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1d506c26 | 1 | # Copyright 2021-2024 Free Software Foundation, Inc. |
e3d528d7 WS |
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 | # Test to confirm that gdb is properly single stepping over the | |
18 | # displaced addpcis instruction. | |
19 | # The addpcis instruction and its extended mnemonics lnia and subpcis | |
20 | # apply an immediate shifted value (X || 0x0000) to the current PC/NIA | |
21 | # value, and store that value into the instructions target register. | |
22 | # When the instruction is displaced, it needs special handling. | |
23 | ||
24 | # lnia Rx == addpcis Rx,0 | |
25 | # subcis Rx,value == addpcis Rx,-value | |
26 | ||
73c06197 | 27 | require {istarget powerpc*-*} |
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28 | |
29 | set retval 0 | |
30 | ||
31 | standard_testfile .s | |
32 | ||
33 | if { [prepare_for_testing "failed to prepare" $testfile "$srcfile" \ | |
34 | {debug quiet}] } { | |
35 | return -1 | |
36 | } | |
37 | ||
75b6f386 | 38 | if {![runto_main]} { |
e3d528d7 WS |
39 | return |
40 | } | |
41 | ||
42 | set check_pc [get_hexadecimal_valueof "\$pc" "default0"] | |
43 | set bp1 *$check_pc+4 | |
44 | set bp2 *$check_pc+12 | |
45 | set bp3 *$check_pc+16 | |
46 | gdb_breakpoint $bp1 | |
47 | gdb_breakpoint $bp2 | |
48 | gdb_breakpoint $bp3 | |
49 | ||
d74dfa8f TV |
50 | set insn_supported 1 |
51 | gdb_test_multiple "stepi" "set r3" { | |
52 | -re "Program received signal SIGILL, Illegal instruction\\..*" { | |
53 | set insn_supported 0 | |
54 | } | |
55 | -re -wrap "" { | |
56 | pass $gdb_test_name | |
57 | } | |
58 | } | |
59 | if { ! $insn_supported } { | |
60 | unsupported "illegal instruction" | |
61 | return | |
62 | } | |
e3d528d7 WS |
63 | set check_r3 [get_hexadecimal_valueof "\$r3" "default0"] |
64 | gdb_test "stepi" "" "set r4" | |
65 | set check_r4 [get_hexadecimal_valueof "\$r4" "default0"] | |
66 | gdb_test "stepi" "" "set r5" | |
67 | set check_r5 [get_hexadecimal_valueof "\$r5" "default0"] | |
68 | gdb_test "stepi" "" "set r6" | |
69 | set check_r6 [get_hexadecimal_valueof "\$r6" "default0"] | |
70 | gdb_test "stepi" "" "set r7" | |
71 | set check_r7 [get_hexadecimal_valueof "\$r7" "default0"] | |
72 | gdb_test "stepi" "" "set r8" | |
73 | set check_r8 [get_hexadecimal_valueof "\$r8" "default0"] | |
74 | gdb_test "stepi" "" "set r9" | |
75 | set check_r9 [get_hexadecimal_valueof "\$r9" "default0"] | |
76 | ||
77 | # R6 will contain the reference value. All other | |
78 | # instructions in this test will be storing values | |
79 | # relative to what is stored in R6. | |
80 | ||
81 | # subpcis 3,+0x100 # /* set r3 */ | |
82 | # subpcis 4,+0x10 # /* set r4 */ | |
83 | # subpcis 5,+0x1 # /* set r5 */ | |
84 | # lnia 6 # /* set r6 */ | |
85 | # addpcis 7,+0x1 # /* set r7 */ | |
86 | # addpcis 8,+0x10 # /* set r8 */ | |
87 | # addpcis 9,+0x100 # /* set r9 */ | |
88 | ||
89 | if [expr $check_r3 + 0x1000000 != $check_r6 - 0xc ] { | |
90 | fail "unexpected value r3 + 0x1,000,000 != r6 + 0xc ; r3: $check_r3 r6: $check_r6 " | |
91 | } | |
92 | if [expr $check_r4 + 0x100000 != $check_r6 - 0x8 ] { | |
93 | fail "unexpected value r4 + 0x100,000 != r6 - 0x8 ; r4: $check_r4 r6: $check_r6 " | |
94 | } | |
95 | if [expr $check_r5 + 0x10000 != $check_r6 - 0x4 ] { | |
96 | fail "unexpected value r5 + 0x10,000 != r6 , r5: $check_r5 r6: $check_r6 " | |
97 | } | |
98 | if [expr $check_r6 != $check_r6] { | |
99 | fail "unexpected value r6 != r6 , r6: $check_r6 r6: $check_r6 " | |
100 | } | |
101 | if [expr $check_r7 - 0x10000 != $check_r6 + 0x4] { | |
102 | fail "unexpected value r7 - 0x10,000 != r6 + 0x4 , r7: $check_r7 r7: $check_r6 " | |
103 | } | |
104 | if [expr $check_r8 - 0x100000 != $check_r6 + 0x8 ] { | |
105 | fail "unexpected value r8 - 0x100,000 != r6 , r8: $check_r8 r8: $check_r6 " | |
106 | } | |
107 | if [expr $check_r9 - 0x1000000 != $check_r6 + 0xc ] { | |
108 | fail "unexpected value r9 - 0x1,000,000 != r6 + 0xc , r9: $check_r9 r6: $check_r6 " | |
109 | } | |
110 | ||
111 | gdb_test "info break" | |
112 | gdb_test "info register r3 r4 r5 r6 r7 r8 r9" | |
113 | gdb_test "disas main" | |
114 |