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0fb0cc75 | 1 | # Copyright 2004, 2007, 2008, 2009 Free Software Foundation, Inc. |
78cef34b AC |
2 | |
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 | |
e22f8b7c | 5 | # the Free Software Foundation; either version 3 of the License, or |
78cef34b | 6 | # (at your option) any later version. |
e22f8b7c | 7 | # |
78cef34b AC |
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. | |
e22f8b7c | 12 | # |
78cef34b | 13 | # You should have received a copy of the GNU General Public License |
e22f8b7c | 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
78cef34b AC |
15 | |
16 | ||
17 | # The program siginfo.c creates a backtrace containing a signal | |
18 | # handler registered using sigaction's sa_sigaction / SA_SIGINFO. | |
19 | # Some OS's (e.g., GNU/Linux) use different signal trampolines for | |
20 | # sa_sigaction and sa_handler. | |
21 | ||
22 | # This test first confirms that GDB can backtrace through the | |
23 | # alternative sa_sigaction signal handler, and second that GDB can | |
24 | # nexti/stepi out of such a handler. | |
25 | ||
26 | if [target_info exists gdb,nosignals] { | |
27 | verbose "Skipping signals.exp because of nosignals." | |
28 | continue | |
29 | } | |
30 | ||
31 | if $tracelevel then { | |
32 | strace $tracelevel | |
33 | } | |
34 | ||
35 | set prms_id 0 | |
36 | set bug_id 0 | |
37 | ||
38 | set testfile siginfo | |
39 | set srcfile ${testfile}.c | |
40 | set binfile ${objdir}/${subdir}/${testfile} | |
41 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
ef783a7d | 42 | untested "Couldn't compile ${srcfile}.c" |
78cef34b AC |
43 | return -1 |
44 | } | |
45 | ||
46 | # get things started | |
47 | gdb_exit | |
48 | gdb_start | |
49 | gdb_reinitialize_dir $srcdir/$subdir | |
50 | gdb_load ${binfile} | |
51 | ||
52 | gdb_test "display/i \$pc" | |
53 | ||
54 | # Advance to main | |
55 | if { ![runto_main] } then { | |
56 | gdb_suppress_tests; | |
57 | } | |
58 | ||
59 | # Pass all the alarms straight through (but verbosely) | |
60 | # gdb_test "handle SIGALRM print pass nostop" | |
61 | # gdb_test "handle SIGVTALRM print pass nostop" | |
62 | # gdb_test "handle SIGPROF print pass nostop" | |
63 | ||
64 | # Run to the signal handler, validate the backtrace. | |
65 | gdb_test "break handler" | |
66 | gdb_test "continue" ".* handler .*" "continue to stepi handler" | |
67 | send_gdb "bt\n" | |
68 | gdb_expect_list "backtrace for nexti" ".*$gdb_prompt $" { | |
69 | "\[\r\n\]+.0 \[^\r\n\]* handler " | |
70 | "\[\r\n\]+.1 .signal handler called." | |
71 | "\[\r\n\]+.2 \[^\r\n\]* main .*" | |
72 | } | |
73 | ||
74 | # Check that GDB can step the inferior back to main | |
75 | set test "step out of handler" | |
76 | gdb_test_multiple "step" "${test}" { | |
8608915f MK |
77 | -re "Could not insert single-step breakpoint.*$gdb_prompt $" { |
78 | setup_kfail sparc*-*-openbsd* gdb/1736 | |
79 | fail "$test (could not insert single-step breakpoint)" | |
80 | } | |
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81 | -re "done = 1;.*${gdb_prompt} $" { |
82 | send_gdb "$i\n" | |
83 | exp_continue | |
84 | } | |
85 | -re "\} .. handler .*${gdb_prompt} $" { | |
86 | send_gdb "step\n" | |
87 | exp_continue | |
88 | } | |
61bcae62 AC |
89 | -re "Program exited normally.*${gdb_prompt} $" { |
90 | kfail gdb/1613 "$test (program exited)" | |
91 | } | |
92 | -re "(while ..done|return 0).*${gdb_prompt} $" { | |
93 | # After stepping out of a function /r signal-handler, GDB will | |
94 | # advance the inferior until it is at the first instruction of | |
95 | # a code-line. While typically things return to the middle of | |
96 | # the "while..." (and hence GDB advances the inferior to the | |
97 | # "return..." line) it is also possible for the return to land | |
98 | # on the first instruction of "while...". Accept both cases. | |
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99 | pass "$test" |
100 | } | |
101 | } |