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# Copyright 2008-2018 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 inferior resumption after discarding a hand-called function.
# There are two things to test.
# 1) Inferior stops normally. Upon resumption it should continue normally,
# regardless of whatever signal the hand-called function got.
# 2) Inferior is stopped at a signal. Upon resumption it should continue
# with that signal, regardless of whatever the hand-called function did.
if [target_info exists gdb,nosignals] {
verbose "Skipping call-signal-resume.exp because of nosignals."
continue
}
standard_testfile call-signals.c
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
untested "failed to compile"
return -1
}
# Some targets can't do function calls, so don't even bother with this
# test.
if [target_info exists gdb,cannot_call_functions] {
unsupported "this target can not call functions"
continue
}
proc get_dummy_frame_number { } {
global gdb_prompt
gdb_test_multiple "bt" "backtrace" {
-re "#(\[0-9\]*) *<function called from gdb>.*$gdb_prompt $" {
return $expect_out(1,string)
}
}
return ""
}
# Start with a fresh gdb.
clean_restart ${binfile}
if { ![runto_main] } {
fail "can't run to main"
return 0
}
gdb_test "break stop_one" "Breakpoint \[0-9\]* at .*"
gdb_test "continue" "Continuing.*Breakpoint \[0-9\]*, stop_one.*" \
"continue to breakpoint at stop_one"
# Call function (causing the program to get a signal), and see if gdb handles
# it properly.
if {[gdb_test "call gen_signal ()" \
"\[\r\n\]*The program being debugged was signaled.*" \
"inferior function call signaled"] != 0} {
return 0
}
set frame_number [get_dummy_frame_number]
if { "$frame_number" == "" } {
fail "dummy stack frame number"
setup_xfail "*-*-*"
} else {
pass "dummy stack frame number"
}
# Pop the dummy frame.
gdb_test "frame $frame_number" ".*"
gdb_test_no_output "set confirm off"
gdb_test "return" ""
# Verify there are no remains of the dummy frame.
gdb_test_no_output "maintenance print dummy-frames"
set test "maintenance info breakpoints"
gdb_test_multiple $test $test {
-re " call dummy .*\r\n$gdb_prompt $" {
fail $test
}
-re "\r\n$gdb_prompt $" {
pass $test
}
}
# Resume execution, the program should continue without any signal.
gdb_test "break stop_two" "Breakpoint \[0-9\]* at .*"
gdb_test "continue" "Breakpoint \[0-9\]*, stop_two.*" \
"continue to breakpoint at stop_two"
# Continue again, we should get a signal.
gdb_test "continue" "Program received signal .*" \
"continue to receipt of signal"
# Hand call another function that prematurely stops,
# then manually pop the dummy stack frame.
gdb_test "break null_hand_call" "Breakpoint \[0-9\]* at .*"
gdb_test "call null_hand_call ()" "Breakpoint \[0-9\]*, null_hand_call.*" \
"null_hand_call"
set frame_number [get_dummy_frame_number]
if { "$frame_number" == "" } {
fail "dummy stack frame number"
setup_xfail "*-*-*"
# Need something.
set frame_number 0
} else {
pass "dummy stack frame number"
}
# Pop the dummy frame.
gdb_test "frame $frame_number" ".*"
gdb_test_no_output "set confirm off"
gdb_test "return" ""
# Continue again, this time we should get to the signal handler.
gdb_test "break handle_signal" "Breakpoint \[0-9\]* at .*"
gdb_test "continue" "Breakpoint \[0-9\]*, handle_signal.*" \
"continue to breakpoint at handle_signal"
# Continue one last time, the program should exit normally.
gdb_test "continue" "$inferior_exited_re normally." \
"continue to program exit"
return 0
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