33 lines
1.2 KiB
Makefile
33 lines
1.2 KiB
Makefile
# only-linux
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# ignore-arm - linker error on `armhf-gnu`
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include ../tools.mk
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# Issue #66530: We would ICE if someone compiled with `-o /dev/null`,
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# because we would try to generate auxiliary files in `/dev/` (which
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# at least the OS X file system rejects).
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#
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# An attempt to `-Ztemps-dir` into a directory we cannot write into should
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# indeed be an error; but not an ICE.
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#
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# However, some folks run tests as root, which can write `/dev/` and end
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# up clobbering `/dev/null`. Instead we'll use an inaccessible path, which
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# also used to ICE, but even root can't magically write there.
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#
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# Note that `-Ztemps-dir` uses `create_dir_all` so it is not sufficient to
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# use a directory with non-existing parent like `/does-not-exist/output`.
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all:
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# Create an inaccessible directory
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mkdir $(TMPDIR)/inaccessible
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chmod 000 $(TMPDIR)/inaccessible
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# Run rustc with `-Ztemps-dir` set to a directory
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# *inside* the inaccessible one, so that it can't create it
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$(RUSTC) program.rs -Ztemps-dir=$(TMPDIR)/inaccessible/tmp 2>&1 \
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| $(CGREP) 'failed to find or create the directory specified by `--temps-dir`'
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# Make the inaccessible directory accessible,
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# so that compiletest can delete the temp dir
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chmod +rw $(TMPDIR)/inaccessible
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