a08ac84b96
When I run make check: ... $ cd build/gdb $ make check 2>&1 | tee ../CHECKLOG.gdb ... I see after ~30m the summary of the test run printed, but make still hangs. This seems to be due to some sleeping processes: ... $ ps fx | grep fork-run 6475 ? S 0:00 gdb.base/fork-running-state/fork-running-state 6451 ? S 0:00 gdb.base/fork-running-state/fork-running-state 6427 ? S 0:00 gdb.base/fork-running-state/fork-running-state ... Killing the sleeping processes like this: ... kill -9 $(ps -A | grep fork-running-st | awk '{print $1}') ... allows make to finish. If I isolate one debug session from fork-running-state.exp that causes one of these sleeping processes, we get: ... (gdb) set non-stop on (gdb) break main Breakpoint 1 at 0x400665: file src/gdb/testsuite/gdb.base/fork-running-state.c, line 52. (gdb) run Starting program: build/gdb/testsuite/outputs/gdb.base/fork-running-state/ fork-running-state Breakpoint 1, main () at src/gdb/testsuite/gdb.base/fork-running-state.c:52 52 save_parent = getpid (); (gdb) set detach-on-fork on (gdb) set follow-fork parent (gdb) continue & Continuing. [Detaching after fork from child process 18797] (gdb) info threads Id Target Id Frame * 1 process 18793 "fork-running-st" (running) (gdb) set print inferior-events off (gdb) kill inferior 1 ... So, AFAIU, the hanging process is the child process that gdb detaches from. There's an alarm set in main before the fork, but alarms are not preserved in the fork child: ... $ man alarm ... NOTES Alarms created by alarm() are preserved across execve(2) and are not inherited by children created via fork(2). ... So, AFAIU, once the parent is killed, there's no alarm to terminate the child. The patch fixes this by moving the setting of the alarm into the fork_main/fork_child functions, making sure that an alarm will trigger for the child. Tested with make check on x86_64. 2018-06-13 Tom de Vries <tdevries@suse.de> PR testsuite/23269 * gdb.base/fork-running-state.c (main): Move setting of alarm ... (fork_child): ... here, and ... (fork_parent): ... here. |
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bfd | ||
binutils | ||
config | ||
cpu | ||
elfcpp | ||
etc | ||
gas | ||
gdb | ||
gold | ||
gprof | ||
include | ||
intl | ||
ld | ||
libdecnumber | ||
libiberty | ||
opcodes | ||
readline | ||
sim | ||
texinfo | ||
zlib | ||
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.gitattributes | ||
.gitignore | ||
COPYING | ||
COPYING.LIB | ||
COPYING.LIBGLOSS | ||
COPYING.NEWLIB | ||
COPYING3 | ||
COPYING3.LIB | ||
ChangeLog | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
README | ||
README-maintainer-mode | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
depcomp | ||
djunpack.bat | ||
install-sh | ||
libtool.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
lt~obsolete.m4 | ||
makefile.vms | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
setup.com | ||
src-release.sh | ||
symlink-tree | ||
ylwrap |
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.