Date: Sun, 28 Mar 2004 10:01:16 -0800 (PST) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/tools/tools README src/tools/tools/gdb_regofs Makefile ia64.c Message-ID: <200403281801.i2SI1Gbm064282@repoman.freebsd.org>
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marcel 2004/03/28 10:01:16 PST
FreeBSD src repository
Modified files:
tools/tools README
Added files:
tools/tools/gdb_regofs Makefile ia64.c
Log:
Add a simple tool that prints out a register offset table to map
from the gdb(1) register number to offsets within struct reg and
struct fpreg. The tool is useful only on selected platforms. On
ia64 the registers are all over the place to simplify handling of
them in various situations, but which makes creating or maintaining
such an offset table error prone to do by hand.
Since remote kernel debugging operates on the same register numbers,
it would be a natural choice to use an identical offset table in the
kernel. However, since the kernel does not operate on struct reg nor
struct fpreg in the remote gdb(1) case, such would not make sense.
Whether we want to use this tool to create offsets for use in the
kernel or duplicate the knowledge of which register number maps to
what register is something that will become clear soon.
Note: in order to build cross debuggers, one cannot use target
headers and/or target definitions. That's why offsets need to be
hardcoded in the first place. Unpleasant, but necessary.
Revision Changes Path
1.31 +4 -0 src/tools/tools/README
1.1 +5 -0 src/tools/tools/gdb_regofs/Makefile (new)
1.1 +213 -0 src/tools/tools/gdb_regofs/ia64.c (new)
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