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Author SHA1 Message Date
Robert Hensing d038a67bd3 Fix segfault or stack overflow caused by large derivation fields
This removes a dynamic stack allocation, making the derivation
unparsing logic robust against overflows when large strings are
added to a derivation.
Overflow behavior depends on the platform and stack configuration.

For instance, x86_64-linux/glibc behaves as (somewhat) expected:

$ (ulimit -s 20000; nix-instantiate tests/lang/eval-okay-big-derivation-attr.nix)
error: stack overflow (possible infinite recursion)

$ (ulimit -s 40000; nix-instantiate tests/lang/eval-okay-big-derivation-attr.nix)
error: expression does not evaluate to a derivation (or a set or list of those)

However, on aarch64-darwin:

$ nix-instantiate big-attr.nix                                                                                                                                                                                                                                                       ~
zsh: segmentation fault  nix-instantiate big-attr.nix

This indicates a slight flaw in the single stack protection page
approach that is not encountered with normal stack frames.
2022-01-19 15:21:56 +01:00
Eelco Dolstra 31ab4c3816 Test whether build/repair results are read-only 2020-09-23 19:09:58 +02:00
Eelco Dolstra af3db853fa Handle $TMPDIR ending with a slash
This caused the gc test to fail on Darwin.
2016-10-19 15:19:38 +02:00
Eelco Dolstra e95f3c4443 Fix test
http://hydra.nixos.org/build/36631898
2016-06-17 15:26:10 +02:00
Eelco Dolstra 8af7d766f0 * Refactoring: remove unnecessary variables from the tests. 2011-10-10 21:32:34 +00:00
Eelco Dolstra d95b68fde3 2008-12-03 16:15:38 +00:00
Eelco Dolstra f60aa2aa21 2007-12-31 00:34:44 +00:00
Eelco Dolstra b5ddcf58ad * Fix the hashDerivationModulo test. I should really investigate
*why* the test failed...
2007-12-30 23:59:10 +00:00
Eelco Dolstra 9c3099d328 * Purify `make check'. 2006-07-21 13:21:43 +00:00
Eelco Dolstra 88e54153dc * Add a precise test for hashDerivatioModulo. 2006-07-19 15:49:29 +00:00
Eelco Dolstra e3daee919d * Test `nix-store -q --binding'. 2006-03-01 15:46:22 +00:00
Eelco Dolstra b90787290d * TDD! Woohoo! 2006-03-01 14:26:03 +00:00
Eelco Dolstra 84c4631221 * Simplification. 2006-03-01 12:51:18 +00:00
Eelco Dolstra a4c63c6e8e * Make it easy to run individual tests from the command line. 2006-03-01 12:15:33 +00:00
Eelco Dolstra 98df735b51 * Propagate the deriver of a path through the substitute mechanism.
* Removed some dead code (successor stuff) from nix-push.
* Updated terminology in the tests (store expr -> drv path).
* Check that the deriver is set properly in the tests.
2005-02-09 12:57:13 +00:00
Eelco Dolstra 80faa2f98a * In nix-store: change --build' back to --realise'. Also brought
back the query flag `--force-realise'.
* Fixed some of the tests.
2005-01-25 10:55:33 +00:00
Eelco Dolstra 06c77bf7a8 * Change extension .store' to .drv'.
* Re-enable `nix-store --query --requisites'.
2005-01-19 14:36:00 +00:00
Eelco Dolstra 256eeab711 * Allow the location of the store etc. to be specified using
environment variables.
* Started adding some automatic tests.
* Do a `make check' when building RPMs.
2004-05-04 12:15:30 +00:00