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Tom Tromey e0f3fd7c44 PR python/19293 - invalidate frame cache when unwinders change
PR python/19293 notes that when a Python unwinder is disabled, the
frame cache is not invalidated.  This means that disabling an unwinder
doesn't have any immediate effect -- but in my experience it's often
the case that I want to enable or disable an unwinder in order to see
what happens.

This patch adds a new gdb.invalidate_cached_frames function and
arranges for the relevant bits of library code to call it.  I've only
partially documented this function, considering a warning sufficient
without going into all the reasons ordinary code should not call it.
The name of the new function was taken from a comment in frame.h next
to reinit_frame_cache.

No new test as I think the updates to the existing test are sufficient
to show that the code is working as intended.

Built and regtested on x86-64 Fedora 23.

2016-07-12  Tom Tromey  <tom@tromey.com>

	PR python/19293:
	* python/lib/gdb/command/unwinders.py (do_enable_unwinder): Call
	gdb.invalidate_cached_frames.
	* python/lib/gdb/unwinder.py (register_unwinder): Call
	gdb.invalidate_cached_frames.
	* python/python.c (gdbpy_invalidate_cached_frames): New function.
	(python_GdbMethods): Add entry for invalidate_cached_frames.

2016-07-12  Tom Tromey  <tom@tromey.com>

	PR python/19293:
	* python.texi (Frames In Python): Document
	gdb.invalidate_cached_frames.

2016-07-12  Tom Tromey  <tom@tromey.com>

	PR python/19293:
	* gdb.python/py-unwind-maint.exp: Update tests.
2016-07-12 13:56:07 -06:00
bfd Second fix for grammar in error message. 2016-07-12 15:46:02 +01:00
binutils PR20337, Objdump makes poor choice of symbols 2016-07-09 16:53:33 +09:30
config Sync top level files with gcc. 2016-02-10 10:54:29 +00:00
cpu Correct fr30 comment 2016-03-03 12:55:30 +10:30
elfcpp Add support for MIPS .rld_map section. 2016-06-20 12:16:26 -07:00
etc Fix compile time warning messages building with gcc v6.1.1 2016-06-13 10:49:26 +01:00
gas TLS: DTPOFF can accept offsets, stored into addendum. Remove the need of base 2016-07-11 15:24:46 +02:00
gdb PR python/19293 - invalidate frame cache when unwinders change 2016-07-12 13:56:07 -06:00
gold Fix gold testsuite failure with GCC 6. 2016-06-29 23:24:35 -07:00
gprof Regenerate configure 2016-05-09 17:24:30 +09:30
include Fixes done to TLS. 2016-07-11 15:24:35 +02:00
intl Regen intl/configure 2015-08-31 12:53:36 +09:30
ld [ARC] Update test. 2016-07-11 15:41:23 +02:00
libdecnumber Remove leading/trailing white spaces in ChangeLog 2015-07-24 04:16:47 -07:00
libiberty Don't needlessly clear xmemdup allocated memory. 2016-05-31 20:34:47 +09:30
opcodes FT32: adjust disassembly opcode match fields 2016-07-08 11:38:35 -07:00
readline Revert "Sync readline/ to version 7.0 alpha" 2015-07-25 15:57:00 -04:00
sim Add support for simulating big-endian AArch64 binaries. 2016-06-30 09:10:41 +01:00
texinfo
zlib Regenerate configure 2016-05-09 17:24:30 +09:30
.cvsignore
.gitattributes Add a .gitattributes file for use with git-merge-changelog 2014-07-25 18:07:23 -04:00
.gitignore Import changes made to files shared with the FSF GCC project. 2016-01-11 11:06:56 +00:00
COPYING
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
COPYING3
COPYING3.LIB
ChangeLog [TILEPro] Don't build gdb 2016-06-28 14:16:15 -04:00
MAINTAINERS Update description of ownership of files in include/ 2014-11-04 16:14:14 -08:00
Makefile.def Sync top-level Makefile.def with GCC 2016-01-12 08:34:40 -08:00
Makefile.in Add dependencies to configure rule 2016-05-28 22:36:04 +09:30
Makefile.tpl Add dependencies to configure rule 2016-05-28 22:36:04 +09:30
README
README-maintainer-mode
compile Update from upstream Automake 2014-11-16 13:43:48 +01:00
config-ml.in Sync toplevel files with GCC 2015-07-27 07:49:05 -07:00
config.guess Fix typo introduced during the most recent synchronization update. 2016-05-27 14:34:06 +01:00
config.rpath
config.sub Sync config.guess and config.sub with FSF GCC mainline versions 2016-05-23 11:42:17 +01:00
configure [TILEPro] Don't build gdb 2016-06-28 14:16:15 -04:00
configure.ac [TILEPro] Don't build gdb 2016-06-28 14:16:15 -04:00
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 Sync top-level btool.m4 with GCC 2016-01-12 08:44:52 -08:00
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
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
setup.com
src-release.sh fix gdb version parsing in src-release.sh 2016-01-17 10:01:55 +04:00
symlink-tree
ylwrap Update from upstream Automake 2014-11-16 13:43:48 +01:00

README

		   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.