-# Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+# Copyright (C) 2008-2012 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# This file is part of the GDB testsuite. It tests the mechanism
# exposing values to Python.
-if $tracelevel then {
- strace $tracelevel
-}
-
-set testfile "py-value"
-set srcfile ${testfile}.c
-set binfile ${objdir}/${subdir}/${testfile}
-if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
- untested "Couldn't compile ${srcfile}"
- return -1
-}
+load_lib gdb-python.exp
-# Usage: gdb_py_test_multiple NAME INPUT RESULT {INPUT RESULT}...
-# Run a test named NAME, consisting of multiple lines of input.
-# After each input line INPUT, search for result line RESULT.
-# Succeed if all results are seen; fail otherwise.
-proc gdb_py_test_multiple {name args} {
- global gdb_prompt
- foreach {input result} $args {
- if {[gdb_test_multiple $input "$name - $input" {
- -re "\[\r\n\]*($result)\[\r\n\]+($gdb_prompt | *>)$" {
- pass "$name - $input"
- }
- }]} {
- return 1
- }
- }
- return 0
-}
+standard_testfile
-# Run a command in GDB, and report a failure if a Python exception is thrown.
-# If report_pass is true, report a pass if no exception is thrown.
-proc gdb_py_test_silent_cmd {cmd name report_pass} {
- global gdb_prompt
+# Build inferior to language specification.
+proc build_inferior {exefile lang} {
+ global srcdir subdir srcfile testfile hex
- gdb_test_multiple $cmd $name {
- -re "Traceback.*$gdb_prompt $" { fail $name }
- -re "$gdb_prompt $" { if $report_pass { pass $name } }
+ if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${exefile}" executable "debug $lang"] != "" } {
+ untested "Couldn't compile ${srcfile} in $lang mode"
+ return -1
}
}
# Conversion test.
gdb_test "print evalue" " = TWO"
- gdb_test "python evalue = gdb.history (0)" ""
+ gdb_test_no_output "python evalue = gdb.history (0)"
gdb_test "python print int (evalue)" "2"
# Test pointer arithmethic
# First, obtain the pointers
- gdb_test "print (void *) 2" "" ""
- gdb_test "python a = gdb.history (0)" "" ""
- gdb_test "print (void *) 5" "" ""
- gdb_test "python b = gdb.history (0)" "" ""
+ gdb_test "print (void *) 2" ".*" ""
+ gdb_test_no_output "python a = gdb.history (0)" ""
+ gdb_test "print (void *) 5" ".*" ""
+ gdb_test_no_output "python b = gdb.history (0)" ""
gdb_test "python print 'result = ' + str(a+5)" " = 0x7" "add pointer value with python integer"
gdb_test "python print 'result = ' + str(b-2)" " = 0x3" "subtract python integer from pointer value"
gdb_py_test_silent_cmd "python arg0 = argv.dereference ()" "dereference value" 1
# Check that the dereferenced value is sane
- gdb_test "python print arg0" "0x.*$testfile\"" "verify dereferenced value"
+ if { ! [target_info exists noargs] } {
+ gdb_test "python print arg0" "0x.*$testfile\"" "verify dereferenced value"
+ }
# Smoke-test is_optimized_out attribute
gdb_test "python print 'result =', arg0.is_optimized_out" "= False" "Test is_optimized_out attribute"
# Test address attribute
gdb_test "python print 'result =', arg0.address" "= 0x\[\[:xdigit:\]\]+" "Test address attribute"
+ # Test displaying a variable that is temporarily at a bad address.
+ # But if we can examine what's at memory address 0, then we'll also be
+ # able to display it without error. Don't run the test in that case.
+ set can_read_0 0
+ gdb_test_multiple "x 0" "memory at address 0" {
+ -re "0x0:\[ \t\]*Cannot access memory at address 0x0\r\n$gdb_prompt $" { }
+ -re "0x0:\[ \t\]*Error accessing memory address 0x0\r\n$gdb_prompt $" { }
+ -re "\r\n$gdb_prompt $" {
+ set can_read_0 1
+ }
+ }
+
+ # Test memory error.
+ set test "parse_and_eval with memory error"
+ if {$can_read_0} {
+ untested $test
+ } else {
+ gdb_test "python print gdb.parse_and_eval('*(int*)0')" "gdb.MemoryError: Cannot access memory at address 0x0.*" $test
+ }
+
+ # Test Python lazy value handling
+ set test "memory error and lazy values"
+ if {$can_read_0} {
+ untested $test
+ } else {
+ gdb_test "python inval = gdb.parse_and_eval('*(int*)0')"
+ gdb_test "python print inval.is_lazy" "True"
+ gdb_test "python inval2 = inval+1" "gdb.MemoryError: Cannot access memory at address 0x0.*" $test
+ gdb_test "python inval.fetch_lazy ()" "gdb.MemoryError: Cannot access memory at address 0x0.*" $test
+ }
+ gdb_test "python argc_lazy = gdb.parse_and_eval('argc')"
+ gdb_test "python argc_notlazy = gdb.parse_and_eval('argc')"
+ gdb_test "python argc_notlazy.fetch_lazy()"
+ gdb_test "python print argc_lazy.is_lazy" "True"
+ gdb_test "python print argc_notlazy.is_lazy" "False"
+ gdb_test "print argc" " = 1" "sanity check argc"
+ gdb_test "python print argc_lazy.is_lazy" "\r\nTrue"
+ gdb_test_no_output "set argc=2"
+ gdb_test "python print argc_notlazy" "\r\n1"
+ gdb_test "python print argc_lazy" "\r\n2"
+ gdb_test "python print argc_lazy.is_lazy" "False"
+
# Test string fetches, both partial and whole.
gdb_test "print st" "\"divide et impera\""
gdb_py_test_silent_cmd "python st = gdb.history (0)" "get value from history" 1
gdb_test "python print repr(nullst)" "u'divide\\\\x00et'"
}
+proc test_lazy_strings {} {
+
+ global hex
+
+ gdb_test "print sptr" "\"pointer\""
+ gdb_py_test_silent_cmd "python sptr = gdb.history (0)" "Get value from history" 1
+
+ gdb_py_test_silent_cmd "python lstr = sptr.lazy_string()" "Aquire lazy string" 1
+ gdb_test "python print lstr.type" "const char \*." "Test type name equality"
+ gdb_test "python print sptr.type" "const char \*." "Test type name equality"
+ gdb_test "print sn" "0x0"
+ gdb_py_test_silent_cmd "python snptr = gdb.history (0)" "Get value from history" 1
+ gdb_test "python snstr = snptr.lazy_string(length=5)" ".*Cannot create a lazy string with address.*" "Test lazy string"
+ gdb_py_test_silent_cmd "python snstr = snptr.lazy_string(length=0)" "Succesfully create a lazy string" 1
+ gdb_test "python print snstr.length" "0" "Test lazy string length"
+ gdb_test "python print snstr.address" "0" "Test lazy string address"
+}
+
+
+proc test_inferior_function_call {} {
+ global gdb_prompt hex decimal
+
+ # Correct inferior call without arguments.
+ gdb_test "p/x fp1" " = $hex.*"
+ gdb_py_test_silent_cmd "python fp1 = gdb.history (0)" "get value from history" 1
+ gdb_test "python fp1 = fp1.dereference()" ""
+ gdb_test "python result = fp1()" ""
+ gdb_test "python print result" "void"
+
+ # Correct inferior call with arguments.
+ gdb_test "p/x fp2" " = $hex.*"
+ gdb_py_test_silent_cmd "python fp2 = gdb.history (0)" "get value from history" 1
+ gdb_test "python fp2 = fp2.dereference()" ""
+ gdb_test "python result2 = fp2(10,20)" ""
+ gdb_test "python print result2" "30"
+
+ # Incorrect to call an int value.
+ gdb_test "p i" " = $decimal.*"
+ gdb_py_test_silent_cmd "python i = gdb.history (0)" "get value from history" 1
+ gdb_test "python result3 = i()" ".*Value is not callable.*"
+
+ # Incorrect number of arguments.
+ gdb_test "p/x fp2" " = $hex.*"
+ gdb_py_test_silent_cmd "python fp3 = gdb.history (0)" "get value from history" 1
+ gdb_test "python fp3 = fp3.dereference()" ""
+ gdb_test "python result2 = fp3(10)" ".*Too few arguments in function call.*"
+}
+
# A few objfile tests.
proc test_objfiles {} {
- gdb_test "python\nok=False\nfor file in gdb.objfiles():\n if 'py-value' in file.filename:\n ok=True\nprint ok\nend" "True"
+ gdb_test "python\nok=False\nfor file in gdb.objfiles():\n if 'py-value' in file.filename:\n ok=True\nprint ok\nend" "True" \
+ "py-value in file.filename"
gdb_test "python print gdb.objfiles()\[0\].pretty_printers" "\\\[\\\]"
# the type of the value was not being checked before allowing a
# subscript operation to proceed.
-proc test_subscript_regression {lang} {
+proc test_subscript_regression {exefile lang} {
- global srcdir subdir srcfile binfile testfile hex
- if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable "debug $lang"] != "" } {
- untested "Couldn't compile ${srcfile} in $lang mode"
- return -1
- }
+ global srcdir subdir
# Start with a fresh gdb.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
- gdb_load ${binfile}
+ gdb_load ${exefile}
if ![runto_main ] then {
perror "couldn't run to breakpoint"
gdb_py_test_silent_cmd "python rptr = gdb.history(0)" \
"Obtains value from GDB" 1
gdb_test "python print rptr\[0\]" "2" "Check pointer passed as reference"
+
+ # Just the most basic test of dynamic_cast -- it is checked in
+ # the C++ tests.
+ gdb_test "python print bool(gdb.parse_and_eval('base').dynamic_cast(gdb.lookup_type('Derived').pointer()))" \
+ True
+
+ # Likewise.
+ gdb_test "python print gdb.parse_and_eval('base').dynamic_type" \
+ "Derived \[*\]"
+ # A static type case.
+ gdb_test "python print gdb.parse_and_eval('5').dynamic_type" \
+ "int"
}
gdb_breakpoint [gdb_get_line_number "break to inspect struct and union"]
# Try to access an int with a subscript. This should fail.
gdb_test "python print intv" "1" "Baseline print of a Python value"
- gdb_test "python print intv\[0\]" "RuntimeError: Cannot subscript requested type.*" \
+ gdb_test "python print intv\[0\]" "gdb.error: Cannot subscript requested type.*" \
"Attempt to access an integer with a subscript"
# Try to access a string with a subscript. This should pass.
# Try to access a single dimension array with a subscript to the
# result. This should fail.
- gdb_test "python print pointer\[intv\]\[0\]" "RuntimeError: Cannot subscript requested type.*" \
+ gdb_test "python print pointer\[intv\]\[0\]" "gdb.error: Cannot subscript requested type.*" \
"Attempt to access an integer with a subscript"
# Lastly, test subscript access to an array with multiple
"parse_and_eval type test"
}
+# Test that values are hashable.
+proc test_value_hash {} {
+ gdb_py_test_multiple "Simple Python value dictionary" \
+ "python" "" \
+ "one = gdb.Value(1)" "" \
+ "two = gdb.Value(2)" "" \
+ "three = gdb.Value(3)" "" \
+ "vdict = {one:\"one str\",two:\"two str\",three:\"three str\"}" "" \
+ "end"
+ gdb_test "python print vdict\[one\]" "one str" "Test dictionary hash"
+ gdb_test "python print vdict\[two\]" "two str" "Test dictionary hash"
+ gdb_test "python print vdict\[three\]" "three str" "Test dictionary hash"
+ gdb_test "python print one.__hash__() == hash(one)" "True" "Test inbuilt hash"
+}
+
+# Build C and C++ versions of executable
+build_inferior "${binfile}" "c"
+build_inferior "${binfile}-cxx" "c++"
+
# Start with a fresh gdb.
gdb_exit
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
-gdb_test_multiple "python print 'hello, world!'" "verify python support" {
- -re "not supported.*$gdb_prompt $" {
- unsupported "python support is disabled"
- return -1
- }
- -re "$gdb_prompt $" {}
-}
+# Skip all tests if Python scripting is not enabled.
+if { [skip_python_tests] } { continue }
test_value_creation
test_value_numeric_ops
test_value_compare
test_objfiles
test_parse_and_eval
+test_value_hash
# The following tests require execution.
}
test_value_in_inferior
+test_inferior_function_call
+test_lazy_strings
test_value_after_death
-# The following test recompiles the binary to test either C or C++
-# values.
-test_subscript_regression "c++"
-test_subscript_regression "c"
+# Test either C or C++ values.
+test_subscript_regression "${binfile}" "c"
+test_subscript_regression "${binfile}-cxx" "c++"
projects / deliverable / binutils-gdb.git / blobdiff