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work around MinGW linker bug for ASLR on Windows

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Closes #16514
This commit is contained in:
Daniel Micay 2014-08-18 14:15:05 -04:00
parent 7074592ee1
commit 96f5eba4f5
1 changed files with 8 additions and 1 deletions
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9
src/librustc/middle/trans/base.rs
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@ -87,7 +87,7 @@ use std::cell::{Cell, RefCell};
use std::rc::Rc;
use std::{i8, i16, i32, i64};
use syntax::abi::{X86, X86_64, Arm, Mips, Mipsel, Rust, RustCall};
use syntax::abi::{RustIntrinsic, Abi};
use syntax::abi::{RustIntrinsic, Abi, OsWindows};
use syntax::ast_util::{local_def, is_local};
use syntax::attr::AttrMetaMethods;
use syntax::attr;
@ -2446,6 +2446,13 @@ pub fn create_entry_wrapper(ccx: &CrateContext,
&ccx.int_type);
let llfn = decl_cdecl_fn(ccx, "main", llfty, ty::mk_nil());
// FIXME: #16581: Marking a symbol in the executable with `dllexport`
// linkage forces MinGW's linker to output a `.reloc` section for ASLR
if ccx.sess().targ_cfg.os == OsWindows {
unsafe { llvm::LLVMRustSetDLLExportStorageClass(llfn) }
}
let llbb = "top".with_c_str(|buf| {
unsafe {
llvm::LLVMAppendBasicBlockInContext(ccx.llcx, llfn, buf)