44 lines
1.7 KiB
Rust
44 lines
1.7 KiB
Rust
// Issue #66530: We would ICE if someone compiled with `-o /dev/null`,
|
|
// because we would try to generate auxiliary files in `/dev/` (which
|
|
// at least the OS X file system rejects).
|
|
//
|
|
// An attempt to `-Ztemps-dir` into a directory we cannot write into should
|
|
// indeed be an error; but not an ICE.
|
|
//
|
|
// However, some folks run tests as root, which can write `/dev/` and end
|
|
// up clobbering `/dev/null`. Instead we'll use an inaccessible path, which
|
|
// also used to ICE, but even root can't magically write there.
|
|
//
|
|
// Note that `-Ztemps-dir` uses `create_dir_all` so it is not sufficient to
|
|
// use a directory with non-existing parent like `/does-not-exist/output`.
|
|
// See https://github.com/rust-lang/rust/issues/66530
|
|
|
|
//@ ignore-riscv64
|
|
// FIXME: The riscv64gc-gnu build container runs as root, and can always write
|
|
// into `inaccessible/tmp`. Ideally, the riscv64-gnu docker container
|
|
// would use a non-root user, but this leads to issues with
|
|
// `mkfs.ext4 -d`, as well as mounting a loop device for the rootfs.
|
|
//@ ignore-arm
|
|
// Reason: linker error on `armhf-gnu`
|
|
//@ ignore-windows
|
|
// Reason: `set_readonly` has no effect on directories
|
|
// and does not prevent modification.
|
|
|
|
use run_make_support::{rfs, rustc, test_while_readonly};
|
|
|
|
fn main() {
|
|
// Create an inaccessible directory.
|
|
rfs::create_dir("inaccessible");
|
|
test_while_readonly("inaccessible", || {
|
|
// Run rustc with `-Z temps-dir` set to a directory *inside* the inaccessible one,
|
|
// so that it can't create `tmp`.
|
|
rustc()
|
|
.input("program.rs")
|
|
.arg("-Ztemps-dir=inaccessible/tmp")
|
|
.run_fail()
|
|
.assert_stderr_contains(
|
|
"failed to find or create the directory specified by `--temps-dir`",
|
|
);
|
|
});
|
|
}
|