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Tom Tromey c0e70c624f Remove find_old_style_renaming_symbol
We found a case where a "bt" was very slow with Ada code.  Profiling
with callgrind showed this to be primarily due to calls to
find_old_style_renaming_symbol.  Because new-style renaming symbols
were implemented in 2007, it seems safe enough to remove this old
code.

A "-batch -ex bt" test on a large Ada program improves from:

    13.23user 0.57system 0:13.82elapsed 99%CPU (0avgtext+0avgdata 571408maxresident)k

to

    4.25user 0.48system 0:04.74elapsed 99%CPU (0avgtext+0avgdata 559844maxresident)k

with this patch.

Tested on x86-64 Fedora 29.  Joel reviewed this internally; and as it
is Ada-specific, I am checking it in.

gdb/ChangeLog
2019-05-28  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_remove_Xbn_suffix)
	(find_old_style_renaming_symbol)
	(parse_old_style_renaming): Remove.
	(ada_find_renaming_symbol): Don't call
	find_old_style_renaming_symbol.
	(ada_is_renaming_symbol): Rename from
	ada_find_renaming_symbol.  Remove "block" parameter.  Return
	bool.  Now static.
	(ada_read_var_value): Update and simplify.
	* ada-exp.y (write_var_or_type): Remove old code.
2019-05-28 12:39:01 -04:00
bfd COFF linker segmentation faults 2019-05-28 17:57:51 +09:30
binutils Add libctf to top-level MAINTAINERS; add myself as CTF maintainer. 2019-05-28 17:10:04 +01:00
config
contrib
cpu cpu: add eBPF cpu description 2019-05-23 19:33:50 +02:00
elfcpp [PATCH 1/57][Arm][GAS]: Add support for +mve and +mve.fp 2019-05-16 16:17:21 +01:00
etc
gas Fix failure on powerpc 32-bit only targets 2019-05-27 14:08:17 +09:30
gdb Remove find_old_style_renaming_symbol 2019-05-28 12:39:01 -04:00
gold Fix problem with ICF where diffs in EH frame info is ignored. 2019-05-11 07:27:10 +08:00
gprof Correct the alpha sorting of the short options in the usage description of the gprof program. 2019-05-20 17:17:24 +01:00
include libctf: debug dumping 2019-05-28 17:09:37 +01:00
intl
ld PE linker segmentation fault with MALLOC_PERTURB_=1 2019-05-28 20:47:14 +09:30
libctf libctf: build system 2019-05-28 17:09:41 +01:00
libdecnumber
libiberty Pull in patch for libiberty that fixes a stack exhaustion bug when demangling a pathalogically constructed mangled name. 2019-04-10 15:49:36 +01:00
opcodes Regen POTFILES for bpf 2019-05-24 23:15:07 +09:30
readline config.guess,config.sub: synchronize with config project master sources 2019-05-23 18:19:56 +02:00
sim sim: Use host not target byte order for merging and splitting values 2019-04-13 22:21:14 +01:00
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ChangeLog Add libctf to top-level MAINTAINERS; add myself as CTF maintainer. 2019-05-28 17:10:04 +01:00
compile
config-ml.in
config.guess config.guess,config.sub: synchronize with config project master sources 2019-05-23 18:19:56 +02:00
config.rpath
config.sub config.guess,config.sub: synchronize with config project master sources 2019-05-23 18:19:56 +02:00
configure libctf: build system 2019-05-28 17:09:41 +01:00
configure.ac libctf: build system 2019-05-28 17:09:41 +01:00
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MAINTAINERS Add libctf to top-level MAINTAINERS; add myself as CTF maintainer. 2019-05-28 17:10:04 +01:00
Makefile.def libctf: build system 2019-05-28 17:09:41 +01:00
Makefile.in libctf: build system 2019-05-28 17:09:41 +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.