c0c6f77785
Change gdb.Value.address from a method to an attribute. * python/python-value.c (value_object): Add `address' element. (valpy_dealloc): Decrement reference to self->address if set. (valpy_new): Initialize val_obj->address. (valpy_address): Rename to ... (valpy_get_address): ... this. Change signature from method to attribute. Update self->address if not set. (value_to_value_object): Initialize val_obj->address. (value_object_getset): Add `address' element. (value_object_methods): Remove `address' element. gdb/testsuite/ * gdb.python/python-value.exp: Add tests for the address attribute. gdb/doc/ * gdb.texinfo (Values From Inferior): Change gdb.Value.address from a method to an attribute.
267 lines
12 KiB
Text
267 lines
12 KiB
Text
# Copyright (C) 2008, 2009 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file is part of the GDB testsuite. It tests the mechanism
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# exposing values to Python.
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if $tracelevel then {
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strace $tracelevel
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}
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set testfile "python-value"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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untested "Couldn't compile ${srcfile}"
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return -1
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}
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# Usage: gdb_py_test_multiple NAME INPUT RESULT {INPUT RESULT}...
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# Run a test named NAME, consisting of multiple lines of input.
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# After each input line INPUT, search for result line RESULT.
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# Succeed if all results are seen; fail otherwise.
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proc gdb_py_test_multiple {name args} {
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global gdb_prompt
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foreach {input result} $args {
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if {[gdb_test_multiple $input "$name - $input" {
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-re "\[\r\n\]*($result)\[\r\n\]+($gdb_prompt | *>)$" {
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pass "$name - $input"
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}
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}]} {
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return 1
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}
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}
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return 0
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}
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# Run a command in GDB, and report a failure if a Python exception is thrown.
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# If report_pass is true, report a pass if no exception is thrown.
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proc gdb_py_test_silent_cmd {cmd name report_pass} {
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global gdb_prompt
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gdb_test_multiple $cmd $name {
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-re "Traceback.*$gdb_prompt $" { fail $name }
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-re "$gdb_prompt $" { if $report_pass { pass $name } }
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}
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}
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proc test_value_creation {} {
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global gdb_prompt
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gdb_py_test_silent_cmd "python i = gdb.Value (True)" "create boolean value" 1
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gdb_py_test_silent_cmd "python i = gdb.Value (5)" "create integer value" 1
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gdb_py_test_silent_cmd "python i = gdb.Value (5L)" "create long value" 1
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gdb_py_test_silent_cmd "python f = gdb.Value (1.25)" "create double value" 1
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gdb_py_test_silent_cmd "python a = gdb.Value ('string test')" "create 8-bit string value" 1
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gdb_test "python print a" "\"string test\"" "print 8-bit string"
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gdb_test "python print a.__class__" "<type 'gdb.Value'>" "verify type of 8-bit string"
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gdb_py_test_silent_cmd "python a = gdb.Value (u'unicode test')" "create unicode value" 1
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gdb_test "python print a" "\"unicode test\"" "print Unicode string"
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gdb_test "python print a.__class__" "<type 'gdb.Value'>" "verify type of unicode string"
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# Test address attribute is None in a non-addressable value
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gdb_test "python print 'result =', i.address" "= None" "Test address attribute in non-addressable value"
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}
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proc test_value_numeric_ops {} {
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global gdb_prompt
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gdb_py_test_silent_cmd "python i = gdb.Value (5)" "create first integer value" 0
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gdb_py_test_silent_cmd "python j = gdb.Value (2)" "create second integer value" 0
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gdb_py_test_silent_cmd "python f = gdb.Value (1.25)" "create first double value" 0
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gdb_py_test_silent_cmd "python g = gdb.Value (2.5)" "create second double value" 0
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gdb_test "python print 'result = ' + str(i+j)" " = 7" "add two integer values"
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gdb_test "python print (i+j).__class__" "<type 'gdb.Value'>" "verify type of integer add result"
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gdb_test "python print 'result = ' + str(f+g)" " = 3.75" "add two double values"
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gdb_test "python print 'result = ' + str(i-j)" " = 3" "subtract two integer values"
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gdb_test "python print 'result = ' + str(f-g)" " = -1.25" "subtract two double values"
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gdb_test "python print 'result = ' + str(i*j)" " = 10" "multiply two integer values"
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gdb_test "python print 'result = ' + str(f*g)" " = 3.125" "multiply two double values"
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gdb_test "python print 'result = ' + str(i/j)" " = 2" "divide two integer values"
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gdb_test "python print 'result = ' + str(f/g)" " = 0.5" "divide two double values"
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gdb_test "python print 'result = ' + str(i%j)" " = 1" "take remainder of two integer values"
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# Remainder of float is implemented in Python but not in GDB's value system.
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gdb_test "python print 'result = ' + str(i**j)" " = 25" "integer value raised to the power of another integer value"
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gdb_test "python print 'result = ' + str(g**j)" " = 6.25" "double value raised to the power of integer value"
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gdb_test "python print 'result = ' + str(-i)" " = -5" "negated integer value"
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gdb_test "python print 'result = ' + str(+i)" " = 5" "positive integer value"
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gdb_test "python print 'result = ' + str(-f)" " = -1.25" "negated double value"
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gdb_test "python print 'result = ' + str(+f)" " = 1.25" "positive double value"
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gdb_test "python print 'result = ' + str(abs(j-i))" " = 3" "absolute of integer value"
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gdb_test "python print 'result = ' + str(abs(f-g))" " = 1.25" "absolute of double value"
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# Test gdb.Value mixed with Python types.
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gdb_test "python print 'result = ' + str(i-1)" " = 4" "subtract integer value from python integer"
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gdb_test "python print (i-1).__class__" "<type 'gdb.Value'>" "verify type of mixed integer subtraction result"
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gdb_test "python print 'result = ' + str(f+1.5)" " = 2.75" "add double value with python float"
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gdb_test "python print 'result = ' + str(1-i)" " = -4" "subtract python integer from integer value"
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gdb_test "python print 'result = ' + str(1.5+f)" " = 2.75" "add python float with double value"
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# Conversion test.
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gdb_test "print evalue" " = TWO"
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gdb_test "python evalue = gdb.history (0)" ""
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gdb_test "python print int (evalue)" "2"
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# Test pointer arithmethic
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# First, obtain the pointers
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gdb_test "print (void *) 2" "" ""
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gdb_test "python a = gdb.history (0)" "" ""
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gdb_test "print (void *) 5" "" ""
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gdb_test "python b = gdb.history (0)" "" ""
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gdb_test "python print 'result = ' + str(a+5)" " = 0x7" "add pointer value with python integer"
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gdb_test "python print 'result = ' + str(b-2)" " = 0x3" "subtract python integer from pointer value"
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gdb_test "python print 'result = ' + str(b-a)" " = 3" "subtract two pointer values"
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# Test some invalid operations.
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gdb_test_multiple "python print 'result = ' + str(i+'foo')" "catch error in python type conversion" {
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-re "Argument to arithmetic operation not a number or boolean.*$gdb_prompt $" {pass "catch error in python type conversion"}
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-re "result = .*$gdb_prompt $" {fail "catch error in python type conversion"}
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-re "$gdb_prompt $" {fail "catch error in python type conversion"}
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}
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gdb_test_multiple "python print 'result = ' + str(i+gdb.Value('foo'))" "catch throw of GDB error" {
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-re "Traceback.*$gdb_prompt $" {pass "catch throw of GDB error"}
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-re "result = .*$gdb_prompt $" {fail "catch throw of GDB error"}
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-re "$gdb_prompt $" {fail "catch throw of GDB error"}
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}
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}
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proc test_value_boolean {} {
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# First, define a useful function to test booleans.
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gdb_py_test_multiple "define function to test booleans" \
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"python" "" \
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"def test_bool (val):" "" \
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" if val:" "" \
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" print 'yay'" "" \
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" else:" "" \
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" print 'nay'" "" \
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"end" ""
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gdb_test "py test_bool (gdb.Value (True))" "yay" "check evaluation of true boolean value in expression"
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gdb_test "py test_bool (gdb.Value (False))" "nay" "check evaluation of false boolean value in expression"
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gdb_test "py test_bool (gdb.Value (5))" "yay" "check evaluation of true integer value in expression"
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gdb_test "py test_bool (gdb.Value (0))" "nay" "check evaluation of false integer value in expression"
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gdb_test "py test_bool (gdb.Value (5.2))" "yay" "check evaluation of true integer value in expression"
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gdb_test "py test_bool (gdb.Value (0.0))" "nay" "check evaluation of false integer value in expression"
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}
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proc test_value_compare {} {
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gdb_test "py print gdb.Value (1) < gdb.Value (1)" "False" "less than, equal"
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gdb_test "py print gdb.Value (1) < gdb.Value (2)" "True" "less than, less"
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gdb_test "py print gdb.Value (2) < gdb.Value (1)" "False" "less than, greater"
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gdb_test "py print gdb.Value (2) < None" "False" "less than, None"
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gdb_test "py print gdb.Value (1) <= gdb.Value (1)" "True" "less or equal, equal"
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gdb_test "py print gdb.Value (1) <= gdb.Value (2)" "True" "less or equal, less"
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gdb_test "py print gdb.Value (2) <= gdb.Value (1)" "False" "less or equal, greater"
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gdb_test "py print gdb.Value (2) <= None" "False" "less or equal, None"
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gdb_test "py print gdb.Value (1) == gdb.Value (1)" "True" "equality of gdb.Values"
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gdb_test "py print gdb.Value (1) == gdb.Value (2)" "False" "inequality of gdb.Values"
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gdb_test "py print gdb.Value (1) == 1.0" "True" "equality of gdb.Value with Python value"
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gdb_test "py print gdb.Value (1) == 2" "False" "inequality of gdb.Value with Python value"
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gdb_test "py print gdb.Value (1) == None" "False" "inequality of gdb.Value with None"
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gdb_test "py print gdb.Value (1) != gdb.Value (1)" "False" "inequality, false"
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gdb_test "py print gdb.Value (1) != gdb.Value (2)" "True" "inequality, true"
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gdb_test "py print gdb.Value (1) != None" "True" "inequality, None"
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gdb_test "py print gdb.Value (1) > gdb.Value (1)" "False" "greater than, equal"
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gdb_test "py print gdb.Value (1) > gdb.Value (2)" "False" "greater than, less"
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gdb_test "py print gdb.Value (2) > gdb.Value (1)" "True" "greater than, greater"
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gdb_test "py print gdb.Value (2) > None" "True" "greater than, None"
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gdb_test "py print gdb.Value (1) >= gdb.Value (1)" "True" "greater or equal, equal"
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gdb_test "py print gdb.Value (1) >= gdb.Value (2)" "False" "greater or equal, less"
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gdb_test "py print gdb.Value (2) >= gdb.Value (1)" "True" "greater or equal, greater"
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gdb_test "py print gdb.Value (2) >= None" "True" "greater or equal, None"
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}
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proc test_value_in_inferior {} {
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global gdb_prompt
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global testfile
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gdb_breakpoint [gdb_get_line_number "break to inspect struct and union"]
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gdb_continue_to_breakpoint "break to inspect struct and union"
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# Just get inferior variable s in the value history, available to python.
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gdb_test "print s" " = {a = 3, b = 5}" ""
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gdb_py_test_silent_cmd "python s = gdb.history (0)" "get value from history" 1
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gdb_test "python print 'result = ' + str(s\['a'\])" " = 3" "access element inside struct using 8-bit string name"
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gdb_test "python print 'result = ' + str(s\[u'a'\])" " = 3" "access element inside struct using unicode name"
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# Test dereferencing the argv pointer
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# Just get inferior variable argv the value history, available to python.
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gdb_test "print argv" " = \\(char \\*\\*\\) 0x.*" ""
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gdb_py_test_silent_cmd "python argv = gdb.history (0)" "" 0
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gdb_py_test_silent_cmd "python arg0 = argv.dereference ()" "dereference value" 1
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# Check that the dereferenced value is sane
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gdb_test "python print arg0" "0x.*$testfile\"" "verify dereferenced value"
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# Smoke-test is_optimized_out attribute
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gdb_test "python print 'result =', arg0.is_optimized_out" "= False" "Test is_optimized_out attribute"
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# Test address attribute
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gdb_test "python print 'result =', arg0.address" "= 0x\[\[:xdigit:\]\]+" "Test address attribute"
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}
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# Start with a fresh gdb.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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gdb_test_multiple "python print 'hello, world!'" "verify python support" {
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-re "not supported.*$gdb_prompt $" {
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unsupported "python support is disabled"
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return -1
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}
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-re "$gdb_prompt $" {}
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}
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test_value_creation
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test_value_numeric_ops
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test_value_boolean
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test_value_compare
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# The following tests require execution.
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if ![runto_main] then {
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fail "Can't run to main"
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return 0
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}
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test_value_in_inferior
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