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42a4f53d | 1 | # Copyright 2009-2019 Free Software Foundation, Inc. |
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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 | # This file is part of the gdb testsuite. | |
17 | ||
18 | # Test amd64 displaced stepping. | |
19 | ||
35669430 | 20 | |
add265ae | 21 | if { ![istarget x86_64-*-* ] || ![is_lp64_target] } { |
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22 | verbose "Skipping x86_64 displaced stepping tests." |
23 | return | |
24 | } | |
25 | ||
26 | set newline "\[\r\n\]*" | |
27 | ||
6e8b1ab2 | 28 | set opts {debug nopie} |
de5f37e1 | 29 | standard_testfile .S |
35669430 | 30 | |
6e8b1ab2 | 31 | if { [prepare_for_testing "failed to prepare" $testfile $srcfile $opts] } { |
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32 | return -1 |
33 | } | |
34 | ||
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35 | gdb_test "set displaced-stepping on" "" |
36 | gdb_test "show displaced-stepping" ".* displaced stepping .* is on.*" | |
37 | ||
38 | if ![runto_main] then { | |
bc6c7af4 | 39 | fail "can't run to main" |
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40 | return 0 |
41 | } | |
42 | ||
43 | ########################################## | |
44 | ||
45 | # Test call/ret. | |
46 | ||
47 | gdb_test "break test_call" \ | |
d1e36019 | 48 | "Breakpoint.*at.* file .*$srcfile, line.*" |
35669430 | 49 | gdb_test "break test_call_end" \ |
d1e36019 | 50 | "Breakpoint.*at.* file .*$srcfile, line.*" |
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51 | |
52 | gdb_test "break test_ret" \ | |
d1e36019 | 53 | "Breakpoint.*at.* file .*$srcfile, line.*" |
35669430 | 54 | gdb_test "break test_ret_end" \ |
d1e36019 | 55 | "Breakpoint.*at.* file .*$srcfile, line.*" |
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56 | |
57 | gdb_test "continue" \ | |
58 | "Continuing.*Breakpoint.*, test_call ().*" \ | |
59 | "continue to test_call" | |
60 | gdb_test "continue" \ | |
61 | "Continuing.*Breakpoint.*, test_call_end ().*" \ | |
62 | "continue to test_call_end" | |
63 | ||
64 | gdb_test "continue" \ | |
65 | "Continuing.*Breakpoint.*, test_ret ().*" \ | |
66 | "continue to test_ret" | |
67 | gdb_test "continue" \ | |
68 | "Continuing.*Breakpoint.*, test_ret_end ().*" \ | |
69 | "continue to test_ret_end" | |
70 | ||
71 | ########################################## | |
72 | ||
73 | # Test abs-jmp/rep-ret. | |
74 | ||
75 | gdb_test "break test_abs_jmp" \ | |
d1e36019 | 76 | "Breakpoint.*at.* file .*$srcfile, line.*" |
35669430 | 77 | gdb_test "break test_abs_jmp_end" \ |
d1e36019 | 78 | "Breakpoint.*at.* file .*$srcfile, line.*" |
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79 | |
80 | gdb_test "break test_rep_ret" \ | |
d1e36019 | 81 | "Breakpoint.*at.* file .*$srcfile, line.*" |
35669430 | 82 | gdb_test "break test_rep_ret_end" \ |
d1e36019 | 83 | "Breakpoint.*at.* file .*$srcfile, line.*" |
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84 | |
85 | gdb_test "continue" \ | |
86 | "Continuing.*Breakpoint.*, test_abs_jmp ().*" \ | |
87 | "continue to test_abs_jmp" | |
88 | gdb_test "continue" \ | |
89 | "Continuing.*Breakpoint.*, test_abs_jmp_end ().*" \ | |
90 | "continue to test_abs_jmp_end" | |
91 | ||
92 | gdb_test "continue" \ | |
93 | "Continuing.*Breakpoint.*, test_rep_ret ().*" \ | |
94 | "continue to test_rep_ret" | |
95 | gdb_test "continue" \ | |
96 | "Continuing.*Breakpoint.*, test_rep_ret_end ().*" \ | |
97 | "continue to test_rep_ret_end" | |
98 | ||
99 | ########################################## | |
100 | ||
101 | # Test syscall. | |
102 | ||
103 | gdb_test "break test_syscall" \ | |
d1e36019 | 104 | "Breakpoint.*at.* file .*$srcfile, line.*" |
35669430 | 105 | gdb_test "break test_syscall_end" \ |
d1e36019 | 106 | "Breakpoint.*at.* file .*$srcfile, line.*" |
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107 | |
108 | gdb_test "continue" \ | |
109 | "Continuing.*Breakpoint.*, test_syscall ().*" \ | |
110 | "continue to test_syscall" | |
111 | gdb_test "continue" \ | |
112 | "Continuing.*Breakpoint.*, test_syscall_end ().*" \ | |
113 | "continue to test_syscall_end" | |
114 | ||
115 | ########################################## | |
116 | ||
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117 | # int3 (with prefixes) |
118 | # These don't occur in normal code, but gdb should still DTRT. | |
119 | ||
120 | gdb_test "break test_int3" \ | |
d1e36019 | 121 | "Breakpoint.*at.* file .*$srcfile, line.*" |
1903f0e6 | 122 | gdb_test "break test_int3_end" \ |
d1e36019 | 123 | "Breakpoint.*at.* file .*$srcfile, line.*" |
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124 | |
125 | gdb_test "continue" \ | |
126 | "Continuing.*Breakpoint.*, test_int3 ().*" \ | |
127 | "continue to test_int3" | |
128 | ||
129 | gdb_test "continue" \ | |
130 | "Continuing.*Breakpoint.*, test_int3_end ().*" \ | |
131 | "continue to test_int3_end" | |
132 | ||
133 | ########################################## | |
134 | ||
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135 | # Test rip-relative. |
136 | # GDB picks a spare register to hold the rip-relative address. | |
137 | # Exercise all the possibilities (rax-rdi, sans rsp). | |
138 | ||
139 | # The order must much the order in srcfile. | |
140 | set rip_regs { "rax" "rbx" "rcx" "rdx" "rbp" "rsi" "rdi" } | |
141 | ||
142 | # Assign val to all specified regs. | |
143 | ||
144 | proc set_regs { regs val } { | |
145 | global gdb_prompt | |
146 | ||
147 | foreach reg ${regs} { | |
148 | # Use send_gdb/gdb_expect so that these aren't logged as pass/fail. | |
149 | send_gdb "set \$${reg} = ${val}\n" | |
150 | gdb_expect 10 { | |
151 | -re "$gdb_prompt $" { | |
152 | verbose "Setting ${reg} to ${val}." 2 | |
153 | } | |
154 | timeout { | |
155 | warning "Couldn't set ${reg} to ${val}." | |
156 | } | |
157 | } | |
158 | } | |
159 | } | |
160 | ||
161 | # Verify all REGS equal VAL, except REG which equals REG_VAL. | |
162 | ||
163 | proc verify_regs { test_name regs val except_reg except_reg_val } { | |
164 | global newline | |
165 | ||
166 | foreach reg ${regs} { | |
167 | set expected ${val} | |
168 | if { "${reg}" == "${except_reg}" } { | |
169 | set expected ${except_reg_val} | |
170 | } | |
171 | # The cast to (int) is because RBP is printed as a pointer. | |
172 | gdb_test "p (int) \$${reg}" " = ${expected}${newline}" "${test_name} ${reg} expected value" | |
173 | } | |
174 | } | |
175 | ||
176 | proc rip_test { reg } { | |
177 | global srcfile rip_regs | |
178 | ||
179 | set test_start_label "test_rip_${reg}" | |
180 | set test_end_label "test_rip_${reg}_end" | |
181 | ||
182 | gdb_test "break ${test_start_label}" \ | |
d1e36019 | 183 | "Breakpoint.*at.* file .*$srcfile, line.*" |
35669430 | 184 | gdb_test "break ${test_end_label}" \ |
d1e36019 | 185 | "Breakpoint.*at.* file .*$srcfile, line.*" |
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186 | |
187 | gdb_test "continue" \ | |
188 | "Continuing.*Breakpoint.*, ${test_start_label} ().*" \ | |
189 | "continue to ${test_start_label}" | |
190 | ||
191 | set_regs ${rip_regs} 0 | |
192 | ||
193 | gdb_test "continue" \ | |
194 | "Continuing.*Breakpoint.*, ${test_end_label} ().*" \ | |
195 | "continue to ${test_end_label}" | |
196 | ||
197 | verify_regs "test rip w/${reg}" ${rip_regs} 0 ${reg} 42 | |
198 | } | |
199 | ||
200 | foreach reg ${rip_regs} { | |
201 | rip_test $reg | |
202 | } | |
203 | ||
204 | ########################################## | |
205 | ||
206 | # Done, run program to exit. | |
207 | ||
208 | gdb_continue_to_end "amd64-disp-step" |