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e2882c85 | 1 | # Copyright 2014-2018 Free Software Foundation, Inc. |
483805cf PA |
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 | # | |
17 | # Regression test for a bug where GDB would internal error if a thread | |
18 | # runs into a breakpoint that needs stepping over, just after stepping | |
19 | # over another breakpoint, without a user visible stop in between. | |
20 | # | |
21 | standard_testfile | |
22 | ||
23 | if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} { | |
24 | return -1 | |
25 | } | |
26 | ||
27 | if ![runto_main] then { | |
bc6c7af4 | 28 | fail "can't run to main" |
483805cf PA |
29 | return 0 |
30 | } | |
31 | ||
32 | # Make sure the target doesn't hide the breakpoint hits (that don't | |
33 | # cause a user visible stop) from GDB. | |
34 | gdb_test_no_output "set breakpoint condition-evaluation host" | |
35 | ||
36 | set up_to_nl "\[^\r\n\]+\[\r\n\]+" | |
37 | ||
38 | # Number of consecutive breakpoints in a row to try. | |
39 | set n_insns 3 | |
40 | ||
41 | # Extract addresses of a few consecutive instructions. | |
42 | set test "get breakpoint addresses" | |
43 | if { [gdb_test_multiple "x /[expr $n_insns + 1]i \$pc" $test { | |
44 | -re "=> $hex${up_to_nl} ($hex)${up_to_nl} ($hex)${up_to_nl} ($hex)${up_to_nl}$gdb_prompt $" { | |
45 | for {set i 1} {$i <= $n_insns} {incr i} { | |
46 | set bp_addrs($i) $expect_out($i,string) | |
47 | } | |
48 | pass $test | |
49 | } | |
50 | }] != 0 } { | |
51 | # No use proceeding if bp_addrs wasn't set. | |
52 | return | |
53 | } | |
54 | ||
55 | for {set i 1} {$i <= $n_insns} {incr i} { | |
56 | with_test_prefix "insn $i" { | |
57 | gdb_test "break \*$bp_addrs($i)" \ | |
58 | "Breakpoint $decimal at $bp_addrs($i): file .*" \ | |
59 | "set breakpoint" | |
60 | ||
61 | # Give the breakpoint a condition that always fails, so that | |
62 | # the thread is immediately re-resumed. | |
63 | gdb_test_no_output "condition \$bpnum condition" \ | |
64 | "set condition" | |
65 | } | |
66 | } | |
67 | ||
68 | set lineno [gdb_get_line_number "break here"] | |
69 | gdb_breakpoint $lineno | |
70 | gdb_continue_to_breakpoint "break here" ".*break here.*" |