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Fixup testcases outputting own name as a test name and standardize failed compilation...
[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] {
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 ${testfile}]
e53890ae
AC		 69 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable "${flags}"] != "" } {
70 # built the second test case since we can't use prototypes
71 warning "Prototypes not supported, rebuilding with -DNO_PROTOTYPES"
72 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable "${flags} additional_flags=-DNO_PROTOTYPES"] != "" } {
84c93cd5 73 untested "failed to compile"
b60f0898 74 return -1
e53890ae
AC		 75 }
76 }
77
78 # Start with a fresh gdb.
e42c7771 79 gdb_exit
e53890ae
AC		 80 gdb_start
81 gdb_reinitialize_dir $srcdir/$subdir
82 gdb_load ${binfile}
83
84 # Make certain that the output is consistent
27d3a1a2
MS		 85 gdb_test_no_output "set print sevenbit-strings"
86 gdb_test_no_output "set print address off"
87 gdb_test_no_output "set width 0"
88 gdb_test_no_output "set print elements 300"
e53890ae
AC		 89
90 # Advance to main
91 if { ![runto_main] } then {
4ec70201 92 gdb_suppress_tests
e53890ae 93 }
b729099e
MC		 94
95 # Get the debug format
96 get_debug_format
e53890ae 97
8b7dbdc9
JK		 98 # Limit the slow $anychar_re{256} matching for better performance.
99 if $first {
100 set first 0
101
102 # Verify $anychar_re can match all the values of `char' type.
103 gdb_breakpoint [gdb_get_line_number "chartest-done"]
104 gdb_continue_to_breakpoint "chartest-done" ".*chartest-done.*"
105 gdb_test "p chartest" "= {({c = ${anychar_re}}, ){255}{c = ${anychar_re}}}"
106 }
107
e53890ae
AC		 108 # check that at the struct containing all the relevant types is correct
109 set foo_t "type = struct struct[llength ${types}] \{"
110 for {set n 0} {$n<[llength ${types}]} {incr n} {
111 append foo_t "\[\r\n \]+[lindex ${types} $n] [i2a $n];"
112 }
113 append foo_t "\[\r\n \]+\}"
114 gdb_test "ptype foo[llength ${types}]" "${foo_t}" \
115 "ptype foo[llength ${types}]; ${testfile}"
74cf1395
JM		 116}
117
e53890ae
AC		 118# The expected value for fun${n}, L${n} and foo${n}. First element is
119# empty to make indexing easier. "foo" returns the modified value,
120# "zed" returns the invalid value.
853d6e5b 121
e53890ae
AC		 122proc foo { n } {
123 return [lindex {
124 "{}"
125 "{a = 49 '1'}"
126 "{a = 97 'a', b = 50 '2'}"
127 "{a = 49 '1', b = 98 'b', c = 51 '3'}"
128 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4'}"
129 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5'}"
130 "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6'}"
131 "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7'}"
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'}"
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'}"
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'}"
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'}"
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'}"
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'}"
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'}"
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'}"
140 "{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'}"
141 "{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'}"
142 } $n]
143}
144
145proc zed { n } {
146 return [lindex {
147 "{}"
148 "{a = 90 'Z'}"
149 "{a = 90 'Z', b = 90 'Z'}"
150 "{a = 90 'Z', b = 90 'Z', c = 90 'Z'}"
151 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z'}"
152 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z'}"
153 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z'}"
154 "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 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'}"
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'}"
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'}"
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'}"
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'}"
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'}"
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'}"
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'}"
163 "{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'}"
164 "{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'}"
165 } $n]
166}
167
987a9106 168proc any { n } {
8b7dbdc9
JK		 169 global anychar_re
170 set ac $anychar_re
171 return [lindex [list \
172 "{}" \
173 "{a = ${ac}}" \
174 "{a = ${ac}, b = ${ac}}" \
175 "{a = ${ac}, b = ${ac}, c = ${ac}}" \
176 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}}" \
177 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}}" \
178 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}}" \
179 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}}" \
180 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}}" \
181 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}}" \
182 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}}" \
183 "{a = ${ac}, b = ${ac}, c = ${ac}, d = ${ac}, e = ${ac}, f = ${ac}, g = ${ac}, h = ${ac}, i = ${ac}, j = ${ac}, k = ${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}}" \
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}}" \
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}}" \
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}}" \
188 "{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}}" \
189 "{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}}" \
190 ] $n]
987a9106
JB		 191}
192
e53890ae
AC		 193# Given N (0..25), return the corresponding alphabetic letter in lower
194# or upper case. This is ment to be i18n proof.
195
196proc i2a { n } {
197 return [string range "abcdefghijklmnopqrstuvwxyz" $n $n]
198}
199
200proc I2A { n } {
201 return [string toupper [i2a $n]]
202}
203
204
205# Use the file name, compiler and tuples to set up any needed KFAILs.
206
e53890ae
AC		 207proc setup_compiler_kfails { file compiler format tuples bug } {
208 global testfile
209 if {[string match $file $testfile] && [test_compiler_info $compiler] && [test_debug_format $format]} {
bbc8b958 210 foreach f $tuples { setup_kfail $bug $f }
e53890ae
AC		 211 }
212}
213
214# Test GDB's ability to make inferior function calls to functions
215# returning (or passing in a single structs.
216
217# N identifies the number of elements in the struct that will be used
218# for the test case. FAILS is a list of target tuples that will fail
219# this test.
853d6e5b 220
e53890ae
AC		 221# start_structs_test() will have previously built a program with a
222# specified combination of types for those elements. To ensure
223# robustness of the output, "p/c" is used.
224
225# This tests the code paths "which return-value convention?" and
226# "extract return-value from registers" called by "infcall.c".
227
228proc test_struct_calls { n } {
229 global testfile
b4967060 230 global gdb_prompt
853d6e5b 231
e53890ae
AC		 232 # Check that GDB can always extract a struct-return value from an
233 # inferior function call. Since GDB always knows the location of an
234 # inferior function call's return value these should never fail
235
236 # Implemented by calling the parameterless function "fun$N" and then
237 # examining the return value printed by GDB.
853d6e5b 238
e53890ae 239 set tests "call $n ${testfile}"
853d6e5b 240
e53890ae 241 # Call fun${n}, checking the printed return-value.
338e05af
AC		 242 setup_compiler_kfails structs-tc-tll gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
243 setup_compiler_kfails structs-tc-td gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
e53890ae 244 gdb_test "p/c fun${n}()" "[foo ${n}]" "p/c fun<n>(); ${tests}"
853d6e5b 245
e53890ae
AC		 246 # Check that GDB can always pass a structure to an inferior function.
247 # This test can never fail.
248
249 # Implemented by calling the one parameter function "Fun$N" which
250 # stores its parameter in the global variable "L$N". GDB then
251 # examining that global to confirm that the value is as expected.
252
27d3a1a2 253 gdb_test_no_output "call Fun${n}(foo${n})" "call Fun<n>(foo<n>); ${tests}"
338e05af
AC		 254 setup_compiler_kfails structs-tc-tll gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
255 setup_compiler_kfails structs-tc-td gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
e53890ae 256 gdb_test "p/c L${n}" [foo ${n}] "p/c L<n>; ${tests}"
b4967060 257}
853d6e5b 258
e53890ae
AC		 259# Test GDB's ability to both return a function (with "return" or
260# "finish") and correctly extract/store any corresponding
261# return-value.
262
263# Check that GDB can consistently extract/store structure return
264# values. There are two cases - returned in registers and returned in
265# memory. For the latter case, the return value can't be found and a
266# failure is "expected". However GDB must still both return the
267# function and display the final source and line information.
268
269# N identifies the number of elements in the struct that will be used
270# for the test case. FAILS is a list of target tuples that will fail
271# this test.
272
273# This tests the code paths "which return-value convention?", "extract
274# return-value from registers", and "store return-value in registers".
275# Unlike "test struct calls", this test is expected to "fail" when the
276# return-value is in memory (GDB can't find the location). The test
277# is in three parts: test "return"; test "finish"; check that the two
278# are consistent. GDB can sometimes work for one command and not the
279# other.
280
281proc test_struct_returns { n } {
282 global gdb_prompt
283 global testfile
284
285 set tests "return $n ${testfile}"
286
287
288 # Check that "return" works.
289
290 # GDB must always force the return of a function that has
291 # a struct result. Dependant on the ABI, it may, or may not be
292 # possible to store the return value in a register.
293
294 # The relevant code looks like "L{n} = fun{n}()". The test forces
295 # "fun{n}" to "return" with an explicit value. Since that code
7a9dd1b2 296 # snippet will store the returned value in "L{n}" the return
e53890ae
AC		 297 # is tested by examining "L{n}". This assumes that the
298 # compiler implemented this as fun{n}(&L{n}) and hence that when
299 # the value isn't stored "L{n}" remains unchanged. Also check for
300 # consistency between this and the "finish" case.
301
302 # Get into a call of fun${n}
303 gdb_test "advance fun${n}" \
304 "fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \
305 "advance to fun<n> for return; ${tests}"
306
307 # Check that the program invalidated the relevant global.
1bfbbb9d 308 gdb_test "p/c L${n}" " = [zed $n]" "zed L<n> for return; ${tests}"
e53890ae
AC		 309
310 # Force the "return". This checks that the return is always
311 # performed, and that GDB correctly reported this to the user.
312 # GDB 6.0 and earlier, when the return-value's location wasn't
313 # known, both failed to print a final "source and line" and misplaced
314 # the frame ("No frame").
315
316 # The test is writen so that it only reports one FAIL/PASS for the
317 # entire operation. The value returned is checked further down.
b5c0bfa2
AC		 318 # "return_value_known", if non-zero, indicates that GDB knew where
319 # the return value was located.
e53890ae 320
e53890ae 321 set test "return foo<n>; ${tests}"
b5c0bfa2 322 set return_value_known 1
5266b69c 323 set return_value_unimplemented 0
d422fe19 324 gdb_test_multiple "return foo${n}" "${test}" {
e53890ae
AC		 325 -re "The location" {
326 # Ulgh, a struct return, remember this (still need prompt).
b5c0bfa2 327 set return_value_known 0
e53890ae
AC		 328 exp_continue
329 }
330 -re "A structure or union" {
331 # Ulgh, a struct return, remember this (still need prompt).
b5c0bfa2 332 set return_value_known 0
5266b69c
AC		 333 # Double ulgh. Architecture doesn't use return_value and
334 # hence hasn't implemented small structure return.
335 set return_value_unimplemented 1
e53890ae
AC		 336 exp_continue
337 }
338 -re "Make fun${n} return now.*y or n. $" {
d422fe19 339 gdb_test_multiple "y" "${test}" {
e53890ae
AC		 340 -re "L${n} *= fun${n}.*${gdb_prompt} $" {
341 # Need to step off the function call
342 gdb_test "next" "L.* *= fun.*" "${test}"
343 }
344 -re "L[expr ${n} + 1] *= fun[expr ${n} + 1].*${gdb_prompt} $" {
345 pass "${test}"
346 }
e53890ae
AC		 347 }
348 }
e53890ae
AC		 349 }
350
351 # Check that the return-value is as expected. At this stage we're
352 # just checking that GDB has returned a value consistent with
b5c0bfa2 353 # "return_value_known" set above.
987a9106
JB		 354 #
355 # Note that, when return_value_known is false, we can't make any
356 # assumptions at all about the value L<n>:
357 #
358 # - If the caller passed the address of L<n> directly as fun<n>'s
359 # return value buffer, then L<n> will be unchanged, because we
360 # forced fun<n> to return before it could store anything in it.
361 #
362 # - If the caller passed the address of some temporary buffer to
363 # fun<n>, and then copied the buffer into L<n>, then L<n> will
364 # have been overwritten with whatever garbage was in the
365 # uninitialized buffer.
366 #
367 # - However, if the temporary buffer just happened to have the
368 # "right" value of foo<n> in it, then L<n> will, in fact, have
369 # the value you'd expect to see if the 'return' had worked!
370 # This has actually been observed to happen on the Renesas M32C.
371 #
372 # So, really, anything is acceptable unless return_value_known is
373 # true.
e53890ae 374
e53890ae 375 set test "value foo<n> returned; ${tests}"
d422fe19 376 gdb_test_multiple "p/c L${n}" "${test}" {
e53890ae 377 -re " = [foo ${n}].*${gdb_prompt} $" {
987a9106
JB		 378 # This answer is okay regardless of whether GDB claims to
379 # have set the return value: if it did, then this is what
380 # we expected; and if it didn't, then any answer is okay.
381 pass "${test}"
e53890ae 382 }
987a9106 383 -re " = [any $n].*${gdb_prompt} $" {
b5c0bfa2
AC		 384 if $return_value_known {
385 # This contradicts the above claim that GDB knew
987a9106 386 # the location of the return value.
b5c0bfa2
AC		 387 fail "${test}"
388 } else {
987a9106
JB		 389 # We expected L${n} to be set to garbage, so any
390 # answer is acceptable.
e53890ae 391 pass "${test}"
e53890ae
AC		 392 }
393 }
5266b69c
AC		 394 -re ".*${gdb_prompt} $" {
395 if $return_value_unimplemented {
396 # What a suprize. The architecture hasn't implemented
397 # return_value, and hence has to fail.
398 kfail "$test" gdb/1444
399 } else {
400 fail "$test"
401 }
402 }
e53890ae
AC		 403 }
404
405 # Check that a "finish" works.
406
407 # This is almost but not quite the same as "call struct funcs".
408 # Architectures can have subtle differences in the two code paths.
409
410 # The relevant code snippet is "L{n} = fun{n}()". The program is
411 # advanced into a call to "fun{n}" and then that function is
412 # finished. The returned value that GDB prints, reformatted using
413 # "p/c", is checked.
414
415 # Get into "fun${n}()".
416 gdb_test "advance fun${n}" \
417 "fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \
418 "advance to fun<n> for finish; ${tests}"
419
420 # Check that the program invalidated the relevant global.
e53890ae
AC		 421 gdb_test "p/c L${n}" " = [zed $n]" "zed L<n> for finish; ${tests}"
422
b5c0bfa2
AC		 423 # Finish the function, set 'finish_value_known" to non-empty if
424 # the return-value was found.
425
6882279b 426 set test "finish foo<n>; ${tests}"
b5c0bfa2 427 set finish_value_known 1
d422fe19 428 gdb_test_multiple "finish" "${test}" {
e53890ae
AC		 429 -re "Value returned is .*${gdb_prompt} $" {
430 pass "${test}"
431 }
2f41223f 432 -re "Value returned has type: struct struct$n. Cannot determine contents.*${gdb_prompt} $" {
e53890ae 433 # Expected bad value. For the moment this is ok.
b5c0bfa2 434 set finish_value_known 0
e53890ae
AC		 435 pass "${test}"
436 }
e53890ae
AC		 437 }
438
439 # Re-print the last (return-value) using the more robust
440 # "p/c". If no return value was found, the 'Z' from the previous
441 # check that the variable was cleared, is printed.
6882279b 442 set test "value foo<n> finished; ${tests}"
d422fe19 443 gdb_test_multiple "p/c" "${test}" {
e53890ae 444 -re "[foo ${n}]\[\r\n\]+${gdb_prompt} $" {
b5c0bfa2
AC		 445 if $finish_value_known {
446 pass "${test}"
447 } else {
e53890ae
AC		 448 # This contradicts the above claim that GDB didn't
449 # know the location of the return-value.
450 fail "${test}"
e53890ae
AC		 451 }
452 }
453 -re "[zed ${n}]\[\r\n\]+${gdb_prompt} $" {
454 # The value didn't get found. This is "expected".
b5c0bfa2 455 if $finish_value_known {
e53890ae
AC		 456 # This contradicts the above claim that GDB did
457 # know the location of the return-value.
458 fail "${test}"
b5c0bfa2
AC		 459 } else {
460 pass "${test}"
e53890ae
AC		 461 }
462 }
e53890ae
AC		 463 }
464
465 # Finally, check that "return" and finish" have consistent
466 # behavior.
467
b5c0bfa2
AC		 468 # Since "finish" works in more cases than "return" (see
469 # RETURN_VALUE_ABI_RETURNS_ADDRESS and
470 # RETURN_VALUE_ABI_PRESERVES_ADDRESS), the "return" value being
471 # known implies that the "finish" value is known (but not the
472 # reverse).
e53890ae 473
b5c0bfa2
AC		 474 set test "return value known implies finish value known; ${tests}"
475 if {$return_value_known && ! $finish_value_known} {
e53890ae 476 kfail gdb/1444 "${test}"
b5c0bfa2
AC		 477 } else {
478 pass "${test}"
e53890ae 479 }
b4967060 480}
853d6e5b 481
e53890ae
AC		 482# ABIs pass anything >8 or >16 bytes in memory but below that things
483# randomly use register and/and structure conventions. Check all
484# possible sized char structs in that range. But only a restricted
485# range of the other types.
486
487# NetBSD/PPC returns "unnatural" (3, 5, 6, 7) sized structs in memory.
488
e53890ae
AC		 489# Test every single char struct from 1..17 in size. This is what the
490# original "structs" test was doing.
491
492start_structs_test { tc }
493test_struct_calls 1
494test_struct_calls 2
495test_struct_calls 3
496test_struct_calls 4
497test_struct_calls 5
498test_struct_calls 6
499test_struct_calls 7
500test_struct_calls 8
501test_struct_calls 9
502test_struct_calls 10
503test_struct_calls 11
504test_struct_calls 12
505test_struct_calls 13
506test_struct_calls 14
507test_struct_calls 15
508test_struct_calls 16
509test_struct_calls 17
510test_struct_returns 1
511test_struct_returns 2
512test_struct_returns 3
513test_struct_returns 4
514test_struct_returns 5
515test_struct_returns 6
516test_struct_returns 7
517test_struct_returns 8
518
519
520# Let the fun begin.
521
522# Assuming that any integer struct larger than 8 bytes goes in memory,
523# come up with many and varied combinations of a return struct. For
524# "struct calls" test just beyond that 8 byte boundary, for "struct
525# returns" test up to that boundary.
526
527# For floats, assumed that up to two struct elements can be stored in
528# floating point registers, regardless of their size.
529
530# The approx size of each structure it is computed assumed that tc=1,
531# ts=2, ti=4, tl=4, tll=8, tf=4, td=8, tld=16, and that all fields are
c1862d0f 532# naturally aligned. Padding being added where needed.
e53890ae
AC		 533
534# Approx size: 2, 4, ...
535start_structs_test { ts }
536test_struct_calls 1
537test_struct_calls 2
538test_struct_calls 3
539test_struct_calls 4
540test_struct_calls 5
541test_struct_returns 1
542test_struct_returns 2
543test_struct_returns 3
544test_struct_returns 4
545
546# Approx size: 4, 8, ...
547start_structs_test { ti }
548test_struct_calls 1
549test_struct_calls 2
550test_struct_calls 3
551test_struct_returns 1
552test_struct_returns 2
553
554# Approx size: 4, 8, ...
555start_structs_test { tl }
556test_struct_calls 1
557test_struct_calls 2
558test_struct_calls 3
559test_struct_returns 1
560test_struct_returns 2
561
562# Approx size: 8, 16, ...
563start_structs_test { tll }
564test_struct_calls 1
565test_struct_calls 2
566test_struct_returns 1
567
62df7e21
YQ		 568if { !$skip_float_test } {
569 # Approx size: 4, 8, ...
570 start_structs_test { tf }
571 test_struct_calls 1
572 test_struct_calls 2
573 test_struct_calls 3
574 test_struct_returns 1
575 test_struct_returns 2
576
577 # Approx size: 8, 16, ...
578 start_structs_test { td }
579 test_struct_calls 1
580 test_struct_calls 2
581 test_struct_returns 1
582
583 # Approx size: 16, 32, ...
584 start_structs_test { tld }
585 test_struct_calls 1
586 test_struct_calls 2
587 test_struct_returns 1
588}
e53890ae
AC		 589
590# Approx size: 2+1=3, 4, ...
591start_structs_test { ts tc }
592test_struct_calls 2
593test_struct_calls 3
594test_struct_calls 4
595test_struct_calls 5
596test_struct_calls 6
597test_struct_calls 7
598test_struct_calls 8
599test_struct_returns 2
600
601# Approx size: 4+1=5, 6, ...
602start_structs_test { ti tc }
603test_struct_calls 2
604test_struct_calls 3
605test_struct_calls 4
606test_struct_calls 5
607test_struct_calls 6
608test_struct_returns 2
609
610# Approx size: 4+1=5, 6, ...
611start_structs_test { tl tc }
612test_struct_calls 2
613test_struct_calls 3
614test_struct_calls 4
615test_struct_calls 5
616test_struct_calls 6
617test_struct_returns 2
618
619# Approx size: 8+1=9, 10, ...
620start_structs_test { tll tc }
621test_struct_calls 2
622
62df7e21
YQ		 623if { !$skip_float_test } {
624 # Approx size: 4+1=5, 6, ...
625 start_structs_test { tf tc }
626 test_struct_calls 2
627 test_struct_calls 3
628 test_struct_calls 4
629 test_struct_calls 5
630 test_struct_calls 6
631 test_struct_returns 2
632
633 # Approx size: 8+1=9, 10, ...
634 start_structs_test { td tc }
635 test_struct_calls 2
636
637 # Approx size: 16+1=17, 18, ...
638 start_structs_test { tld tc }
639 test_struct_calls 2
640}
e53890ae
AC		 641
642# Approx size: (1+1)+2=4, 6, ...
643start_structs_test { tc ts }
644test_struct_calls 2
645test_struct_calls 3
646test_struct_calls 4
647test_struct_calls 5
648test_struct_calls 6
649test_struct_returns 2
650
651# Approx size: (1+3)+4=8, 12, ...
652start_structs_test { tc ti }
653test_struct_calls 2
654test_struct_calls 3
655test_struct_calls 4
656test_struct_returns 2
657
658# Approx size: (1+3)+4=8, 12, ...
659start_structs_test { tc tl }
660test_struct_calls 2
661test_struct_calls 3
662test_struct_calls 4
663test_struct_returns 2
664
665# Approx size: (1+7)+8=16, 24, ...
666start_structs_test { tc tll }
667test_struct_calls 2
668
62df7e21
YQ		 669if { !$skip_float_test } {
670 # Approx size: (1+3)+4=8, 12, ...
671 start_structs_test { tc tf }
672 test_struct_calls 2
673 test_struct_calls 3
674 test_struct_calls 4
e53890ae 675
62df7e21
YQ		 676 # Approx size: (1+7)+8=16, 24, ...
677 start_structs_test { tc td }
678 test_struct_calls 2
e53890ae 679
62df7e21
YQ		 680 # Approx size: (1+15)+16=32, 48, ...
681 start_structs_test { tc tld }
682 test_struct_calls 2
e53890ae 683
62df7e21 684 # Some float combinations
74cf1395 685
62df7e21
YQ		 686 # Approx size: 8+4=12, 16, ...
687 start_structs_test { td tf }
688 test_struct_calls 2
689 test_struct_returns 2
74cf1395 690
62df7e21
YQ		 691 # Approx size: (4+4)+8=16, 32, ...
692 start_structs_test { tf td }
693 test_struct_calls 2
694 test_struct_returns 2
695}
74cf1395 696return 0
GDB Binutils - Deliverables
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