Binutils with MCST patches
1d7611244c
Update `fetch_register' and `store_register' code to support arbitrary register widths rather than only ones that are a multiply of the size of the `ptrace' data type used with PTRACE_PEEKUSR and PTRACE_POKEUSR requests to access registers. Remove associated assertions, correcting an issue with accessing the DSPControl (`$dspctl') register on n64 MIPS native targets: (gdb) print /x $dspctl .../gdb/linux-nat-trad.c:50: internal-error: void linux_nat_trad_target::fetch_register(regcache*, int): Assertion `(size % sizeof (PTRACE_TYPE_RET)) == 0' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) n This is a bug, please report it. For instructions, see: <http://www.gnu.org/software/gdb/bugs/>. .../gdb/linux-nat-trad.c:50: internal-error: void linux_nat_trad_target::fetch_register(regcache*, int): Assertion `(size % sizeof (PTRACE_TYPE_RET)) == 0' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Create a core file of GDB? (y or n) n Command aborted. (gdb) All registers are now reported correctly and their architectural hardware widths respected: (gdb) print /x $dspctl $1 = 0x55aa33cc (gdb) info registers zero at v0 v1 R0 0000000000000000 0000000000000001 000000fff7ffeb20 0000000000000000 a0 a1 a2 a3 R4 0000000000000001 000000ffffffeaf8 000000ffffffeb08 0000000000000000 a4 a5 a6 a7 R8 000000fff7ee3800 000000fff7ede8f0 000000ffffffeaf0 2f2f2f2f2f2f2f2f t0 t1 t2 t3 R12 0000000000000437 0000000000000002 000000fff7ffd000 0000000120000ad0 s0 s1 s2 s3 R16 000000fff7ee2068 0000000120000e60 0000000000000000 0000000000000000 s4 s5 s6 s7 R20 0000000000521ec8 0000000000522608 0000000000000000 0000000000000000 t8 t9 k0 k1 R24 0000000000000000 0000000120000d9c 0000000000000000 0000000000000000 gp sp s8 ra R28 0000000120019030 000000ffffffe990 000000ffffffe990 000000fff7d5b88c status lo hi badvaddr 0000000000109cf3 0000000000005ea5 0000000000000211 000000fff7fc6fe0 cause pc 0000000000800024 0000000120000dbc fcsr fir hi1 lo1 00000000 00f30000 0000000000000000 0101010101010101 hi2 lo2 hi3 lo3 0202020202020202 0303030303030303 0404040404040404 0505050505050505 dspctl restart 55aa33cc 0000000000000000 (gdb) NB due to the lack of access to 64-bit DSP hardware all DSP register values in the dumps are artificial and have been created with a debug change applied to the kernel handler of the `ptrace' syscall. The use of `store_unsigned_integer' and `extract_unsigned_integer' unconditionally in all cases rather than when actual data occupies a part of the data quantity exchanged with `ptrace' makes code perhaps marginally slower, however I think avoiding it is not worth code obfuscation it would cause. If this turns out unfounded, then there should be no problem with optimizing this code later. gdb/ PR gdb/22286 * linux-nat-trad.c (linux_nat_trad_target::fetch_register): Also handle registers whose width is not a multiple of PTRACE_TYPE_RET. (linux_nat_trad_target::store_register): Likewise. |
||
---|---|---|
bfd | ||
binutils | ||
config | ||
cpu | ||
elfcpp | ||
etc | ||
gas | ||
gdb | ||
gold | ||
gprof | ||
include | ||
intl | ||
ld | ||
libdecnumber | ||
libiberty | ||
opcodes | ||
readline | ||
sim | ||
texinfo | ||
zlib | ||
.cvsignore | ||
.gitattributes | ||
.gitignore | ||
ChangeLog | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
COPYING | ||
COPYING3 | ||
COPYING3.LIB | ||
COPYING.LIB | ||
COPYING.LIBGLOSS | ||
COPYING.NEWLIB | ||
depcomp | ||
djunpack.bat | ||
install-sh | ||
libtool.m4 | ||
lt~obsolete.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
makefile.vms | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
README | ||
README-maintainer-mode | ||
setup.com | ||
src-release.sh | ||
symlink-tree | ||
ylwrap |
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.