If we've consumed the entire input, that doesn't actually mean we're
done decompressing - there might be more output left. This worked (?)
in most cases because the input and output sizes are pretty comparable,
but sometimes they're not and then things get very funny.
Change-Id: I73435a654a911b8ce25119f713b80706c5783c1b
without this we will not be able to get rid of makeDecompressionSink,
which in turn will be necessary to get rid of sourceToSink (since the
libarchive archive wrapper *must* be a Source due to api limitations)
Change-Id: Iccd3d333ba2cbcab49cb5a1d3125624de16bce27
don't consume a sink, return a source instead. the only reason to not do
this is a very slight reduction in dynamic allocations, but since we are
going to *at least* do disk io that will not be a lot of overhead anyway
Change-Id: Iae2f879ec64c3c3ac1d5310eeb6a85e696d4614a
if we want have getFile return a source instead of consuming a sink
we'll have to disambiguate this overload another way, eg like this.
Change-Id: Ia26de2020c309a37e7ccc3775c1ad1f32e0a778b
This happened during a PathSubstitutionGoal of a .drv file:
substitution of '/tmp/jade/nix-test/ca/eval-store/store/1lj7lsq5y0f25mfbnq6d3zd0bw5ay33n-dependencies-input-2.drv'
What happened here is that since PathSubstitutionGoal is not a
DerivationGoal, in production builds, the UB was not caught, since it
would early-exit from failing a dynamic_cast to DerivationGoal * on the
very next line, but before the null reference was ever used.
This was nonetheless UB. The fix should be to just rearrange the two
lines; I don't think there is a further bug there, since *substituting a
.drv* **necessarily** means you cannot have the representation of
the derivation as would be necessary for drv to not be null there.
Test failure:
++(eval-store.sh:12) _RR_TRACE_DIR=/home/jade/.local/share/rr rr record -- nix build -f dependencies.nix --eval-store /tmp/jade/nix-test/ca/eval-store/eval-store -o /tmp/jade/nix-test/ca/eval-store/result
don't know how to build these paths:
/tmp/jade/nix-test/ca/eval-store/store/6y51mf0p57ggipgab6hdjabbvplzsicq-dependencies-top.drv
copying 1 paths...
copying path '/tmp/jade/nix-test/ca/eval-store/store/8027afyvqb87y1sf5xhdkqsflqn1ziy8-dependencies.builder0.sh' to 'local'...
copying 1 paths...
copying path '/tmp/jade/nix-test/ca/eval-store/store/7r5pqyncvfgrryf9gzy1z56z3xigi61x-builder-dependencies-input-0.sh' to 'local'...
copying 1 paths...
copying path '/tmp/jade/nix-test/ca/eval-store/store/nhmgm87zlqy3ks96dxrn7l37b72azi99-builder-dependencies-input-1.sh' to 'local'...
copying 1 paths...
copying path '/tmp/jade/nix-test/ca/eval-store/store/nq4qa2j6y8ajqazlfq6h46ck637my1n6-builder-dependencies-input-2.sh' to 'local'...
copying 1 paths...
copying path '/tmp/jade/nix-test/ca/eval-store/store/6vh0vna9l5afck01y7iaks3hm9ikwqyj-builder-fod-input.sh' to 'local'...
building '/tmp/jade/nix-test/ca/eval-store/store/gy91pqymf2nc5v7ld1bad94xpwxdi25s-dependencies-input-0.drv'...
building '/tmp/jade/nix-test/ca/eval-store/store/w7wlkjx97ivmnrymkac5av3nyp94hzvq-dependencies-input-1.drv'...
../src/libstore/build/derivation-goal.cc:1556:22: runtime error: reference binding to null pointer of type 'Derivation'
0 0x734ba59a6886 in nix::DerivationGoal::waiteeDone(std::shared_ptr<nix::Goal>, nix::Goal::ExitCode) /home/jade/lix/lix2/build/src/libstore/build/derivation-goal.cc:1556:12
1 0x734ba59c0962 in nix::Goal::amDone(nix::Goal::ExitCode, std::optional<nix::Error>) /home/jade/lix/lix2/build/src/libstore/build/goal.cc:95:25
2 0x734ba5a1c44a in nix::PathSubstitutionGoal::done(nix::Goal::ExitCode, nix::BuildResult::Status, std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>) /home/jade/lix/lix2/build/src/libstore/build/substitution-goal.cc:38:5
3 0x734ba5a1b454 in nix::PathSubstitutionGoal::init() /home/jade/lix/lix2/build/src/libstore/build/substitution-goal.cc:56:9
4 0x734ba5a2a6c6 in nix::Worker::run(std::set<std::shared_ptr<nix::Goal>, nix::CompareGoalPtrs, std::allocator<std::shared_ptr<nix::Goal>>> const&) /home/jade/lix/lix2/build/src/libstore/build/worker.cc:320:23
5 0x734ba59b93d8 in nix::Store::buildPathsWithResults(std::vector<nix::DerivedPath, std::allocator<nix::DerivedPath>> const&, nix::BuildMode, std::shared_ptr<nix::Store>) /home/jade/lix/lix2/build/src/libstore/build/entry-points.cc:60:12
6 0x734ba663c107 in nix::Installable::build2(nix::ref<nix::Store>, nix::ref<nix::Store>, nix::Realise, std::vector<nix::ref<nix::Installable>, std::allocator<nix::ref<nix::Installable>>> const&, nix::BuildMode) /home/jade/lix/lix2/build/src/libcmd/installables.cc:637:36
Change-Id: Id0e651e480bebf6356733b01bc639e9bb59c7bd0
This was generating an out-of-range verbosity value. We should just
process it as an int and then convert to verbosity with a clamping
function, which trivially avoids any domain type violations.
Change-Id: I0ed20da8e1496a1225ff3008b76827d99265d404
We got UBSan working on Lix, so we of course immediately found a bug and
some definitely nonsense behaviour.
Accessing `pureEval` or `restrictEval` from a default setting value is
nonsense, since they would never be actually set by the time that value
is set so they are not going to do anything. The configuration is not
applied in an initializer (and even if it were, it's not going to be in
the right order).
After looking into *that*, we hunted down what actually was applying
these, since clearly this code did not do anything. The EvalState
constructor should have a "search path added and removed here :)" sign
on it, because that's where it is done. We added an explicit
initialization of the optional in there because it was otherwise unclear
why pureEval also has the search path to allowed paths setup code run.
We then realized that the `pureEval` documentation was *also* bogus, and
we rewrote it. In so doing, we realized that we forgot to file a bug to
make `builtins.storePath` work in pure eval mode, so we filed one of
those: lix-project/lix#402
Yaks have been thoroughly shorn.
UBSan report:
../src/libexpr/eval-settings.cc:66:10: runtime error: member call on address 0x752fa9a13060 which does not point to an object of type 'nix::BaseSetting<b
ool>'
0x752fa9a13060: note: object has invalid vptr
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
^~~~~~~~~~~~~~~~~~~~~~~
invalid vptr
0 0x752fa95106a6 in nix::EvalSettings::getDefaultNixPath[abi:cxx11]() /home/jade/lix/lix2/build/src/libexpr/eval-settings.cc:66:10
1 0x752fa950e420 in nix::EvalSettings::EvalSettings() /home/jade/lix/lix2/build/src/libexpr/eval-settings.hh:36:15
2 0x752fa9469f1f in __cxx_global_var_init.50 /home/jade/lix/lix2/build/src/libexpr/eval-settings.cc:98:14
3 0x752fa9469f1f in _GLOBAL__sub_I_eval_settings.cc /home/jade/lix/lix2/build/src/libexpr/eval-settings.cc
4 0x752fabbd308d in call_init (/nix/store/k7zgvzp2r31zkg9xqgjim7mbknryv6bs-glibc-2.39-52/lib/ld-linux-x86-64.so.2+0x508d) (BuildId: a5b8228edc9f16078ac3c894af964eeb990ecb4c)
5 0x752fabbd317b in _dl_init (/nix/store/k7zgvzp2r31zkg9xqgjim7mbknryv6bs-glibc-2.39-52/lib/ld-linux-x86-64.so.2+0x517b) (BuildId: a5b8228edc9f16078ac3c894af964eeb990ecb4c)
6 0x752fabbe9c2f in _dl_start_user (/nix/store/k7zgvzp2r31zkg9xqgjim7mbknryv6bs-glibc-2.39-52/lib/ld-linux-x86-64.so.2+0x1bc2f) (BuildId: a5b8228edc9f16078ac3c894af964eeb990ecb4c)
Change-Id: I5d8ffb7bfbe24b6584020ac74eed93d9f2e6d111
even the transfer function is not all that necessary since there aren't
that many users, but we'll keep it for now. we could've kept both names
but we also kind of want to use `download` for something else very soon
Change-Id: I005e403ee59de433e139e37aa2045c26a523ccbf
The lock usage was obviously wrong so it was entirely serialized. This
has the predicted speedups, the only question is whether it is sound
because it's exposing a bunch of new code to actual concurrency.
I did audit all the stores' queryPathInfoUncached implementations and
they all look *intended* to be thread safe, but whether that is actually
sound or not: lol lmao. I am highly confident in the s3 one because it
is calling s3 sdk methods that are thread safe and has no actual state.
Others are using Pool and look to be *supposed* to be thread safe, but
unsure if they actually are.
Change-Id: I0369152a510e878b5ac56c9ac956a98d48cd5fef
Found by looking for interesting asan reports from the test suite.
What happened here is that name got overwritten, but it was what
actually held the backing memory for the thing it got overwritten by,
which was a by-reference value coming out of std::regex.
Due to absurd reasons I cannot seem to use a string_view iterator here,
so I just copy the string with a longer lifetime instead. idk lol
==3796364==ERROR: AddressSanitizer: heap-use-after-free on address 0x503000014c61 at pc 0x74843523bf1d bp 0x7ffc68351330 sp 0x7ffc68350af0
READ of size 3 at 0x503000014c61 thread T0
0 0x74843523bf1c in __asan_memcpy (/nix/store/mzhqknx2mc94jdz4n320hn1lml86398y-clang-wrapper-17.0.6/resource-root/lib/linux/libclang_rt.asan-x86_64.so+0x159f1c)
1 0x6403cf6cbff4 in std::char_traits<char>::copy(char*, char const*, unsigned long) /nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/include/c++/13.2.0/bits/char_traits.h:445:33
<...>
7 0x6403cf6cbff4 in std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>::str() const /nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/include/c++/13.2.0/bits/regex.h:966:6
8 0x6403cf6cbff4 in std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>::operator std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>() const /nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/include/c++/13.2.0/bits/regex.h:955:16
9 0x6403cf6cbff4 in nix::getClosureInfo[abi:cxx11](nix::ref<nix::Store>, nix::StorePath const&) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:37:26
10 0x6403cf6cd70c in nix::printClosureDiff(nix::ref<nix::Store>, nix::StorePath const&, nix::StorePath const&, std::basic_string_view<char, std::char_traits<char>>) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:54:25
11 0x6403cf873331 in CmdProfileDiffClosures::run(nix::ref<nix::Store>) /home/jade/lix/lix2/build/src/nix/profile.cc:479:17
<...>
0x503000014c61 is located 17 bytes inside of 21-byte region [0x503000014c50,0x503000014c65)
freed by thread T0 here:
0 0x748435250470 in operator delete(void*) (/nix/store/mzhqknx2mc94jdz4n320hn1lml86398y-clang-wrapper-17.0.6/resource-root/lib/linux/libclang_rt.asan-x86_64.so+0x16e470)
<...>
6 0x6403cf6cbda2 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>::~basic_string() /nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/include/c++/13.2.0/bits/basic_string.h:792:9
7 0x6403cf6cbda2 in nix::getClosureInfo[abi:cxx11](nix::ref<nix::Store>, nix::StorePath const&) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:36:13
8 0x6403cf6cd70c in nix::printClosureDiff(nix::ref<nix::Store>, nix::StorePath const&, nix::StorePath const&, std::basic_string_view<char, std::char_traits<char>>) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:54:25
<...>
previously allocated by thread T0 here:
0 0x74843524fa38 in operator new(unsigned long) (/nix/store/mzhqknx2mc94jdz4n320hn1lml86398y-clang-wrapper-17.0.6/resource-root/lib/linux/libclang_rt.asan-x86_64.so+0x16da38)
<...>
9 0x6403cf6cb68c in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>::basic_string<std::basic_string_view<char, std::char_traits<char>>, void>(std::basic_string_view<char, std::char_traits<char>> const&, std::allocator<char> const&) /nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/include/c++/13.2.0/bits/basic_string.h:784:4
10 0x6403cf6cb68c in nix::getClosureInfo[abi:cxx11](nix::ref<nix::Store>, nix::StorePath const&) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:33:21
11 0x6403cf6cd70c in nix::printClosureDiff(nix::ref<nix::Store>, nix::StorePath const&, nix::StorePath const&, std::basic_string_view<char, std::char_traits<char>>) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:54:25
12 0x6403cf873331 in CmdProfileDiffClosures::run(nix::ref<nix::Store>) /home/jade/lix/lix2/build/src/nix/profile.cc:479:17
<...>
Change-Id: I9c408cf2a3d3155f9f7b2ad4848ee6c741331db0
There was a previously-unused move constructor that just called abort,
which makes no sense since it ought to just be `= delete` if you don't
want one (commit history says it was Eelco doing an optimistic
performance optimisation in 2016, so it probably would not pass review
today).
However, a Lock has some great reasons to be moved! You might need to
unlock it early, for instance, or give it to someone else. So we change
the move constructor to instead hollow out the moved-from object and
make it unusable.
Change-Id: Iff2a4c2f7ebd0a558c4866d4dfe526bc8558bed7
Unfetched submodules are included as empty directories in archives, so they end
up as such in the store when fetched in clean mode. Make sure the same happens
in dirty mode too. Fortunately, they are already correctly represented in the
ls-files output, so we just need to make sure to include the empty directory in
our filter.
Fixes: https://github.com/NixOS/nix/issues/6247
Change-Id: I60d06ff360cfa305d081b920838c893c06da801c
* changes:
libstore client: remove remaining dead code
libstore: refuse to serialise ancient protocols
libstore client: remove support for <2.3 clients
libstore daemon: remove very old protocol support (<2.3)
Delete old ValidPathInfo test, fix UnkeyedValidPathInfo
Set up minimum protocol version
with the prepatory work done this mostly means turning plain pointers
into unique_ptrs, with all the associated churn that necessitates. we
might want to change some of these to box_ptrs at some point as well,
but that would be a semantic change that isn't fully appropriate yet.
Change-Id: I0c238c118617420650432f4ed45569baa3e3f413
almost all places where Exprs are passed as pointers expect the pointers
to be non-null. pass them as references to encode this constraint in the
type system as well (and also communicate that Exprs must not be freed).
Change-Id: Ia98f166fec3c23151f906e13acb4a0954a5980a2
now that destructors are hooked up we want to give the C skeleton every
real chance to actually run them. since bison does not call destructors
on values that have been passed to semantic actions even when an action
causes an abort we will also have to delete some things manually still.
Change-Id: Ia22bdaa9e969b74e17a6c496e35e6c2d86b7d750
this doesn't help much yet since the state objects themselves also leak
all memory they are given, but it is a first necessary step to properly
managing parser memory. notably we have to clear $$ when returning from
the parser since even the start symbol is subject to automatic deletion
by the bison-generated parser before returning control to the call site
Change-Id: I80245b0c747308e80923e7f18ce4e1a4898f93b0
This uses a minor hack in which we check the rl_line_buffer global
variable to workaround editline not including the colon in its
completion callback.
Fixes#361
Change-Id: Id159d209c537443ef5e37a975982e8e12ce1f486
* changes:
Change error messages about 'invalid paths' to 'path does not exist'.
Add a clearer error message for InvalidPathError during evaluation
Harmonise the Store::queryPathInfoUncached interface
Qyriad
Ilya K
jade
eldritch horrors
alois31
Artemis Tosini
julia