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Antoine Tremblay dd37334957 Add the target_ops needed for software breakpoints in GDBServer.
This patch is in preparation for software breakpoints on ARM linux.  It
refactors breakpoint and breakpoint_len into breakpoint_kind_from_pc and
sw_breakpoint_from kind to prepare the case where we have multiple types of
breakpoints.

Kind is the type of breakpoint (hardware or software) to be inserted, usually it
is the lenght of the software breakpoint but can be something else depending on
the target.

This patch introduces the linux_target_ops breakpoint_kind_from_pc and
sw_breakpoint_from_kind.

breakpoint_kind_from_pc returns the breakpoint kind and adjusts the PC to the
real memory location in case a flag was present in the PC. E.g the instruction
mode on ARM.

sw_breakpoint_from_kind returns the software breakpoint for this kind as a
string of bytes, the length of the breakpoint is adjusted for the breakpoint's
size in memory.

For targets that have only one kind of breakpoint, the default value 0 is
returned by linux_breakpoint_kind_from_pc so that not all targets need to
implement the breakpoint_kind_from_pc operation.

No regressions, tested on Ubuntu 14.04 on ARMv7 and x86
With gdbserver-{native,extended} / { -marm -mthumb }

Also since the target_ops have been changed compilation was tested on
affected archs namely : aarch64, arm, bfin, cris, crisv32, m32r,
m68k, mips, nios2, ppc, s390, sparc, tic6x, tile, x86, steins.

Not tested : sh

gdb/gdbserver/ChangeLog:

	* linux-aarch64-low.c (aarch64_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-arm-low.c (arm_breakpoint_kind_from_pc): New function.
	(arm_sw_breakpoint_from_kind): New function.
	* linux-bfin-low.c (bfin_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-cris-low.c (cris_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-crisv32-low.c (cris_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-low.c (linux_wait_1): Call breakpoint_kind_from_pc
	and sw_breakpoint_from_kind to increment the pc.
	(linux_breakpoint_kind_from_pc): New function.
	(linux_sw_breakpoint_from_kind): New function.
	(struct target_ops) <sw_breakpoint_from_kind>: Initialize field.
	(initialize_low): Call breakpoint_kind_from_pc and
	sw_breakpoint_from_kind to replace breakpoint_data/len.
	* linux-low.h (struct linux_target_ops) <breakpoint_kind_from_pc>:
	New field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Likewise.
	* linux-m32r-low.c (m32r_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-m68k-low.c (m68k_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-mips-low.c (mips_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-nios2-low.c (nios2_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-ppc-low.c (ppc_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-s390-low.c (s390_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-sh-low.c (sh_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-sparc-low.c (sparc_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-tic6x-low.c (tic6x_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-tile-low.c (tile_sw_breakpoint_from_kind): New function.
	* linux-x86-low.c (x86_sw_breakpoint_from_kind): New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
	* linux-xtensa-low.c (xtensa_sw_breakpoint_from_kind) New function.
	(struct linux_target_ops) <breakpoint>: Remove.
	(struct linux_target_ops) <breakpoint_len>: Remove.
	(struct linux_target_ops) <breakpoint_kind_from_pc>: Initialize field.
	(struct linux_target_ops) <sw_breakpoint_from_kind>: Initialize field.
2015-10-21 11:24:55 -04:00
bfd Automatic date update in version.in 2015-10-21 00:00:08 +00:00
binutils Fix typo in spelling of author's name. 2015-10-21 16:20:02 +01:00
config Missing parts of fixes for in-tree libiconv 2015-08-24 10:57:03 +01:00
cpu Remove leading/trailing white spaces in ChangeLog 2015-07-24 04:16:47 -07:00
elfcpp Add EM_IAMCU support to gold 2015-10-13 09:02:41 -07:00
etc
gas Extend description of the --enable-compressed-debug-sections configure option in gas and ld. 2015-10-21 14:57:28 +01:00
gdb Add the target_ops needed for software breakpoints in GDBServer. 2015-10-21 11:24:55 -04:00
gold Feed right input object to x86_64_mov_to_lea1[12] 2015-10-20 10:46:47 -07:00
gprof Remove trailing spaces in gprof 2015-08-12 04:43:32 -07:00
include Avoid using 'template' C++ keyword 2015-10-07 15:22:47 +01:00
intl Regen intl/configure 2015-08-31 12:53:36 +09:30
ld Extend description of the --enable-compressed-debug-sections configure option in gas and ld. 2015-10-21 14:57:28 +01:00
libdecnumber Remove leading/trailing white spaces in ChangeLog 2015-07-24 04:16:47 -07:00
libiberty Resync files in the binutils repository that are maintained in the gcc repository. 2015-09-30 17:55:16 +01:00
opcodes Add missing changelog entries 2015-10-14 12:19:39 +02:00
readline Revert "Sync readline/ to version 7.0 alpha" 2015-07-25 15:57:00 -04:00
sim sim: ft32: test coverage for link parameters and PM write port 2015-10-12 20:23:26 -04:00
texinfo
zlib Remove leading/trailing white spaces in ChangeLog 2015-07-24 04:16:47 -07:00
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ChangeLog Reset x86 Linux targets to not compressing debug sections by default. Enable compression of debug sections by default in the linker, if so configured. 2015-10-21 13:15:39 +01:00
compile
config-ml.in Sync toplevel files with GCC 2015-07-27 07:49:05 -07:00
config.guess Sync config.sub and config.guess with GCC 2015-08-07 07:51:39 -07:00
config.rpath
config.sub Sync config.sub and config.guess with GCC 2015-08-07 07:51:39 -07:00
configure Reset x86 Linux targets to not compressing debug sections by default. Enable compression of debug sections by default in the linker, if so configured. 2015-10-21 13:15:39 +01:00
configure.ac Reset x86 Linux targets to not compressing debug sections by default. Enable compression of debug sections by default in the linker, if so configured. 2015-10-21 13:15:39 +01:00
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Makefile.def Resync files in the binutils repository that are maintained in the gcc repository. 2015-09-30 17:55:16 +01:00
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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.