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# Copyright 2004, 2007-2012 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/>.
# Author: Paul N. Hilfinger (Hilfinger@gnat.com)
# Test that GDB cleans up properly after errors that result when a
# breakpoint is reset.
# IDT/SIM apparently doesn't have enough file descriptors to allow the
# problem checked by this test to occur.
if [istarget "mips-idt-*"] {
return 0;
}
set testfile "chng-syms"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var1}] != "" } {
untested chng-syms.exp
return -1
}
set oldtimeout $timeout
set timeout 10
verbose "Timeout is now 10 seconds" 2
proc expect_to_stop_here { ident } {
global gdb_prompt
global decimal
# the "at foo.c:36" output we get with -g.
# the "in func" output we get without -g.
gdb_expect {
-re "Breakpoint \[0-9\]*, stop_here .*$gdb_prompt $" {
return 1
}
-re "$gdb_prompt $" {
fail "running to stop_here $ident"
return 0
}
timeout {
fail "running to stop_here $ident (timeout)"
return 0
}
}
return 1
}
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
gdb_test "break stop_here if (var1 == 42)" \
"Breakpoint.*at.* file .*$srcfile, line.*" \
"setting conditional breakpoint on function"
gdb_run_cmd
expect_to_stop_here "first time"
gdb_continue_to_end "breakpoint first time through"
# Now we recompile the executable, but without a variable named "var1", first
# waiting to insure that even on fast machines, the file modification times
# are distinct. This will force GDB to reload the file on the
# next "run" command, causing an error when GDB tries to tries to reset
# the breakpoint.
sleep 2
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var2}] != "" } {
# Complication: Since GDB generally holds an open file descriptor on the
# executable at this point, there are some systems in which the
# re-compilation will fail. In such cases, we'll consider the test
# (vacuously) passed providing that re-running it succeeds as before.
gdb_run_cmd
expect_to_stop_here "after re-compile fails"
gdb_continue_to_end "after re-compile fails"
} else {
gdb_run_cmd
gdb_expect {
-re ".*$inferior_exited_re normally.*$gdb_prompt $" {
pass "running with invalidated bpt condition after executable changes"
}
-re ".*Breakpoint .*,( 0x.* in)? (\[^ \]*)exit .*$gdb_prompt $" {
pass "running with invalidated bpt condition after executable changes"
}
-re "$gdb_prompt $" {
fail "running with invalidated bpt condition after executable changes"
}
timeout {
fail "(timeout) running with invalidated bpt condition after executable changes"
}
}
}
set timeout $oldtimeout
verbose "Timeout is now $timeout seconds" 2
return 0
|
