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# Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
# file at the top-level directory of this distribution and at
# http://rust-lang.org/COPYRIGHT.
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.
import os
import sys
import subprocess
import itertools
from os import path
f = open(sys.argv[1], 'wb')
components = sys.argv[2].split(' ')
components = [i for i in components if i] # ignore extra whitespaces
enable_static = sys.argv[3]
f.write("""// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// WARNING: THIS IS A GENERATED FILE, DO NOT MODIFY
// take a look at src/etc/mklldeps.py if you're interested
""")
def run(args):
proc = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = proc.communicate()
if err:
print("failed to run llconfig: args = `{}`".format(args))
print(err)
sys.exit(1)
return out
for llconfig in sys.argv[4:]:
f.write("\n")
out = run([llconfig, '--host-target'])
arch, os = out.split('-', 1)
arch = 'x86' if arch == 'i686' or arch == 'i386' else arch
if 'darwin' in os:
os = 'macos'
elif 'linux' in os:
os = 'linux'
elif 'freebsd' in os:
os = 'freebsd'
elif 'dragonfly' in os:
os = 'dragonfly'
elif 'android' in os:
os = 'android'
elif 'win' in os or 'mingw' in os:
os = 'windows'
cfg = [
"target_arch = \"" + arch + "\"",
"target_os = \"" + os + "\"",
]
f.write("#[cfg(all(" + ', '.join(cfg) + "))]\n")
version = run([llconfig, '--version']).strip()
# LLVM libs
if version < '3.5':
args = [llconfig, '--libs']
else:
args = [llconfig, '--libs', '--system-libs']
args.extend(components)
out = run(args)
for lib in out.strip().replace("\n", ' ').split(' '):
lib = lib.strip()[2:] # chop of the leading '-l'
f.write("#[link(name = \"" + lib + "\"")
# LLVM libraries are all static libraries
if 'LLVM' in lib:
f.write(", kind = \"static\"")
f.write(")]\n")
# llvm-config before 3.5 didn't have a system-libs flag
if version < '3.5':
if os == 'win32':
f.write("#[link(name = \"imagehlp\")]")
# LLVM ldflags
out = run([llconfig, '--ldflags'])
for lib in out.strip().split(' '):
if lib[:2] == "-l":
f.write("#[link(name = \"" + lib[2:] + "\")]\n")
# C++ runtime library
out = run([llconfig, '--cxxflags'])
if enable_static == '1':
assert('stdlib=libc++' not in out)
f.write("#[link(name = \"stdc++\", kind = \"static\")]\n")
else:
if 'stdlib=libc++' in out:
f.write("#[link(name = \"c++\")]\n")
else:
f.write("#[link(name = \"stdc++\")]\n")
# Attach everything to an extern block
f.write("extern {}\n")
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