has been
+improved, especially if you use the DWARF 2 debugging format. (This
+is the default for recent versions of GCC on most platforms.)
+Specifically, if you have a class "Inner" defined within a class or
+namespace "Outer", then GDB realizes that the class's name is
+"Outer::Inner", not simply "Inner". This should greatly reduce the
+frequency of complaints about not finding RTTI symbols. In addition,
+if you are stopped at inside of a function defined within a namespace,
+GDB modifies its name lookup accordingly.
+
+* New native configurations
+
+NetBSD/amd64 x86_64-*-netbsd*
+OpenBSD/amd64 x86_64-*-openbsd*
+OpenBSD/alpha alpha*-*-openbsd*
+OpenBSD/sparc sparc-*-openbsd*
+OpenBSD/sparc64 sparc64-*-openbsd*
+
+* New debugging protocols
+
+M32R with SDI protocol m32r-*-elf*
+
+* "set prompt-escape-char" command deleted.
+
+The command "set prompt-escape-char" has been deleted. This command,
+and its very obscure effet on GDB's prompt, was never documented,
+tested, nor mentioned in the NEWS file.
+
+* OBSOLETE configurations and files
+
+Configurations that have been declared obsolete in this release have
+been commented out. Unless there is activity to revive these
+configurations, the next release of GDB will have their sources
+permanently REMOVED.
+
+Sun 3, running SunOS 3 m68*-*-sunos3*
+Sun 3, running SunOS 4 m68*-*-sunos4*
+Sun 2, running SunOS 3 m68000-*-sunos3*
+Sun 2, running SunOS 4 m68000-*-sunos4*
+Motorola 680x0 running LynxOS m68*-*-lynxos*
+AT&T 3b1/Unix pc m68*-att-*
+Bull DPX2 (68k, System V release 3) m68*-bull-sysv*
+decstation mips-dec-* mips-little-*
+riscos mips-*-riscos* mips-*-sysv*
+sonymips mips-sony-*
+sysv mips*-*-sysv4* (IRIX 5/6 not included)
+
+* REMOVED configurations and files
+
+SGI Irix-4.x mips-sgi-irix4 or iris4
+SGI Iris (MIPS) running Irix V3: mips-sgi-irix or iris
+Z8000 simulator z8k-zilog-none or z8ksim
+Matsushita MN10200 w/simulator mn10200-*-*
+H8/500 simulator h8500-hitachi-hms or h8500hms
+HP/PA running BSD hppa*-*-bsd*
+HP/PA running OSF/1 hppa*-*-osf*
+HP/PA Pro target hppa*-*-pro*
+PMAX (MIPS) running Mach 3.0 mips*-*-mach3*
+386BSD i[3456]86-*-bsd*
+Sequent family i[3456]86-sequent-sysv4*
+ i[3456]86-sequent-sysv*
+ i[3456]86-sequent-bsd*
+SPARC running LynxOS sparc-*-lynxos*
+SPARC running SunOS 4 sparc-*-sunos4*
+Tsqware Sparclet sparclet-*-*
+Fujitsu SPARClite sparclite-fujitsu-none or sparclite
*** Changes in GDB 6.0:
+* Objective-C
+
+Support for debugging the Objective-C programming language has been
+integrated into GDB.
+
+* New backtrace mechanism (includes DWARF 2 Call Frame Information).
+
+DWARF 2's Call Frame Information makes available compiler generated
+information that more exactly describes the program's run-time stack.
+By using this information, GDB is able to provide more robust stack
+backtraces.
+
+The i386, amd64 (nee, x86-64), Alpha, m68hc11, ia64, and m32r targets
+have been updated to use a new backtrace mechanism which includes
+DWARF 2 CFI support.
+
+* Hosted file I/O.
+
+GDB's remote protocol has been extended to include support for hosted
+file I/O (where the remote target uses GDB's file system). See GDB's
+remote protocol documentation for details.
+
+* All targets using the new architecture framework.
+
+All of GDB's targets have been updated to use the new internal
+architecture framework. The way is now open for future GDB releases
+to include cross-architecture native debugging support (i386 on amd64,
+ppc32 on ppc64).
+
+* GNU/Linux's Thread Local Storage (TLS)
+
+GDB now includes support for for the GNU/Linux implementation of
+per-thread variables.
+
+* GNU/Linux's Native POSIX Thread Library (NPTL)
+
+GDB's thread code has been updated to work with either the new
+GNU/Linux NPTL thread library or the older "LinuxThreads" library.
+
+* Separate debug info.
+
+GDB, in conjunction with BINUTILS, now supports a mechanism for
+automatically loading debug information from a separate file. Instead
+of shipping full debug and non-debug versions of system libraries,
+system integrators can now instead ship just the stripped libraries
+and optional debug files.
+
+* DWARF 2 Location Expressions
+
+DWARF 2 Location Expressions allow the compiler to more completely
+describe the location of variables (even in optimized code) to the
+debugger.
+
+GDB now includes preliminary support for location expressions (support
+for DW_OP_piece is still missing).
+
+* Java
+
+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".
+
+* GNU/Linux support for fork, vfork, and exec.
+
+The "catch fork", "catch exec", "catch vfork", and "set follow-fork-mode"
+commands are now implemented for GNU/Linux. They require a 2.5.x or later
+kernel.
+
* GDB supports logging output to a file
There are two new commands, "set logging" and "show logging", which can be
Fix for gdb/702: a -var-assign that updates the value now shows up
in a subsequent -var-update.
+* New native configurations.
+
+FreeBSD/amd64 x86_64-*-freebsd*
+
* Multi-arched targets.
HP/PA HPUX11 hppa*-*-hpux*
-Mitsubishi M32R/D w/simulator m32r-*-elf*
+Renesas M32R/D w/simulator m32r-*-elf*
* OBSOLETE configurations and files
projects / deliverable / binutils-gdb.git / blobdiff