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
|
# Copyright (C) 2002-2018 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/>.
#
# Tests for Powerpc AltiVec ABI
#
# This file uses altivec-abi.c for input.
#
if {![istarget "powerpc*"] || [skip_altivec_tests]} then {
verbose "Skipping altivec abi tests."
return
}
standard_testfile
if [get_compiler_info] {
warning "get_compiler failed"
return -1
}
proc altivec_abi_tests { extra_flags force_abi } {
global testfile binfile srcfile srcdir subdir
global gdb_prompt
set compile_flags "debug nowarnings $extra_flags"
if { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable $compile_flags] != "" } {
untested "failed to compile"
return -1
}
if { "$force_abi" == "auto" } {
# If the toolchain does not record attributes, skip auto-ABI tests.
set readelf_program [gdb_find_readelf]
set result [catch "exec $readelf_program -A $binfile" output]
if {$result == 0 && ![regexp Tag_GNU_Power_ABI_Vector $output]} {
untested "ABI not marked"
return
}
}
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
# Run to `main' where we begin our tests.
if ![runto_main] then {
untested "could not run to main"
return -1
}
gdb_test "set print frame-arguments all"
gdb_test "set powerpc vector-abi $force_abi"
gdb_test "b marker" "Breakpoint 2 at.*file.*altivec-abi.c, line \[0-9\]+." "break marker"
gdb_test "continue" "Breakpoint 2.*marker.*altivec-abi.c.*" "continue to marker"
gdb_test "finish" "Run till exit from .0.*marker.*at.*altivec-abi.c.*main \\(\\) at.*altivec-abi.c.*result = vec_func \\(vshort,.*goes in v2.*" "back to main (1)"
# now all the arguments of vec_fun are initialized
set pattern "vec_func .vshort_f=.111, 222, 333, 444, 555, 666, 777, 888., vushort_f=.100, 200, 300, 400, 500, 600, 700, 800., vint_f=.-10, -20, -30, -40., vuint_f=.1111, 2222, 3333, 4444., vchar_f=.97, 98, 99, 100, 101, 102, 103, 104, 105, 108, 109, 110, 111, 112, 113, 114., vuchar_f=.65, 66, 67, 68, 69, 70, 71, 72, 73, 76, 77, 78, 79, 80, 81, 82., vfloat_f=.1.25, 3.75, 5.5, 1.25., x_f=.1, 2, 3, 4, 5, 6, 7, 8., y_f=.12, 22, 32, 42., a_f=.118, 101, 99, 116, 111, 114, 32, 111, 102, 32, 99, 104, 97, 114, 115, 46., b_f=.5.5, 4.5, 3.75, 2.25., c_f=.1.25, 3.5, 5.5, 7.75., intv_on_stack_f=.12, 34, 56, 78.."
set pattern1 $pattern
append pattern1 " at.*altivec-abi.c.*vint_res = vec_add.*vint_f, intv_on_stack_f.;"
# Now let's call the function. This function has > 12 args,
# the last one will go on the stack.
set msg "call inferior function with vectors (1)"
gdb_test "p vec_func(vshort,vushort,vint,vuint,vchar,vuchar,vfloat,x,y,a,b,c,intv_on_stack)" \
".\[0-9\]+ = .14, 36, 58, 80." "call inferior function with vectors (1)"
# Let's call the function again with dummy arguments. This is to clean
# up the contents of the vector registers before the next call.
gdb_test "p vec_func(vshort_d,vushort_d,vint_d,vuint_d,vchar_d,vuchar_d,vfloat_d,x_d,y_d,a_d,b_d,c_d,intv_on_stack_d)" \
".\[0-9\]+ = .0, 0, 0, 0." "call inferior function with vectors (2)"
# Attempt to take address of the return value of vec_func.
gdb_test "p &vec_func(vshort,vushort,vint,vuint,vchar,vuchar,vfloat,x,y,a,b,c,intv_on_stack)" \
"Attempt to take address of value not located in memory." \
"Attempt to take address of the return value of vec_func"
# Attempt to assign a value to the return value of vec_func.
gdb_test "set variable vec_func(vshort,vushort,vint,vuint,vchar,vuchar,vfloat,x,y,a,b,c,intv_on_stack) = {0,1,2,3}" \
"Left operand of assignment is not an lvalue." \
"Attempt to assign a value to the return value of vec_func"
# Let's step into the function, to see if the args are printed correctly.
gdb_test "step" \
$pattern1 \
"step into vec_fun"
set pattern2 $pattern
append pattern2 " at.*altivec-abi.c.*main.*result = vec_func .vshort,.*goes in v2.*Value returned is.*= .14, 36, 58, 80."
# Let's see if the result is returned correctly.
set message "vector value returned correctly"
gdb_test_multiple "finish" $message {
-re "Run till exit from .0.*$pattern2.*$gdb_prompt $" {
pass $message
}
-re "Run till exit from .0.*Cannot determine contents.*$gdb_prompt $" {
# This happens in those cases where the vector is returned by
# reference (generic vectors on 64-bit GNU/Linux).
pass $message
}
}
# can we print the args correctly for this function?
gdb_test "break struct_of_vector_func" "" ""
set pattern "struct_of_vector_func .vector_struct=.vshort1 = .1, 2, 3, 4, 5, 6, 7, 8., vshort2 = .11, 12, 13, 14, 15, 16, 17, 18., vshort3 = .21, 22, 23, 24, 25, 26, 27, 28., vshort4 = .31, 32, 33, 34, 35, 36, 37, 38... at.*altivec-abi.c.*"
gdb_test "continue" \
"Breakpoint 3, $pattern.*vector_struct.vshort1 = vec_add .vector_struct.vshort1, vector_struct.vshort2.;" \
"continue to struct_of_vector_func"
gdb_test "finish" \
"Run till exit from .0 $pattern\[ \r\n\]+main.*altivec-abi.c.*array_of_vector_func.*" \
"back to main (2)"
gdb_test "step" "" "step into array_of_vector_func"
gdb_test "p matrix\[0\]" ".*= .1, 2, 3, 4, 5, 6, 7, 8." "print first vector"
gdb_test "p matrix\[1\]" ".*= .11, 12, 13, 14, 15, 16, 17, 18." "print second vector"
gdb_test "p matrix\[2\]" ".*= .21, 22, 23, 24, 25, 26, 27, 28." "print third vector"
gdb_test "p matrix\[3\]" ".*= .31, 32, 33, 34, 35, 36, 37, 38." "print fourth vector"
}
if [test_compiler_info gcc*] {
set binprefix ${binfile}
with_test_prefix "default ABI, auto" {
altivec_abi_tests "additional_flags=-maltivec" "auto"
}
# On GNU/Linux, we can mix -mabi=no-altivec and -mabi=altivec.
# So test some combinations.
if { [istarget "powerpc*-linux*"] } {
# On 64-bit GNU/Linux with GCC 4.1 and 4.2, -mabi=no-altivec
# was broken, so skip those tests there.
if { ![is_lp64_target] || ![test_compiler_info "gcc-4-\[12\]-*"] } {
set binfile ${binprefix}-ge-ge
with_test_prefix "generic ABI, forced" {
altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=no-altivec" "generic"
}
set binfile ${binprefix}-ge-auto
with_test_prefix "generic ABI, auto" {
altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=no-altivec" "auto"
}
}
set binfile ${binprefix}-av-av
with_test_prefix "AltiVec ABI, forced" {
altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=altivec" "altivec"
}
set binfile ${binprefix}-av-auto
with_test_prefix "AltiVec ABI, auto" {
altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=altivec" "auto"
}
}
} elseif [test_compiler_info xlc*] {
altivec_abi_tests "additional_flags=-qaltivec" "auto"
} else {
warning "unknown compiler"
return -1
}
|
