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Merge pull request #1075 from CohenArthur/add-null-after-argv

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jit: Add `NULL` as terminating argv
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bjorn3 2020-08-22 11:38:03 +02:00 committed by GitHub
commit 42c41740d4
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1 changed files with 5 additions and 2 deletions
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7
src/driver/jit.rs
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@ -82,8 +82,11 @@ pub(super) fn run_jit(tcx: TyCtxt<'_>) -> ! {
.chain(args.split(" "))
.map(|arg| CString::new(arg).unwrap())
.collect::<Vec<_>>();
let argv = args.iter().map(|arg| arg.as_ptr()).collect::<Vec<_>>();
// TODO: Rust doesn't care, but POSIX argv has a NULL sentinel at the end
let mut argv = args.iter().map(|arg| arg.as_ptr()).collect::<Vec<_>>();
// Push a null pointer as a terminating argument. This is required by POSIX and
// useful as some dynamic linkers use it as a marker to jump over.
argv.push(std::ptr::null());
let ret = f(args.len() as c_int, argv.as_ptr());