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Diffstat (limited to 'tests/run-make/inaccessible-temp-dir/Makefile')
| -rw-r--r-- | tests/run-make/inaccessible-temp-dir/Makefile | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/run-make/inaccessible-temp-dir/Makefile b/tests/run-make/inaccessible-temp-dir/Makefile new file mode 100644 index 000000000..abdba4eb8 --- /dev/null +++ b/tests/run-make/inaccessible-temp-dir/Makefile @@ -0,0 +1,32 @@ +# only-linux +# ignore-arm - linker error on `armhf-gnu` + +include ../tools.mk + +# 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`. + +all: + # Create an inaccessible directory + mkdir $(TMPDIR)/inaccessible + chmod 000 $(TMPDIR)/inaccessible + + # Run rustc with `-Ztemps-dir` set to a directory + # *inside* the inaccessible one, so that it can't create it + $(RUSTC) program.rs -Ztemps-dir=$(TMPDIR)/inaccessible/tmp 2>&1 \ + | $(CGREP) 'failed to find or create the directory specified by `--temps-dir`' + + # Make the inaccessible directory accessible, + # so that compiletest can delete the temp dir + chmod +rw $(TMPDIR)/inaccessible |