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Remove stale -DNO_PROTOTYPES bits from gdb testsuite
[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / structs.exp
CommitLineData
e53890ae
AC		 1# This testcase is part of GDB, the GNU debugger.
2
b811d2c2 3# Copyright 1996-2020 Free Software Foundation, Inc.
74cf1395
JM		 4
5# This program is free software; you can redistribute it and/or modify
6# it under the terms of the GNU General Public License as published by
e22f8b7c 7# the Free Software Foundation; either version 3 of the License, or
74cf1395 8# (at your option) any later version.
e22f8b7c 9#
74cf1395
JM		 10# This program is distributed in the hope that it will be useful,
11# but WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13# GNU General Public License for more details.
e22f8b7c 14#
74cf1395 15# You should have received a copy of the GNU General Public License
e22f8b7c 16# along with this program. If not, see <http://www.gnu.org/licenses/>.
74cf1395 17
74cf1395 18
e53890ae
AC		 19# Some targets can't call functions, so don't even bother with this
20# test.
21
22if [target_info exists gdb,cannot_call_functions] {
bc6c7af4 23 unsupported "this target can not call functions"
e53890ae
AC		 24 continue
25}
26
0ab77f5f 27standard_testfile .c
74cf1395 28
8b7dbdc9
JK		 29# Regex matching any value of `char' type like: a = 65 'A'
30set anychar_re {-?[0-9]{1,3} '(.|\\([0-7]{3}|[a-z]|\\|'))'}
31
e53890ae
AC		 32# Create and source the file that provides information about the
33# compiler used to compile the test case.
853d6e5b 34
4c93b1db 35if [get_compiler_info] {
ae59b1da 36 return -1
853d6e5b
AC		 37}
38
62df7e21
YQ		 39set skip_float_test [gdb_skip_float_test]
40
e53890ae
AC		 41# Compile a variant of structs.c using TYPES to specify the type of
42# the first N struct elements (the remaining elements take the type of
43# the last TYPES field). Run the compmiled program up to "main".
44# Also updates the global "testfile" to reflect the most recent build.
853d6e5b 45
8b7dbdc9 46set first 1
e53890ae
AC		 47proc start_structs_test { types } {
48 global testfile
49 global srcfile
50 global binfile
e53890ae
AC		 51 global subdir
52 global srcdir
53 global gdb_prompt
8b7dbdc9
JK		 54 global anychar_re
55 global first
e53890ae
AC		 56
57 # Create the additional flags
58 set flags "debug"
59 set testfile "structs"
60 set n 0
61 for {set n 0} {$n<[llength ${types}]} {incr n} {
62 set m [I2A ${n}]
63 set t [lindex ${types} $n]
64 lappend flags "additional_flags=-Dt${m}=${t}"
65 append testfile "-" "$t"
66 }
67
0ab77f5f 68 set binfile [standard_output_file ${testfile}]
2eb82157
PA		 69 if { [prepare_for_testing "failed to prepare" $binfile $srcfile $flags] } {
70 return -1
e53890ae
AC		 71 }
72
e53890ae 73 # Make certain that the output is consistent
2b74ba5a
AB		 74 with_test_prefix "types=$types" {
75 gdb_test_no_output "set print sevenbit-strings"
76 gdb_test_no_output "set print address off"
77 gdb_test_no_output "set width 0"
78 gdb_test_no_output "set print elements 300"
79 }
e53890ae
AC		 80
81 # Advance to main
82 if { ![runto_main] } then {
4ec70201 83 gdb_suppress_tests
e53890ae 84 }
b729099e
MC		 85
86 # Get the debug format
87 get_debug_format
e53890ae 88
8b7dbdc9
JK		 89 # Limit the slow $anychar_re{256} matching for better performance.
90 if $first {
91 set first 0
92
93 # Verify $anychar_re can match all the values of `char' type.
94 gdb_breakpoint [gdb_get_line_number "chartest-done"]
95 gdb_continue_to_breakpoint "chartest-done" ".*chartest-done.*"
2a3ad588
TV		 96 gdb_test_sequence "p chartest" "" \
97 [concat \
98 [list "= \{"] \
99 [lrepeat 255 "^\{c = ${anychar_re}\}, "] \
100 [list "^\{c = ${anychar_re}\}\}"]]
8b7dbdc9
JK		 101 }
102
e53890ae
AC		 103 # check that at the struct containing all the relevant types is correct
104 set foo_t "type = struct struct[llength ${types}] \{"
105 for {set n 0} {$n<[llength ${types}]} {incr n} {
106 append foo_t "\[\r\n \]+[lindex ${types} $n] [i2a $n];"
107 }
108 append foo_t "\[\r\n \]+\}"
109 gdb_test "ptype foo[llength ${types}]" "${foo_t}" \
110 "ptype foo[llength ${types}]; ${testfile}"
74cf1395
JM		 111}
112
e53890ae
AC		 113# The expected value for fun${n}, L${n} and foo${n}. First element is
114# empty to make indexing easier. "foo" returns the modified value,
115# "zed" returns the invalid value.
853d6e5b 116
e53890ae
AC		 117proc foo { n } {
118 return [lindex {
119 "{}"
120 "{a = 49 '1'}"
121 "{a = 97 'a', b = 50 '2'}"
122 "{a = 49 '1', b = 98 'b', c = 51 '3'}"
123 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4'}"
124 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5'}"
125 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6'}"
126 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7'}"
127 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8'}"
128 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9'}"
129 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A'}"
130 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B'}"
131 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A', k = 107 'k', l = 67 'C'}"
132 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B', l = 108 'l', m = 68 'D'}"
133 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A', k = 107 'k', l = 67 'C', m = 109 'm', n = 69 'E'}"
134 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B', l = 108 'l', m = 68 'D', n = 110 'n', o = 70 'F'}"
135 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A', k = 107 'k', l = 67 'C', m = 109 'm', n = 69 'E', o = 111 'o', p = 71 'G'}"
136 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B', l = 108 'l', m = 68 'D', n = 110 'n', o = 70 'F', p = 112 'p', q = 72 'H'}"
137 } $n]
138}
139
140proc zed { n } {
141 return [lindex {
142 "{}"
143 "{a = 90 'Z'}"
144 "{a = 90 'Z', b = 90 'Z'}"
145 "{a = 90 'Z', b = 90 'Z', c = 90 'Z'}"
146 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z'}"
147 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z'}"
148 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z'}"
149 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z'}"
150 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z'}"
151 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z'}"
152 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z'}"
153 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z'}"
154 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z'}"
155 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z'}"
156 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z'}"
157 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z', o = 90 'Z'}"
158 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z', o = 90 'Z', p = 90 'Z'}"
159 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z', o = 90 'Z', p = 90 'Z', q = 90 'Z'}"
160 } $n]
161}
162
987a9106 163proc any { n } {
8b7dbdc9
JK		 164 global anychar_re
165 set ac $anychar_re
166 return [lindex [list \
167 "{}" \
168 "{a = ${ac}}" \
169 "{a = ${ac}, b = ${ac}}" \
170 "{a = ${ac}, b = ${ac}, c = ${ac}}" \
171 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}}" \
172 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}}" \
173 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}}" \
174 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}}" \
175 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}}" \
176 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}}" \
177 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}}" \
178 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}, k = ${ac}}" \
179 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}, k = ${ac}, l = ${ac}}" \
180 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}, k = ${ac}, l = ${ac}, m = ${ac}}" \
181 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}, k = ${ac}, l = ${ac}, m = ${ac}, n = ${ac}}" \
182 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}, k = ${ac}, l = ${ac}, m = ${ac}, n = ${ac}, o = ${ac}}" \
183 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}, k = ${ac}, l = ${ac}, m = ${ac}, n = ${ac}, o = ${ac}, p = ${ac}}" \
184 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}, k = ${ac}, l = ${ac}, m = ${ac}, n = ${ac}, o = ${ac}, p = ${ac}, q = ${ac}}" \
185 ] $n]
987a9106
JB		 186}
187
e53890ae
AC		 188# Given N (0..25), return the corresponding alphabetic letter in lower
189# or upper case. This is ment to be i18n proof.
190
191proc i2a { n } {
192 return [string range "abcdefghijklmnopqrstuvwxyz" $n $n]
193}
194
195proc I2A { n } {
196 return [string toupper [i2a $n]]
197}
198
199
200# Use the file name, compiler and tuples to set up any needed KFAILs.
201
e53890ae
AC		 202proc setup_compiler_kfails { file compiler format tuples bug } {
203 global testfile
204 if {[string match $file $testfile] && [test_compiler_info $compiler] && [test_debug_format $format]} {
bbc8b958 205 foreach f $tuples { setup_kfail $bug $f }
e53890ae
AC		 206 }
207}
208
209# Test GDB's ability to make inferior function calls to functions
210# returning (or passing in a single structs.
211
212# N identifies the number of elements in the struct that will be used
213# for the test case. FAILS is a list of target tuples that will fail
214# this test.
853d6e5b 215
e53890ae
AC		 216# start_structs_test() will have previously built a program with a
217# specified combination of types for those elements. To ensure
218# robustness of the output, "p/c" is used.
219
220# This tests the code paths "which return-value convention?" and
221# "extract return-value from registers" called by "infcall.c".
222
223proc test_struct_calls { n } {
224 global testfile
b4967060 225 global gdb_prompt
853d6e5b 226
e53890ae
AC		 227 # Check that GDB can always extract a struct-return value from an
228 # inferior function call. Since GDB always knows the location of an
229 # inferior function call's return value these should never fail
230
231 # Implemented by calling the parameterless function "fun$N" and then
232 # examining the return value printed by GDB.
853d6e5b 233
e53890ae 234 set tests "call $n ${testfile}"
853d6e5b 235
e53890ae 236 # Call fun${n}, checking the printed return-value.
338e05af
AC		 237 setup_compiler_kfails structs-tc-tll gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
238 setup_compiler_kfails structs-tc-td gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
e53890ae 239 gdb_test "p/c fun${n}()" "[foo ${n}]" "p/c fun<n>(); ${tests}"
853d6e5b 240
e53890ae
AC		 241 # Check that GDB can always pass a structure to an inferior function.
242 # This test can never fail.
243
244 # Implemented by calling the one parameter function "Fun$N" which
245 # stores its parameter in the global variable "L$N". GDB then
246 # examining that global to confirm that the value is as expected.
247
27d3a1a2 248 gdb_test_no_output "call Fun${n}(foo${n})" "call Fun<n>(foo<n>); ${tests}"
338e05af
AC		 249 setup_compiler_kfails structs-tc-tll gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
250 setup_compiler_kfails structs-tc-td gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
e53890ae 251 gdb_test "p/c L${n}" [foo ${n}] "p/c L<n>; ${tests}"
b4967060 252}
853d6e5b 253
e53890ae
AC		 254# Test GDB's ability to both return a function (with "return" or
255# "finish") and correctly extract/store any corresponding
256# return-value.
257
258# Check that GDB can consistently extract/store structure return
259# values. There are two cases - returned in registers and returned in
260# memory. For the latter case, the return value can't be found and a
261# failure is "expected". However GDB must still both return the
262# function and display the final source and line information.
263
264# N identifies the number of elements in the struct that will be used
265# for the test case. FAILS is a list of target tuples that will fail
266# this test.
267
268# This tests the code paths "which return-value convention?", "extract
269# return-value from registers", and "store return-value in registers".
270# Unlike "test struct calls", this test is expected to "fail" when the
271# return-value is in memory (GDB can't find the location). The test
272# is in three parts: test "return"; test "finish"; check that the two
273# are consistent. GDB can sometimes work for one command and not the
274# other.
275
276proc test_struct_returns { n } {
277 global gdb_prompt
278 global testfile
279
280 set tests "return $n ${testfile}"
281
282
283 # Check that "return" works.
284
285 # GDB must always force the return of a function that has
286 # a struct result. Dependant on the ABI, it may, or may not be
287 # possible to store the return value in a register.
288
289 # The relevant code looks like "L{n} = fun{n}()". The test forces
290 # "fun{n}" to "return" with an explicit value. Since that code
7a9dd1b2 291 # snippet will store the returned value in "L{n}" the return
e53890ae
AC		 292 # is tested by examining "L{n}". This assumes that the
293 # compiler implemented this as fun{n}(&L{n}) and hence that when
294 # the value isn't stored "L{n}" remains unchanged. Also check for
295 # consistency between this and the "finish" case.
296
297 # Get into a call of fun${n}
298 gdb_test "advance fun${n}" \
299 "fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \
300 "advance to fun<n> for return; ${tests}"
301
302 # Check that the program invalidated the relevant global.
1bfbbb9d 303 gdb_test "p/c L${n}" " = [zed $n]" "zed L<n> for return; ${tests}"
e53890ae
AC		 304
305 # Force the "return". This checks that the return is always
306 # performed, and that GDB correctly reported this to the user.
307 # GDB 6.0 and earlier, when the return-value's location wasn't
308 # known, both failed to print a final "source and line" and misplaced
309 # the frame ("No frame").
310
311 # The test is writen so that it only reports one FAIL/PASS for the
312 # entire operation. The value returned is checked further down.
b5c0bfa2
AC		 313 # "return_value_known", if non-zero, indicates that GDB knew where
314 # the return value was located.
e53890ae 315
e53890ae 316 set test "return foo<n>; ${tests}"
b5c0bfa2 317 set return_value_known 1
5266b69c 318 set return_value_unimplemented 0
d422fe19 319 gdb_test_multiple "return foo${n}" "${test}" {
e53890ae
AC		 320 -re "The location" {
321 # Ulgh, a struct return, remember this (still need prompt).
b5c0bfa2 322 set return_value_known 0
e53890ae
AC		 323 exp_continue
324 }
325 -re "A structure or union" {
326 # Ulgh, a struct return, remember this (still need prompt).
b5c0bfa2 327 set return_value_known 0
5266b69c
AC		 328 # Double ulgh. Architecture doesn't use return_value and
329 # hence hasn't implemented small structure return.
330 set return_value_unimplemented 1
e53890ae
AC		 331 exp_continue
332 }
333 -re "Make fun${n} return now.*y or n. $" {
d422fe19 334 gdb_test_multiple "y" "${test}" {
e53890ae
AC		 335 -re "L${n} *= fun${n}.*${gdb_prompt} $" {
336 # Need to step off the function call
337 gdb_test "next" "L.* *= fun.*" "${test}"
338 }
339 -re "L[expr ${n} + 1] *= fun[expr ${n} + 1].*${gdb_prompt} $" {
340 pass "${test}"
341 }
e53890ae
AC		 342 }
343 }
e53890ae
AC		 344 }
345
346 # Check that the return-value is as expected. At this stage we're
347 # just checking that GDB has returned a value consistent with
b5c0bfa2 348 # "return_value_known" set above.
987a9106
JB		 349 #
350 # Note that, when return_value_known is false, we can't make any
351 # assumptions at all about the value L<n>:
352 #
353 # - If the caller passed the address of L<n> directly as fun<n>'s
354 # return value buffer, then L<n> will be unchanged, because we
355 # forced fun<n> to return before it could store anything in it.
356 #
357 # - If the caller passed the address of some temporary buffer to
358 # fun<n>, and then copied the buffer into L<n>, then L<n> will
359 # have been overwritten with whatever garbage was in the
360 # uninitialized buffer.
361 #
362 # - However, if the temporary buffer just happened to have the
363 # "right" value of foo<n> in it, then L<n> will, in fact, have
364 # the value you'd expect to see if the 'return' had worked!
365 # This has actually been observed to happen on the Renesas M32C.
366 #
367 # So, really, anything is acceptable unless return_value_known is
368 # true.
e53890ae 369
e53890ae 370 set test "value foo<n> returned; ${tests}"
d422fe19 371 gdb_test_multiple "p/c L${n}" "${test}" {
e53890ae 372 -re " = [foo ${n}].*${gdb_prompt} $" {
987a9106
JB		 373 # This answer is okay regardless of whether GDB claims to
374 # have set the return value: if it did, then this is what
375 # we expected; and if it didn't, then any answer is okay.
376 pass "${test}"
e53890ae 377 }
987a9106 378 -re " = [any $n].*${gdb_prompt} $" {
b5c0bfa2
AC		 379 if $return_value_known {
380 # This contradicts the above claim that GDB knew
987a9106 381 # the location of the return value.
b5c0bfa2
AC		 382 fail "${test}"
383 } else {
987a9106
JB		 384 # We expected L${n} to be set to garbage, so any
385 # answer is acceptable.
e53890ae 386 pass "${test}"
e53890ae
AC		 387 }
388 }
5266b69c
AC		 389 -re ".*${gdb_prompt} $" {
390 if $return_value_unimplemented {
391 # What a suprize. The architecture hasn't implemented
392 # return_value, and hence has to fail.
393 kfail "$test" gdb/1444
394 } else {
395 fail "$test"
396 }
397 }
e53890ae
AC		 398 }
399
400 # Check that a "finish" works.
401
402 # This is almost but not quite the same as "call struct funcs".
403 # Architectures can have subtle differences in the two code paths.
404
405 # The relevant code snippet is "L{n} = fun{n}()". The program is
406 # advanced into a call to "fun{n}" and then that function is
407 # finished. The returned value that GDB prints, reformatted using
408 # "p/c", is checked.
409
410 # Get into "fun${n}()".
411 gdb_test "advance fun${n}" \
412 "fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \
413 "advance to fun<n> for finish; ${tests}"
414
415 # Check that the program invalidated the relevant global.
e53890ae
AC		 416 gdb_test "p/c L${n}" " = [zed $n]" "zed L<n> for finish; ${tests}"
417
b5c0bfa2
AC		 418 # Finish the function, set 'finish_value_known" to non-empty if
419 # the return-value was found.
420
6882279b 421 set test "finish foo<n>; ${tests}"
b5c0bfa2 422 set finish_value_known 1
d422fe19 423 gdb_test_multiple "finish" "${test}" {
e53890ae
AC		 424 -re "Value returned is .*${gdb_prompt} $" {
425 pass "${test}"
426 }
2f41223f 427 -re "Value returned has type: struct struct$n. Cannot determine contents.*${gdb_prompt} $" {
e53890ae 428 # Expected bad value. For the moment this is ok.
b5c0bfa2 429 set finish_value_known 0
e53890ae
AC		 430 pass "${test}"
431 }
e53890ae
AC		 432 }
433
434 # Re-print the last (return-value) using the more robust
435 # "p/c". If no return value was found, the 'Z' from the previous
436 # check that the variable was cleared, is printed.
6882279b 437 set test "value foo<n> finished; ${tests}"
d422fe19 438 gdb_test_multiple "p/c" "${test}" {
e53890ae 439 -re "[foo ${n}]\[\r\n\]+${gdb_prompt} $" {
b5c0bfa2
AC		 440 if $finish_value_known {
441 pass "${test}"
442 } else {
e53890ae
AC		 443 # This contradicts the above claim that GDB didn't
444 # know the location of the return-value.
445 fail "${test}"
e53890ae
AC		 446 }
447 }
448 -re "[zed ${n}]\[\r\n\]+${gdb_prompt} $" {
449 # The value didn't get found. This is "expected".
b5c0bfa2 450 if $finish_value_known {
e53890ae
AC		 451 # This contradicts the above claim that GDB did
452 # know the location of the return-value.
453 fail "${test}"
b5c0bfa2
AC		 454 } else {
455 pass "${test}"
e53890ae
AC		 456 }
457 }
e53890ae
AC		 458 }
459
460 # Finally, check that "return" and finish" have consistent
461 # behavior.
462
b5c0bfa2
AC		 463 # Since "finish" works in more cases than "return" (see
464 # RETURN_VALUE_ABI_RETURNS_ADDRESS and
465 # RETURN_VALUE_ABI_PRESERVES_ADDRESS), the "return" value being
466 # known implies that the "finish" value is known (but not the
467 # reverse).
e53890ae 468
b5c0bfa2
AC		 469 set test "return value known implies finish value known; ${tests}"
470 if {$return_value_known && ! $finish_value_known} {
e53890ae 471 kfail gdb/1444 "${test}"
b5c0bfa2
AC		 472 } else {
473 pass "${test}"
e53890ae 474 }
b4967060 475}
853d6e5b 476
e53890ae
AC		 477# ABIs pass anything >8 or >16 bytes in memory but below that things
478# randomly use register and/and structure conventions. Check all
479# possible sized char structs in that range. But only a restricted
480# range of the other types.
481
482# NetBSD/PPC returns "unnatural" (3, 5, 6, 7) sized structs in memory.
483
e53890ae
AC		 484# Test every single char struct from 1..17 in size. This is what the
485# original "structs" test was doing.
486
487start_structs_test { tc }
488test_struct_calls 1
489test_struct_calls 2
490test_struct_calls 3
491test_struct_calls 4
492test_struct_calls 5
493test_struct_calls 6
494test_struct_calls 7
495test_struct_calls 8
496test_struct_calls 9
497test_struct_calls 10
498test_struct_calls 11
499test_struct_calls 12
500test_struct_calls 13
501test_struct_calls 14
502test_struct_calls 15
503test_struct_calls 16
504test_struct_calls 17
505test_struct_returns 1
506test_struct_returns 2
507test_struct_returns 3
508test_struct_returns 4
509test_struct_returns 5
510test_struct_returns 6
511test_struct_returns 7
512test_struct_returns 8
513
514
515# Let the fun begin.
516
517# Assuming that any integer struct larger than 8 bytes goes in memory,
518# come up with many and varied combinations of a return struct. For
519# "struct calls" test just beyond that 8 byte boundary, for "struct
520# returns" test up to that boundary.
521
522# For floats, assumed that up to two struct elements can be stored in
523# floating point registers, regardless of their size.
524
525# The approx size of each structure it is computed assumed that tc=1,
526# ts=2, ti=4, tl=4, tll=8, tf=4, td=8, tld=16, and that all fields are
c1862d0f 527# naturally aligned. Padding being added where needed.
e53890ae
AC		 528
529# Approx size: 2, 4, ...
530start_structs_test { ts }
531test_struct_calls 1
532test_struct_calls 2
533test_struct_calls 3
534test_struct_calls 4
535test_struct_calls 5
536test_struct_returns 1
537test_struct_returns 2
538test_struct_returns 3
539test_struct_returns 4
540
541# Approx size: 4, 8, ...
542start_structs_test { ti }
543test_struct_calls 1
544test_struct_calls 2
545test_struct_calls 3
546test_struct_returns 1
547test_struct_returns 2
548
549# Approx size: 4, 8, ...
550start_structs_test { tl }
551test_struct_calls 1
552test_struct_calls 2
553test_struct_calls 3
554test_struct_returns 1
555test_struct_returns 2
556
557# Approx size: 8, 16, ...
558start_structs_test { tll }
559test_struct_calls 1
560test_struct_calls 2
561test_struct_returns 1
562
62df7e21
YQ		 563if { !$skip_float_test } {
564 # Approx size: 4, 8, ...
565 start_structs_test { tf }
566 test_struct_calls 1
567 test_struct_calls 2
568 test_struct_calls 3
569 test_struct_returns 1
570 test_struct_returns 2
571
572 # Approx size: 8, 16, ...
573 start_structs_test { td }
574 test_struct_calls 1
575 test_struct_calls 2
576 test_struct_returns 1
577
578 # Approx size: 16, 32, ...
579 start_structs_test { tld }
580 test_struct_calls 1
581 test_struct_calls 2
582 test_struct_returns 1
583}
e53890ae
AC		 584
585# Approx size: 2+1=3, 4, ...
586start_structs_test { ts tc }
587test_struct_calls 2
588test_struct_calls 3
589test_struct_calls 4
590test_struct_calls 5
591test_struct_calls 6
592test_struct_calls 7
593test_struct_calls 8
594test_struct_returns 2
595
596# Approx size: 4+1=5, 6, ...
597start_structs_test { ti tc }
598test_struct_calls 2
599test_struct_calls 3
600test_struct_calls 4
601test_struct_calls 5
602test_struct_calls 6
603test_struct_returns 2
604
605# Approx size: 4+1=5, 6, ...
606start_structs_test { tl tc }
607test_struct_calls 2
608test_struct_calls 3
609test_struct_calls 4
610test_struct_calls 5
611test_struct_calls 6
612test_struct_returns 2
613
614# Approx size: 8+1=9, 10, ...
615start_structs_test { tll tc }
616test_struct_calls 2
617
62df7e21
YQ		 618if { !$skip_float_test } {
619 # Approx size: 4+1=5, 6, ...
620 start_structs_test { tf tc }
621 test_struct_calls 2
622 test_struct_calls 3
623 test_struct_calls 4
624 test_struct_calls 5
625 test_struct_calls 6
626 test_struct_returns 2
627
628 # Approx size: 8+1=9, 10, ...
629 start_structs_test { td tc }
630 test_struct_calls 2
631
632 # Approx size: 16+1=17, 18, ...
633 start_structs_test { tld tc }
634 test_struct_calls 2
635}
e53890ae
AC		 636
637# Approx size: (1+1)+2=4, 6, ...
638start_structs_test { tc ts }
639test_struct_calls 2
640test_struct_calls 3
641test_struct_calls 4
642test_struct_calls 5
643test_struct_calls 6
644test_struct_returns 2
645
646# Approx size: (1+3)+4=8, 12, ...
647start_structs_test { tc ti }
648test_struct_calls 2
649test_struct_calls 3
650test_struct_calls 4
651test_struct_returns 2
652
653# Approx size: (1+3)+4=8, 12, ...
654start_structs_test { tc tl }
655test_struct_calls 2
656test_struct_calls 3
657test_struct_calls 4
658test_struct_returns 2
659
660# Approx size: (1+7)+8=16, 24, ...
661start_structs_test { tc tll }
662test_struct_calls 2
663
62df7e21
YQ		 664if { !$skip_float_test } {
665 # Approx size: (1+3)+4=8, 12, ...
666 start_structs_test { tc tf }
667 test_struct_calls 2
668 test_struct_calls 3
669 test_struct_calls 4
e53890ae 670
62df7e21
YQ		 671 # Approx size: (1+7)+8=16, 24, ...
672 start_structs_test { tc td }
673 test_struct_calls 2
e53890ae 674
62df7e21
YQ		 675 # Approx size: (1+15)+16=32, 48, ...
676 start_structs_test { tc tld }
677 test_struct_calls 2
e53890ae 678
62df7e21 679 # Some float combinations
74cf1395 680
62df7e21
YQ		 681 # Approx size: 8+4=12, 16, ...
682 start_structs_test { td tf }
683 test_struct_calls 2
684 test_struct_returns 2
74cf1395 685
62df7e21
YQ		 686 # Approx size: (4+4)+8=16, 32, ...
687 start_structs_test { tf td }
688 test_struct_calls 2
689 test_struct_returns 2
690}
74cf1395 691return 0
GDB Binutils - Deliverables
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