python: Provide textual representation for Inferior and Objfile

[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.python / py-objfile.exp

# Copyright (C) 2011-2018 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
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# This file is part of the GDB testsuite.  It tests the program space
# support in Python.

load_lib gdb-python.exp

standard_testfile

if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
    return -1
}

# Skip all tests if Python scripting is not enabled.
if { [skip_python_tests] } { continue }

if ![runto_main] then {
    fail "can't run to main"
    return 0
}

set python_error_text "Error while executing Python code\\."

gdb_py_test_silent_cmd "python sym = gdb.lookup_symbol(\"some_var\")" \
    "Find a symbol in objfile" 1
gdb_py_test_silent_cmd "python objfile = sym\[0\].symtab.objfile" \
    "Get backing object file" 1

gdb_test "python print (objfile.filename)" "${testfile}" \
  "Get objfile file name"

gdb_test "python print (objfile.username)" "${testfile}" \
  "Get objfile user name"

gdb_test "python print (objfile)" \
    "<gdb.Objfile filename=[string_to_regexp ${binfile}]>"

gdb_test_no_output "python dir(objfile)"

gdb_test "python print (gdb.lookup_objfile (\"${testfile}\").filename)" \
    "${testfile}" "print lookup_objfile filename"
gdb_test "python print (gdb.lookup_objfile (\"junk\"))" \
    "Objfile not found\\.\r\n${python_error_text}"

set binfile_build_id [get_build_id $binfile]
if [string compare $binfile_build_id ""] {
    verbose -log "binfile_build_id = $binfile_build_id"
    gdb_test "python print (objfile.build_id)" "$binfile_build_id" \
    "Get objfile build id"
    gdb_test "python print (gdb.lookup_objfile (\"$binfile_build_id\", by_build_id=True).filename)" \
	"${testfile}" "print lookup_objfile filename by build-id"
} else {
    unsupported "build-id is not supported by the compiler"
}

# Other lookup_objfile_by_build_id tests we can do, even if compiler doesn't
# support them.
gdb_test "python print (gdb.lookup_objfile (\"foo\", by_build_id=True))" \
    "Not a valid build id\\.\r\n${python_error_text}" \
    "print invalid file lookup_objfile by build-id"
gdb_test "python print (gdb.lookup_objfile (\"1234abcdef\", by_build_id=True))" \
    "Objfile not found\\.\r\n${python_error_text}" \
    "print invalid file lookup_objfile by build-id 2"

gdb_test "python print (objfile.progspace)" "<gdb\.Progspace object at .*>" \
  "Get objfile program space"
gdb_test "python print (objfile.is_valid())" "True" \
  "Get objfile validity"
gdb_unload
gdb_test "python print (objfile.is_valid())" "False" \
  "Get objfile validity after unload"

gdb_py_test_silent_cmd "python objfile.random_attribute = 42" \
    "Set random attribute in objfile" 1
gdb_test "python print (objfile.random_attribute)" "42" \
    "Verify set of random attribute in objfile"

# Verify invalid objfile handling.

if { [gdb_unload] < 0 } {
    fail "unload all files"
    return -1
}

gdb_test "python print(objfile.filename)" "None" \
    "objfile.filename after objfile is unloaded"
gdb_test "python print(objfile.username)" "None" \
    "objfile.username after objfile is unloaded"

# Now build another copy of the testcase, this time without debug info.

if { [prepare_for_testing "failed to prepare" ${testfile}2 ${srcfile} {nodebug ldflags=-Wl,--strip-debug}] } {
    return -1
}

if ![runto_main] {
    fail "can't run to main"
    return 0
}

gdb_py_test_silent_cmd "python objfile = gdb.objfiles()\[0\]" \
    "Get no-debug objfile file" 1

gdb_test "python print (objfile.owner)" "None" \
    "Test owner of real objfile."

gdb_test "p main" "= {<text variable, no debug info>} $hex <main>" \
    "print main without debug info"

gdb_py_test_silent_cmd "python objfile.add_separate_debug_file(\"${binfile}\")" \
    "Add separate debug file file" 1

gdb_py_test_silent_cmd "python sep_objfile = gdb.objfiles()\[0\]" \
    "Get separate debug info objfile" 1

gdb_test "python print (sep_objfile.owner.filename)" "${testfile}2" \
    "Test owner of separate debug file"

gdb_test "python print (sep_objfile.owner.username)" "${testfile}2" \
    "Test user-name of owner of separate debug file"

gdb_test "p main" "= {int \\(\\)} $hex <main>" \
    "print main with debug info"

# Separate debug files are not findable.
if { [get_python_valueof "sep_objfile.build_id" "None"] != "None" } {
    gdb_test "python print (gdb.lookup_objfile (sep_objfile.build_id, by_build_id=True))" \
	"Objfile not found\\.\r\n${python_error_text}" \
	"print lookup_objfile of separate debug file"
}

# An objfile that was a symlink to a differently named file is still
# findable with its original name.
set symlink_binary [standard_output_file "symlink-binary"]
remote_exec host "rm -f ${symlink_binary}"
remote_exec host "ln -sf ${testfile} ${symlink_binary}"
if [remote_file host exists "${symlink_binary}"] {
    clean_restart "${symlink_binary}"
    gdb_test "python print (gdb.lookup_objfile (\"${symlink_binary}\").filename)" \
	"${testfile}" "gdb.lookup_objfile of symlinked binary"
}

# Test printing an Objfile object that is no longer valid.
gdb_py_test_silent_cmd "python objfile = gdb.objfiles()\[0\]" \
    "get first objfile" 1
gdb_file_cmd ${binfile}
gdb_test "python print(objfile)" "<gdb.Objfile \\\(invalid\\\)>"