rust/src/etc/mklldef.py
Alex Crichton b538189ba0 mk: Generate a .def file for rustc_llvm on MSVC
Windows needs explicit exports of functions from DLLs but LLVM does not mention
any of its symbols as being export-able from a DLL. The compiler, however,
relies on being able to use LLVM symbols across DLL boundaries so we need to
force many of LLVM's symbols to be exported from `rustc_llvm.dll`. This commit
adds support for generation of a `rustc_llvm.def` file which is passed along to
the linker when generating `rustc_llvm.dll` which should keep all these symbols
exportable and usable.
2015-05-19 10:53:07 -07:00

26 lines
857 B
Python

# Copyright 2015 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 sys
input_file = sys.argv[1]
output_file = sys.argv[2]
name = sys.argv[3]
with open(input_file, 'r') as f:
with open(output_file, 'w') as g:
print >> g, 'LIBRARY ' + name
print >> g, 'EXPORTS'
for x in f:
x = str(x)
if not x.startswith(' pub fn LLVM'): continue
name = x[11:x.find('(')]
print >> g, ' ' + name