1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
# Copyright (C) 2011-2016 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
standard_testfile .s
set opts {}
if [info exists COMPILE] {
# make check RUNTESTFLAGS="gdb.arch/amd64-entry-value.exp COMPILE=1"
set srcfile ${testfile}.cc
lappend opts debug optimize=-O2
} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
verbose "Skipping amd64-entry-value."
return
}
if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} $opts] } {
return -1
}
if ![runto_main] {
return -1
}
gdb_breakpoint "breakhere"
gdb_breakpoint "breakhere_locexpr"
gdb_breakpoint "stacktest"
gdb_breakpoint "breakhere_stacktest"
gdb_breakpoint "different"
gdb_breakpoint "breakhere_different"
gdb_breakpoint "breakhere_validity"
gdb_breakpoint "breakhere_invalid"
gdb_breakpoint "reference"
gdb_breakpoint "breakhere_reference"
# Test @entry values for register passed parameters.
gdb_continue_to_breakpoint "entry: breakhere"
gdb_test "bt" "^bt\r\n#0 +d *\\(i=31, i@entry=30, j=31\\.5, j@entry=30\\.5\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main .*" \
"entry: bt"
gdb_test "p i" " = 31" "entry: p i"
gdb_test "p i@entry" " = 30" "entry: p i@entry"
gdb_test "p j" { = 31\.5} "entry: p j"
gdb_test "p j@entry" { = 30\.5} "entry: p j@entry"
# Test @entry values when parameter in function is locexpr (and not loclist).
gdb_continue_to_breakpoint "entry_locexpr: breakhere_locexpr"
gdb_test "p i" " = 30" "entry_locexpr: p i"
gdb_test_no_output "set variable i = 0" "entry_locexpr: set variable i = 0"
gdb_test "bt" "^bt\r\n#0 +locexpr *\\(i=0, i@entry=30\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main .*" \
"entry_locexpr: bt"
# Test @entry values for stack passed parameters.
gdb_continue_to_breakpoint "entry_stack: stacktest"
gdb_test "bt" "^bt\r\n#0 +stacktest *\\(r1=r1@entry=1, r2=r2@entry=2, \[^\r\n\]+, s1=s1@entry=11, s2=s2@entry=12, \[^\r\n\]+, d9=d9@entry=11\\.5, da=da@entry=12\\.5\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main .*" \
"entry_stack: bt at entry"
gdb_continue_to_breakpoint "entry_stack: breakhere_stacktest"
gdb_test "bt" "^bt\r\n#0 +stacktest *\\(r1=r1@entry=1, r2=r2@entry=2, \[^\r\n\]+, s1=3, s1@entry=11, s2=4, s2@entry=12, \[^\r\n\]+, d9=3\\.5, d9@entry=11\\.5, da=4\\.5, da@entry=12\\.5\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main .*" \
"entry_stack: bt"
gdb_test "p s1" " = 3" "entry_stack: p s1"
gdb_test "p s1@entry" " = 11" "entry_stack: p s1@entry"
gdb_test "p s2" " = 4" "entry_stack: p s2"
gdb_test "p s2@entry" " = 12" "entry_stack: p s2@entry"
gdb_test "p d9" " = 3\\.5" "entry_stack: p d9"
gdb_test "p d9@entry" " = 11\\.5" "entry_stack: p d9@entry"
gdb_test "p da" " = 4\\.5" "entry_stack: p da"
gdb_test "p da@entry" " = 12\\.5" "entry_stack: p da@entry"
# Test various kinds of `set print entry-values'.
gdb_continue_to_breakpoint "entry_equal: breakhere"
gdb_test_no_output "set print entry-values no" "entry_equal: set print entry-values no"
gdb_test "frame" {\(val=5\).*} "entry_equal: frame: no"
gdb_test_no_output "set print entry-values only" "entry_equal: set print entry-values only"
gdb_test "frame" {\(val@entry=5\).*} "entry_equal: frame: only"
gdb_test_no_output "set print entry-values preferred" "entry_equal: set print entry-values preferred"
gdb_test "frame" {\(val@entry=5\).*} "entry_equal: frame: preferred"
gdb_test_no_output "set print entry-values if-needed" "entry_equal: set print entry-values if-needed"
gdb_test "frame" {\(val=5\).*} "entry_equal: frame: if-needed"
gdb_test_no_output "set print entry-values both" "entry_equal: set print entry-values both"
gdb_test "frame" {\(val=5, val@entry=5\).*} "entry_equal: frame: both"
gdb_test_no_output "set print entry-values compact" "entry_equal: set print entry-values compact"
gdb_test "frame" {\(val=val@entry=5\).*} "entry_equal: frame: compact"
gdb_test_no_output "set print entry-values default" "entry_equal: set print entry-values default"
gdb_test "frame" {\(val=val@entry=5\).*} "entry_equal: frame: default"
gdb_continue_to_breakpoint "entry_different: breakhere"
gdb_test_no_output "set print entry-values no" "entry_different: set print entry-values no"
gdb_test "frame" {\(val=6\).*} "entry_different: frame: no"
gdb_test_no_output "set print entry-values only" "entry_different: set print entry-values only"
gdb_test "frame" {\(val@entry=5\).*} "entry_different: frame: only"
gdb_test_no_output "set print entry-values preferred" "entry_different: set print entry-values preferred"
gdb_test "frame" {\(val@entry=5\).*} "entry_different: frame: preferred"
gdb_test_no_output "set print entry-values if-needed" "entry_different: set print entry-values if-needed"
gdb_test "frame" {\(val=6\).*} "entry_different: frame: if-needed"
gdb_test_no_output "set print entry-values both" "entry_different: set print entry-values both"
gdb_test "frame" {\(val=6, val@entry=5\).*} "entry_different: frame: both"
gdb_test_no_output "set print entry-values compact" "entry_different: set print entry-values compact"
gdb_test "frame" {\(val=6, val@entry=5\).*} "entry_different: frame: compact"
gdb_test_no_output "set print entry-values default" "entry_different: set print entry-values default"
gdb_test "frame" {\(val=6, val@entry=5\).*} "entry_different: frame: default"
gdb_continue_to_breakpoint "entry_validity: breakhere"
gdb_test_no_output "set print entry-values no" "entry_validity: set print entry-values no"
gdb_test "frame" {\(lost=<optimized out>, born=10\).*} "entry_validity: frame: no"
gdb_test_no_output "set print entry-values only" "entry_validity: set print entry-values only"
gdb_test "frame" {\(lost@entry=5, born@entry=<optimized out>\).*} "entry_validity: frame: only"
gdb_test_no_output "set print entry-values preferred" "entry_validity: set print entry-values preferred"
gdb_test "frame" {\(lost@entry=5, born=10\).*} "entry_validity: frame: preferred"
gdb_test_no_output "set print entry-values if-needed" "entry_validity: set print entry-values if-needed"
gdb_test "frame" {\(lost@entry=5, born=10\).*} "entry_validity: frame: if-needed"
gdb_test_no_output "set print entry-values both" "entry_validity: set print entry-values both"
gdb_test "frame" {\(lost=<optimized out>, lost@entry=5, born=10, born@entry=<optimized out>\).*} "entry_validity: frame: both"
gdb_test_no_output "set print entry-values compact" "entry_validity: set print entry-values compact"
gdb_test "frame" {\(lost@entry=5, born=10\).*} "entry_validity: frame: compact"
gdb_test_no_output "set print entry-values default" "entry_validity: set print entry-values default"
gdb_test "frame" {\(lost=<optimized out>, lost@entry=5, born=10\).*} "entry_validity: frame: default"
gdb_continue_to_breakpoint "entry_invalid: breakhere"
gdb_test_no_output "set print entry-values no" "entry_invalid: set print entry-values no"
gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: no"
gdb_test_no_output "set print entry-values only" "entry_invalid: set print entry-values only"
gdb_test "frame" {\(inv@entry=<optimized out>\).*} "entry_invalid: frame: only"
gdb_test_no_output "set print entry-values preferred" "entry_invalid: set print entry-values preferred"
gdb_test "frame" {\(inv@entry=<optimized out>\).*} "entry_invalid: frame: preferred"
gdb_test_no_output "set print entry-values if-needed" "entry_invalid: set print entry-values if-needed"
gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: if-needed"
gdb_test_no_output "set print entry-values both" "entry_invalid: set print entry-values both"
gdb_test "frame" {\(inv=<optimized out>, inv@entry=<optimized out>\).*} "entry_invalid: frame: both"
gdb_test_no_output "set print entry-values compact" "entry_invalid: set print entry-values compact"
gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: compact"
gdb_test_no_output "set print entry-values default" "entry_invalid: set print entry-values default"
gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: default"
# Test @entry values for DW_AT_GNU_call_site_data_value parameters.
gdb_continue_to_breakpoint "entry_reference: reference"
# GCC PR debug/49980: Missing stackparam1@entry and stackparam2@entry.
gdb_test "bt" "#0 +reference \\(regparam=regparam@entry=@0x\[0-9a-f\]+: 1, nodataparam=@0x\[0-9a-f\]+: 2, \[^\r\n\]+, stackparam1=@0x\[0-9a-f\]+: 11, stackparam2=@0x\[0-9a-f\]+: 12\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main \\(\\) \[^\r\n\]*" \
"entry_reference: bt at entry"
gdb_continue_to_breakpoint "entry_reference: breakhere_reference"
# GCC PR debug/49980: Missing stackparam1@entry and stackparam2@entry.
gdb_test "bt" "#0 +reference \\(regparam=@0x\[0-9a-f\]+: 21, regparam@entry=@0x\[0-9a-f\]+: 1, nodataparam=@0x\[0-9a-f\]+: 22, \[^\r\n\]+, stackparam1=@0x\[0-9a-f\]+: 31, stackparam2=@0x\[0-9a-f\]+: 32\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main \\(\\) \[^\r\n\]*" \
"entry_reference: bt"
gdb_test "ptype regparam" " = int &" "entry_reference: ptype regparam"
set test "entry_reference: p regparam"
set addr ""
gdb_test_multiple "p regparam" $test {
-re " = \\(int &\\) @(0x\[0-9a-f\]+): 21\r\n$gdb_prompt $" {
set addr $expect_out(1,string)
pass $test
}
}
gdb_test "ptype regparam@entry" " = int &" "entry_reference: ptype regparam@entry"
gdb_test "p regparam@entry" " = \\(int &\\) @$addr: 1" "entry_reference: p regparam@entry"
gdb_test "p ®param@entry" " = \\(int \\*\\) $addr" "entry_reference: p ®param@entry"
gdb_test "p regcopy" " = 1" "entry_reference: p regcopy"
gdb_test "p nodataparam" " = \\(int &\\) @0x\[0-9a-f\]+: 22" "entry_reference: p nodataparam"
gdb_test "p nodataparam@entry" "Cannot resolve DW_AT_GNU_call_site_data_value" "entry_reference: p nodataparam@entry"
# Test virtual tail call frames.
gdb_continue_to_breakpoint "tailcall: breakhere"
gdb_test "bt" "^bt\r\n#0 +d *\\(i=71, i@entry=70, j=73\\.5, j@entry=72\\.5\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in c \\(i=i@entry=7, j=j@entry=7\\.25\\) \[^\r\n\]*\r\n#2 +0x\[0-9a-f\]+ in b \\(i=i@entry=5, j=j@entry=5\\.25\\) \[^\r\n\]*\r\n#3 +0x\[0-9a-f\]+ in main \[^\r\n\]*" \
"tailcall: bt"
gdb_test "p i" " = 71" "tailcall: p i"
gdb_test "p i@entry" " = 70" "tailcall: p i@entry"
gdb_test "p j" " = 73\\.5" "tailcall: p j"
gdb_test "p j@entry" " = 72\\.5" "tailcall: p j@entry"
# Test $sp simulation for tail call frames.
#gdb_test {p/x $sp} " = 0x.*"
#gdb_test {p/x $pc} " = 0x.*"
gdb_test_no_output {set $sp0=$sp}
gdb_test "up" "\r\n#1 .*"
#gdb_test {p/x $sp} " = 0x.*"
gdb_test {p $sp0 == $sp} " = true"
gdb_test "frame 3" "\r\n#3 .*"
gdb_test {p $sp0 + sizeof (void *) == $sp} " = true"
# Test $pc adjustment which is now right after the function end.
# Also verify the current PC indicator "=> " is not displayed anywhere.
gdb_test "down" "\r\n#2 .*"
set test "disassemble"
gdb_test_multiple $test $test {
-re "^$test\r\n" {
exp_continue
}
-re "^Dump of assembler code for function b\\(int, double\\):\r\n" {
exp_continue
}
-re "^ 0x\[^\r\n\]*\r\n" {
exp_continue
}
-re "^End of assembler dump\\.\r\n$gdb_prompt $" {
pass $test
}
}
# Test partial-ambiguous virtual tail call frames chain.
gdb_continue_to_breakpoint "ambiguous: breakhere"
gdb_test "bt" "^bt\r\n#0 +d \\(i=<optimized out>, j=<optimized out>\\)\[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in amb_z \\(i=<optimized out>\\)\[^\r\n\]*\r\n#2 +0x\[0-9a-f\]+ in amb_y \\(i=<optimized out>\\)\[^\r\n\]*\r\n#3 +0x\[0-9a-f\]+ in amb_x \\(i=<optimized out>\\)\[^\r\n\]*\r\n#4 +0x\[0-9a-f\]+ in amb_b \\(i=i@entry=101\\)\[^\r\n\]*\r\n#5 +0x\[0-9a-f\]+ in amb_a \\(i=i@entry=100\\)\[^\r\n\]*\r\n#6 +0x\[0-9a-f\]+ in main \\(\\)\[^\r\n\]*" \
"ambiguous: bt"
# Test self tail calls verification.
# GDB should not print the real value as it is ambiguous.
gdb_continue_to_breakpoint "self: breakhere"
gdb_test "bt" "^bt\r\n#0 +d \\(i=<optimized out>, j=<optimized out>\\)\[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in self \\(i=<optimized out>\\)\[^\r\n\]*\r\n#2 +0x\[0-9a-f\]+ in main \\(\\)\[^\r\n\]*" \
"self: bt"
gdb_test_no_output "set debug entry-values 1"
gdb_test "bt" "DW_OP_GNU_entry_value resolving has found function \"self\\(int\\)\" at 0x\[0-9a-f\]+ can call itself via tail calls\r\n.*" \
"self: bt debug entry-values"
|
