# Copyright 2018-2019 Florian Fischer <florian.fl.fischer@fau.de>
#
# This file is part of allocbench.
#
# allocbench 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.
#
# allocbench 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 allocbench.  If not, see <http://www.gnu.org/licenses/>.

"""Glibc definitions"""

from src.allocator import Allocator, AllocatorSources, LIBRARY_PATH

VERSION = 2.29

GLIBC_SRC = AllocatorSources("glibc",
                      retrieve_cmds=["git clone git://sourceware.org/git/glibc.git"],
                      prepare_cmds=[f"git checkout glibc-{VERSION}"],
                      reset_cmds=["git reset --hard"])


class Glibc(Allocator):
    """Glibc definition for allocbench

    Glibcs are loaded using their own supplied loader"""
    def __init__(self, name, **kwargs):

        kwargs["sources"] = GLIBC_SRC

        configure_args = ""
        if "configure_args" in kwargs:
            configure_args = kwargs["configure_args"]
            del(kwargs["configure_args"])

        kwargs["build_cmds"] = ["mkdir -p glibc-build",
                                "cd glibc-build; {srcdir}/configure --prefix={dir} " + configure_args,
                                "cd glibc-build; make",
                                "cd glibc-build; make install"]

        kwargs["cmd_prefix"] = ("{dir}/lib/ld-linux-x86-64.so.2 --library-path {dir}/lib:"
                                + LIBRARY_PATH)

        # kwargs["LD_LIBRARY_PATH"] = "{dir}/lib:" + library_path

        super().__init__(name, **kwargs)


glibc = Glibc("glibc", color="xkcd:red")

glibc_notc = Glibc("glibc-noThreadCache",
                   configure_args="--disable-experimental-malloc",
                   color="xkcd:maroon")

glibc_nofs = Glibc("glibc-noFalsesharing",
                   patches=["{patchdir}/glibc_2.29_no_passive_falsesharing.patch"],
                   color="xkcd:pink")

glibc_nofs_fancy = Glibc("glibc-noFalsesharingClever",
                         patches=["{patchdir}/glibc_2.29_no_passive_falsesharing_fancy.patch"],
                         color="xkcd:orange")