1# Copyright 1992, 1994, 1995, 1997 Free Software Foundation, Inc.
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 2 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, write to the Free Software
15# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
16
17# Please email any bugs, comments, and/or additions to this file to:
18# bug-gdb@prep.ai.mit.edu
19
20# This file was written by Fred Fish. (fnf@cygnus.com)
21
22if $tracelevel then {
23	strace $tracelevel
24}
25
26set prms_id 0
27set bug_id 0
28
29set testfile "bitfields"
30set srcfile ${testfile}.c
31set binfile ${objdir}/${subdir}/${testfile}
32if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
33    gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
34}
35
36#
37# Test bitfield locating and uniqueness.
38# For each member, set that member to 1 and verify that the member (and only
39# that member) is 1, then reset it back to 0.
40#
41
42proc bitfield_uniqueness {} {
43    global decimal
44    global hex
45    global gdb_prompt
46    global srcfile
47
48    if { ! [runto break1] } {
49	gdb_suppress_tests;
50    }
51
52    if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] {
53	gdb_suppress_tests;
54    }
55    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] {
56	gdb_suppress_tests;
57    }
58    # Note that we check for s1 as either 1 or -1, so that failure to
59    # treat it correctly as a signed 1bit field (values 0 or -1) while
60    # printing its value does not cause a spurious failure.  We do the
61    # signedness preservation test later.
62    if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] {
63	gdb_suppress_tests;
64    }
65    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] {
66	gdb_suppress_tests;
67    }
68    if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] {
69	gdb_suppress_tests;
70    }
71    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] {
72	gdb_suppress_tests;
73    }
74    if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] {
75	gdb_suppress_tests;
76    }
77    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] {
78	gdb_suppress_tests;
79    }
80    if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] {
81	gdb_suppress_tests;
82    }
83    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] {
84	gdb_suppress_tests;
85    }
86    if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] {
87	gdb_suppress_tests;
88    }
89    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] {
90	gdb_suppress_tests;
91    }
92    if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] {
93	gdb_suppress_tests
94    }
95    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] {
96	gdb_suppress_tests
97    }
98    if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] {
99	gdb_suppress_tests
100    }
101    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] {
102	gdb_suppress_tests
103    }
104    if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] {
105	gdb_suppress_tests
106    }
107    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] {
108	gdb_suppress_tests
109    }
110    if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] {
111	gdb_suppress_tests
112    }
113    # Hmmmm?
114    gdb_stop_suppressing_tests;
115}
116
117
118#
119# Test bitfield containment.
120# Fill alternating fields with all 1's and verify that none of the bits
121# "bleed over" to the other fields.
122#
123
124proc bitfield_containment {} {
125    global decimal
126    global hex
127    global gdb_prompt
128    global srcfile
129
130    delete_breakpoints
131
132    if { ![runto break2] } {
133	gdb_suppress_tests
134    }
135
136    if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] {
137	gdb_suppress_tests
138    }
139
140    if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] {
141	gdb_suppress_tests
142    }
143
144    # If program is compiled with Sun CC, then these print out as their
145    # actual sizes; if compiled with gcc, they print out as 0xffffffff
146    # (which strikes me as bogus, but accept it at least for now).
147    if [gdb_test "print/x flags" "= {uc = 0x0, s1 = 0x(1|f*), u1 = 0x0, s2 = 0x(3|f*), u2 = 0x0, s3 = 0x(7|f*), u3 = 0x0, s9 = 0x(1ff|f*), u9 = 0x0, sc = 0xff}" "bitfield containment #2"] {
148	gdb_suppress_tests
149    }
150    gdb_stop_suppressing_tests;
151}
152
153# Test unsigned bitfields for unsignedness and range.
154# Fill the unsigned fields with the maximum positive value and verify that
155# the values are printed correctly.
156
157proc bitfield_unsignedness {} {
158    global decimal
159    global hex
160    global gdb_prompt
161    global srcfile
162
163    delete_breakpoints
164
165    if { ![runto break3] } {
166	gdb_suppress_tests
167    }
168
169    if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 3, s3 = 0, u3 = 7, s9 = 0, u9 = 511, sc = 0.*" "unsigned bitfield ranges"] {
170	gdb_suppress_tests
171    }
172    gdb_stop_suppressing_tests;
173}
174
175#
176# Test signed bitfields for signedness and range.
177# Fill the signed fields with the maximum positive value, then the maximally
178# negative value, then -1, and verify in each case that the values are
179# printed correctly.
180#
181
182proc bitfield_signedness {} {
183    global decimal
184    global hex
185    global gdb_prompt
186    global srcfile
187
188    delete_breakpoints
189
190    if { ! [runto break4] } {
191	gdb_suppress_tests
192    }
193
194    if [gdb_test "print flags" "= {uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 3, u3 = 0, s9 = 255, u9 = 0, sc = 0 .*}" "signed bitfields, max positive values"] {
195	gdb_suppress_tests
196    }
197
198    if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] {
199	gdb_suppress_tests
200    }
201
202    # Determine if the target has signed bitfields so we can xfail the
203    # the signed bitfield tests if it doesn't.
204    send_gdb "print i\n"
205    gdb_expect {
206	-re ".* = -256.*$gdb_prompt $" {
207	    pass "determining signed-ness of bitfields"
208	}
209	-re ".* = 256.*$gdb_prompt $" {
210	    pass "determining signed-ness of bitfields"
211	    setup_xfail "*-*-*"
212	}
213	-re ".*$gdb_prompt $" {
214	    fail "determining signed-ness of bitfields"
215	    gdb_suppress_tests
216	}
217	default {
218	    fail "determining signed-ness of bitfields" ;
219	    gdb_suppress_tests;
220	}
221    }
222
223    if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] {
224        gdb_suppress_tests
225    }
226
227    if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] {
228	gdb_suppress_tests
229    }
230
231    if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -1, u2 = 0, s3 = -1, u3 = 0, s9 = -1, u9 = 0, sc = 0.*" "signed bitfields with -1"] {
232	gdb_suppress_tests
233    }
234    # Hmmmm???
235    gdb_stop_suppressing_tests;
236}
237
238gdb_start
239gdb_reinitialize_dir $srcdir/$subdir
240gdb_load ${binfile}
241
242send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $"
243
244bitfield_uniqueness
245if [istarget "mips-idt-*"] then {
246    # Restart because IDT/SIM runs out of file descriptors.
247    gdb_exit
248    gdb_start
249    gdb_reinitialize_dir $srcdir/$subdir
250    gdb_load ${binfile}
251}
252bitfield_containment
253if [istarget "mips-idt-*"] then {
254    # Restart because IDT/SIM runs out of file descriptors.
255    gdb_exit
256    gdb_start
257    gdb_reinitialize_dir $srcdir/$subdir
258    gdb_load ${binfile}
259}
260bitfield_unsignedness
261if [istarget "mips-idt-*"] then {
262    # Restart because IDT/SIM runs out of file descriptors.
263    gdb_exit
264    gdb_start
265    gdb_reinitialize_dir $srcdir/$subdir
266    gdb_load ${binfile}
267}
268bitfield_signedness
269