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42a4f53d | 1 | # Copyright 2017-2019 Free Software Foundation, Inc. |
2039d74e EBM |
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 | |
1cc75e92 | 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
2039d74e EBM |
15 | # |
16 | # This file is part of the gdb testsuite. | |
17 | ||
18 | # Test single stepping through POWER8/ISA 2.07 atomic sequences beginning with | |
19 | # a lbarx/lharx/lqarx instruction and ending with a stbcx/sthcx/stqxc | |
20 | # instruction. Note that although lbarx, lharx, stbcx and sthcx instructions | |
21 | # were introduced in ISA 2.06, they were implemented only in POWER8 (ISA 2.07). | |
22 | ||
23 | ||
24 | if {![istarget "powerpc*"] || ![is_lp64_target]} { | |
25 | untested "skipping powerpc isa 207 atomic sequences test" | |
26 | return | |
27 | } | |
28 | ||
29 | standard_testfile .c .S | |
30 | ||
31 | if { [prepare_for_testing "failed to prepare" $testfile "$srcfile $srcfile2" \ | |
32 | {debug quiet}] } { | |
33 | return -1 | |
34 | } | |
35 | ||
36 | # The test proper. DISPLACED is true if we should try with displaced | |
37 | # stepping. | |
38 | ||
39 | proc do_test { displaced } { | |
40 | global decimal hex | |
41 | global gdb_prompt inferior_exited_re srcfile srcfile2 | |
42 | ||
43 | if ![runto_main] then { | |
44 | untested "could not run to main" | |
45 | return -1 | |
46 | } | |
47 | ||
48 | gdb_test_no_output "set displaced-stepping $displaced" | |
49 | ||
50 | gdb_breakpoint "test_atomic_sequences" "Breakpoint $decimal at $hex" \ | |
51 | "set the breakpoint at the start of the test function" | |
52 | ||
53 | gdb_test_multiple "continue" "Continue until lbarx/stbcx start breakpoint" { | |
54 | -re "$inferior_exited_re with code 01.\[\r\n\]+$gdb_prompt $" { | |
55 | unsupported "POWER8/ISA 2.07 atomic instructions not supported." | |
56 | return -1 | |
57 | } | |
58 | -re "Continuing.*Breakpoint $decimal.*$gdb_prompt $" { | |
59 | pass "continue until test_atomic_sequences function" | |
60 | } | |
61 | } | |
62 | ||
63 | set bp1 [gdb_get_line_number "lbarx" "$srcfile2"] | |
64 | gdb_breakpoint "$bp1" "Breakpoint $decimal at $hex" \ | |
65 | "set the breakpoint at the start of the lbarx/stbcx sequence" | |
66 | ||
67 | set bp2 [gdb_get_line_number "lharx" "$srcfile2"] | |
68 | gdb_breakpoint "$bp2" "Breakpoint $decimal at $hex" \ | |
69 | "set the breakpoint at the start of the lharx/sthcx sequence" | |
70 | ||
71 | set bp3 [gdb_get_line_number "lqarx" "$srcfile2"] | |
72 | gdb_breakpoint "$bp3" "Breakpoint $decimal at $hex" \ | |
73 | "set the breakpoint at the start of the lqarx/stqcx sequence" | |
74 | ||
75 | gdb_test continue "Continuing.*Breakpoint $decimal.*" \ | |
76 | "continue until lbarx/stbcx start breakpoint" | |
77 | ||
78 | gdb_test nexti "bne.*1b" \ | |
79 | "step through the lbarx/stbcx sequence" | |
80 | ||
81 | gdb_test continue "Continuing.*Breakpoint $decimal.*" \ | |
82 | "continue until lharx/sthcx start breakpoint" | |
83 | ||
84 | gdb_test nexti "bne.*2b" \ | |
85 | "step through the lharx/sthcx sequence" | |
86 | ||
87 | gdb_test continue "Continuing.*Breakpoint $decimal.*" \ | |
88 | "continue until ldqrx/stqcx start breakpoint" | |
89 | ||
90 | gdb_test nexti "bne.*3b" \ | |
91 | "step through the lqarx/stqcx sequence" | |
92 | } | |
93 | ||
94 | foreach displaced { "off" "on" } { | |
95 | with_test_prefix "displaced=$displaced" { | |
96 | do_test $displaced | |
97 | } | |
98 | } |