--- /dev/null
+# Copyright 1997-2015 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/>.
+
+# This is a test of gdb's follow-exec-mode.
+#
+# It first checks that exec events are supported by using a catchpoint,
+# then tests multiple scenarios for follow-exec-mode using parameters
+# that test:
+# - each mode
+# - different commands to execute past the exec
+# - re-running both the original and new inferiors.
+#
+# Note that we can't single-step past an exec call. There has to
+# be a breakpoint in order to stop after the exec, even if we use
+# a single-step command to execute past the exec.
+
+if { [is_remote target] || ![isnative] } then {
+ continue
+}
+
+# Until "catch exec" is implemented on other targets...
+#
+if {![istarget "hppa*-hp-hpux*"] && ![istarget "*-linux*"]} then {
+ continue
+}
+
+standard_testfile foll-exec-mode.c
+
+set testfile2 "execd-prog"
+set srcfile2 ${testfile2}.c
+set binfile2 [standard_output_file ${testfile2}]
+
+set compile_options debug
+set dirname [relative_filename [pwd] [file dirname $binfile]]
+lappend compile_options "additional_flags=-DBASEDIR=\"$dirname\""
+
+# build the first test case
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable $compile_options] != "" } {
+ untested foll-exec-mode.exp
+ return -1
+}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $compile_options] != "" } {
+ untested foll-exec-mode.exp
+ return -1
+}
+
+# Test exec catchpoints to ensure exec events are supported.
+#
+proc do_catch_exec_test { } {
+ global testfile
+ global gdb_prompt
+
+ clean_restart $testfile
+
+ # Start the program running, and stop at main.
+ #
+ if ![runto_main] then {
+ fail "Couldn't run ${testfile}"
+ return
+ }
+
+ # Verify that the system supports "catch exec".
+ gdb_test "catch exec" "Catchpoint \[0-9\]* \\(exec\\)" "insert first exec catchpoint"
+ set has_exec_catchpoints 0
+ gdb_test_multiple "continue" "continue to first exec catchpoint" {
+ -re ".*Your system does not support this type\r\nof catchpoint.*$gdb_prompt $" {
+ unsupported "continue to first exec catchpoint"
+ }
+ -re ".*Catchpoint.*$gdb_prompt $" {
+ set has_exec_catchpoints 1
+ pass "continue to first exec catchpoint"
+ }
+ }
+
+ if {$has_exec_catchpoints == 0} {
+ unsupported "exec catchpoints"
+ return
+ }
+}
+
+# Test follow-exec-mode in the specified scenario.
+# MODE determines whether follow-exec-mode is "same" or "new".
+# CMD determines the command used to execute past the exec call.
+# INFSWITCH is ignored for MODE == "same", and for "new" it is
+# used to determine whether to switch to the original inferior
+# before re-running.
+
+proc do_follow_exec_mode_tests { mode cmd infswitch } {
+ global binfile srcfile srcfile2 testfile testfile2
+ global gdb_prompt
+
+ with_test_prefix "$mode,$cmd,$infswitch" {
+ clean_restart $testfile
+
+ # Start the program running, and stop at main.
+ #
+ if ![runto_main] then {
+ fail "Couldn't run ${testfile}"
+ return
+ }
+
+ # Set the follow-exec mode.
+ #
+ gdb_test_no_output "set follow-exec-mode $mode"
+
+ # Run to the line of the exec call.
+ #
+ gdb_breakpoint [gdb_get_line_number "Set breakpoint here"]
+ gdb_continue_to_breakpoint "continue to line of exec call"
+
+ # Set up the output we expect to see after we execute past the exec.
+ #
+ set execd_line [gdb_get_line_number "after-exec" $srcfile2]
+ set expected_re ".*xecuting new program: .*${testfile2}.*Breakpoint .,.*${srcfile2}:${execd_line}.*$gdb_prompt $"
+
+ # Set a breakpoint after the exec call if we aren't single-stepping
+ # past it.
+ #
+ if {$cmd == "continue"} {
+ gdb_breakpoint "$execd_line"
+ }
+
+ # Execute past the exec call.
+ #
+ set test "$cmd past exec"
+ gdb_test_multiple $cmd $test {
+ -re "$expected_re" {
+ pass $test
+ }
+ }
+
+ # Set expected output, given the test parameters.
+ #
+ if {$mode == "same"} {
+ set expected_re "\\* 1.*process.*"
+ } else {
+ set expected_re "\\* 2.*process.*$testfile2 \r\n 1.*null.*$testfile.*"
+ }
+
+ # Check that the inferior list is correct:
+ # - one inferior for MODE == "same"
+ # - two inferiors for MODE == "new", current is execd program
+ #
+ gdb_test "info inferiors" $expected_re "Check inferior list"
+
+ set expected_inf ""
+ if {$mode == "same"} {
+ # One inferior, the execd program.
+ set expected_inf $testfile2
+ } elseif {$infswitch == "infswitch"} {
+ # Two inferiors, we have switched to the original program.
+ set expected_inf $testfile
+ gdb_test "inferior 1" "Switching to inferior 1.*$testfile.*" "Switch inferiors"
+ } else {
+ # Two inferiors, run the execd program
+ set expected_inf $testfile2
+ }
+
+ # Now check that a 'run' command will run the correct inferior.
+ #
+ set test "use correct executable ($expected_inf) for run after follow exec"
+ gdb_run_cmd
+ gdb_test_multiple "" $test {
+ -re {Start it from the beginning\? \(y or n\) $} {
+ send_gdb "y\n"
+ exp_continue
+ }
+ -re "Starting program: .*$expected_inf.*Breakpoint .,.*\r\n$gdb_prompt $" {
+ pass $test
+ }
+ }
+ }
+}
+
+do_catch_exec_test
+
+foreach cmd {"next" "continue"} {
+ foreach mode {"same" "new"} {
+ # Test basic follow-exec-mode.
+ do_follow_exec_mode_tests $mode $cmd "no_infswitch"
+ if {$mode == "new"} {
+ # Test that when we do 'run' we get the correct executable.
+ do_follow_exec_mode_tests $mode $cmd "infswitch"
+ }
+ }
+}
+
+return 0
projects / binutils-gdb.git / commitdiff