| # 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 |
| |
| f = open(sys.argv[1], 'wb') |
| |
| components = sys.argv[2].split() # splits on whitespace |
| enable_static = sys.argv[3] |
| llvm_config = sys.argv[4] |
| stdcpp_name = sys.argv[5] |
| use_libcpp = sys.argv[6] |
| |
| 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 llvm_config: args = `{}`".format(args)) |
| print(err) |
| sys.exit(1) |
| return out |
| |
| def runErr(args): |
| proc = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
| out, err = proc.communicate() |
| |
| if err: |
| return False, out |
| else: |
| return True, out |
| |
| f.write("\n") |
| |
| args = [llvm_config, '--shared-mode'] |
| args.extend(components) |
| llvm_shared, out = runErr(args) |
| if llvm_shared: |
| llvm_shared = 'shared' in out |
| |
| # LLVM libs |
| args = [llvm_config, '--libs', '--system-libs'] |
| args.extend(components) |
| out = run(args) |
| for lib in out.strip().replace("\n", ' ').split(' '): |
| if len(lib) == 0: |
| continue |
| # in some cases we get extra spaces in between libs so ignore those |
| if len(lib) == 1 and lib == ' ': |
| continue |
| # not all libs strictly follow -lfoo, on Bitrig, there is -pthread |
| if lib[0:2] == '-l': |
| lib = lib.strip()[2:] |
| elif lib[0] == '-': |
| lib = lib.strip()[1:] |
| f.write("#[link(name = \"" + lib + "\"") |
| if not llvm_shared and 'LLVM' in lib: |
| f.write(", kind = \"static\"") |
| f.write(")]\n") |
| |
| # LLVM ldflags |
| out = run([llvm_config, '--ldflags']) |
| for lib in out.strip().split(' '): |
| if lib[:2] == "-l": |
| f.write("#[link(name = \"" + lib[2:] + "\")]\n") |
| |
| # C++ runtime library |
| out = run([llvm_config, '--cxxflags']) |
| if enable_static == '1': |
| assert('stdlib=libc++' not in out) |
| f.write("#[link(name = \"" + stdcpp_name + "\", kind = \"static\")]\n") |
| else: |
| # Note that we use `cfg_attr` here because on MSVC the C++ standard library |
| # is not c++ or stdc++, but rather the linker takes care of linking the |
| # right standard library. |
| if use_libcpp != "0" or 'stdlib=libc++' in out: |
| f.write("#[cfg_attr(not(target_env = \"msvc\"), link(name = \"c++\"))]\n") |
| else: |
| f.write("#[cfg_attr(not(target_env = \"msvc\"), link(name = \"" + stdcpp_name + "\"))]\n") |
| |
| # Attach everything to an extern block |
| f.write("extern {}\n") |