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Markus Metzger d68e53f479 btrace: support 32-bit inferior on 64-bit host
The heuristic for filtering out kernel addressess in BTS trace checks the
most significant bit in each address.  This works fine for 32-bit and 64-bit
mode.

For 32-bit compatibility mode, i.e. a 32-bit inferior running on 64-bit
host, we need to check bit 63 (or any bit bigger than 31), not bit 31.

Use the machine field in struct utsname provided by a uname call to
determine whether we are running on a 64-bit host.

Thanks to Jan Kratochvil for reporting the issue.

gdb/
	* nat/linux-btrace.c: Include sys/utsname.h.
	(linux_determine_kernel_ptr_bits): New.
	(linux_enable_bts): Call linux_determine_kernel_ptr_bits.
	* x86-linux-nat.c (x86_linux_enable_btrace): Do not overwrite non-zero
	ptr_bits.

gdbserver/
	* linux-low.c (linux_low_enable_btrace): Do not overwrite non-zero
	ptr_bits.
2015-03-03 12:47:41 +01:00
bfd Automatic date update in version.in 2015-03-03 00:00:07 +00:00
binutils objcopy: Add --update-section option. 2015-02-28 21:25:51 +00:00
config
cpu
elfcpp [gold] Recognize DWARF5/GCC5 DW_LANG_Fortran03 and DW_LANG_Fortran08. 2015-02-17 08:08:24 +01:00
etc
gas Pad only text sections at end by default 2015-02-28 22:26:56 +10:30
gdb btrace: support 32-bit inferior on 64-bit host 2015-03-03 12:47:41 +01:00
gold Fix crash when processing merge section with entsize of 0. 2015-03-02 10:20:21 -08:00
gprof
include Add ADR :tlsgd: directive and TLSGD_ADR_PREL21 support. 2015-02-26 22:23:09 +00:00
intl
ld Correct -z nocopyreloc doc 2015-03-02 16:57:08 +10:30
libdecnumber
libiberty
opcodes [SH] Fix clrs, sets, pref insn arch memberships. 2015-02-25 21:26:59 +01:00
readline
sim Fixes problems building the V850 simulator introduced with the previous delta. 2015-02-27 09:53:03 +00:00
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		   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.