114 lines
3.7 KiB
Python
114 lines
3.7 KiB
Python
# Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
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# file at the top-level directory of this distribution and at
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# http://rust-lang.org/COPYRIGHT.
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#
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# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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# option. This file may not be copied, modified, or distributed
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# except according to those terms.
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import os
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import sys
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import subprocess
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f = open(sys.argv[1], 'wb')
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components = sys.argv[2].split() # splits on whitespace
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enable_static = sys.argv[3]
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llvm_config = sys.argv[4]
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stdcpp_name = sys.argv[5]
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use_libcpp = sys.argv[6]
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f.write("""// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// WARNING: THIS IS A GENERATED FILE, DO NOT MODIFY
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// take a look at src/etc/mklldeps.py if you're interested
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""")
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def run(args):
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proc = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = proc.communicate()
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if err:
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print("failed to run llvm_config: args = `{}`".format(args))
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print(err)
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sys.exit(1)
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return out
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def runErr(args):
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proc = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = proc.communicate()
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if err:
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return False, out
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else:
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return True, out
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f.write("\n")
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args = [llvm_config, '--shared-mode']
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args.extend(components)
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llvm_shared, out = runErr(args)
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if llvm_shared:
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llvm_shared = 'shared' in out
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# LLVM libs
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args = [llvm_config, '--libs', '--system-libs']
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args.extend(components)
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out = run(args)
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for lib in out.strip().replace("\n", ' ').split(' '):
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if len(lib) == 0:
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continue
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# in some cases we get extra spaces in between libs so ignore those
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if len(lib) == 1 and lib == ' ':
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continue
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# not all libs strictly follow -lfoo, on Bitrig, there is -pthread
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if lib[0:2] == '-l':
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lib = lib.strip()[2:]
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elif lib[0] == '-':
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lib = lib.strip()[1:]
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# If this actually points at a literal file then we're on MSVC which now
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# prints full paths, so get just the name of the library and strip off the
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# trailing ".lib"
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elif os.path.exists(lib):
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lib = os.path.basename(lib)[:-4]
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elif lib[-4:] == '.lib':
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lib = lib[:-4]
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f.write("#[link(name = \"" + lib + "\"")
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if not llvm_shared and 'LLVM' in lib:
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f.write(", kind = \"static\"")
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f.write(")]\n")
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# LLVM ldflags
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out = run([llvm_config, '--ldflags'])
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for lib in out.strip().split(' '):
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if lib[:2] == "-l":
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f.write("#[link(name = \"" + lib[2:] + "\")]\n")
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# C++ runtime library
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out = run([llvm_config, '--cxxflags'])
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if enable_static == '1':
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assert('stdlib=libc++' not in out)
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f.write("#[link(name = \"" + stdcpp_name + "\", kind = \"static\")]\n")
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else:
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# Note that we use `cfg_attr` here because on MSVC the C++ standard library
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# is not c++ or stdc++, but rather the linker takes care of linking the
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# right standard library.
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if use_libcpp != "0" or 'stdlib=libc++' in out:
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f.write("#[cfg_attr(not(target_env = \"msvc\"), link(name = \"c++\"))]\n")
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else:
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f.write("#[cfg_attr(not(target_env = \"msvc\"), link(name = \"" + stdcpp_name + "\"))]\n")
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# Attach everything to an extern block
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f.write("extern {}\n")
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