1 # Copyright 2004 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 2 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program; if not, write to the Free Software
15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 # The program sigaltstack.c creates a backtrace containing nested
19 # signal handlers on an alternative stack. This in turn leads to a
20 # non-contiguous (and possibly non-monotonic) backtrace - stack
21 # address jump at the normal-alt stack boundary.
23 # This test confirms that GDB can both backtrace through and finish
26 if [target_info exists gdb,nosignals] {
27 verbose "Skipping signals.exp because of nosignals."
38 set testfile sigaltstack
39 set srcfile ${testfile}.c
40 set binfile ${objdir}/${subdir}/${testfile}
41 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
42 untested "Couldn't compile ${module}.c"
49 gdb_reinitialize_dir $srcdir/$subdir
52 # Pass all the alarms straight through (but verbosely)
53 gdb_test "handle SIGALRM print pass nostop"
54 gdb_test "handle SIGVTALRM print pass nostop"
55 gdb_test "handle SIGPROF print pass nostop"
58 if { ![runto_main] } then {
62 # Stop in handle, when at the inner most level
63 gdb_test "break catcher if level == INNER"
64 gdb_test "continue" ".* catcher .*" "continue to catch"
65 # step off the assignment
70 gdb_expect_list "backtrace" ".*$gdb_prompt $" {
71 "\[\r\n\]+.0 \[^\r\n\]* catcher "
72 "\[\r\n\]+.1 .signal handler called."
73 "\[\r\n\]+.2 \[^\r\n\]* thrower .next_level=INNER"
74 "\[\r\n\]+.3 \[^\r\n\]* catcher "
75 "\[\r\n\]+.4 .signal handler called."
76 "\[\r\n\]+.5 \[^\r\n\]* thrower .next_level=OUTER"
77 "\[\r\n\]+.6 \[^\r\n\]* catcher "
78 "\[\r\n\]+.7 \[^\r\n\]* main .*"
81 proc finish_test { pattern msg } {
84 gdb_test_multiple "finish" $msg {
85 -re "Cannot insert breakpoint 0.*${gdb_prompt} $" {
86 # Some platforms use a special read-only page for signal
87 # trampolines. We can't set a breakpoint there, and we
88 # don't gracefully fall back to single-stepping.
89 setup_kfail "i?86-*-linux*" gdb/1736
90 setup_kfail "*-*-openbsd*" gdb/1736
91 fail "$msg (could not set breakpoint)"
93 -re "$pattern.*${gdb_prompt} $" {
100 finish_test "signal handler called." "finish from catch LEAF"
101 finish_test "thrower .next_level=INNER, .*" "finish to throw INNER"
102 finish_test "catcher .*" "finish to catch INNER"
103 finish_test "signal handler called.*" "finish from catch INNER"
104 finish_test "thrower .next_level=OUTER, .*" "finish to OUTER"
105 finish_test "catcher .*" "finish to catch MAIN"
106 finish_test "main .*" "finish to MAIN"