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1d506c26 | 1 | # Copyright 2020-2024 Free Software Foundation, Inc. |
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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 | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
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. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | # This test-case tests the scenario for the crash fixed by commit ee3c5f8968 | |
17 | # "Fix GDB crash when registers cannot be modified": | |
18 | # $ valgrind /usr/bin/sleep 10000 | |
19 | # ==31595== Memcheck, a memory error detector | |
20 | # ==31595== Command: /usr/bin/sleep 10000 | |
21 | # ==31595== | |
22 | # $ gdb /usr/bin/sleep | |
23 | # (gdb) target remote | vgdb --pid=31595 | |
24 | # Remote debugging using | vgdb --pid=31595 | |
25 | # ... | |
26 | # $hex in __GI___nanosleep () at nanosleep.c:27 | |
27 | # 27 return SYSCALL_CANCEL (nanosleep, requested_time, remaining); | |
28 | # (gdb) p printf ("bla") | |
29 | # terminate called after throwing an instance of 'gdb_exception_error' | |
30 | # Aborted (core dumped) | |
31 | ||
4f69f0a2 | 32 | # Valgrind gdbserver requires gdb with xml support. |
b963a97f | 33 | require allow_xml_test |
60767909 | 34 | |
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35 | load_lib valgrind.exp |
36 | ||
52c0551e | 37 | require {!is_remote target} |
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38 | |
39 | standard_testfile .c | |
40 | if {[build_executable $testfile.exp $testfile $srcfile {debug}] == -1} { | |
41 | return -1 | |
42 | } | |
43 | ||
44 | set active_at_startup 0 | |
45 | if { [vgdb_start $active_at_startup] == -1 } { | |
46 | return -1 | |
47 | } | |
48 | ||
49 | # Determine whether we're at nanosleep. | |
50 | gdb_test_multiple "bt 1" "do printf" { | |
51 | -re -wrap "nanosleep.*" { | |
52 | # If gdb doesn't crash, we get something like: | |
53 | # (gdb) p printf ("bla") | |
54 | # Could not write register "rdi"; remote failure reply 'E. | |
55 | # ERROR changing register rdi regno 5 | |
56 | # gdb commands changing registers (pc, sp, ...) (e.g. 'jump', | |
57 | # set pc, calling from gdb a function in the debugged process, ...) | |
58 | # can only be accepted if the thread is VgTs_Runnable or VgTs_Yielding | |
59 | # state | |
60 | # Thread status is VgTs_WaitSys | |
61 | # ' | |
62 | # (gdb) | |
c06ad8b5 | 63 | gdb_test "p (int)printf (\"bla\")" \ |
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64 | "can only be accepted if the thread is .*" \ |
65 | $gdb_test_name | |
66 | } | |
67 | -re -wrap "" { | |
68 | # For some reason the error condition does not trigger if we're not | |
69 | # at nanosleep at the point that we're connecting to vgdb. See also | |
70 | # comment at "exec sleep 1" in vgdb_start. | |
71 | unsupported $gdb_test_name | |
72 | } | |
73 | } | |
74 | ||
75 | vgdb_stop |