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Fix PR 20345 - call_function_by_hand_dummy: Assertion `tp->thread_fsm == &sm->thread_...
[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / structs.exp
CommitLineData
e53890ae
AC		 1# This testcase is part of GDB, the GNU debugger.
2
618f726f 3# Copyright 1996-2016 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] {
cad8e26d 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
e53890ae
AC		 39# Compile a variant of structs.c using TYPES to specify the type of
40# the first N struct elements (the remaining elements take the type of
41# the last TYPES field). Run the compmiled program up to "main".
42# Also updates the global "testfile" to reflect the most recent build.
853d6e5b 43
8b7dbdc9 44set first 1
e53890ae
AC		 45proc start_structs_test { types } {
46 global testfile
47 global srcfile
48 global binfile
e53890ae
AC		 49 global subdir
50 global srcdir
51 global gdb_prompt
8b7dbdc9
JK		 52 global anychar_re
53 global first
e53890ae
AC		 54
55 # Create the additional flags
56 set flags "debug"
57 set testfile "structs"
58 set n 0
59 for {set n 0} {$n<[llength ${types}]} {incr n} {
60 set m [I2A ${n}]
61 set t [lindex ${types} $n]
62 lappend flags "additional_flags=-Dt${m}=${t}"
63 append testfile "-" "$t"
64 }
65
0ab77f5f 66 set binfile [standard_output_file ${testfile}]
e53890ae
AC		 67 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable "${flags}"] != "" } {
68 # built the second test case since we can't use prototypes
69 warning "Prototypes not supported, rebuilding with -DNO_PROTOTYPES"
70 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable "${flags} additional_flags=-DNO_PROTOTYPES"] != "" } {
b60f0898
JB		 71 untested structs.exp
72 return -1
e53890ae
AC		 73 }
74 }
75
76 # Start with a fresh gdb.
e42c7771 77 gdb_exit
e53890ae
AC		 78 gdb_start
79 gdb_reinitialize_dir $srcdir/$subdir
80 gdb_load ${binfile}
81
82 # Make certain that the output is consistent
27d3a1a2
MS		 83 gdb_test_no_output "set print sevenbit-strings"
84 gdb_test_no_output "set print address off"
85 gdb_test_no_output "set width 0"
86 gdb_test_no_output "set print elements 300"
e53890ae
AC		 87
88 # Advance to main
89 if { ![runto_main] } then {
4ec70201 90 gdb_suppress_tests
e53890ae 91 }
b729099e
MC		 92
93 # Get the debug format
94 get_debug_format
e53890ae 95
8b7dbdc9
JK		 96 # Limit the slow $anychar_re{256} matching for better performance.
97 if $first {
98 set first 0
99
100 # Verify $anychar_re can match all the values of `char' type.
101 gdb_breakpoint [gdb_get_line_number "chartest-done"]
102 gdb_continue_to_breakpoint "chartest-done" ".*chartest-done.*"
103 gdb_test "p chartest" "= {({c = ${anychar_re}}, ){255}{c = ${anychar_re}}}"
104 }
105
e53890ae
AC		 106 # check that at the struct containing all the relevant types is correct
107 set foo_t "type = struct struct[llength ${types}] \{"
108 for {set n 0} {$n<[llength ${types}]} {incr n} {
109 append foo_t "\[\r\n \]+[lindex ${types} $n] [i2a $n];"
110 }
111 append foo_t "\[\r\n \]+\}"
112 gdb_test "ptype foo[llength ${types}]" "${foo_t}" \
113 "ptype foo[llength ${types}]; ${testfile}"
74cf1395
JM		 114}
115
e53890ae
AC		 116# The expected value for fun${n}, L${n} and foo${n}. First element is
117# empty to make indexing easier. "foo" returns the modified value,
118# "zed" returns the invalid value.
853d6e5b 119
e53890ae
AC		 120proc foo { n } {
121 return [lindex {
122 "{}"
123 "{a = 49 '1'}"
124 "{a = 97 'a', b = 50 '2'}"
125 "{a = 49 '1', b = 98 'b', c = 51 '3'}"
126 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4'}"
127 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5'}"
128 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6'}"
129 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7'}"
130 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8'}"
131 "{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'}"
132 "{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'}"
133 "{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'}"
134 "{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'}"
135 "{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'}"
136 "{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'}"
137 "{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'}"
138 "{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'}"
139 "{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'}"
140 } $n]
141}
142
143proc zed { n } {
144 return [lindex {
145 "{}"
146 "{a = 90 'Z'}"
147 "{a = 90 'Z', b = 90 'Z'}"
148 "{a = 90 'Z', b = 90 'Z', c = 90 'Z'}"
149 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z'}"
150 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z'}"
151 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z'}"
152 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 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'}"
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'}"
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'}"
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'}"
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'}"
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'}"
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'}"
160 "{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'}"
161 "{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'}"
162 "{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'}"
163 } $n]
164}
165
987a9106 166proc any { n } {
8b7dbdc9
JK		 167 global anychar_re
168 set ac $anychar_re
169 return [lindex [list \
170 "{}" \
171 "{a = ${ac}}" \
172 "{a = ${ac}, b = ${ac}}" \
173 "{a = ${ac}, b = ${ac}, c = ${ac}}" \
174 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}}" \
175 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}}" \
176 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}}" \
177 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}}" \
178 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}}" \
179 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}}" \
180 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}}" \
181 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}, k = ${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}}" \
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}}" \
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}}" \
185 "{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}}" \
186 "{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}}" \
187 "{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}}" \
188 ] $n]
987a9106
JB		 189}
190
e53890ae
AC		 191# Given N (0..25), return the corresponding alphabetic letter in lower
192# or upper case. This is ment to be i18n proof.
193
194proc i2a { n } {
195 return [string range "abcdefghijklmnopqrstuvwxyz" $n $n]
196}
197
198proc I2A { n } {
199 return [string toupper [i2a $n]]
200}
201
202
203# Use the file name, compiler and tuples to set up any needed KFAILs.
204
e53890ae
AC		 205proc setup_compiler_kfails { file compiler format tuples bug } {
206 global testfile
207 if {[string match $file $testfile] && [test_compiler_info $compiler] && [test_debug_format $format]} {
bbc8b958 208 foreach f $tuples { setup_kfail $bug $f }
e53890ae
AC		 209 }
210}
211
212# Test GDB's ability to make inferior function calls to functions
213# returning (or passing in a single structs.
214
215# N identifies the number of elements in the struct that will be used
216# for the test case. FAILS is a list of target tuples that will fail
217# this test.
853d6e5b 218
e53890ae
AC		 219# start_structs_test() will have previously built a program with a
220# specified combination of types for those elements. To ensure
221# robustness of the output, "p/c" is used.
222
223# This tests the code paths "which return-value convention?" and
224# "extract return-value from registers" called by "infcall.c".
225
226proc test_struct_calls { n } {
227 global testfile
b4967060 228 global gdb_prompt
853d6e5b 229
e53890ae
AC		 230 # Check that GDB can always extract a struct-return value from an
231 # inferior function call. Since GDB always knows the location of an
232 # inferior function call's return value these should never fail
233
234 # Implemented by calling the parameterless function "fun$N" and then
235 # examining the return value printed by GDB.
853d6e5b 236
e53890ae 237 set tests "call $n ${testfile}"
853d6e5b 238
e53890ae 239 # Call fun${n}, checking the printed return-value.
338e05af
AC		 240 setup_compiler_kfails structs-tc-tll gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
241 setup_compiler_kfails structs-tc-td gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
e53890ae 242 gdb_test "p/c fun${n}()" "[foo ${n}]" "p/c fun<n>(); ${tests}"
853d6e5b 243
e53890ae
AC		 244 # Check that GDB can always pass a structure to an inferior function.
245 # This test can never fail.
246
247 # Implemented by calling the one parameter function "Fun$N" which
248 # stores its parameter in the global variable "L$N". GDB then
249 # examining that global to confirm that the value is as expected.
250
27d3a1a2 251 gdb_test_no_output "call Fun${n}(foo${n})" "call Fun<n>(foo<n>); ${tests}"
338e05af
AC		 252 setup_compiler_kfails structs-tc-tll gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
253 setup_compiler_kfails structs-tc-td gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
e53890ae 254 gdb_test "p/c L${n}" [foo ${n}] "p/c L<n>; ${tests}"
b4967060 255}
853d6e5b 256
e53890ae
AC		 257# Test GDB's ability to both return a function (with "return" or
258# "finish") and correctly extract/store any corresponding
259# return-value.
260
261# Check that GDB can consistently extract/store structure return
262# values. There are two cases - returned in registers and returned in
263# memory. For the latter case, the return value can't be found and a
264# failure is "expected". However GDB must still both return the
265# function and display the final source and line information.
266
267# N identifies the number of elements in the struct that will be used
268# for the test case. FAILS is a list of target tuples that will fail
269# this test.
270
271# This tests the code paths "which return-value convention?", "extract
272# return-value from registers", and "store return-value in registers".
273# Unlike "test struct calls", this test is expected to "fail" when the
274# return-value is in memory (GDB can't find the location). The test
275# is in three parts: test "return"; test "finish"; check that the two
276# are consistent. GDB can sometimes work for one command and not the
277# other.
278
279proc test_struct_returns { n } {
280 global gdb_prompt
281 global testfile
282
283 set tests "return $n ${testfile}"
284
285
286 # Check that "return" works.
287
288 # GDB must always force the return of a function that has
289 # a struct result. Dependant on the ABI, it may, or may not be
290 # possible to store the return value in a register.
291
292 # The relevant code looks like "L{n} = fun{n}()". The test forces
293 # "fun{n}" to "return" with an explicit value. Since that code
7a9dd1b2 294 # snippet will store the returned value in "L{n}" the return
e53890ae
AC		 295 # is tested by examining "L{n}". This assumes that the
296 # compiler implemented this as fun{n}(&L{n}) and hence that when
297 # the value isn't stored "L{n}" remains unchanged. Also check for
298 # consistency between this and the "finish" case.
299
300 # Get into a call of fun${n}
301 gdb_test "advance fun${n}" \
302 "fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \
303 "advance to fun<n> for return; ${tests}"
304
305 # Check that the program invalidated the relevant global.
1bfbbb9d 306 gdb_test "p/c L${n}" " = [zed $n]" "zed L<n> for return; ${tests}"
e53890ae
AC		 307
308 # Force the "return". This checks that the return is always
309 # performed, and that GDB correctly reported this to the user.
310 # GDB 6.0 and earlier, when the return-value's location wasn't
311 # known, both failed to print a final "source and line" and misplaced
312 # the frame ("No frame").
313
314 # The test is writen so that it only reports one FAIL/PASS for the
315 # entire operation. The value returned is checked further down.
b5c0bfa2
AC		 316 # "return_value_known", if non-zero, indicates that GDB knew where
317 # the return value was located.
e53890ae 318
e53890ae 319 set test "return foo<n>; ${tests}"
b5c0bfa2 320 set return_value_known 1
5266b69c 321 set return_value_unimplemented 0
d422fe19 322 gdb_test_multiple "return foo${n}" "${test}" {
e53890ae
AC		 323 -re "The location" {
324 # Ulgh, a struct return, remember this (still need prompt).
b5c0bfa2 325 set return_value_known 0
e53890ae
AC		 326 exp_continue
327 }
328 -re "A structure or union" {
329 # Ulgh, a struct return, remember this (still need prompt).
b5c0bfa2 330 set return_value_known 0
5266b69c
AC		 331 # Double ulgh. Architecture doesn't use return_value and
332 # hence hasn't implemented small structure return.
333 set return_value_unimplemented 1
e53890ae
AC		 334 exp_continue
335 }
336 -re "Make fun${n} return now.*y or n. $" {
d422fe19 337 gdb_test_multiple "y" "${test}" {
e53890ae
AC		 338 -re "L${n} *= fun${n}.*${gdb_prompt} $" {
339 # Need to step off the function call
340 gdb_test "next" "L.* *= fun.*" "${test}"
341 }
342 -re "L[expr ${n} + 1] *= fun[expr ${n} + 1].*${gdb_prompt} $" {
343 pass "${test}"
344 }
e53890ae
AC		 345 }
346 }
e53890ae
AC		 347 }
348
349 # Check that the return-value is as expected. At this stage we're
350 # just checking that GDB has returned a value consistent with
b5c0bfa2 351 # "return_value_known" set above.
987a9106
JB		 352 #
353 # Note that, when return_value_known is false, we can't make any
354 # assumptions at all about the value L<n>:
355 #
356 # - If the caller passed the address of L<n> directly as fun<n>'s
357 # return value buffer, then L<n> will be unchanged, because we
358 # forced fun<n> to return before it could store anything in it.
359 #
360 # - If the caller passed the address of some temporary buffer to
361 # fun<n>, and then copied the buffer into L<n>, then L<n> will
362 # have been overwritten with whatever garbage was in the
363 # uninitialized buffer.
364 #
365 # - However, if the temporary buffer just happened to have the
366 # "right" value of foo<n> in it, then L<n> will, in fact, have
367 # the value you'd expect to see if the 'return' had worked!
368 # This has actually been observed to happen on the Renesas M32C.
369 #
370 # So, really, anything is acceptable unless return_value_known is
371 # true.
e53890ae 372
e53890ae 373 set test "value foo<n> returned; ${tests}"
d422fe19 374 gdb_test_multiple "p/c L${n}" "${test}" {
e53890ae 375 -re " = [foo ${n}].*${gdb_prompt} $" {
987a9106
JB		 376 # This answer is okay regardless of whether GDB claims to
377 # have set the return value: if it did, then this is what
378 # we expected; and if it didn't, then any answer is okay.
379 pass "${test}"
e53890ae 380 }
987a9106 381 -re " = [any $n].*${gdb_prompt} $" {
b5c0bfa2
AC		 382 if $return_value_known {
383 # This contradicts the above claim that GDB knew
987a9106 384 # the location of the return value.
b5c0bfa2
AC		 385 fail "${test}"
386 } else {
987a9106
JB		 387 # We expected L${n} to be set to garbage, so any
388 # answer is acceptable.
e53890ae 389 pass "${test}"
e53890ae
AC		 390 }
391 }
5266b69c
AC		 392 -re ".*${gdb_prompt} $" {
393 if $return_value_unimplemented {
394 # What a suprize. The architecture hasn't implemented
395 # return_value, and hence has to fail.
396 kfail "$test" gdb/1444
397 } else {
398 fail "$test"
399 }
400 }
e53890ae
AC		 401 }
402
403 # Check that a "finish" works.
404
405 # This is almost but not quite the same as "call struct funcs".
406 # Architectures can have subtle differences in the two code paths.
407
408 # The relevant code snippet is "L{n} = fun{n}()". The program is
409 # advanced into a call to "fun{n}" and then that function is
410 # finished. The returned value that GDB prints, reformatted using
411 # "p/c", is checked.
412
413 # Get into "fun${n}()".
414 gdb_test "advance fun${n}" \
415 "fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \
416 "advance to fun<n> for finish; ${tests}"
417
418 # Check that the program invalidated the relevant global.
e53890ae
AC		 419 gdb_test "p/c L${n}" " = [zed $n]" "zed L<n> for finish; ${tests}"
420
b5c0bfa2
AC		 421 # Finish the function, set 'finish_value_known" to non-empty if
422 # the return-value was found.
423
6882279b 424 set test "finish foo<n>; ${tests}"
b5c0bfa2 425 set finish_value_known 1
d422fe19 426 gdb_test_multiple "finish" "${test}" {
e53890ae
AC		 427 -re "Value returned is .*${gdb_prompt} $" {
428 pass "${test}"
429 }
2f41223f 430 -re "Value returned has type: struct struct$n. Cannot determine contents.*${gdb_prompt} $" {
e53890ae 431 # Expected bad value. For the moment this is ok.
b5c0bfa2 432 set finish_value_known 0
e53890ae
AC		 433 pass "${test}"
434 }
e53890ae
AC		 435 }
436
437 # Re-print the last (return-value) using the more robust
438 # "p/c". If no return value was found, the 'Z' from the previous
439 # check that the variable was cleared, is printed.
6882279b 440 set test "value foo<n> finished; ${tests}"
d422fe19 441 gdb_test_multiple "p/c" "${test}" {
e53890ae 442 -re "[foo ${n}]\[\r\n\]+${gdb_prompt} $" {
b5c0bfa2
AC		 443 if $finish_value_known {
444 pass "${test}"
445 } else {
e53890ae
AC		 446 # This contradicts the above claim that GDB didn't
447 # know the location of the return-value.
448 fail "${test}"
e53890ae
AC		 449 }
450 }
451 -re "[zed ${n}]\[\r\n\]+${gdb_prompt} $" {
452 # The value didn't get found. This is "expected".
b5c0bfa2 453 if $finish_value_known {
e53890ae
AC		 454 # This contradicts the above claim that GDB did
455 # know the location of the return-value.
456 fail "${test}"
b5c0bfa2
AC		 457 } else {
458 pass "${test}"
e53890ae
AC		 459 }
460 }
e53890ae
AC		 461 }
462
463 # Finally, check that "return" and finish" have consistent
464 # behavior.
465
b5c0bfa2
AC		 466 # Since "finish" works in more cases than "return" (see
467 # RETURN_VALUE_ABI_RETURNS_ADDRESS and
468 # RETURN_VALUE_ABI_PRESERVES_ADDRESS), the "return" value being
469 # known implies that the "finish" value is known (but not the
470 # reverse).
e53890ae 471
b5c0bfa2
AC		 472 set test "return value known implies finish value known; ${tests}"
473 if {$return_value_known && ! $finish_value_known} {
e53890ae 474 kfail gdb/1444 "${test}"
b5c0bfa2
AC		 475 } else {
476 pass "${test}"
e53890ae 477 }
b4967060 478}
853d6e5b 479
e53890ae
AC		 480# ABIs pass anything >8 or >16 bytes in memory but below that things
481# randomly use register and/and structure conventions. Check all
482# possible sized char structs in that range. But only a restricted
483# range of the other types.
484
485# NetBSD/PPC returns "unnatural" (3, 5, 6, 7) sized structs in memory.
486
e53890ae
AC		 487# Test every single char struct from 1..17 in size. This is what the
488# original "structs" test was doing.
489
490start_structs_test { tc }
491test_struct_calls 1
492test_struct_calls 2
493test_struct_calls 3
494test_struct_calls 4
495test_struct_calls 5
496test_struct_calls 6
497test_struct_calls 7
498test_struct_calls 8
499test_struct_calls 9
500test_struct_calls 10
501test_struct_calls 11
502test_struct_calls 12
503test_struct_calls 13
504test_struct_calls 14
505test_struct_calls 15
506test_struct_calls 16
507test_struct_calls 17
508test_struct_returns 1
509test_struct_returns 2
510test_struct_returns 3
511test_struct_returns 4
512test_struct_returns 5
513test_struct_returns 6
514test_struct_returns 7
515test_struct_returns 8
516
517
518# Let the fun begin.
519
520# Assuming that any integer struct larger than 8 bytes goes in memory,
521# come up with many and varied combinations of a return struct. For
522# "struct calls" test just beyond that 8 byte boundary, for "struct
523# returns" test up to that boundary.
524
525# For floats, assumed that up to two struct elements can be stored in
526# floating point registers, regardless of their size.
527
528# The approx size of each structure it is computed assumed that tc=1,
529# ts=2, ti=4, tl=4, tll=8, tf=4, td=8, tld=16, and that all fields are
c1862d0f 530# naturally aligned. Padding being added where needed.
e53890ae
AC		 531
532# Approx size: 2, 4, ...
533start_structs_test { ts }
534test_struct_calls 1
535test_struct_calls 2
536test_struct_calls 3
537test_struct_calls 4
538test_struct_calls 5
539test_struct_returns 1
540test_struct_returns 2
541test_struct_returns 3
542test_struct_returns 4
543
544# Approx size: 4, 8, ...
545start_structs_test { ti }
546test_struct_calls 1
547test_struct_calls 2
548test_struct_calls 3
549test_struct_returns 1
550test_struct_returns 2
551
552# Approx size: 4, 8, ...
553start_structs_test { tl }
554test_struct_calls 1
555test_struct_calls 2
556test_struct_calls 3
557test_struct_returns 1
558test_struct_returns 2
559
560# Approx size: 8, 16, ...
561start_structs_test { tll }
562test_struct_calls 1
563test_struct_calls 2
564test_struct_returns 1
565
566# Approx size: 4, 8, ...
567start_structs_test { tf }
568test_struct_calls 1
569test_struct_calls 2
570test_struct_calls 3
571test_struct_returns 1
572test_struct_returns 2
573
574# Approx size: 8, 16, ...
575start_structs_test { td }
576test_struct_calls 1
577test_struct_calls 2
578test_struct_returns 1
579
580# Approx size: 16, 32, ...
581start_structs_test { tld }
582test_struct_calls 1
583test_struct_calls 2
584test_struct_returns 1
585
586# Approx size: 2+1=3, 4, ...
587start_structs_test { ts tc }
588test_struct_calls 2
589test_struct_calls 3
590test_struct_calls 4
591test_struct_calls 5
592test_struct_calls 6
593test_struct_calls 7
594test_struct_calls 8
595test_struct_returns 2
596
597# Approx size: 4+1=5, 6, ...
598start_structs_test { ti tc }
599test_struct_calls 2
600test_struct_calls 3
601test_struct_calls 4
602test_struct_calls 5
603test_struct_calls 6
604test_struct_returns 2
605
606# Approx size: 4+1=5, 6, ...
607start_structs_test { tl tc }
608test_struct_calls 2
609test_struct_calls 3
610test_struct_calls 4
611test_struct_calls 5
612test_struct_calls 6
613test_struct_returns 2
614
615# Approx size: 8+1=9, 10, ...
616start_structs_test { tll tc }
617test_struct_calls 2
618
619# Approx size: 4+1=5, 6, ...
620start_structs_test { tf tc }
621test_struct_calls 2
622test_struct_calls 3
623test_struct_calls 4
624test_struct_calls 5
625test_struct_calls 6
626test_struct_returns 2
627
628# Approx size: 8+1=9, 10, ...
629start_structs_test { td tc }
630test_struct_calls 2
631
632# Approx size: 16+1=17, 18, ...
633start_structs_test { tld tc }
634test_struct_calls 2
635
636# Approx size: (1+1)+2=4, 6, ...
637start_structs_test { tc ts }
638test_struct_calls 2
639test_struct_calls 3
640test_struct_calls 4
641test_struct_calls 5
642test_struct_calls 6
643test_struct_returns 2
644
645# Approx size: (1+3)+4=8, 12, ...
646start_structs_test { tc ti }
647test_struct_calls 2
648test_struct_calls 3
649test_struct_calls 4
650test_struct_returns 2
651
652# Approx size: (1+3)+4=8, 12, ...
653start_structs_test { tc tl }
654test_struct_calls 2
655test_struct_calls 3
656test_struct_calls 4
657test_struct_returns 2
658
659# Approx size: (1+7)+8=16, 24, ...
660start_structs_test { tc tll }
661test_struct_calls 2
662
663# Approx size: (1+3)+4=8, 12, ...
664start_structs_test { tc tf }
665test_struct_calls 2
666test_struct_calls 3
667test_struct_calls 4
668
669# Approx size: (1+7)+8=16, 24, ...
670start_structs_test { tc td }
671test_struct_calls 2
672
673# Approx size: (1+15)+16=32, 48, ...
674start_structs_test { tc tld }
675test_struct_calls 2
676
677# Some float combinations
678
679# Approx size: 8+4=12, 16, ...
e53890ae
AC		 680start_structs_test { td tf }
681test_struct_calls 2
682test_struct_returns 2
74cf1395 683
e53890ae 684# Approx size: (4+4)+8=16, 32, ...
e53890ae
AC		 685start_structs_test { tf td }
686test_struct_calls 2
687test_struct_returns 2
74cf1395
JM		 688
689return 0
GDB Binutils - Deliverables
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