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#!/usr/bin/python
# This tool is used to generate the version scripts for libc and libm
# for every architecture.
import atexit
import os.path
import shutil
import tempfile
all_arches = ["arm", "arm64", "mips", "mips64", "x86", "x86_64"]
bionic_libc_root = os.path.join(os.environ["ANDROID_BUILD_TOP"], "bionic/libc")
bionic_libm_root = os.path.join(os.environ["ANDROID_BUILD_TOP"], "bionic/libm")
bionic_libdl_root = os.path.join(os.environ["ANDROID_BUILD_TOP"], "bionic/libdl")
libc_script = os.path.join(bionic_libc_root, "libc.map.txt")
libm_script = os.path.join(bionic_libm_root, "libm.map.txt")
libdl_script = os.path.join(bionic_libdl_root, "libdl.map.txt")
# TODO (dimity): generate architecture-specific version scripts as part of build
# temp directory where we store all intermediate files
bionic_temp = tempfile.mkdtemp(prefix="bionic_genversionscripts")
# Make sure the directory is deleted when the script exits.
atexit.register(shutil.rmtree, bionic_temp)
bionic_libc_root = os.path.join(os.environ["ANDROID_BUILD_TOP"], "bionic/libc")
warning = "Generated by genversionscripts.py. Do not edit."
class VersionScriptGenerator(object):
def run(self):
for script in [libc_script, libm_script, libdl_script]:
basename = os.path.basename(script)
dirname = os.path.dirname(script)
for arch in all_arches:
name = basename.split(".")[0] + "." + arch + ".map"
tmp_path = os.path.join(bionic_temp, name)
dest_path = os.path.join(dirname, name)
with open(tmp_path, "w") as fout:
with open(script, "r") as fin:
fout.write("# %s\n" % warning)
for line in fin:
index = line.find("#")
if index != -1:
arches = line[index+1:].split()
if arch not in arches:
continue
fout.write(line)
shutil.copyfile(tmp_path, dest_path)
generator = VersionScriptGenerator()
generator.run()
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