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* Upcoming removals from GDB
@ 2007-02-12 21:02 Daniel Jacobowitz
  0 siblings, 0 replies; only message in thread
From: Daniel Jacobowitz @ 2007-02-12 21:02 UTC (permalink / raw)
  To: gdb-announce

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 gdb@sourceware.org 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:

arm*-wince-pe

	But a new version of ARM WinCE support may be contributed
	soon!

hppa*-*-hiux*

	This does not affect HP/UX, hppa*-*-hpux*.

i[34567]86-ncr-*

i[34567]86-*-dgux*

i[34567]86-*-lynxos*

i[34567]86-*-netware*

i[34567]86-*-sco3.2v5*

i[34567]86-*-sco3.2v4*

i[34567]86-*-sco*

i[34567]86-*-sysv4.2*

i[34567]86-*-sysv4*

i[34567]86-*-sysv5*

i[34567]86-*-unixware2*

i[34567]86-*-unixware*

i[34567]86-*-sysv*

i[34567]86-*-isc*

m68*-cisco*-*

m68*-tandem-*

m68*-*-os68k*

mips*-*-pe

rs6000-*-lynxos*

sh*-*-pe



Source files which will be removed (along with my research notes):

abug-rom.c

	The ABug ROM Monitor target.  Only enabled for embedded m68k
	targets.

coff-solib.c
coff-solib.h

	These are only used for the rs6000-lynxos target.  I'm pretty
	much positive that no one has built a recent GDB for LynxOS.

cpu32bug-rom.c

	Like abug-rom.c, another embedded monitor for m68k.

d10v-tdep.c

	This was marked obsolete 2004-11-01; it's time for it to go.

dwarfread.c

	DWARF 1.  GCC removed support for generating this format
	several years ago.

hpacc-abi.c

	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
	next item.

hpread.c

	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).

i386v-nat.c

	This file is used for i[34567]86-*-sco* and for
	i[34567]86-*-sysv4* and for i[34567]86-*-unixware* (but not
	unixware2*).  I haven't heard of anyone using GDB on any of
	these configurations in a long time.

lynx-nat.c

	Again, only used on rs6000-lynxos.

mips-mdebug-tdep.c
mips-mdebug-tdep.h

	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.

mipsread.c

	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.

nlmread.c

	We already removed most support for NLM files (NetWare).  This
	was left behind.

ocd.c
ocd.h
ppc-bdm.c

	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-e7000.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-est.c

	"Remote debugging interface for EST-300 ICE".  I couldn't
	find even that much life.

remote-hms.c

	An on-board ROM monitor for Renesas boards.  No signs of life.

remote-st.c

	"Remote debugging interface for Tandem ST2000 phone switch"
	GDB is now the source of every google hit I checked for this
	product.

remote-utils.c
remote-utils.h

	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.

rom68k-rom.c

	"Remote target glue for the ROM68K ROM monitor"
	I found only one reference that wasn't to GDB or dejagnu.

scm-exp.c
scm-lang.c
scm-lang.h
scm-tags.h
scm-valprint.c

	"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
	go.

ser-e7kpc.c

	"Renesas E7000 PC ISA card".  Nuff said?

sh3-rom.c

	Another set of Hitachi / Renesas ROM monitors, to which I
	can find no references.

stop-gdb.c

	A support program for Mach 3.0.  Currently used nowhere.

uw-thread.c

	UnixWare user mode thread support.

wince-stub.c
wince-stub.h
wince.c

	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
	instead.

	And now there's a Windows gdbserver as a start to that.
	I think these files should be removed.

-- 
Daniel Jacobowitz
CodeSourcery

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