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37e4754d LM |
1 | # This testcase is part of GDB, the GNU debugger. |
2 | ||
61baf725 | 3 | # Copyright 2007-2017 Free Software Foundation, Inc. |
37e4754d LM |
4 | |
5 | # This program is free software; you can redistribute it and/or modify | |
6 | # it under the terms of the GNU General Public License as published by | |
7 | # the Free Software Foundation; either version 3 of the License, or | |
8 | # (at your option) any later version. | |
9 | # | |
10 | # This program is distributed in the hope that it will be useful, | |
11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | # GNU General Public License for more details. | |
14 | # | |
15 | # You should have received a copy of the GNU General Public License | |
16 | # along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | # watch-thread_num.exp Test thread <thread_num> parameter for | |
19 | # watch commands. | |
20 | # | |
21 | ||
8e6a5956 UW |
22 | # This test verifies that a watchpoint is detected in the proper thread |
23 | # so the test is only meaningful on a system with hardware watchpoints. | |
63fc80ce AA |
24 | # More specifically, the implementation of this test uses access |
25 | # watchpoints, so skip it when those are not available. | |
26 | if {[skip_hw_watchpoint_access_tests]} { | |
b800ec70 | 27 | return 0 |
8e6a5956 UW |
28 | } |
29 | ||
62cef515 | 30 | standard_testfile .c |
37e4754d LM |
31 | |
32 | # What compiler are we using? | |
33 | # | |
4c93b1db | 34 | if [get_compiler_info] { |
37e4754d LM |
35 | return -1 |
36 | } | |
37 | ||
62172bb9 UW |
38 | if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { |
39 | return -1 | |
37e4754d LM |
40 | } |
41 | ||
62cef515 | 42 | clean_restart ${binfile} |
37e4754d LM |
43 | |
44 | if { ![runto main] } then { | |
45 | fail "run to main" | |
46 | return | |
47 | } | |
48 | ||
cdc7edd7 LM |
49 | gdb_test "watch shared_var thread 0" "Invalid thread ID: 0" "watchpoint on invalid thread" |
50 | gdb_test "watch shared_var thread" "A syntax error in expression, near `thread'\." "invalid watch syntax" | |
37e4754d | 51 | |
a7b796db PA |
52 | set bpexitline [gdb_get_line_number "all threads started"] |
53 | gdb_breakpoint "$bpexitline" | |
54 | gdb_continue_to_breakpoint "all threads started" | |
37e4754d | 55 | |
a7b796db PA |
56 | gdb_test "break loop" "Breakpoint \[0-9\].*" \ |
57 | "Set breakpoint at loop" | |
37e4754d | 58 | |
cdc7edd7 | 59 | gdb_test "continue" ".*Breakpoint .*loop.*" "stopped in loop" |
abc8a88d | 60 | |
de97fdd4 | 61 | gdb_test_multiple "thread" "thread command" { |
02746bbc | 62 | -re ".*Current thread is (\[0-9\]*).*$gdb_prompt $" { |
bc6c7af4 | 63 | pass "thread command" |
02746bbc | 64 | } |
abc8a88d PM |
65 | } |
66 | ||
67 | set thread_num "$expect_out(1,string)" | |
68 | ||
a7b796db | 69 | delete_breakpoints |
abc8a88d | 70 | |
a7b796db PA |
71 | # We use an access watchpoint rather than a write watchpoint, because |
72 | # GDB can drop the latter when multiple threads trigger events | |
73 | # simultaneously, on targets with continuable watchpoints, such as | |
74 | # x86. See PR breakpoints/10116. | |
75 | ||
76 | gdb_test "awatch shared_var thread $thread_num" \ | |
77 | "Hardware access \\(read/write\\) watchpoint .*: shared_var.*" \ | |
bb95117e | 78 | "watchpoint on shared variable" |
a7b796db PA |
79 | |
80 | gdb_test "info breakpoint \$bpnum" \ | |
81 | "stop only in thread $thread_num" \ | |
82 | "info breakpoint shows watchpoint is thread-specific" | |
83 | ||
84 | for {set i 1} {$i <= 5} {incr i} { | |
ac0bb574 NF |
85 | set watchpoint "Watchpoint triggered iteration $i" |
86 | set check "Check thread that triggered iteration $i" | |
87 | ||
a7b796db PA |
88 | set test $watchpoint |
89 | gdb_test_multiple "continue" $test { | |
90 | -re "infrun:" { | |
91 | # Avoid timeouts when debugging GDB. | |
92 | exp_continue | |
93 | } | |
94 | -re "Hardware access \\(read/write\\) watchpoint .*: shared_var.*$gdb_prompt $" { | |
95 | pass $test | |
96 | } | |
97 | } | |
2992cbe0 | 98 | gdb_test "thread" ".*Current thread is $thread_num .*" $check |
37e4754d LM |
99 | } |
100 |