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Joel Brobecker 77ca787b12 [ia64-hpux] unwinding bsp value from system call
This fixes unwinding from a thread that is stopped inside a system call.
This can be seen when switching to a thread that is stopped doing a
pthread_cond_wait, for instance...

The comments inside the code should explain what is happening in our
case (the HP-UX exception in the case of system calls): Under certain
circumstances (program stopped inside syscall), the offset to apply to
the current BSP in order to compute the previous BSP is not the usual
CFM & 0x7f.

We parts in this patch:

  1. Figuring out that we are stopped inside a syscal: This requires
     a TT_LWP_RUREGS ttrace call, which is not directly possible from
     ia64-tdep.c.  So use defined a new TARGET_OBJECT_HPUX_UREGS object
     to request it from the -nat side.

  2. Add a gdbarch_tdep method that allows us to change the default
     behavior on ia64-hpux, permitting us to have a different "size of
     register frame" in that one particular case.

gdb/ChangeLog:

        * target.h (enum target_object): Add TARGET_OBJECT_HPUX_UREGS.
        * ia64-tdep.h (struct frame_info): forward declaration.
        (struct gdbarch_tdep): Add field size_of_register_frame.
        * ia64-tdep.c (ia64_access_reg): Use tdep->size_of_register_frame
        to determine the size of the register frame.
        (ia64_size_of_register_frame): New function.
        (ia64_gdbarch_init): Set tdep->size_of_register_frame.
        * ia64-hpux-tdep.c: Include "target.h" and "frame.h".
        (IA64_HPUX_UREG_REASON): New macro.
        (ia64_hpux_stopped_in_syscall, ia64_hpux_size_of_register_frame):
        New functions.
        (ia64_hpux_init_abi): Set tdep->size_of_register_frame.
        * ia64-hpux-nat.c (ia64_hpux_xfer_uregs): New function.
        (ia64_hpux_xfer_partial): Add handling of TARGET_OBJECT_HPUX_UREGS
        objects.
2011-01-13 16:24:27 +00:00
bfd daily update 2011-01-12 23:00:05 +00:00
binutils * readelf.c (print_symbol): Handle symbol characters as unsigned. 2011-01-11 10:46:55 +00:00
config PR target/40125 2010-12-06 01:40:20 +00:00
cpu Fix build with -DDEBUG=7 2010-10-08 14:00:50 +00:00
elfcpp * elfcpp.h (enum SHT): Add SHT_GNU_INCREMENTAL_GOT_PLT. 2010-08-12 22:18:14 +00:00
etc PR other/46202: implement install-strip. 2010-11-20 19:37:58 +00:00
gas Take unadjusted offset for loongson3a specific instructions. 2011-01-11 07:22:09 +00:00
gdb [ia64-hpux] unwinding bsp value from system call 2011-01-13 16:24:27 +00:00
gold * layout.cc (Layout::layout_eh_frame): Mark a writable .eh_frame 2011-01-10 21:57:31 +00:00
gprof * po/da.po: Updated Danish translation. 2011-01-10 13:51:10 +00:00
include merge from gcc 2011-01-12 19:04:47 +00:00
intl merge from gcc 2010-09-27 21:01:18 +00:00
ld Add xfail and notarget. 2011-01-13 15:23:59 +00:00
libdecnumber merge from gcc 2011-01-03 21:05:58 +00:00
libiberty merge from gcc 2011-01-03 21:05:58 +00:00
opcodes * rx-dis.c (print_insn_rx): Support RX_Operand_TwoReg. 2011-01-12 07:06:29 +00:00
readline Regenerate tree using Autoconf 2.64 and Automake 1.11. 2009-08-22 16:56:56 +00:00
sim sim: enable hw_tree_delete in sim_hw_uninstall 2011-01-12 22:10:46 +00:00
texinfo * texinfo/texinfo.tex: Update to version 2009-03-28.05. 2009-04-21 12:36:46 +00:00
.cvsignore
.gitignore start a gitignore 2010-11-17 19:34:59 +00:00
ChangeLog port GDB to ia64-hpux (native). 2011-01-13 16:24:13 +00:00
compile Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
config-ml.in Merge from gcc top-level. 2010-11-19 22:06:27 +00:00
config.guess /: 2010-06-01 17:53:40 +00:00
config.rpath * config.rpath: Add AIX 6 support. 2008-03-13 19:27:44 +00:00
config.sub /: 2010-06-01 17:53:40 +00:00
configure port GDB to ia64-hpux (native). 2011-01-13 16:24:13 +00:00
configure.ac port GDB to ia64-hpux (native). 2011-01-13 16:24:13 +00:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS 2010-12-18 Jeff Johnston <jjohnstn@redhat.com> 2010-12-17 22:10:05 +00:00
COPYING.NEWLIB 2010-12-02 Jeff Johnston <jjohnstn@redhat.com> 2010-12-02 20:05:11 +00:00
depcomp Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
djunpack.bat * djunpack.bat: Use ".." quoting in Sed command, for the sake of 2009-03-27 13:37:09 +00:00
install-sh Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
libtool.m4 Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
lt~obsolete.m4 Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
ltgcc.m4 * libtool.m4: Update to libtool 2.2.6. 2008-09-29 15:28:14 +00:00
ltmain.sh Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
ltoptions.m4 Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
ltsugar.m4 * libtool.m4: Update to libtool 2.2.6. 2008-09-29 15:28:14 +00:00
ltversion.m4 Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
MAINTAINERS * MAINTAINERS: Perform some obvious fixups. 2009-08-19 02:53:50 +00:00
Makefile.def PR other/46020 2010-11-26 04:56:39 +00:00
Makefile.in PR other/46020 2010-11-26 04:56:39 +00:00
Makefile.tpl PR other/46020 2010-11-26 04:56:39 +00:00
makefile.vms
missing Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
mkdep
mkinstalldirs Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
move-if-change
README
README-maintainer-mode Cleanups after the update to Autoconf 2.64, Automake 1.11. 2009-08-22 17:08:11 +00:00
setup.com 2009-09-01 Tristan Gingold <gingold@adacore.com> 2009-09-01 13:38:26 +00:00
src-release 2010-12-10 Tristan Gingold <gingold@adacore.com> 2010-12-10 09:10:49 +00:00
symlink-tree
ylwrap Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00

		   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.