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ecd75fc8 | 1 | # Copyright (C) 2012-2014 Free Software Foundation, Inc. |
f94363d7 AP |
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 | |
7785b880 | 5 | # the Free Software Foundation; either version 3 of the License, or |
f94363d7 AP |
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 | |
7785b880 | 14 | # along with this program; if not, see <http://www.gnu.org/licenses/>. |
f94363d7 AP |
15 | |
16 | # Test single-step on bbit. | |
17 | ||
18 | if ![istarget "*octeon*"] { | |
19 | return -1 | |
20 | } | |
21 | ||
22 | proc current_insn {} { | |
23 | global gdb_prompt | |
24 | ||
25 | send_gdb "x/i \$pc\n" | |
26 | gdb_expect { | |
27 | -re ".*?:\\s+\(.*?\)\\s*$gdb_prompt $" { | |
28 | set insn $expect_out(1,string) | |
29 | return $insn | |
30 | } | |
31 | } | |
32 | return "" | |
33 | } | |
34 | ||
35 | proc single_step {} { | |
36 | global gdb_prompt | |
37 | ||
38 | send_gdb "si\n" | |
39 | gdb_expect { | |
40 | -re "$gdb_prompt \$" { | |
41 | return 1 | |
42 | } | |
43 | } | |
ae59b1da | 44 | return 0 |
f94363d7 AP |
45 | } |
46 | ||
47 | proc single_step_until { match } { | |
48 | global timeout | |
49 | ||
50 | set insn [current_insn] | |
51 | set start [timestamp] | |
52 | while { $insn != "" && [timestamp] - $start < 3*$timeout } { | |
53 | if [regexp $match $insn] { | |
54 | return 1 | |
55 | } | |
56 | if {![single_step]} { | |
57 | return 0 | |
58 | } | |
59 | set insn [current_insn] | |
60 | } | |
ae59b1da | 61 | return 0 |
f94363d7 AP |
62 | } |
63 | ||
64 | proc test_bbit { name taken } { | |
65 | if {![single_step_until "bbit"]} { | |
66 | fail "$name single-step until bbit" | |
67 | return | |
68 | } | |
69 | pass "$name single-step until bbit" | |
70 | gdb_test "si" "" "$name single-step on bbit" | |
71 | if [regexp "li\\s+\[sv\]0,$taken" [current_insn]] { | |
72 | pass "$name check insn after bbit" | |
73 | } else { | |
74 | send_log "expected: li\\s+\[sv\]0,$taken found [current_insn]\n" | |
75 | fail "$name check insn after bbit" | |
76 | } | |
77 | } | |
78 | ||
79 | set testfile "mips-octeon-bbit" | |
80 | set srcfile ${testfile}.c | |
81 | set binfile ${objdir}/${subdir}/${testfile} | |
82 | ||
83 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable \ | |
84 | {debug nowarnings}] != "" } { | |
85 | fail "compilation" | |
86 | return | |
87 | } | |
88 | ||
89 | pass "compilation" | |
90 | ||
91 | gdb_exit | |
92 | gdb_start | |
93 | gdb_reinitialize_dir $srcdir/$subdir | |
94 | gdb_load ${binfile} | |
95 | # Native needs run. | |
96 | runto_main | |
97 | ||
98 | set tests "" | |
99 | foreach n [list "0_10" "0_36" "1_20" "1_49"] { | |
100 | lappend tests "bbit_is_taken_$n" | |
101 | } | |
102 | foreach func $tests { | |
103 | gdb_test "break $func" "Breakpoint.*at.*" "set breakpoint on $func" | |
104 | } | |
105 | ||
106 | foreach func $tests { | |
107 | gdb_test "continue" "Continuing.*Breakpoint.*$func.*" "hit $func first" | |
108 | test_bbit "$func branch taken" 1 | |
109 | gdb_test "continue" "Continuing.*Breakpoint.*$func.*" "hit $func second" | |
110 | test_bbit "$func branch not taken" 0 | |
111 | } |