blob: 1bbdf0ea313e16e400774435e4faac34500c87e5 (
plain)
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
|
# Copyright 2009-2016 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/>.
# This file is part of the gdb testsuite.
if ![istarget "i?86-*linux*"] then {
verbose "Skipping i387 reverse float tests."
return
}
standard_testfile
# some targets have leading underscores on assembly symbols.
set additional_flags [gdb_target_symbol_prefix_flags]
if {[prepare_for_testing "failed to prepare" $testfile $srcfile \
[list debug $additional_flags]]} {
return -1
}
runto main
# Record to end of main
set location [gdb_get_line_number "END I387-FLOAT-REVERSE"]
gdb_test_no_output "record" "Turn on process record"
# This can take awhile.
set oldtimeout $timeout
set timeout [expr $oldtimeout + 120]
gdb_test "until $location" ".*$srcfile:$location.*" \
"record to end of main"
set timeout $oldtimeout
# Now rewind to beginning so we can begin testing.
set location [gdb_get_line_number "BEGIN I387-FLOAT-REVERSE"]
gdb_test_no_output "set exec-dir reverse" "set reverse direction"
gdb_test "until $location" ".*$srcfile:$location.*" \
"rewind to beginning of main"
gdb_test_no_output "set exec-dir forward" "set forward direction"
# Test FPU env particularly ftag and fstatus reigters.
set location [gdb_get_line_number "TEST ENV"]
gdb_test "until $location" ".*$srcfile:$location.*asm.*nop.*" \
"begin testing fpu env"
gdb_test "n" "asm.*fsave.*" "save FPU env in memory"
gdb_test "n" "asm.*frstor.*" "restore FPU env"
gdb_test "n" "asm.*fstsw.*" "store status word in EAX"
gdb_test "n" "asm.*fld1.*" "push st0"
gdb_test "info register eax" "eax *0x8040000.*\t.*" "verify eax == 0x8040000"
gdb_test "info register fstat" "fstat *0.*\t.*" "verify fstat == 0"
gdb_test "info register ftag" "ftag *0xffff.*\t.*" "verify ftag == 0xffff"
gdb_test "stepi" "asm.*fldl2t.*" "push st0"
gdb_test "info register fstat" "fstat *0x3800.*\t.*" "verify fstat == 0x3800"
gdb_test "info register ftag" "ftag *0x3fff.*\t.*" "verify ftag == 0x3fff"
gdb_test "stepi" "asm.*fldl2e.*" "push st0"
gdb_test "info register fstat" "fstat *0x3000.*\t.*" "verify fstat == 0x3000"
gdb_test "info register ftag" "ftag *0xfff.*\t.*" "verify ftag == 0xfff"
gdb_test "stepi" "asm.*fldpi.*" "push st0"
gdb_test "info register fstat" "fstat *0x2800.*\t.*" "verify fstat == 0x2800"
gdb_test "info register ftag" "ftag *0x3ff.*\t.*" "verify ftag == 0x3ff"
gdb_test "stepi" "asm.*fldlg2.*" "push st0"
gdb_test "info register fstat" "fstat *0x2000.*\t.*" "verify fstat == 0x2000"
gdb_test "info register ftag" "ftag *0xff.*\t.*" "verify ftag == 0xff"
gdb_test "stepi" "asm.*fldln2.*" "push st0"
gdb_test "info register fstat" "fstat *0x1800.*\t.*" "verify fstat == 0x1800"
gdb_test "info register ftag" "ftag *0x3f.*\t.*" "verify ftag == 0x3f"
gdb_test "stepi" "asm.*fldz.*" "push st0"
gdb_test "info register fstat" "fstat *0x1000.*\t.*" "verify fstat == 0x1000"
gdb_test "info register ftag" "ftag *0xf.*\t.*" "verify ftag == 0xf"
gdb_test "stepi" "asm.*nop.*" "push st0"
gdb_test "info register fstat" "fstat *0x800.*\t.*" "verify fstat == 0x800"
gdb_test "info register ftag" "ftag *0x7.*\t.*" "verify ftag == 0x7"
# move backward and ehck we get the same registers back.
gdb_test "reverse-stepi" "asm.*fldz.*" "push st0"
gdb_test "info register fstat" "fstat *0x1000.*\t.*" "verify fstat == 0x1000"
gdb_test "info register ftag" "ftag *0xf.*\t.*" "verify ftag == 0xf"
gdb_test "reverse-stepi" "asm.*fldln2.*" "push st0"
gdb_test "info register fstat" "fstat *0x1800.*\t.*" "verify fstat == 0x1800"
gdb_test "info register ftag" "ftag *0x3f.*\t.*" "verify ftag == 0x3f"
gdb_test "reverse-stepi" "asm.*fldlg2.*" "push st0"
gdb_test "info register fstat" "fstat *0x2000.*\t.*" "verify fstat == 0x2000"
gdb_test "info register ftag" "ftag *0xff.*\t.*" "verify ftag == 0xff"
gdb_test "reverse-stepi" "asm.*fldpi.*" "push st0"
gdb_test "info register fstat" "fstat *0x2800.*\t.*" "verify fstat == 0x2800"
gdb_test "info register ftag" "ftag *0x3ff.*\t.*" "verify ftag == 0x3ff"
gdb_test "reverse-stepi" "asm.*fldl2e.*" "push st0"
gdb_test "info register fstat" "fstat *0x3000.*\t.*" "verify fstat == 0x3000"
gdb_test "info register ftag" "ftag *0xfff.*\t.*" "verify ftag == 0xfff"
gdb_test "reverse-stepi" "asm.*fldl2t.*" "push st0"
gdb_test "info register fstat" "fstat *0x3800.*\t.*" "verify fstat == 0x3800"
gdb_test "info register ftag" "ftag *0x3fff.*\t.*" "verify ftag == 0x3fff"
gdb_test "reverse-stepi" "asm.*fld1.*" "push st0"
gdb_test "info register fstat" "fstat *0.*\t.*" "verify fstat == 0"
gdb_test "info register ftag" "ftag *0xffff.*\t.*" "verify ftag == 0xffff"
|
