binutils-gdb/gdb/testsuite/gdb.multi/multi-attach.exp
Pedro Alves 4c92ff2c35 testsuite: refactor spawn and wait for attach
Several places in the testsuite have a copy of a snippet of code that
spawns a test program, waits a bit, and then does some PID munging for
Cygwin.  This is in order to have GDB attach to the spawned program.

This refactors all that to a common procedure.

(multi-attach.exp wants to spawn multiple processes, so this makes the
new procedure's interface work with lists.)

Tested on x86_64 Fedora 20.

gdb/testsuite/ChangeLog:
2014-09-11  Pedro Alves  <palves@redhat.com>

	* lib/gdb.exp (spawn_wait_for_attach): New procedure.
	* gdb.base/attach.exp (do_attach_tests, do_call_attach_tests)
	(do_command_attach_tests): Use spawn_wait_for_attach.
	* gdb.base/solib-overlap.exp: Likewise.
	* gdb.multi/multi-attach.exp: Likewise.
	* gdb.python/py-prompt.exp: Likewise.
	* gdb.python/py-sync-interp.exp: Likewise.
	* gdb.server/ext-attach.exp: Likewise.
2014-09-11 13:04:14 +01:00

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# This testcase is part of GDB, the GNU debugger.
# Copyright 2007-2014 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Test attaching to multiple threaded programs.
standard_testfile
# We need to use TCL's exec to get the pid.
if [is_remote target] then {
return 0
}
if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug additional_flags=-lpthread}]} {
return -1
}
# Start the programs running and then wait for a bit, to be sure that
# they can be attached to.
set pid_list [spawn_wait_for_attach [list $binfile $binfile]]
set testpid1 [lindex $pid_list 0]
set testpid2 [lindex $pid_list 1]
gdb_test "attach $testpid1" \
"Attaching to program: .*, process $testpid1.*(in|at).*" \
"attach to program 1"
gdb_test "backtrace" ".*main.*" "backtrace 1"
gdb_test "add-inferior -exec $binfile" \
"Added inferior 2.*" \
"add second inferior"
gdb_test "inferior 2" ".*Switching to inferior 2.*" "switch to second inferior"
gdb_test "attach $testpid2" \
"Attaching to program: .*, process $testpid2.*(in|at).*" \
"attach to program 2"
gdb_test "backtrace" ".*main.*" "backtrace 2"
gdb_test "kill" "" "kill inferior 2" "Kill the program being debugged.*" "y"
gdb_test "inferior 1" ".*Switching to inferior 1.*"
gdb_test "kill" "" "kill inferior 1" "Kill the program being debugged.*" "y"