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Tom Tromey c3d4baadd2 Add lock_guard to thread_pool::thread_count
I think there's a possible race when calling thread_pool::thread_count
from a worker thread, if the main thread changes the number of threads
at the same time.

When this code was initially written, we didn't worry about this,
because this was only accessed from the main thread.  This is no
longer the case, though.

This patch fixes any potential problem by adding a lock_guard to the
method.  This doesn't seem too harmful because this is not called very
much and because I doubt this lock is highly contended.

While doing this I noticed that thread_pool::do_post_task could access
m_sized_at_least_once and m_thread_count without holding the lock.
This patch changes this method as well.

Approved-by: Kevin Buettner <kevinb@redhat.com>
2026-03-20 13:04:03 -06:00
bfd aarch64: add aarch64-phoenix target 2026-03-20 14:25:06 +01:00
binutils binutils/testsuite: don't leave temporary files in main dir 2026-03-13 10:32:42 +01:00
config tidy m4 plugin config support 2025-11-03 10:59:50 +10:30
contrib [contrib] Accept _("") and operator() in check_GNU_style_lib.py 2025-11-20 10:46:54 +01:00
cpu Fix even more -Wdiscarded-qualifers issues 2026-02-25 06:48:22 -08:00
elfcpp Update year range in copyright notice of binutils files 2026-01-01 23:22:14 +10:30
etc Update year range in copyright notice of binutils files 2026-01-01 23:22:14 +10:30
gas aarch64: add aarch64-phoenix target 2026-03-20 14:25:06 +01:00
gdb Remove 'fd' argument from exec_file_find 2026-03-20 11:31:30 -06:00
gdbserver GDB: aarch64-linux: Reorganize GCS-related definitions 2026-03-16 23:17:52 -03:00
gdbsupport Add lock_guard to thread_pool::thread_count 2026-03-20 13:04:03 -06:00
gnulib gnulib: re-generate Makefile.in 2026-01-06 15:14:50 -05:00
gold [gold] Note gold and dwp deprecation in NEWS 2026-02-05 12:11:34 +01:00
gprof gprof: fix testsuite with older glibc 2026-02-13 10:19:39 +01:00
gprofng gprofng: fix display gmon option error handling 2026-03-11 14:52:57 +02:00
include gas: pru: Add flag to select core revision 2026-03-15 09:44:02 +02:00
ld aarch64: add aarch64-phoenix target 2026-03-20 14:25:06 +01:00
libbacktrace tidy m4 plugin config support 2025-11-03 10:59:50 +10:30
libctf libctf: remove CTF_F_ARRNELEMS flag 2026-02-27 15:06:41 +00:00
libdecnumber regen config 2023-08-12 10:27:57 +09:30
libiberty update libiberty changelog 2026-03-09 08:21:49 +10:30
libsframe Free sframe encoder context 2026-02-11 15:31:33 +10:30
opcodes gas: pru: Add flag to select core revision 2026-03-15 09:44:02 +02:00
readline readline/tcap.h: Update definitions for C23 2025-05-02 12:00:05 -06:00
sim sim/sh: check PFSCR.PR setting for fldi0 and fldi1 insns 2026-03-17 13:49:37 +09:00
texinfo
zlib tidy m4 plugin config support 2025-11-03 10:59:50 +10:30
.clang-format Add .clang-format 2026-02-11 07:53:01 -07:00
.cvsignore
.editorconfig toplevel: unify the GCC and GDB/binutils .editorconfig files 2025-10-01 16:20:29 +01:00
.gitattributes binutils-gdb/git: Handle *.ac and *.m4 files in .gitattributes 2025-12-18 10:00:54 +01:00
.gitignore Add .clang-format 2026-02-11 07:53:01 -07:00
.pre-commit-config.yaml [pre-commit] Bump black to 26.3.1 2026-03-12 16:45:30 +01:00
ar-lib
ChangeLog Import the following commits from the master config sources: a2287c3041a3f2a204eb942e09c015eab00dc7dd 973e3e6af23b73a4f1b8d95680454cae22593bf8 3a71dc102953608d4592ec401b519837c28a672a f91a544533876c70f43b9fd51064b2bcf3fa7382 484648c73f3843b256dd011bd415e81594300a0a 7f4149527babe92cb5da1032734f5cb90cefdac5 9f6e0fe8ce04628bbd4a455118ff3f8309a1aef9 2026-01-08 11:20:38 +00:00
compile
config-ml.in MSP430: Add -fno-exceptions multilib 2023-08-12 10:24:26 +09:30
config.guess Import the following commits from the master config sources: a2287c3041a3f2a204eb942e09c015eab00dc7dd 973e3e6af23b73a4f1b8d95680454cae22593bf8 3a71dc102953608d4592ec401b519837c28a672a f91a544533876c70f43b9fd51064b2bcf3fa7382 484648c73f3843b256dd011bd415e81594300a0a 7f4149527babe92cb5da1032734f5cb90cefdac5 9f6e0fe8ce04628bbd4a455118ff3f8309a1aef9 2026-01-08 11:20:38 +00:00
config.rpath
config.sub Import the following commits from the master config sources: a2287c3041a3f2a204eb942e09c015eab00dc7dd 973e3e6af23b73a4f1b8d95680454cae22593bf8 3a71dc102953608d4592ec401b519837c28a672a f91a544533876c70f43b9fd51064b2bcf3fa7382 484648c73f3843b256dd011bd415e81594300a0a 7f4149527babe92cb5da1032734f5cb90cefdac5 9f6e0fe8ce04628bbd4a455118ff3f8309a1aef9 2026-01-08 11:20:38 +00:00
configure AMDGCN: Disable subdirectory configuration for unsupported GAS and LD 2026-02-18 17:32:32 +00:00
configure.ac AMDGCN: Disable subdirectory configuration for unsupported GAS and LD 2026-02-18 17:32:32 +00:00
COPYING
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
COPYING3
COPYING3.LIB
depcomp
djunpack.bat
install-sh
libtool.m4 Binutils/GCC: Add clang LTO support to AR, NM and RANLIB 2025-09-25 12:30:13 +08:00
ltgcc.m4
ltmain.sh ltmain.sh: allow more flags at link-time 2024-09-25 19:06:10 +01:00
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
MAINTAINERS Fix compiling bfd/vms-lib.c for a 32-bit host. 2024-03-18 10:26:16 +00:00
Makefile.def Sync top-level with GCC 2025-11-03 09:53:04 +00:00
Makefile.in Sync toplevel files from gcc 2025-10-02 07:42:18 +08:00
Makefile.tpl Sync toplevel files from gcc 2025-10-02 07:42:18 +08:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README README: don't talk about libg++ 2025-09-07 04:06:01 +01:00
README-maintainer-mode
SECURITY.txt Add a SECURITY.txt file describing the GNU Binutils' project's stance on security related bugs. 2023-04-20 16:52:11 +01:00
setup.com
src-release.sh Rename 'binutils' to 'binutils_with_gold'. Rename 'bin_no_gold' to 'binutils'. Add 'gold' 2025-02-04 11:50:02 +00:00
symlink-tree
test-driver
ylwrap

		   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, and so on. 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.