309 lines
14 KiB
Plaintext
309 lines
14 KiB
Plaintext
# Copyright (C) 2009-2020 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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# of exposing types to Python.
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load_lib gdb-python.exp
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standard_testfile
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if [get_compiler_info c++] {
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return -1
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}
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# Build inferior to language specification.
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proc build_inferior {exefile lang} {
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global srcdir subdir srcfile testfile hex
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${exefile}" executable "debug $lang"] != "" } {
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untested "failed to compile in $lang mode"
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return -1
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}
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return 0
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}
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# Restart GDB.
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proc restart_gdb {exefile} {
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global srcdir subdir srcfile testfile hex
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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 ${exefile}
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if ![runto_main ] then {
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perror "couldn't run to breakpoint"
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return
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}
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}
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# Set breakpoint and run to that breakpoint.
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proc runto_bp {bp} {
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gdb_breakpoint [gdb_get_line_number $bp]
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gdb_continue_to_breakpoint $bp
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}
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proc test_fields {lang} {
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with_test_prefix "test_fields" {
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global gdb_prompt
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# .fields() of a typedef should still return the underlying field list
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gdb_test "python print (len(gdb.parse_and_eval('ts').type.fields()))" "2" \
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"$lang typedef field list"
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if {$lang == "c++"} {
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# Test usage with a class
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gdb_py_test_silent_cmd "print (c)" "print value (c)" 1
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gdb_py_test_silent_cmd "python c = gdb.history (0)" "get value (c) from history" 1
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gdb_py_test_silent_cmd "python fields = c.type.fields()" "get fields from c.type" 1
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gdb_test "python print (len(fields))" "2" "check number of fields (c)"
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gdb_test "python print (fields\[0\].name)" "c" "check class field c name"
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gdb_test "python print (fields\[1\].name)" "d" "check class field d name"
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gdb_test "python print (c.type == gdb.parse_and_eval('d').type)" "False"
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gdb_test "python print (c.type == gdb.parse_and_eval('d').type.fields()\[0\].type)" \
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"True"
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# Test fields of a method (its parameters)
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gdb_test "python print (len (gdb.parse_and_eval ('C::a_method').type.fields ()))" "3"
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gdb_test "python print (gdb.parse_and_eval ('C::a_method').type.fields ()\[0\].type)" "C \\* const"
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gdb_test "python print (gdb.parse_and_eval ('C::a_method').type.fields ()\[1\].type)" "int"
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gdb_test "python print (gdb.parse_and_eval ('C::a_method').type.fields ()\[2\].type)" "char"
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gdb_test "python print (len (gdb.parse_and_eval ('C::a_const_method').type.fields ()))" "3"
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gdb_test "python print (gdb.parse_and_eval ('C::a_const_method').type.fields ()\[0\].type)" "const C \\* const"
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gdb_test "python print (gdb.parse_and_eval ('C::a_const_method').type.fields ()\[1\].type)" "int"
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gdb_test "python print (gdb.parse_and_eval ('C::a_const_method').type.fields ()\[2\].type)" "char"
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gdb_test "python print (len (gdb.parse_and_eval ('C::a_static_method').type.fields ()))" "2"
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gdb_test "python print (gdb.parse_and_eval ('C::a_static_method').type.fields ()\[0\].type)" "int"
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gdb_test "python print (gdb.parse_and_eval ('C::a_static_method').type.fields ()\[1\].type)" "char"
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}
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# Test normal fields usage in structs.
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gdb_py_test_silent_cmd "print (st)" "print value (st)" 1
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gdb_py_test_silent_cmd "python st = gdb.history (0)" "get value (st) from history" 1
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gdb_py_test_silent_cmd "python fields = st.type.fields()" "get fields from st.type" 1
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gdb_test "python print (st.type.objfile.filename == gdb.current_progspace ().filename)" "True" \
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"check type.objfile"
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gdb_test "python print (len(fields))" "2" "check number of fields (st)"
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gdb_test "python print (fields\[0\].name)" "a" "check structure field a name"
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gdb_test "python print (fields\[1\].name)" "b" "check structure field b name"
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# Test that unamed fields have 'None' for name.
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gdb_py_test_silent_cmd "python ss = gdb.parse_and_eval('ss')" "init ss" 1
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gdb_py_test_silent_cmd "python ss_fields = ss.type.fields()" \
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"get fields from ss.type" 1
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gdb_test "python print(len(ss_fields))" "2" "check length of ss_fields"
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gdb_test "python print(ss_fields\[0\].name is None)" "True" \
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"Check ss_fields\[0\].name"
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gdb_test "python print(ss_fields\[1\].name is None)" "True" \
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"Check ss_fields\[1\].name"
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# Regression test for
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# http://sourceware.org/bugzilla/show_bug.cgi?id=12070.
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gdb_test "python print ('type' in dir(fields\[0\]))" "True" \
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"Check that dir includes name"
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# Test Python mapping behavior of gdb.Type for structs/classes
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gdb_test "python print (len(st.type))" "2" "check number of fields (st.type)"
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gdb_test "python print (st.type\['a'\].name)" "a" "check fields lookup by name"
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gdb_test "python print (\[v.bitpos for v in st.type.itervalues()\])" {\[0L?, 32L?\]} "Check fields iteration over values"
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gdb_test "python print (\[(n, v.bitpos) for (n, v) in st.type.items()\])" {\[\('a', 0L?\), \('b', 32L?\)\]} "Check fields items list"
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gdb_test "python print ('a' in st.type)" "True" "check field name exists test"
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gdb_test "python print ('nosuch' in st.type)" "False" "check field name nonexists test"
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gdb_test "python print (not not st.type)" "True" "check conversion to bool"
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# Test rejection of mapping operations on scalar types
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gdb_test "python print (len (st.type\['a'\].type))" "TypeError: Type is not a structure, union, enum, or function type.*"
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gdb_test "python print (st.type\['a'\].type.has_key ('x'))" "TypeError: Type is not a structure, union, enum, or function type.*"
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gdb_test "python print (st.type\['a'\].type\['x'\])" "TypeError: Type is not a structure, union, enum, or function type.*"
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gdb_test "python print (st.type\['a'\].type.keys ())" "TypeError: Type is not a structure, union, enum, or function type.*"
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# Test conversion to bool on scalar types
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gdb_test "python print (not not st.type\['a'\].type)" "True"
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# Test regression PR python/10805
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gdb_py_test_silent_cmd "print (ar)" "print value (ar)" 1
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gdb_py_test_silent_cmd "python ar = gdb.history (0)" "get value (ar) from history" 1
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gdb_test "python fields = ar.type.fields()"
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gdb_test "python print (len(fields))" "1" "check the number of fields"
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gdb_test "python print (fields\[0\].type)" "<range type>" "check array field type"
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# Test gdb.Type.array.
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gdb_test "python print (ar\[0\].cast(ar\[0\].type.array(1)))" \
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".1, 2." "cast to array with one argument"
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gdb_test "python print (ar\[0\].cast(ar\[0\].type.array(0, 1)))" \
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".1, 2." "cast to array with two arguments"
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gdb_test "python print (ar\[0\].type == ar\[0\].type)" "True"
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# Test gdb.Type.vector.
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# Note: vectors cast differently than arrays. Here ar[0] is replicated
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# for the size of the vector.
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gdb_py_test_silent_cmd "print (vec_data_1)" "print value (vec_data_1)" 1
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gdb_py_test_silent_cmd "python vec_data_1 = gdb.history (0)" "get value (vec_data_1) from history" 1
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gdb_py_test_silent_cmd "print (vec_data_2)" "print value (vec_data_2)" 1
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gdb_py_test_silent_cmd "python vec_data_2 = gdb.history (0)" "get value (vec_data_2) from history" 1
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gdb_py_test_silent_cmd "python vec1 = vec_data_1.cast(ar\[0\].type.vector(1))" "set vec1" 1
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gdb_test "python print (vec1)" ".1, 1." "cast to vector with one argument"
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gdb_py_test_silent_cmd "python vec2 = vec_data_1.cast(ar\[0\].type.vector(0, 1))" "set vec2" 1
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gdb_test "python print (vec2)" ".1, 1." "cast to vector with two arguments"
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gdb_test "python print (vec1 == vec2)" "True"
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gdb_py_test_silent_cmd "python vec3 = vec_data_2.cast(ar\[0\].type.vector(1))" "set vec3" 1
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gdb_test "python print (vec1 == vec3)" "False"
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# Test fields of a function (its parameters)
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gdb_test "python print (len (gdb.parse_and_eval ('a_function').type.fields ()))" "2"
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gdb_test "python print (gdb.parse_and_eval ('a_function').type.fields ()\[0\].type)" "int"
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gdb_test "python print (gdb.parse_and_eval ('a_function').type.fields ()\[1\].type)" "char"
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}
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}
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proc test_enums {} {
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with_test_prefix "test_enum" {
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gdb_py_test_silent_cmd "print (e)" "print value (e)" 1
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gdb_py_test_silent_cmd "python (e) = gdb.history (0)" "get value (e) from history" 1
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gdb_py_test_silent_cmd "python fields = e.type.fields()" "extract type fields from e" 1
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gdb_test "python print (len(fields))" "3" "check the number of enum fields"
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gdb_test "python print (fields\[0\].name)" "v1" "check enum field\[0\] name"
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gdb_test "python print (fields\[1\].name)" "v2" "check enum field\[1\]name"
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# Ditto but by mapping operations
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gdb_test "python print (len(e.type))" "3" "check the number of type fields"
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gdb_test "python print (e.type\['v1'\].name)" "v1" "check enum field lookup by name (v1)"
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gdb_test "python print (e.type\['v3'\].name)" "v3" "check enum field lookup by name (v3)"
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gdb_test "python print (\[v.enumval for v in e.type.itervalues()\])" {\[0L?, 1L?, 2L?\]} "Check num fields iteration over values"
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gdb_test "python print (\[(n, v.enumval) for (n, v) in e.type.items()\])" {\[\('v1', 0L?\), \('v2', 1L?\), \('v3', 2L?\)\]} "Check enum fields items list"
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}
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}
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proc test_base_class {} {
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with_test_prefix "test_base_class" {
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gdb_py_test_silent_cmd "print (d)" "print value (d)" 1
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gdb_py_test_silent_cmd "python d = gdb.history (0)" "get value (d) from history" 1
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gdb_py_test_silent_cmd "python fields = d.type.fields()" "extract type fields from d" 1
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gdb_test "python print (len(fields))" "3" "check the number of fields"
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gdb_test "python print (fields\[0\].is_base_class)" "True" "check base class (fields\[0\])"
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gdb_test "python print (fields\[1\].is_base_class)" "False" "check base class (fields\[1\])"
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}
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}
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proc test_range {} {
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with_test_prefix "test_range" {
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with_test_prefix "on ranged value" {
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# Test a valid range request.
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gdb_py_test_silent_cmd "print (ar)" "print value (ar)" 1
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gdb_py_test_silent_cmd "python ar = gdb.history (0)" "get value (ar) from history" 1
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gdb_test "python print (len(ar.type.range()))" "2" "check correct tuple length"
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gdb_test "python print (ar.type.range()\[0\])" "0" "check range low bound"
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gdb_test "python print (ar.type.range()\[1\])" "1" "check range high bound"
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}
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with_test_prefix "on ranged type" {
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# Test a range request on a ranged type.
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gdb_py_test_silent_cmd "print (ar)" "print value (ar)" 1
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gdb_py_test_silent_cmd "python ar = gdb.history (0)" "get value (ar) from history" 1
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gdb_py_test_silent_cmd "python fields = ar.type.fields()" "get fields" 1
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gdb_test "python print (fields\[0\].type.range()\[0\])" "0" "check range low bound"
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gdb_test "python print (fields\[0\].type.range()\[1\])" "1" "check range high bound"
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}
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with_test_prefix "on unranged value" {
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# Test where a range does not exist.
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gdb_py_test_silent_cmd "print (st)" "print value (st)" 1
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gdb_py_test_silent_cmd "python st = gdb.history (0)" "get value (st) from history" 1
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gdb_test "python print (st.type.range())" "RuntimeError: This type does not have a range.*" "check range for non ranged type."
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}
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}
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}
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# Some tests of template arguments.
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proc test_template {} {
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gdb_py_test_silent_cmd \
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"python ttype = gdb.parse_and_eval('temvar').type" \
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"get type of temvar" \
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1
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gdb_test "python print (ttype.template_argument(0))" "D"
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gdb_test "python print (isinstance(ttype.template_argument(0), gdb.Type))" \
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"True"
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# The next two tests require a GCC that emits DW_TAG_template_*.
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# GCC 4.4 does not emit it, 4.5 and 6 do emit it.
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set have_older_gcc 0
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if {[test_compiler_info {gcc-[0-3]-*}]
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|| [test_compiler_info {gcc-4-[0-4]-*}]} {
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set have_older_gcc 1
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}
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if $have_older_gcc { setup_xfail *-*-* }
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gdb_test "python print (ttype.template_argument(1))" "23"
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if $have_older_gcc { setup_xfail *-*-* }
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gdb_test "python print (isinstance(ttype.template_argument(1), gdb.Value))" \
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"True"
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if {[test_compiler_info {gcc-[0-3]-*}]
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|| [test_compiler_info {gcc-4-[0-5]-*}]} {
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setup_xfail "gcc/46955" *-*-*
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}
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gdb_test "python print (ttype.template_argument(2))" "&C::c"
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}
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# Perform C Tests.
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if { [build_inferior "${binfile}" "c"] == 0 } {
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restart_gdb "${binfile}"
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# Skip all tests if Python scripting is not enabled.
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if { [skip_python_tests] } { continue }
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gdb_test "python print (gdb.lookup_type ('char').objfile)" "None"
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gdb_test "python print(gdb.lookup_type('char').array(1, 0))" \
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"char \\\[0\\\]"
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gdb_test "python print(gdb.lookup_type('char').array(1, -1))" \
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"Array length must not be negative.*"
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gdb_test "python print(gdb.lookup_type('int').optimized_out())" \
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"<optimized out>"
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set sint [get_sizeof int 0]
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gdb_test "python print(gdb.parse_and_eval('aligncheck').type.alignof)" \
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$sint
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with_test_prefix "lang_c" {
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runto_bp "break to inspect struct and array."
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test_fields "c"
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test_enums
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}
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}
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# Perform C++ Tests.
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if { [build_inferior "${binfile}-cxx" "c++"] == 0 } {
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restart_gdb "${binfile}-cxx"
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with_test_prefix "lang_cpp" {
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runto_bp "break to inspect struct and array."
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test_fields "c++"
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test_base_class
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test_range
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test_template
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test_enums
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}
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}
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