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# -*- Mode: Python -*-
# GObject-Introspection - a framework for introspecting GObject libraries
# Copyright (C) 2008 Colin Walters
# Copyright (C) 2008 Johan Dahlin
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
import os
import subprocess
import shutil
import tempfile
from .gdumpparser import IntrospectionBinary
from . import utils
from .config import DATADIR
# bugzilla.gnome.org/558436
# Compile a binary program which is then linked to a library
# we want to introspect, in order to call its get_type functions.
_PROGRAM_TEMPLATE = """/* This file is generated, do not edit */
#include <glib.h>
#include <string.h>
#include <stdlib.h>
%(gdump_include)s
int
main(int argc, char **argv)
{
GError *error = NULL;
const char *introspect_dump_prefix = "--introspect-dump=";
if (!g_thread_supported ()) g_thread_init (NULL);
g_type_init ();
%(init_sections)s
if (argc != 2 || !g_str_has_prefix (argv[1], introspect_dump_prefix))
{
g_printerr ("Usage: %%s --introspect-dump=input,output", argv[0]);
exit (1);
}
if (!g_irepository_dump (argv[1] + strlen(introspect_dump_prefix), &error))
{
g_printerr ("%%s\\n", error->message);
exit (1);
}
exit (0);
}
"""
class CompilerError(Exception):
pass
class LinkerError(Exception):
pass
class DumpCompiler(object):
def __init__(self, options, get_type_functions):
self._options = options
self._get_type_functions = get_type_functions
self._compiler_cmd = os.environ.get('CC', 'gcc')
self._linker_cmd = os.environ.get('CC', self._compiler_cmd)
self._pkgconfig_cmd = os.environ.get('PKG_CONFIG', 'pkg-config')
self._uninst_srcdir = os.environ.get(
'UNINSTALLED_INTROSPECTION_SRCDIR')
self._packages = ['gio-2.0 gthread-2.0']
self._packages.extend(options.packages)
# Public API
def run(self):
# We have to use the current directory to work around Unix
# sysadmins who mount /tmp noexec
tmpdir = tempfile.mkdtemp('', 'tmp-introspect', dir=os.getcwd())
tpl_args = {}
if self._uninst_srcdir is not None:
gdump_path = os.path.join(self._uninst_srcdir, 'girepository', 'gdump.c')
else:
gdump_path = os.path.join(os.path.join(DATADIR), 'gobject-introspection-1.0',
'gdump.c')
if not os.path.isfile(gdump_path):
raise SystemExit("Couldn't find %r" % (gdump_path, ))
gdump_file = open(gdump_path)
gdump_contents = gdump_file.read()
gdump_file.close()
tpl_args['gdump_include'] = gdump_contents
tpl_args['init_sections'] = "\n".join(self._options.init_sections)
c_path = self._generate_tempfile(tmpdir, '.c')
f = open(c_path, 'w')
f.write(_PROGRAM_TEMPLATE % tpl_args)
# We need to reference our get_type functions to make sure they are
# pulled in at the linking stage if the library is a static library
# rather than a shared library.
if len(self._get_type_functions) > 0:
for func in self._get_type_functions:
f.write("extern GType " + func + "(void);\n")
f.write("GType (*GI_GET_TYPE_FUNCS_[])(void) = {\n")
first = True
for func in self._get_type_functions:
if first:
first = False
else:
f.write(",\n")
f.write(" " + func)
f.write("\n};\n")
f.close()
o_path = self._generate_tempfile(tmpdir, '.o')
bin_path = self._generate_tempfile(tmpdir)
try:
self._compile(o_path, c_path)
except CompilerError, e:
if not utils.have_debug_flag('save-temps'):
shutil.rmtree(tmpdir)
raise SystemExit('compilation of temporary binary failed:' + str(e))
try:
self._link(bin_path, o_path)
except LinkerError, e:
if not utils.have_debug_flag('save-temps'):
shutil.rmtree(tmpdir)
raise SystemExit('linking of temporary binary failed: ' + str(e))
return IntrospectionBinary([bin_path], tmpdir)
# Private API
def _generate_tempfile(self, tmpdir, suffix=''):
tmpl = '%s-%s%s' % (self._options.namespace_name,
self._options.namespace_version, suffix)
return os.path.join(tmpdir, tmpl)
def _run_pkgconfig(self, flag):
proc = subprocess.Popen(
[self._pkgconfig_cmd, flag] + self._packages,
stdout=subprocess.PIPE)
return proc.communicate()[0].split()
def _compile(self, output, *sources):
# Not strictly speaking correct, but easier than parsing shell
args = self._compiler_cmd.split()
# Do not add -Wall when using init code as we do not include any
# header of the library being introspected
if self._compiler_cmd == 'gcc' and not self._options.init_sections:
args.append('-Wall')
pkgconfig_flags = self._run_pkgconfig('--cflags')
args.extend(pkgconfig_flags)
cflags = os.environ.get('CFLAGS')
if (cflags):
for iflag in cflags.split():
args.append(iflag)
for include in self._options.cpp_includes:
args.append('-I' + include)
args.extend(['-c', '-o', output])
for source in sources:
if not os.path.exists(source):
raise CompilerError(
"Could not find c source file: %s" % (source, ))
args.extend(list(sources))
if not self._options.quiet:
print "g-ir-scanner: compile: %s" % (
subprocess.list2cmdline(args), )
try:
subprocess.check_call(args)
except subprocess.CalledProcessError, e:
raise CompilerError(e)
def _link(self, output, *sources):
args = []
libtool = utils.get_libtool_command(self._options)
if libtool:
args.extend(libtool)
args.append('--mode=link')
args.append('--tag=CC')
args.append('--silent')
args.extend(self._linker_cmd.split())
args.extend(['-o', output])
if libtool:
args.append('-export-dynamic')
cflags = os.environ.get('CFLAGS')
if (cflags):
for iflag in cflags.split():
args.append(iflag)
# Make sure to list the library to be introspected first since it's
# likely to be uninstalled yet and we want the uninstalled RPATHs have
# priority (or we might run with installed library that is older)
if not self._options.external_library:
self._add_link_internal_args(args, libtool)
else:
self._add_link_external_args(args)
for source in sources:
if not os.path.exists(source):
raise CompilerError(
"Could not find object file: %s" % (source, ))
args.extend(list(sources))
if not self._options.quiet:
print "g-ir-scanner: link: %s" % (
subprocess.list2cmdline(args), )
try:
subprocess.check_call(args)
except subprocess.CalledProcessError, e:
raise LinkerError(e)
def _add_link_internal_args(self, args, libtool):
# An "internal" link is where the library to be introspected
# is being built in the current directory.
# Search the current directory first
args.append('-L.')
# https://bugzilla.gnome.org/show_bug.cgi?id=625195
if not libtool:
args.append('-Wl,-rpath=.')
for library in self._options.libraries:
if library.endswith(".la"): # explicitly specified libtool library
args.append(library)
else:
args.append('-l' + library)
for library_path in self._options.library_paths:
args.append('-L' + library_path)
args.extend(self._run_pkgconfig('--libs'))
def _add_link_external_args(self, args):
# An "external" link is where the library to be introspected
# is installed on the system; this case is used for the scanning
# of GLib in gobject-introspection itself.
args.extend(self._run_pkgconfig('--libs'))
for library in self._options.libraries:
if library.endswith(".la"): # explicitly specified libtool library
args.append(library)
else:
args.append('-l' + library)
def compile_introspection_binary(options, get_type_functions):
dc = DumpCompiler(options, get_type_functions)
return dc.run()
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