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frame.h: Forward-declare struct ui_out
[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.python / py-value.exp
CommitLineData
618f726f 1# Copyright (C) 2008-2016 Free Software Foundation, Inc.
a08702d6
TJB		 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 3 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, see <http://www.gnu.org/licenses/>.
15
16# This file is part of the GDB testsuite. It tests the mechanism
17# exposing values to Python.
18
a2c09bd0
DE		 19load_lib gdb-python.exp
20
b4a58790 21standard_testfile
db8e4570 22
673dc4a0
YQ		 23set has_argv0 [gdb_has_argv0]
24
db8e4570 25# Build inferior to language specification.
ac52f9a2 26# LANG is one of "c" or "c++".
db8e4570
UW		 27proc build_inferior {exefile lang} {
28 global srcdir subdir srcfile testfile hex
29
ac52f9a2
DE		 30 # Use different names for .o files based on the language.
31 # For Fission, the debug info goes in foo.dwo and we don't want,
32 # for example, a C++ compile to clobber the dwo of a C compile.
33 # ref: http://gcc.gnu.org/wiki/DebugFission
34 switch ${lang} {
35 "c" { set filename ${testfile}.o }
36 "c++" { set filename ${testfile}-cxx.o }
37 }
38 set objfile [standard_output_file $filename]
39
40 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${objfile}" object "debug $lang"] != ""
41 || [gdb_compile "${objfile}" "${exefile}" executable "debug $lang"] != "" } {
db8e4570
UW		 42 untested "Couldn't compile ${srcfile} in $lang mode"
43 return -1
44 }
ac52f9a2 45 return 0
a08702d6
TJB		 46}
47
a08702d6
TJB		 48proc test_value_creation {} {
49 global gdb_prompt
9325cb04 50 global gdb_py_is_py3k
a08702d6
TJB		 51
52 gdb_py_test_silent_cmd "python i = gdb.Value (True)" "create boolean value" 1
53 gdb_py_test_silent_cmd "python i = gdb.Value (5)" "create integer value" 1
9325cb04
PK		 54 if { $gdb_py_is_py3k == 0 } {
55 gdb_py_test_silent_cmd "python i = gdb.Value (5L)" "create long value" 1
56 }
a08702d6
TJB		 57 gdb_py_test_silent_cmd "python f = gdb.Value (1.25)" "create double value" 1
58 gdb_py_test_silent_cmd "python a = gdb.Value ('string test')" "create 8-bit string value" 1
9325cb04
PK		 59 gdb_test "python print (a)" "\"string test\"" "print 8-bit string"
60 gdb_test "python print (a.__class__)" "<(type|class) 'gdb.Value'>" "verify type of 8-bit string"
61 if { $gdb_py_is_py3k == 0 } {
62 gdb_py_test_silent_cmd "python a = gdb.Value (u'unicode test')" "create unicode value" 1
63 gdb_test "python print (a)" "\"unicode test\"" "print Unicode string"
64 gdb_test "python print (a.__class__)" "<(type|class) 'gdb.Value'>" "verify type of unicode string"
65 }
c0c6f777
TJB		 66
67 # Test address attribute is None in a non-addressable value
9325cb04 68 gdb_test "python print ('result = %s' % i.address)" "= None" "Test address attribute in non-addressable value"
a08702d6
TJB		 69}
70
71proc test_value_numeric_ops {} {
72 global gdb_prompt
73
74 gdb_py_test_silent_cmd "python i = gdb.Value (5)" "create first integer value" 0
75 gdb_py_test_silent_cmd "python j = gdb.Value (2)" "create second integer value" 0
76 gdb_py_test_silent_cmd "python f = gdb.Value (1.25)" "create first double value" 0
77 gdb_py_test_silent_cmd "python g = gdb.Value (2.5)" "create second double value" 0
9325cb04
PK		 78 gdb_test "python print ('result = ' + str(i+j))" " = 7" "add two integer values"
79 gdb_test "python print ((i+j).__class__)" "<(type|class) 'gdb.Value'>" "verify type of integer add result"
80
81 gdb_test "python print ('result = ' + str(f+g))" " = 3.75" "add two double values"
82 gdb_test "python print ('result = ' + str(i-j))" " = 3" "subtract two integer values"
83 gdb_test "python print ('result = ' + str(f-g))" " = -1.25" "subtract two double values"
84 gdb_test "python print ('result = ' + str(i*j))" " = 10" "multiply two integer values"
85 gdb_test "python print ('result = ' + str(f*g))" " = 3.125" "multiply two double values"
86 gdb_test "python print ('result = ' + str(i/j))" " = 2" "divide two integer values"
87 gdb_test "python print ('result = ' + str(f/g))" " = 0.5" "divide two double values"
88 gdb_test "python print ('result = ' + str(i%j))" " = 1" "take remainder of two integer values"
a08702d6
TJB		 89 # Remainder of float is implemented in Python but not in GDB's value system.
90
9325cb04
PK		 91 gdb_test "python print ('result = ' + str(i**j))" " = 25" "integer value raised to the power of another integer value"
92 gdb_test "python print ('result = ' + str(g**j))" " = 6.25" "double value raised to the power of integer value"
a08702d6 93
9325cb04
PK		 94 gdb_test "python print ('result = ' + str(-i))" " = -5" "negated integer value"
95 gdb_test "python print ('result = ' + str(+i))" " = 5" "positive integer value"
96 gdb_test "python print ('result = ' + str(-f))" " = -1.25" "negated double value"
97 gdb_test "python print ('result = ' + str(+f))" " = 1.25" "positive double value"
98 gdb_test "python print ('result = ' + str(abs(j-i)))" " = 3" "absolute of integer value"
99 gdb_test "python print ('result = ' + str(abs(f-g)))" " = 1.25" "absolute of double value"
a08702d6
TJB		 100
101 # Test gdb.Value mixed with Python types.
102
9325cb04
PK		 103 gdb_test "python print ('result = ' + str(i-1))" " = 4" "subtract integer value from python integer"
104 gdb_test "python print ((i-1).__class__)" "<(type|class) 'gdb.Value'>" "verify type of mixed integer subtraction result"
105 gdb_test "python print ('result = ' + str(f+1.5))" " = 2.75" "add double value with python float"
a08702d6 106
9325cb04
PK		 107 gdb_test "python print ('result = ' + str(1-i))" " = -4" "subtract python integer from integer value"
108 gdb_test "python print ('result = ' + str(1.5+f))" " = 2.75" "add python float with double value"
a08702d6 109
08c637de
TJB		 110 # Conversion test.
111 gdb_test "print evalue" " = TWO"
89493308 112 gdb_test_no_output "python evalue = gdb.history (0)"
9325cb04 113 gdb_test "python print (int (evalue))" "2"
08c637de 114
a08702d6
TJB		 115 # Test pointer arithmethic
116
117 # First, obtain the pointers
de7ff789 118 gdb_test "print (void *) 2" ".*" ""
35ec993f 119 gdb_test_no_output "python a = gdb.history (0)" ""
de7ff789 120 gdb_test "print (void *) 5" ".*" ""
35ec993f 121 gdb_test_no_output "python b = gdb.history (0)" ""
a08702d6 122
9325cb04
PK		 123 gdb_test "python print ('result = ' + str(a+5))" " = 0x7( <.*>)?" "add pointer value with python integer"
124 gdb_test "python print ('result = ' + str(b-2))" " = 0x3( <.*>)?" "subtract python integer from pointer value"
125 gdb_test "python print ('result = ' + str(b-a))" " = 3" "subtract two pointer values"
a08702d6 126
ddae9462
TT		 127 gdb_test "python print ('result = ' + 'result'\[gdb.Value(0)\])" \
128 "result = r" "use value as string index"
129 gdb_test "python print ('result = ' + str((1,2,3)\[gdb.Value(0)\]))" \
130 "result = 1" "use value as tuple index"
131 gdb_test "python print ('result = ' + str(\[1,2,3\]\[gdb.Value(0)\]))" \
132 "result = 1" "use value as array index"
133
a08702d6
TJB		 134 # Test some invalid operations.
135
9325cb04 136 gdb_test_multiple "python print ('result = ' + str(i+'foo'))" "catch error in python type conversion" {
a08702d6
TJB		 137 -re "Argument to arithmetic operation not a number or boolean.*$gdb_prompt $" {pass "catch error in python type conversion"}
138 -re "result = .*$gdb_prompt $" {fail "catch error in python type conversion"}
139 -re "$gdb_prompt $" {fail "catch error in python type conversion"}
140 }
141
9325cb04 142 gdb_test_multiple "python print ('result = ' + str(i+gdb.Value('foo')))" "catch throw of GDB error" {
a08702d6
TJB		 143 -re "Traceback.*$gdb_prompt $" {pass "catch throw of GDB error"}
144 -re "result = .*$gdb_prompt $" {fail "catch throw of GDB error"}
145 -re "$gdb_prompt $" {fail "catch throw of GDB error"}
146 }
147}
148
149proc test_value_boolean {} {
150 # First, define a useful function to test booleans.
151 gdb_py_test_multiple "define function to test booleans" \
152 "python" "" \
153 "def test_bool (val):" "" \
154 " if val:" "" \
9325cb04 155 " print ('yay')" "" \
a08702d6 156 " else:" "" \
9325cb04 157 " print ('nay')" "" \
a08702d6
TJB		 158 "end" ""
159
160 gdb_test "py test_bool (gdb.Value (True))" "yay" "check evaluation of true boolean value in expression"
161
162 gdb_test "py test_bool (gdb.Value (False))" "nay" "check evaluation of false boolean value in expression"
163
164 gdb_test "py test_bool (gdb.Value (5))" "yay" "check evaluation of true integer value in expression"
165
166 gdb_test "py test_bool (gdb.Value (0))" "nay" "check evaluation of false integer value in expression"
167
168 gdb_test "py test_bool (gdb.Value (5.2))" "yay" "check evaluation of true integer value in expression"
169
170 gdb_test "py test_bool (gdb.Value (0.0))" "nay" "check evaluation of false integer value in expression"
171}
172
173proc test_value_compare {} {
9325cb04
PK		 174 gdb_test "py print (gdb.Value (1) < gdb.Value (1))" "False" "less than, equal"
175 gdb_test "py print (gdb.Value (1) < gdb.Value (2))" "True" "less than, less"
176 gdb_test "py print (gdb.Value (2) < gdb.Value (1))" "False" "less than, greater"
177 gdb_test "py print (gdb.Value (2) < None)" "False" "less than, None"
178
179 gdb_test "py print (gdb.Value (1) <= gdb.Value (1))" "True" "less or equal, equal"
180 gdb_test "py print (gdb.Value (1) <= gdb.Value (2))" "True" "less or equal, less"
181 gdb_test "py print (gdb.Value (2) <= gdb.Value (1))" "False" "less or equal, greater"
182 gdb_test "py print (gdb.Value (2) <= None)" "False" "less or equal, None"
183
184 gdb_test "py print (gdb.Value (1) == gdb.Value (1))" "True" "equality of gdb.Values"
185 gdb_test "py print (gdb.Value (1) == gdb.Value (2))" "False" "inequality of gdb.Values"
186 gdb_test "py print (gdb.Value (1) == 1.0)" "True" "equality of gdb.Value with Python value"
187 gdb_test "py print (gdb.Value (1) == 2)" "False" "inequality of gdb.Value with Python value"
188 gdb_test "py print (gdb.Value (1) == None)" "False" "inequality of gdb.Value with None"
189
190 gdb_test "py print (gdb.Value (1) != gdb.Value (1))" "False" "inequality, false"
191 gdb_test "py print (gdb.Value (1) != gdb.Value (2))" "True" "inequality, true"
192 gdb_test "py print (gdb.Value (1) != None)" "True" "inequality, None"
193
194 gdb_test "py print (gdb.Value (1) > gdb.Value (1))" "False" "greater than, equal"
195 gdb_test "py print (gdb.Value (1) > gdb.Value (2))" "False" "greater than, less"
196 gdb_test "py print (gdb.Value (2) > gdb.Value (1))" "True" "greater than, greater"
197 gdb_test "py print (gdb.Value (2) > None)" "True" "greater than, None"
198
199 gdb_test "py print (gdb.Value (1) >= gdb.Value (1))" "True" "greater or equal, equal"
200 gdb_test "py print (gdb.Value (1) >= gdb.Value (2))" "False" "greater or equal, less"
201 gdb_test "py print (gdb.Value (2) >= gdb.Value (1))" "True" "greater or equal, greater"
202 gdb_test "py print (gdb.Value (2) >= None)" "True" "greater or equal, None"
a08702d6
TJB		 203}
204
205proc test_value_in_inferior {} {
206 global gdb_prompt
207 global testfile
9325cb04 208 global gdb_py_is_py3k
a08702d6
TJB		 209
210 gdb_breakpoint [gdb_get_line_number "break to inspect struct and union"]
a08702d6
TJB		 211
212 gdb_continue_to_breakpoint "break to inspect struct and union"
213
214 # Just get inferior variable s in the value history, available to python.
215 gdb_test "print s" " = {a = 3, b = 5}" ""
216
08c637de 217 gdb_py_test_silent_cmd "python s = gdb.history (0)" "get value from history" 1
a08702d6 218
9325cb04
PK		 219 gdb_test "python print ('result = ' + str(s\['a'\]))" " = 3" "access element inside struct using 8-bit string name"
220 if { $gdb_py_is_py3k == 0 } {
221 gdb_test "python print ('result = ' + str(s\[u'a'\]))" " = 3" "access element inside struct using unicode name"
222 }
a08702d6
TJB		 223
224 # Test dereferencing the argv pointer
225
226 # Just get inferior variable argv the value history, available to python.
227 gdb_test "print argv" " = \\(char \\*\\*\\) 0x.*" ""
228
08c637de 229 gdb_py_test_silent_cmd "python argv = gdb.history (0)" "" 0
a08702d6
TJB		 230 gdb_py_test_silent_cmd "python arg0 = argv.dereference ()" "dereference value" 1
231
232 # Check that the dereferenced value is sane
673dc4a0
YQ		 233 global has_argv0
234 set test "verify dereferenced value"
235 if { $has_argv0 } {
c0ecb95f
JK		 236 gdb_test_no_output "set print elements unlimited" ""
237 gdb_test_no_output "set print repeats unlimited" ""
673dc4a0
YQ		 238 gdb_test "python print (arg0)" "0x.*$testfile\"" $test
239 } else {
240 unsupported $test
70362913 241 }
def2b000
TJB		 242
243 # Smoke-test is_optimized_out attribute
9325cb04 244 gdb_test "python print ('result = %s' % arg0.is_optimized_out)" "= False" "Test is_optimized_out attribute"
c0c6f777
TJB		 245
246 # Test address attribute
9325cb04 247 gdb_test "python print ('result = %s' % arg0.address)" "= 0x\[\[:xdigit:\]\]+" "Test address attribute"
fbb8f299 248
46f886f1
JK		 249 # Test displaying a variable that is temporarily at a bad address.
250 # But if we can examine what's at memory address 0, then we'll also be
251 # able to display it without error. Don't run the test in that case.
20c6f1e1 252 set can_read_0 [is_address_zero_readable]
46f886f1 253
621c8364 254 # Test memory error.
46f886f1
JK		 255 set test "parse_and_eval with memory error"
256 if {$can_read_0} {
257 untested $test
258 } else {
9325cb04 259 gdb_test "python print (gdb.parse_and_eval('*(int*)0'))" "gdb.MemoryError: Cannot access memory at address 0x0.*" $test
46f886f1 260 }
621c8364 261
54d8a644
PK		 262 # Test Python lazy value handling
263 set test "memory error and lazy values"
aa2071bd
PK		 264 if {$can_read_0} {
265 untested $test
266 } else {
54d8a644 267 gdb_test "python inval = gdb.parse_and_eval('*(int*)0')"
9325cb04 268 gdb_test "python print (inval.is_lazy)" "True"
54d8a644
PK		 269 gdb_test "python inval2 = inval+1" "gdb.MemoryError: Cannot access memory at address 0x0.*" $test
270 gdb_test "python inval.fetch_lazy ()" "gdb.MemoryError: Cannot access memory at address 0x0.*" $test
aa2071bd
PK		 271 }
272 gdb_test "python argc_lazy = gdb.parse_and_eval('argc')"
54d8a644
PK		 273 gdb_test "python argc_notlazy = gdb.parse_and_eval('argc')"
274 gdb_test "python argc_notlazy.fetch_lazy()"
9325cb04
PK		 275 gdb_test "python print (argc_lazy.is_lazy)" "True"
276 gdb_test "python print (argc_notlazy.is_lazy)" "False"
aa2071bd 277 gdb_test "print argc" " = 1" "sanity check argc"
9325cb04 278 gdb_test "python print (argc_lazy.is_lazy)" "\r\nTrue"
aa2071bd 279 gdb_test_no_output "set argc=2"
9325cb04
PK		 280 gdb_test "python print (argc_notlazy)" "\r\n1"
281 gdb_test "python print (argc_lazy)" "\r\n2"
282 gdb_test "python print (argc_lazy.is_lazy)" "False"
aa2071bd 283
fbb8f299
PM		 284 # Test string fetches, both partial and whole.
285 gdb_test "print st" "\"divide et impera\""
286 gdb_py_test_silent_cmd "python st = gdb.history (0)" "get value from history" 1
9325cb04
PK		 287 gdb_test "python print (st.string ())" "divide et impera" "Test string with no length"
288 gdb_test "python print (st.string (length = -1))" "divide et impera" "Test string (length = -1) is all of the string"
289 gdb_test "python print (st.string (length = 6))" "divide"
290 gdb_test "python print (\"---\"+st.string (length = 0)+\"---\")" "------" "Test string (length = 0) is empty"
291 gdb_test "python print (len(st.string (length = 0)))" "0" "Test length is 0"
fbb8f299
PM		 292
293
294 # Fetch a string that has embedded nulls.
295 gdb_test "print nullst" "\"divide\\\\000et\\\\000impera\".*"
296 gdb_py_test_silent_cmd "python nullst = gdb.history (0)" "get value from history" 1
9325cb04 297 gdb_test "python print (nullst.string ())" "divide" "Test string to first null"
fbb8f299
PM		 298 # Python cannot print strings that contain the null (\0) character.
299 # For the purposes of this test, use repr()
300 gdb_py_test_silent_cmd "python nullst = nullst.string (length = 9)" "get string beyond null" 1
9325cb04 301 gdb_test "python print (repr(nullst))" "u?'divide\\\\x00et'"
0987cf35
DE		 302
303 # Test fetching a string longer than its declared (in C) size.
304 # PR 16286
305 gdb_py_test_silent_cmd "python xstr = gdb.parse_and_eval('xstr')" "get xstr" 1
d7fc3181 306 gdb_test "python print(xstr\['text'\].string (length = xstr\['length'\]))" "x{100}" \
0987cf35 307 "read string beyond declared size"
a08702d6
TJB		 308}
309
be759fcf
PM		 310proc test_lazy_strings {} {
311
312 global hex
313
314 gdb_test "print sptr" "\"pointer\""
315 gdb_py_test_silent_cmd "python sptr = gdb.history (0)" "Get value from history" 1
316
317 gdb_py_test_silent_cmd "python lstr = sptr.lazy_string()" "Aquire lazy string" 1
35720eaa
DE		 318 gdb_test "python print (lstr.type)" "const char \*." "Test lazy-string type name equality"
319 gdb_test "python print (sptr.type)" "const char \*." "Test string type name equality"
3881fb67
YQ		 320
321 # Prevent symbol on address 0x0 being printed.
322 gdb_test_no_output "set print symbol off"
fff5cc64 323 gdb_test "print sn" "0x0"
3881fb67 324
fff5cc64
PM		 325 gdb_py_test_silent_cmd "python snptr = gdb.history (0)" "Get value from history" 1
326 gdb_test "python snstr = snptr.lazy_string(length=5)" ".*Cannot create a lazy string with address.*" "Test lazy string"
327 gdb_py_test_silent_cmd "python snstr = snptr.lazy_string(length=0)" "Succesfully create a lazy string" 1
9325cb04
PK		 328 gdb_test "python print (snstr.length)" "0" "Test lazy string length"
329 gdb_test "python print (snstr.address)" "0" "Test lazy string address"
be759fcf
PM		 330}
331
332
5374244e
PM		 333proc test_inferior_function_call {} {
334 global gdb_prompt hex decimal
335
336 # Correct inferior call without arguments.
337 gdb_test "p/x fp1" " = $hex.*"
338 gdb_py_test_silent_cmd "python fp1 = gdb.history (0)" "get value from history" 1
339 gdb_test "python fp1 = fp1.dereference()" ""
340 gdb_test "python result = fp1()" ""
9325cb04 341 gdb_test "python print (result)" "void"
5374244e
PM		 342
343 # Correct inferior call with arguments.
344 gdb_test "p/x fp2" " = $hex.*"
345 gdb_py_test_silent_cmd "python fp2 = gdb.history (0)" "get value from history" 1
346 gdb_test "python fp2 = fp2.dereference()" ""
347 gdb_test "python result2 = fp2(10,20)" ""
9325cb04 348 gdb_test "python print (result2)" "30"
5374244e
PM		 349
350 # Incorrect to call an int value.
351 gdb_test "p i" " = $decimal.*"
352 gdb_py_test_silent_cmd "python i = gdb.history (0)" "get value from history" 1
353 gdb_test "python result3 = i()" ".*Value is not callable.*"
354
355 # Incorrect number of arguments.
356 gdb_test "p/x fp2" " = $hex.*"
357 gdb_py_test_silent_cmd "python fp3 = gdb.history (0)" "get value from history" 1
358 gdb_test "python fp3 = fp3.dereference()" ""
359 gdb_test "python result2 = fp3(10)" ".*Too few arguments in function call.*"
360}
361
89c73ade
TT		 362# A few objfile tests.
363proc test_objfiles {} {
9325cb04 364 gdb_test "python\nok=False\nfor file in gdb.objfiles():\n if 'py-value' in file.filename:\n ok=True\nprint (ok)\nend" "True" \
90556b8c 365 "py-value in file.filename"
89c73ade 366
9325cb04 367 gdb_test "python print (gdb.objfiles()\[0\].pretty_printers)" "\\\[\\\]"
89c73ade
TT		 368
369 gdb_test "python gdb.objfiles()\[0\].pretty_printers = 0" \
370 "pretty_printers attribute must be a list.*Error while executing Python code."
371}
a08702d6 372
2c74e833
TT		 373proc test_value_after_death {} {
374 # Construct a type while the inferior is still running.
375 gdb_py_test_silent_cmd "python ptrtype = gdb.lookup_type('PTR')" \
376 "create PTR type" 1
377
378 # Kill the inferior and remove the symbols.
379 gdb_test "kill" "" "kill the inferior" \
380 "Kill the program being debugged. .y or n. $" \
381 "y"
382 gdb_test "file" "" "Discard the symbols" \
383 "Discard symbol table from.*y or n. $" \
384 "y"
385
386 # Now create a value using that type. Relies on arg0, created by
387 # test_value_in_inferior.
388 gdb_py_test_silent_cmd "python castval = arg0.cast(ptrtype.pointer())" \
389 "cast arg0 to PTR" 1
390
391 # Make sure the type is deleted.
392 gdb_py_test_silent_cmd "python ptrtype = None" \
393 "delete PTR type" 1
394
395 # Now see if the value's type is still valid.
9325cb04 396 gdb_test "python print (castval.type)" "PTR ." \
2c74e833
TT		 397 "print value's type"
398}
399
2e4d963f
PM		 400# Regression test for invalid subscript operations. The bug was that
401# the type of the value was not being checked before allowing a
402# subscript operation to proceed.
403
db8e4570 404proc test_subscript_regression {exefile lang} {
2e4d963f 405 # Start with a fresh gdb.
d54b30bb 406 clean_restart ${exefile}
2e4d963f
PM		 407
408 if ![runto_main ] then {
409 perror "couldn't run to breakpoint"
410 return
411 }
412
413 if {$lang == "c++"} {
414 gdb_breakpoint [gdb_get_line_number "break to inspect pointer by reference"]
415 gdb_continue_to_breakpoint "break to inspect pointer by reference"
416
417 gdb_py_test_silent_cmd "print rptr_int" \
418 "Obtain address" 1
419 gdb_py_test_silent_cmd "python rptr = gdb.history(0)" \
420 "Obtains value from GDB" 1
9325cb04 421 gdb_test "python print (rptr\[0\])" "2" "Check pointer passed as reference"
f9ffd4bb
TT		 422
423 # Just the most basic test of dynamic_cast -- it is checked in
424 # the C++ tests.
9325cb04 425 gdb_test "python print (bool(gdb.parse_and_eval('base').dynamic_cast(gdb.lookup_type('Derived').pointer())))" \
f9ffd4bb 426 True
03f17ccf
TT		 427
428 # Likewise.
9325cb04 429 gdb_test "python print (gdb.parse_and_eval('base').dynamic_type)" \
03f17ccf 430 "Derived \[*\]"
7af389b8
SC		 431 gdb_test "python print (gdb.parse_and_eval('base_ref').dynamic_type)" \
432 "Derived \[&\]"
03f17ccf 433 # A static type case.
9325cb04 434 gdb_test "python print (gdb.parse_and_eval('5').dynamic_type)" \
03f17ccf 435 "int"
2e4d963f
PM		 436 }
437
438 gdb_breakpoint [gdb_get_line_number "break to inspect struct and union"]
439 gdb_continue_to_breakpoint "break to inspect struct and union"
440
441 gdb_py_test_silent_cmd "python intv = gdb.Value(1)" \
442 "Create a value for subscript test" 1
443 gdb_py_test_silent_cmd "python stringv = gdb.Value(\"foo\")" \
444 "Create a value for subscript test" 1
445
446 # Try to access an int with a subscript. This should fail.
35720eaa 447 gdb_test "python print (intv)" "1" "Baseline print of an int Python value"
9325cb04 448 gdb_test "python print (intv\[0\])" "gdb.error: Cannot subscript requested type.*" \
2e4d963f
PM		 449 "Attempt to access an integer with a subscript"
450
451 # Try to access a string with a subscript. This should pass.
35720eaa 452 gdb_test "python print (stringv)" "foo." "Baseline print of a string Python value"
9325cb04 453 gdb_test "python print (stringv\[0\])" "f." "Attempt to access a string with a subscript"
2e4d963f
PM		 454
455 # Try to access an int array via a pointer with a subscript. This should pass.
456 gdb_py_test_silent_cmd "print p" "Build pointer to array" 1
457 gdb_py_test_silent_cmd "python pointer = gdb.history(0)" "" 1
9325cb04
PK		 458 gdb_test "python print (pointer\[0\])" "1" "Access array via pointer with int subscript"
459 gdb_test "python print (pointer\[intv\])" "2" "Access array via pointer with value subscript"
2e4d963f
PM		 460
461 # Try to access a single dimension array with a subscript to the
462 # result. This should fail.
9325cb04 463 gdb_test "python print (pointer\[intv\]\[0\])" "gdb.error: Cannot subscript requested type.*" \
2e4d963f
PM		 464 "Attempt to access an integer with a subscript"
465
466 # Lastly, test subscript access to an array with multiple
467 # dimensions. This should pass.
468 gdb_py_test_silent_cmd "print {\"fu \",\"foo\",\"bar\"}" "Build array" 1
469 gdb_py_test_silent_cmd "python marray = gdb.history(0)" "" 1
9325cb04 470 gdb_test "python print (marray\[1\]\[2\])" "o." "Test multiple subscript"
2e4d963f
PM		 471}
472
57a1d736
TT		 473# A few tests of gdb.parse_and_eval.
474proc test_parse_and_eval {} {
9325cb04 475 gdb_test "python print (gdb.parse_and_eval ('23'))" "23" \
57a1d736 476 "parse_and_eval constant test"
9325cb04 477 gdb_test "python print (gdb.parse_and_eval ('5 + 7'))" "12" \
57a1d736 478 "parse_and_eval simple expression test"
9325cb04
PK		 479 gdb_test "python print (type(gdb.parse_and_eval ('5 + 7')))" \
480 ".(type|class) 'gdb.Value'."\
57a1d736
TT		 481 "parse_and_eval type test"
482}
483
88d4aea7
PM		 484# Test that values are hashable.
485proc test_value_hash {} {
486 gdb_py_test_multiple "Simple Python value dictionary" \
487 "python" "" \
488 "one = gdb.Value(1)" "" \
489 "two = gdb.Value(2)" "" \
490 "three = gdb.Value(3)" "" \
491 "vdict = {one:\"one str\",two:\"two str\",three:\"three str\"}" "" \
492 "end"
9325cb04
PK		 493 gdb_test "python print (vdict\[one\])" "one str" "Test dictionary hash"
494 gdb_test "python print (vdict\[two\])" "two str" "Test dictionary hash"
495 gdb_test "python print (vdict\[three\])" "three str" "Test dictionary hash"
496 gdb_test "python print (one.__hash__() == hash(one))" "True" "Test inbuilt hash"
88d4aea7
PM		 497}
498
ac52f9a2
DE		 499# Build C version of executable. C++ is built later.
500if { [build_inferior "${binfile}" "c"] < 0 } {
501 return -1
502}
88d4aea7 503
a08702d6 504# Start with a fresh gdb.
d54b30bb 505clean_restart ${binfile}
a08702d6 506
f6bbabf0
PM		 507# Skip all tests if Python scripting is not enabled.
508if { [skip_python_tests] } { continue }
a08702d6
TJB		 509
510test_value_creation
511test_value_numeric_ops
512test_value_boolean
513test_value_compare
89c73ade 514test_objfiles
57a1d736 515test_parse_and_eval
88d4aea7 516test_value_hash
adc13a14
PA		 517
518# The following tests require execution.
519
520if ![runto_main] then {
521 fail "Can't run to main"
522 return 0
523}
524
a08702d6 525test_value_in_inferior
5374244e 526test_inferior_function_call
be759fcf 527test_lazy_strings
2c74e833 528test_value_after_death
2e4d963f 529
db8e4570 530# Test either C or C++ values.
ac52f9a2 531
db8e4570 532test_subscript_regression "${binfile}" "c"
ac52f9a2
DE		 533
534if ![skip_cplus_tests] {
535 if { [build_inferior "${binfile}-cxx" "c++"] < 0 } {
536 return -1
537 }
35720eaa
DE		 538 with_test_prefix "c++" {
539 test_subscript_regression "${binfile}-cxx" "c++"
540 }
ac52f9a2 541}
GDB Binutils - Deliverables
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