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1d506c26 | 1 | # Copyright 2004-2024 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 | # |
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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/>. |
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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 | ||
450d26c8 | 26 | require {!target_info exists gdb,nosignals} |
78cef34b | 27 | |
78cef34b | 28 | |
0ab77f5f TT |
29 | standard_testfile |
30 | ||
5b362f04 | 31 | if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} { |
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32 | return -1 |
33 | } | |
34 | ||
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35 | gdb_test "display/i \$pc" |
36 | ||
37 | # Advance to main | |
65a33d75 | 38 | if {![runto_main]} { |
c8ee3f04 | 39 | return 0 |
78cef34b AC |
40 | } |
41 | ||
42 | # Pass all the alarms straight through (but verbosely) | |
43 | # gdb_test "handle SIGALRM print pass nostop" | |
44 | # gdb_test "handle SIGVTALRM print pass nostop" | |
45 | # gdb_test "handle SIGPROF print pass nostop" | |
46 | ||
47 | # Run to the signal handler, validate the backtrace. | |
48 | gdb_test "break handler" | |
49 | gdb_test "continue" ".* handler .*" "continue to stepi handler" | |
5fa290c1 | 50 | gdb_test_sequence "bt" "backtrace for nexti" { |
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51 | "\[\r\n\]+.0 \[^\r\n\]* handler " |
52 | "\[\r\n\]+.1 .signal handler called." | |
5fa290c1 | 53 | "\[\r\n\]+.2 \[^\r\n\]* main " |
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54 | } |
55 | ||
56 | # Check that GDB can step the inferior back to main | |
57 | set test "step out of handler" | |
58 | gdb_test_multiple "step" "${test}" { | |
8608915f | 59 | -re "Could not insert single-step breakpoint.*$gdb_prompt $" { |
a5b6e449 | 60 | setup_kfail gdb/8841 sparc*-*-openbsd* |
8608915f MK |
61 | fail "$test (could not insert single-step breakpoint)" |
62 | } | |
03346981 SL |
63 | -re "Cannot insert breakpoint.*Cannot access memory.*$gdb_prompt $" { |
64 | setup_kfail gdb/8841 "nios2*-*-linux*" | |
65 | fail "$test (could not insert single-step breakpoint)" | |
66 | } | |
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67 | -re "done = 1;.*${gdb_prompt} $" { |
68 | send_gdb "$i\n" | |
69 | exp_continue | |
70 | } | |
71 | -re "\} .. handler .*${gdb_prompt} $" { | |
72 | send_gdb "step\n" | |
73 | exp_continue | |
74 | } | |
fda326dd | 75 | -re "$inferior_exited_re normally.*${gdb_prompt} $" { |
61bcae62 AC |
76 | kfail gdb/1613 "$test (program exited)" |
77 | } | |
78 | -re "(while ..done|return 0).*${gdb_prompt} $" { | |
79 | # After stepping out of a function /r signal-handler, GDB will | |
80 | # advance the inferior until it is at the first instruction of | |
81 | # a code-line. While typically things return to the middle of | |
82 | # the "while..." (and hence GDB advances the inferior to the | |
83 | # "return..." line) it is also possible for the return to land | |
84 | # on the first instruction of "while...". Accept both cases. | |
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85 | pass "$test" |
86 | } | |
87 | } |