2010-08-11 Tom Tromey <tromey@redhat.com>

[thirdparty/binutils-gdb.git] / gdb / testsuite / gdb.python / python.exp

# Copyright (C) 2008, 2009, 2010 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 mechanism
# exposing values to Python.

if $tracelevel then {
    strace $tracelevel
}

set testfile "python"
set srcfile  ${testfile}.c
set libfile  "python-sl"
set libsrc   ${libfile}.c
set library  ${objdir}/${subdir}/${libfile}.sl
set binfile  ${objdir}/${subdir}/${testfile}

if { [gdb_compile_shlib ${srcdir}/${subdir}/${libsrc} ${library} "debug"] != "" } {
    untested "Could not compile shared library."
    return -1
}

set exec_opts [list debug shlib=${library}]

if { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable $exec_opts] != "" } {
    untested "Could not compile $binfile."
    return -1
}

# Start with a fresh gdb.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir

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

# 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

  gdb_test_multiple $cmd $name {
      -re "Traceback.*$gdb_prompt $"  { fail $name }
      -re "$gdb_prompt $"	      { if $report_pass { pass $name } }
  }
}

gdb_test_multiple "python print 23" "verify python support" {
    -re "not supported.*$gdb_prompt $"	{
      unsupported "python support is disabled"

      # If Python is not supported, verify that sourcing a python script
      # causes an error.
      gdb_test "source $srcdir/$subdir/source2.py" "Error in sourced command file:.*"
      return -1
    }
    -re "$gdb_prompt $"	{}
}

# 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
}

gdb_py_test_multiple "multi-line python command" \
  "python" "" \
  "print 23" "" \
  "end" "23"

gdb_py_test_multiple "show python command" \
  "define zzq" "Type commands for definition of .* just \"end\"\\.*" \
  "python" "" \
  "print 23" "" \
  "end" "" \
  "end" "" \
  "show user zzq" "User command \"zzq\":.*  python.*print 23.*  end"

gdb_py_test_multiple "indented multi-line python command" \
  "python" "" \
  "def foo ():" "" \
  "  print 'hello, world!'" "" \
  "foo ()" "" \
  "end" "hello, world!"

gdb_test "source $srcdir/$subdir/source2.py" "yes"

gdb_test "python print gdb.current_objfile()" "None"
gdb_test "python print gdb.objfiles()" "\\\[\\\]"

# Test http://bugs.python.org/issue4434 workaround in configure.ac
gdb_test "python import itertools; print 'IMPOR'+'TED'" "IMPORTED" "pythonX.Y/lib-dynload/*.so"

gdb_test_no_output \
    "python x = gdb.execute('printf \"%d\", 23', to_string = True)"
gdb_test "python print x" "23"

# Test post_event.
gdb_py_test_multiple "post event insertion" \
  "python" "" \
  "someVal = 0" "" \
  "class Foo():" "" \
  "  def __call__(self):" "" \
  "    global someVal" "" \
  "    someVal += 1" "" \
  "gdb.post_event(Foo())" "" \
  "end" ""

gdb_test "python print someVal" "1" "test post event execution"
gdb_test "python gdb.post_event(str(1))" "RuntimeError: Posted event is not callable.*" "Test non callable class"

# Test (no) pagination of the executed command.
gdb_test "show height" {Number of lines gdb thinks are in a page is unlimited\.}
set lines 10
gdb_test_no_output "set height $lines"

set test "verify pagination beforehand"
gdb_test_multiple "python print \"\\n\" * $lines" $test {
    -re "---Type <return> to continue, or q <return> to quit---$" {
	pass $test
    }
}
gdb_test "q" "Quit" "verify pagination beforehand: q"

gdb_test "python if gdb.execute('python print \"\\\\n\" * $lines', to_string=True) == \"\\n\" * [expr $lines + 1]: print \"yes\"" "yes" "gdb.execute does not page"

set test "verify pagination afterwards"
gdb_test_multiple "python print \"\\n\" * $lines" $test {
    -re "---Type <return> to continue, or q <return> to quit---$" {
	pass $test
    }
}
gdb_test "q" "Quit" "verify pagination afterwards: q"

# Start with a fresh gdb.
clean_restart ${testfile}

# The following tests require execution.

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

runto [gdb_get_line_number "Break to end."]

# Test gdb.decode_line.
gdb_test "python gdb.decode_line(\"main.c:43\")" \
    "RuntimeError: No source file named main.c.*" "test decode_line no source named main"

gdb_py_test_silent_cmd "python symtab = gdb.decode_line()" "test decode_line current location" 1
gdb_test "python print len(symtab)" "2" "Test decode_line current location"
gdb_test "python print symtab\[0\]" "None" "Test decode_line expression parse"
gdb_test "python print len(symtab\[1\])" "1" "Test decode_line current location"
gdb_test "python print symtab\[1\]\[0\].symtab" "gdb/testsuite/gdb.python/python.c.*" "Test decode_line current locationn filename"
gdb_test "python print symtab\[1\]\[0\].line" "22" "Test decode_line current location line number"

gdb_py_test_silent_cmd "python symtab = gdb.decode_line(\"python.c:26 if foo\")" "test decode_line python.c:26" 1
gdb_test "python print len(symtab)" "2" "Test decode_line python.c:26 length"
gdb_test "python print symtab\[0\]" "if foo" "Test decode_line expression parse"
gdb_test "python print len(symtab\[1\])" "1" "Test decode_line python.c:26 length"
gdb_test "python print symtab\[1\]\[0\].symtab" "gdb/testsuite/gdb.python/python.c.*" "Test decode_line python.c:26 filename"
gdb_test "python print symtab\[1\]\[0\].line" "26" "Test decode_line python.c:26 line number"

gdb_test "python gdb.decode_line(\"randomfunc\")" \
    "RuntimeError: Function \"randomfunc\" not defined.*" "test decode_line randomfunc"
gdb_py_test_silent_cmd "python symtab = gdb.decode_line(\"func1\")" "test decode_line func1()" 1
gdb_test "python print len(symtab)" "2" "Test decode_line func1 length"
gdb_test "python print len(symtab\[1\])" "1" "Test decode_line func1 length"
gdb_test "python print symtab\[1\]\[0\].symtab" "gdb/testsuite/gdb.python/python-sl.c.*" "Test decode_line func1 filename"
gdb_test "python print symtab\[1\]\[0\].line" "19" "Test decode_line func1 line number"

# Test gdb.solib_name
gdb_test "p &func1" "" "func1 address"
gdb_py_test_silent_cmd "python func1 = gdb.history(0)" "Aquire func1 address" 1
gdb_test "python print gdb.solib_name(long(func1))" "gdb/testsuite/gdb.python/python-sl.sl" "test func1 solib location"

gdb_test "p &main" "" "main address"
gdb_py_test_silent_cmd "python main = gdb.history(0)" "Aquire main address" 1
gdb_test "python print gdb.solib_name(long(main))" "None" "test main solib location"