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Pedro Alves faf09f0119 Linux native: Use TRAP_BRKPT/TRAP_HWBPT
This patch adjusts the native Linux target backend to tell the core
whether a trap was caused by a breakpoint.

It teaches the target to get that information out of the si_code of
the SIGTRAP siginfo.

Tested on x86-64 Fedora 20, s390 RHEL 7, and PPC64 Fedora 18.  An
earlier version was tested on ARM Fedora 21.

gdb/ChangeLog:
2015-03-04  Pedro Alves  <palves@redhat.com>

	* linux-nat.c (save_sigtrap): Check for breakpoints before
	checking watchpoints.
	(status_callback) [USE_SIGTRAP_SIGINFO]: Don't check whether a
	breakpoint is inserted if relying on SIGTRAP's siginfo.si_code.
	(check_stopped_by_breakpoint) [USE_SIGTRAP_SIGINFO]: Decide whether
	a breakpoint triggered based on the SIGTRAP's siginfo.si_code.
	(linux_nat_stopped_by_sw_breakpoint)
	(linux_nat_supports_stopped_by_sw_breakpoint)
	(linux_nat_stopped_by_hw_breakpoint)
	(linux_nat_supports_stopped_by_hw_breakpoint): New functions.
	(linux_nat_wait_1): Don't re-increment the PC if relying on
	SIGTRAP's siginfo->si_code.
	(linux_nat_add_target): Install new target methods.
	* linux-thread-db.c (check_event): Don't account for breakpoint PC
	offset if the target already adjusted the PC.
	* nat/linux-ptrace.h (USE_SIGTRAP_SIGINFO): New.
	(GDB_ARCH_TRAP_BRKPT): New.
	(TRAP_HWBKPT): Define if not already defined.
2015-03-04 20:41:16 +00:00
bfd [AArch64] Removing unused functions. 2015-03-04 12:30:34 +00:00
binutils [ARM] Skip private symbol when doing objdump 2015-03-03 15:00:59 +00:00
config Fix --diable-shared --enable-plugins build breakage 2014-08-19 21:59:56 +09:30
cpu
elfcpp [gold] Recognize DWARF5/GCC5 DW_LANG_Fortran03 and DW_LANG_Fortran08. 2015-02-17 08:08:24 +01:00
etc
gas Allow MOVK for R_AARCH64_TLSLE_MOVW_TPREL_G{0,1}NC 2015-03-04 09:09:05 +00:00
gdb Linux native: Use TRAP_BRKPT/TRAP_HWBPT 2015-03-04 20:41:16 +00:00
gold Fix crash when processing merge section with entsize of 0. 2015-03-02 10:20:21 -08:00
gprof Regenerate Makeile.in file for copyright update 2015-01-02 22:27:27 +10:30
include Add ADR :tlsgd: directive and TLSGD_ADR_PREL21 support. 2015-02-26 22:23:09 +00:00
intl
ld Allow MOVK for R_AARCH64_TLSLE_MOVW_TPREL_G{0,1}NC 2015-03-04 09:09:05 +00:00
libdecnumber Another part of fixing "make TAGS". 2015-01-22 21:07:31 +02:00
libiberty strerror.c: Do not declare sys_nerr or sys_errlist if already macros 2015-01-19 16:29:07 +01:00
opcodes [ARM] Skip private symbol when doing objdump 2015-03-03 15:00:59 +00:00
readline Fix executable indicator in file name completion on Windows. 2014-12-30 21:14:25 +02:00
sim Fixes problems building the V850 simulator introduced with the previous delta. 2015-02-27 09:53:03 +00:00
texinfo
.cvsignore
.gitattributes
.gitignore
ChangeLog FT32 initial support 2015-01-28 16:25:18 +10:30
compile Update from upstream Automake 2014-11-16 13:43:48 +01:00
config-ml.in
config.guess config.sub, config.guess: Update from upstream, to 2015-01-01 version. 2015-01-02 10:40:57 +01:00
config.rpath
config.sub config.sub, config.guess: Update from upstream, to 2015-01-01 version. 2015-01-02 10:40:57 +01:00
configure FT32 initial support 2015-01-28 16:25:18 +10:30
configure.ac FT32 initial support 2015-01-28 16:25:18 +10:30
COPYING
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
COPYING3
COPYING3.LIB
depcomp Update from upstream Automake 2014-11-16 13:43:48 +01:00
djunpack.bat
install-sh Update from upstream Automake 2014-11-16 13:43:48 +01:00
libtool.m4 Update libtool.m4 from GCC trunk 2014-11-24 09:14:09 -08:00
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
MAINTAINERS Update description of ownership of files in include/ 2014-11-04 16:14:14 -08:00
Makefile.def [GCC bug #63539]: libgo does not use the newly built objcopy when doing a combined build 2015-01-03 14:54:45 -08:00
Makefile.in [GCC bug #63539]: libgo does not use the newly built objcopy when doing a combined build 2015-01-03 14:54:45 -08:00
Makefile.tpl [GCC bug #63539]: libgo does not use the newly built objcopy when doing a combined build 2015-01-03 14:54:45 -08:00
makefile.vms
missing Update from upstream Automake 2014-11-16 13:43:48 +01:00
mkdep
mkinstalldirs Update from upstream Automake 2014-11-16 13:43:48 +01:00
move-if-change Update `move-if-change' from gnulib 2014-11-16 17:04:02 +01:00
README
README-maintainer-mode
setup.com
src-release.sh src-release.sh: configure using --target. 2014-10-15 09:50:53 +02:00
symlink-tree
ylwrap Update from upstream Automake 2014-11-16 13:43:48 +01:00

		   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.