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generate-cfg-c.py
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generate-cfg-c.py
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# Copyright 2011, 2012 David Malcolm <dmalcolm@redhat.com>
# Copyright 2011, 2012 Red Hat, Inc.
#
# This 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/>.
from cpybuilder import *
from wrapperbuilder import PyGccWrapperTypeObject
cu = CompilationUnit()
cu.add_include('gcc-python.h')
cu.add_include('gcc-python-wrappers.h')
cu.add_include('gcc-plugin.h')
cu.add_include("basic-block.h")
modinit_preinit = ''
modinit_postinit = ''
def generate_edge():
#
# Generate the gcc.Edge class:
#
global modinit_preinit
global modinit_postinit
getsettable = PyGetSetDefTable('gcc_Edge_getset_table',
[PyGetSetDef('src',
cu.add_simple_getter('gcc_Edge_get_src',
'PyGccEdge',
'gcc_python_make_wrapper_basic_block(self->e->src)'),
None,
'The source gcc.BasicBlock of this edge'),
PyGetSetDef('dest',
cu.add_simple_getter('gcc_Edge_get_dest',
'PyGccEdge',
'gcc_python_make_wrapper_basic_block(self->e->dest)'),
None,
'The destination gcc.BasicBlock of this edge')],
identifier_prefix = 'gcc_Edge',
typename = 'PyGccEdge')
for flag in ('EDGE_FALLTHRU', 'EDGE_ABNORMAL', 'EDGE_ABNORMAL_CALL',
'EDGE_EH', 'EDGE_FAKE', 'EDGE_DFS_BACK', 'EDGE_CAN_FALLTHRU',
'EDGE_IRREDUCIBLE_LOOP', 'EDGE_SIBCALL', 'EDGE_LOOP_EXIT',
'EDGE_TRUE_VALUE', 'EDGE_FALSE_VALUE', 'EDGE_EXECUTABLE',
'EDGE_CROSSING'):
assert flag.startswith('EDGE_')
flagname = flag[5:].lower()
getsettable.add_simple_getter(cu,
flagname,
'PyBool_FromLong(self->e->flags & %s)' % flag,
'Boolean, corresponding to flag %s' % flag)
cu.add_defn(getsettable.c_defn())
pytype = PyGccWrapperTypeObject(identifier = 'gcc_EdgeType',
localname = 'Edge',
tp_name = 'gcc.Edge',
tp_dealloc = 'gcc_python_wrapper_dealloc',
struct_name = 'PyGccEdge',
tp_new = 'PyType_GenericNew',
#tp_repr = '(reprfunc)gcc_Edge_repr',
#tp_str = '(reprfunc)gcc_Edge_repr',
tp_getset = getsettable.identifier,
)
cu.add_defn(pytype.c_defn())
modinit_preinit += pytype.c_invoke_type_ready()
modinit_postinit += pytype.c_invoke_add_to_module()
generate_edge()
def generate_basic_block():
#
# Generate the gcc.BasicBlock class:
#
global modinit_preinit
global modinit_postinit
getsettable = PyGetSetDefTable('gcc_BasicBlock_getset_table',
[PyGetSetDef('preds',
'gcc_BasicBlock_get_preds',
None,
'The list of predecessor gcc.Edge instances leading into this block'),
PyGetSetDef('succs',
'gcc_BasicBlock_get_succs',
None,
'The list of successor gcc.Edge instances leading out of this block'),
PyGetSetDef('gimple',
'gcc_BasicBlock_get_gimple',
None,
'The list of gcc.Gimple instructions, if appropriate for this pass, or None'),
PyGetSetDef('phi_nodes',
'gcc_BasicBlock_get_phi_nodes',
None,
'The list of gcc.GimplePhi phoney functions, if appropriate for this pass, or None'),
PyGetSetDef('rtl',
'gcc_BasicBlock_get_rtl',
None,
'The list of gcc.Rtl instructions, if appropriate for this pass, or None'),
],
identifier_prefix='gcc_BasicBlock',
typename='PyGccBasicBlock')
getsettable.add_simple_getter(cu,
'index',
'gcc_python_int_from_long(self->bb->index)',
None)
cu.add_defn(getsettable.c_defn())
pytype = PyGccWrapperTypeObject(identifier = 'gcc_BasicBlockType',
localname = 'BasicBlock',
tp_name = 'gcc.BasicBlock',
tp_dealloc = 'gcc_python_wrapper_dealloc',
struct_name = 'PyGccBasicBlock',
tp_new = 'PyType_GenericNew',
#tp_repr = '(reprfunc)gcc_BasicBlock_repr',
#tp_str = '(reprfunc)gcc_BasicBlock_repr',
tp_getset = getsettable.identifier,
)
cu.add_defn(pytype.c_defn())
modinit_preinit += pytype.c_invoke_type_ready()
modinit_postinit += pytype.c_invoke_add_to_module()
generate_basic_block()
def generate_cfg():
#
# Generate the gcc.Cfg class:
#
global modinit_preinit
global modinit_postinit
getsettable = PyGetSetDefTable('gcc_Cfg_getset_table',
[PyGetSetDef('basic_blocks',
'gcc_Cfg_get_basic_blocks',
None,
'The list of gcc.BasicBlock instances in this graph'),
PyGetSetDef('entry',
cu.add_simple_getter('gcc_Cfg_get_entry',
'PyGccCfg',
'gcc_python_make_wrapper_basic_block(self->cfg->x_entry_block_ptr)'),
None,
'The initial gcc.BasicBlock in this graph'),
PyGetSetDef('exit',
cu.add_simple_getter('gcc_Cfg_get_exit',
'PyGccCfg',
'gcc_python_make_wrapper_basic_block(self->cfg->x_exit_block_ptr)'),
None,
'The final gcc.BasicBlock in this graph'),
])
cu.add_defn(getsettable.c_defn())
pytype = PyGccWrapperTypeObject(identifier = 'gcc_CfgType',
localname = 'Cfg',
tp_name = 'gcc.Cfg',
tp_dealloc = 'gcc_python_wrapper_dealloc',
struct_name = 'PyGccCfg',
tp_new = 'PyType_GenericNew',
#tp_repr = '(reprfunc)gcc_Cfg_repr',
#tp_str = '(reprfunc)gcc_Cfg_repr',
tp_getset = getsettable.identifier,
)
methods = PyMethodTable('gcc_Cfg_methods', [])
methods.add_method('get_block_for_label',
'gcc_Cfg_get_block_for_label',
'METH_VARARGS',
"Given a gcc.LabelDecl, get the corresponding gcc.BasicBlock")
cu.add_defn(methods.c_defn())
pytype.tp_methods = methods.identifier
cu.add_defn(pytype.c_defn())
modinit_preinit += pytype.c_invoke_type_ready()
modinit_postinit += pytype.c_invoke_add_to_module()
generate_cfg()
cu.add_defn("""
int autogenerated_cfg_init_types(void)
{
""" + modinit_preinit + """
return 1;
error:
return 0;
}
""")
cu.add_defn("""
void autogenerated_cfg_add_types(PyObject *m)
{
""" + modinit_postinit + """
}
""")
print(cu.as_str())