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[ANNOUNCEMENT] Upcoming removals from GDB
- From: Daniel Jacobowitz <drow at false dot org>
- To: gdb at sourceware dot org
- Date: Mon, 12 Feb 2007 14:49:41 -0500
- Subject: [ANNOUNCEMENT] Upcoming removals from GDB
- Reply-to: gdb at sourceware dot org
This is a list of previously supported platforms and features that we
are planning to remove from the next release of GDB. If you are using
recent versions of GDB with any of these, and want support to remain,
please send mail to the email@example.com mailing list explaining
which -- no promises, but we're trying not to remove things that
still work and are still in use.
I plan to remove the listed items within the next month. They can be
restored from CVS history if necessary after that date.
Native and cross targets which will be removed:
But a new version of ARM WinCE support may be contributed
This does not affect HP/UX, hppa*-*-hpux*.
Source files which will be removed (along with my research notes):
The ABug ROM Monitor target. Only enabled for embedded m68k
These are only used for the rs6000-lynxos target. I'm pretty
much positive that no one has built a recent GDB for LynxOS.
Like abug-rom.c, another embedded monitor for m68k.
This was marked obsolete 2004-11-01; it's time for it to go.
DWARF 1. GCC removed support for generating this format
several years ago.
Support for the HP aCC C++ compiler, on PA. HP-UX for Itanium
doesn't use this; GCC for hppa-hpux doesn't use it either. See
Support for symbolic debug info for the HP compilers on HP-UX.
This is the equivalent of dwarf2read, not the equivalent of
elfread; removing it won't interfere with non-symbolic
debugging or with debugging SOM executables produced by the
GNU tools. I raised the question of removing this support on
the GDB mailing list early in 2006 and there was general
support. The only people who spoke up saying they used HP's
compilers on HP-UX said that they use HP's fork of GDB
there anyway (WDB).
This file is used for i86-*-sco* and for
i86-*-sysv4* and for i86-*-unixware* (but not
unixware2*). I haven't heard of anyone using GDB on any of
these configurations in a long time.
Again, only used on rs6000-lynxos.
Support for using .pdr information to backtrace. Andrew
pulled this code out of mips-tdep in 2004 and only linked it
in for mips-elf; mips-linux hasn't missed it. If you want
to improve mips-elf backtraces then finish hooking it up to
the dwarf2 unwinder instead of messing with this.
ECOFF support related to, I think, the same platforms as used
mdebugread.c. Looks like alpha-osf1 uses this. I know that
ECOFF support for MIPS is pretty much unused now; some targets
need images converted to ECOFF for loading a bootloader or
kernel, but the actual work is all strictly ELF. Binutils has
discussed dropping ECOFF support for MIPS several times and
no one has spoken in its defense lately.
We already removed most support for NLM files (NetWare). This
was left behind.
This claims to be Macraigor Wiggler support. But it only opens
a serial device; the things Macraigor sells nowadays are either
parallel or USB. In the archives I see several people trying
to use this, but no one succeeding.
Note to self: be careful removing this! The common "remotetimeout"
command appears to come from ocd.c rather than remote.c.
"Remote debugging interface for Renesas E7000 ICE".
I found a sad looking one on ebay, but that's the only thing
I could find from this decade.
"Remote debugging interface for EST-300 ICE". I couldn't
find even that much life.
An on-board ROM monitor for Renesas boards. No signs of life.
"Remote debugging interface for Tandem ST2000 phone switch"
GDB is now the source of every google hit I checked for this
I think that all the code in this file is actually dead.
I had a patch to remove it at some point but forgot about it.
"Remote target glue for the ROM68K ROM monitor"
I found only one reference that wasn't to GDB or dejagnu.
"Scheme/Guile language support" it says. What does this
actually support? It looks like it talks to the internal
representation of some version of Guile, but I bet it hasn't
worked in a long time. Jim has confirmed that this should
"Renesas E7000 PC ISA card". Nuff said?
Another set of Hitachi / Renesas ROM monitors, to which I
can find no references.
A support program for Mach 3.0. Currently used nowhere.
UnixWare user mode thread support.
For Windows CE devices. Pedro Alves breathed some life
back into these in June, but Chris Faylor rejected the
patch (with which I completely agree). It's a Windows-specific
remote protocol, and should use the GDB remote protocol
And now there's a Windows gdbserver as a start to that.
I think these files should be removed.