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1824 Commits

Author SHA1 Message Date
hyd-dev
ce7040075a
Disallow #[no_mangle]/#[export_name = ...] functions that have the same symbol name as built-in shims 2021-06-11 15:18:47 +08:00
hyd-dev
6aef1d687d
Remove erroneous exit() and ExitProcess() in tests/run-pass/function_calls/exported_symbol.rs 2021-06-11 13:32:00 +08:00
hyd-dev
4f3718ef85
Fix the wrong EmulateByNameResult::NotSupported in syscall shim 2021-06-11 11:44:57 +08:00
bors
e5c3af6f51 Auto merge of #1818 - landaire:feature/panic-on-unsupported-syscalls, r=RalfJung 
Add support for panicking in the emulated application when unsupported functionality is encountered

This PR fixes #1807 and allows an optional flag to be specified to panic when an unsupported syscall is encountered. In essence, instead of bubbling up an error in the context of the Miri application Miri will panic within the context of the *emulated* application. This feature is desired to allow CI pipelines to determine if a Miri failure is unsupported functionality or actual UB. Please read [this comment](https://github.com/rust-lang/miri/issues/1807#issuecomment-845425076) for the rationale behind this change.

Note: this change does not cover all cases where unsupported functionality errors may be raised. If you search the repo for `throw_unsup_format!` there are many cases that I think are less likely to occur and may still be problematic for some folks.

TODO:

- [x] README documentation on this new flag
- [x] Add tests
 2021-06-09 18:09:06 +00:00
Ralf Jung
a38f02c44c isolated operations return EPERM; tweak isolation hint 2021-06-09 18:24:59 +02:00
Smit Soni
892f706ce5 Add a support to execute isolated op without halting 
In user interface, added a new flag `-Zmiri-isolation-error` which
takes one of the four values -- hide, warn, warn-nobacktrace, and
abort. This option can be used to configure Miri to either abort or
return an error code upon executing isolated op. If not aborted, Miri
prints a warning, whose verbosity can be configured using this flag.

In implementation, added a new enum `IsolatedOp` to capture all the
settings related to ops requiring communication with the
host. Old `communicate` flag in both miri configs and machine
stats is replaced with a new helper function `communicate()` which
checks `isolated_op` internally.

Added a new helper function `reject_in_isolation` which can be called
by shims to reject ops according to the reject_with settings. Use miri
specific diagnostics function `report_msg` to print backtrace in the
warning. Update it to take an enum value instead of a bool, indicating
the level of diagnostics.

Updated shims related to current dir to use the new APIs. Added a new
test for current dir ops in isolation without halting machine.
 2021-06-09 05:50:52 -07:00
hyd-dev
23c0495ebd
Update Box<Any> to Box<dyn Any> in catch_panic.stderr 2021-06-08 22:18:27 +08:00
Lander Brandt
ae237098f8 Add support for panicking in the emulated application when unsupported syscalls are encountered 2021-06-07 15:21:53 -07:00
Ralf Jung
0ece55d748
expand comment 2021-06-06 10:33:46 +02:00
hyd-dev
d7aff96053
Remove 2 tests 2021-06-06 11:22:25 +08:00
hyd-dev
879000b133
Detect std by checking if the crate defines #[lang = "start"] rather than string comparison 2021-06-06 11:12:05 +08:00
bors
28717a0e90 Auto merge of #1776 - hyd-dev:1170, r=RalfJung 
Implement calls to exported symbols (#1170)

Closes #1170.
 2021-06-03 15:59:56 +00:00
Pointerbender
386863ac53 added a strings.rs regression test case for potential future UB 2021-06-03 17:25:23 +02:00
hyd-dev
ba3b11fa42
Remove some tests 2021-06-03 14:16:58 +08:00
hyd-dev
e4e6c25f67
Remove FIXME in tests/compile-fail/panic/bad_unwind.rs 2021-06-03 13:39:33 +08:00
Pointerbender
c6dbe5cdca use references so that potential aliasing bugs are triggered during regression test 2021-06-02 15:36:18 +02:00
Pointerbender
b8aba11de3 regression tests for pointer invalidation in core library slice methods 2021-06-02 15:36:18 +02:00
Aaron Hill
73700bc01c
Rustup for const_err changes 2021-05-31 10:50:25 -05:00
hyd-dev
a952787163
Improve tests 2021-05-31 11:57:16 +08:00
hyd-dev
45832d4031
Remove duplicated "foreign function" 2021-05-31 11:57:15 +08:00
hyd-dev
41f33a64f8
Implement calls to exported symbols 2021-05-31 11:15:29 +08:00
hyd-dev
71f4140550
Add -Zmiri-disable-abi-check 2021-05-31 11:14:23 +08:00
hyd-dev
9b2d42587f
unwind is no longer Option<BasicBlock> 2021-05-28 22:08:51 +08:00
Ralf Jung
393ce98b32 fix a Stacked Borrows test whose output changed 2021-05-23 18:04:13 +02:00
Ralf Jung
dd404cc92e avoid importing C functions in alloc_write_race test 2021-05-19 15:27:58 +02:00
Ralf Jung
801a1744cd update for Memory API changes 2021-05-19 15:27:58 +02:00
Ralf Jung
7af7e9e4f3 rustup 2021-05-11 15:32:05 +02:00
hyd-dev
1ab9fd50a4
Update pointer error messages 2021-05-08 15:33:27 +08:00
Ralf Jung
a2b227f95a stacked borrows: ensure array-to-elem casts behave correctly 2021-05-07 09:24:33 +02:00
hyd-dev
47c5b6eb08
encountered a NULL reference -> encountered a null reference 2021-05-04 15:53:19 +08:00
Smitty
e0e59f6020 Simplify finiteness checking 2021-05-03 10:08:42 -04:00
Smitty
68d29554a8 test for infinite value in f*_fast 2021-05-03 09:56:51 -04:00
Smitty
e591b83185 UB if f*_fast intrinsic called with nonfinite value 2021-05-02 12:25:00 -04:00
hyd-dev
2da6bedaec
Use harness = false instead of #![feature(custom_test_frameworks)] 2021-05-01 22:28:33 +08:00
hyd-dev
b30c5fef5b
Rustup for rust-lang/rust#84401 2021-04-30 19:35:59 +08:00
Ralf Jung
4c741e5fb2 rustup 2021-04-25 16:57:48 +02:00
Ralf Jung
2ae699c56d make TLS-drop-test more cross-platform 2021-04-20 09:59:26 +02:00
Ralf Jung
d512ba2ae2 test thread_local_const_init 2021-04-18 11:01:08 +02:00
Charles Lew
85f7dd6131 Remove main_fn.rs test. 2021-04-17 00:04:09 +08:00
Aliénore Bouttefeux
648638976a allow deref of null ptr in test 2021-04-15 10:00:39 +02:00
Ralf Jung
0674d439b6 test calling pthread_cond_timedwait with an already elapsed timeout 2021-04-11 14:21:42 +02:00
Ralf Jung
21968aa53b add test to detect dropped temporary 2021-04-10 12:09:10 +02:00
hyd-dev
3dff1d4fcd
Don't use MIRI_DEFAULT_ARGS to compile host crates 2021-04-09 00:57:59 +08:00
Ralf Jung
31bd77c7d8 bump miri dependencies 2021-04-04 11:48:20 +02:00
Ralf Jung
de0f3f930b rustup 2021-03-28 01:36:41 +01:00
Ralf Jung
585e51aabd disable MIR opts for ZST-related tests 2021-03-25 12:44:30 +01:00
Ralf Jung
b4b048cc86 rustup; better comment in storage_dead_dangling test 2021-03-22 12:35:30 +01:00
hyd-dev
633ac2a222
Remove meaningless tests 2021-03-17 21:55:45 +08:00
hyd-dev
bbc348539b
Unsupported foreign non-"C"/"system"-ABI function calls are not UB 2021-03-17 21:20:04 +08:00
bors
0788188c7b Auto merge of #1743 - RalfJung:callee-checks, r=RalfJung 
Check callee ABI when Miri calls closures

Fixes https://github.com/rust-lang/miri/issues/1741
 2021-03-14 18:05:18 +00:00
Ralf Jung
15465a5881 don't ICE when we unwind despite panic=abort 2021-03-14 17:10:45 +01:00
Ralf Jung
c9ff02f549 ensure we catch incorrectly unwinding calls 2021-03-14 17:03:20 +01:00
Ralf Jung
d1dec9cd23 don't ICE when callee has the wrong number of arguments 2021-03-14 15:38:22 +01:00
Ralf Jung
893843fd45 when Miri calls a function ptr, make sure it has the right ABI 2021-03-14 15:30:37 +01:00
Ralf Jung
98f28ac9c8 rustup 2021-03-11 09:07:05 +01:00
Ralf Jung
7a7f7b1a7a rustup 2021-03-10 15:21:12 +01:00
Mara Bos
90e218ad90 Fix panic test. 2021-03-08 17:06:50 +01:00
Mara Bos
5bd5ea21ea Remove unwrap_none as it won't be stabilized. 
This upgrades to the latest rustc to be able to use try_insert()
instead.
 2021-03-08 16:59:20 +01:00
Smitty
26e97ec54f Support breakpoint intrinsic 2021-03-04 07:48:28 -05:00
bors
2670839e1a Auto merge of #1721 - henryboisdequin:add-atomic-min-and-max, r=oli-obk 
Add atomic min and max

Closes #1718
Previous attempt: #1653

TODO:

- [x] Merge `atomic_op` and `atomic_min_max` functions
- [x] Fix CI

**Note:** this PR also removes arbitrary trailing whitespace and generally formats the affected files
 2021-03-02 14:52:32 +00:00
Henry Boisdequin
f8440d6c99 Add in atomic_{min,max}_x intrinsics 
Co-authored-by: Greg Bowyer <gbowyer@fastmail.co.uk>
 2021-03-02 20:17:05 +05:30
Ralf Jung
97e45e0699 make optimized-test-run a bit more like what cargo does 2021-03-02 11:04:35 +01:00
Ralf Jung
7acf80d2bb rustup; fix tests for new MIR optimization 2021-03-02 10:57:08 +01:00
Ralf Jung
48f7c8e2e6 fix reborrowing of tagged ZST references 2021-02-27 20:10:50 +01:00
Ralf Jung
c003fd0157 rustup 2021-02-23 09:23:49 +01:00
Ralf Jung
a5a751e795 rustup 2021-02-17 09:37:21 +01:00
Ralf Jung
4c867feeb6 add test by @eddyb 2021-02-16 10:18:31 +01:00
Ralf Jung
0b3dba8e70 rustup and temporarily disable broken tests 2021-02-16 09:55:33 +01:00
Caleb Zulawski
dd81fb3f10 Remove non-power-of-two SIMD vectors 2021-02-08 00:17:24 -05:00
Mara Bos
7fc24442bd Update rust version. 
- Allow new non_fmt_panic lint in test.
- Remove stabilized feature(wake_trait).
 2021-02-05 10:08:05 +01:00
Ralf Jung
d309804395 rustup 2021-02-03 23:37:40 +01:00
Ralf Jung
6f5a91f70a rustup 2021-01-31 13:12:25 +01:00
Ralf Jung
9d777d8410 add test for caller ABI check 2021-01-29 21:16:17 +01:00
bors
a0485c5a90 Auto merge of #1686 - thomcc:cmpxchg_weak, r=oli-obk 
Add random failures to compare_exchange_weak

In practice this is pretty useful for detecting bugs.

This fails more frequently than realistic (~~50%~~ (now 80%, controlled by a flag) of the time). I couldn't find any existing code that tries to model this (tsan, cdschecker, etc all seem to have TODOs there). Relacy models it with a 25% or 50% failure chance depending on some settings.

CC `@JCTyblaidd` who wrote the code this modifies initially, and seems interested in this subject.
 2021-01-28 09:52:04 +00:00
Ralf Jung
e308eeb3f1 rustup; more slack for timing tests 2021-01-27 10:44:08 +01:00
Ralf Jung
0e56bff5f9 erroneous_const span now changes with inlining 2021-01-26 11:48:11 +01:00
Ralf Jung
d38e861f1e rustup; allow some lints 2021-01-26 11:43:39 +01:00
Thom Chiovoloni
d4b592ed17 Fail 80% of the time on weak cmpxchg, not 50% 2021-01-26 00:13:54 -08:00
Thom Chiovoloni
efd2d55e00 review nits 2021-01-26 00:13:54 -08:00
Thom Chiovoloni
b6eccc6482 Test that _weak atomics sometimes fail 2021-01-26 00:13:54 -08:00
Thom Chiovoloni
c678bd722e Add random failures to compare_exchange_weak 2021-01-26 00:13:54 -08:00
Ralf Jung
3990debf82 rustup; test swap of element with itself 2021-01-22 09:22:53 +01:00
Ralf Jung
7125b86c33 remove some unnecessary feature gates 2021-01-16 18:27:10 +01:00
Ralf Jung
4a035103dc rustup; make tests pass again 2021-01-15 16:41:14 +01:00
Ralf Jung
82c6c77b9a test Weak into_raw/from_raw on dangling ptrs 2020-12-31 13:11:34 +01:00
Ralf Jung
7e198147df panicing now works with -Zmiri-track-raw-pointers 2020-12-31 00:17:08 +01:00
Ralf Jung
a81ebd8fe3 rustup; add an interesting alias test case 2020-12-29 19:27:45 +01:00
Ralf Jung
3d151c8b62 leak checker: also test AtomicPtr stored via 'swap' 2020-12-21 11:36:39 +01:00
JCTyBlaidd
aaf8ca4c77 Fix review changes 2020-12-13 11:04:58 +00:00
JCTyBlaidd
4e74f9f013 Change to disable mir-opt in compile-flags 2020-12-13 11:04:58 +00:00
JCTyBlaidd
3df67141e6 Disable tests in windows 2020-12-13 11:04:58 +00:00
JCTyBlaidd
a30105df0b Defeat the mir-opt=3 optimizer. 2020-12-13 11:04:58 +00:00
JCTyBlaidd
8676c60f87 Update note 2020-12-13 11:04:58 +00:00
JCTyBlaidd
296ba8b1c8 Fix bug with reporting wrong thread for races with reads & add thread ids to data-race tests 2020-12-13 11:04:58 +00:00
JCTyBlaidd
fbe7fbb890 Add concurrent caller location test 2020-12-13 11:04:58 +00:00
JCTyblaidd
c4ccd0b6a1 Fix nits 
Co-authored-by: bjorn3 <bjorn3@users.noreply.github.com>
 2020-12-13 11:04:58 +00:00
JCTyBlaidd
f4bcef1113 Increase sleep times for the scheduler 2020-12-13 11:04:58 +00:00
JCTyBlaidd
c45b1b16be More tests, fix issue 1643 and detect races with allocation. 2020-12-13 11:04:58 +00:00
Ralf Jung
27a518e166 enable track-raw-ptr tests on Windows 2020-12-11 11:28:33 +01:00
Ralf Jung
7bbd6bca77 rustup 2020-12-10 19:53:45 +01:00
Ralf Jung
2f0d7d38b4 rustup; test AtomicPtr leak checker 2020-12-10 00:09:52 +01:00
bors
a2fa80d277 Auto merge of #1641 - JCTyblaidd:update_release_sequences, r=RalfJung 
Weaken release sequences to match the C++20 memory model

See [Weaken Release Sequences](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0982r1.html), since the exception for relaxed writes on the same thread as a release write not blocking release sequences was removed in the C++20 memory model compared to the C11 memory model the paper was based on. The implementation can be updated and simplified to match this.  [Rust is currently specified to use the C++20 memory model](https://doc.rust-lang.org/std/sync/atomic/index.html).
 2020-12-06 19:12:16 +00:00
JCTyBlaidd
a6f377e48e Fix typo 2020-12-06 17:11:24 +00:00
JCTyBlaidd
4cf614ef33 Update release sequence handling to C++20 semantics. 2020-12-06 16:58:32 +00:00
Mara Bos
de5b26d7f0 Use new std::alloc::Allocator interface. 
This was changed in core.
 2020-12-05 00:13:33 +01:00
bors
d473242ecd Auto merge of #1617 - JCTyblaidd:data_race_detector, r=RalfJung 
Add simple data-race detector

Partially fixes data-race detection, see #1372, based on Dynamic Race Detection for C++11

- This does not explore weak memory behaviour, only exploring one sequentially consistent ordering.
- Data-race detection is only enabled after the first thread is created, so should have minimal overhead for non-concurrent execution.
- ~~Does not attempt to re-use thread id's so creating and joining threads lots of time in an execution will result in the vector clocks growing in size and slowing down program execution~~ It does now
 2020-11-29 18:44:28 +00:00
JCTyBlaidd
55fc552d99 Apply review changes, incrementing the clocks twice is an unnecessary hold-over from earlier versions so fixed. 2020-11-27 19:26:06 +00:00
JCTyBlaidd
3268f56a97 Fix review changes 2020-11-22 17:28:12 +00:00
Ralf Jung
7a2c2f8dde rustup; test sorting for provenance-correctness 2020-11-22 18:08:57 +01:00
est31
4de113acba Normalize column numbers 2020-11-19 09:21:11 +01:00
JCTyBlaidd
a3b7839bbd Add comment regarding seq-cst ordering & add test for disabling the data-race detector. 2020-11-15 20:12:58 +00:00
JCTyBlaidd
69fb6413dd Tidy up comments and function layout, should fix most of the review notes. 2020-11-15 18:30:26 +00:00
Ralf Jung
915d091973 rustup; less strict timing tests 2020-11-12 16:50:24 +01:00
Ralf Jung
df0de77fd1 test btreemap with raw ptr tracking 2020-11-10 16:51:55 +01:00
Ralf Jung
db718d72ae remove some unnecessary feature flags 2020-11-10 16:51:07 +01:00
Ralf Jung
737ecef376 rustup and update test 2020-11-10 16:47:56 +01:00
JCTyBlaidd
2a40d9b7a0 More aggressive vector index re-use, and added some tests. 2020-11-06 17:29:54 +00:00
Ralf Jung
f31f00d5af rustup 2020-11-05 17:09:44 +01:00
JCTyBlaidd
95c99b2044 Detect races between atomic and non-atomic accesses of a variable, 
previously only data races between two non-atomic accesses were
 detected.
 2020-11-04 21:35:48 +00:00
JCTyBlaidd
fe2e857cc3 Add newlines at end of file + use replace. 
add dangling thread variant of one of the benchmarks
 2020-11-02 13:08:09 +00:00
JCTyBlaidd
2e75de5ac9 Mark all new tests as disabled on windows 2020-11-02 12:40:12 +00:00
JCTyBlaidd
ed32b260f9 Add tests, and fix bug in atomic RMW relaxed stores 2020-11-02 02:57:06 +00:00
Ralf Jung
00bc944eea test Rc with raw pointer tracking 2020-10-31 16:24:34 +01:00
Ralf Jung
f936bc6b92 fix writing to read-only raw pointer in thread-local test 2020-10-31 16:24:34 +01:00
Ralf Jung
80a0a12b07 Stacked Borrows: test raw-ref-to-field with raw ptr tracking 2020-10-31 16:24:34 +01:00
Ralf Jung
e7246be4f0 backtrace tests: support more ways of checking out Rust locally 2020-10-31 13:47:42 +01:00
Ralf Jung
2a4faf638b increase timeout to avoid spurious test failures 2020-10-30 18:59:58 +01:00
Ralf Jung
1ad827c511 rustup 2020-10-29 20:57:38 +01:00
bors
83f7657ed0 Auto merge of #1603 - RalfJung:track-raw, r=oli-obk 
add an option to track raw pointer tags in Stacked Borrows

Also make error messages more informative by printing the affected memory location
 2020-10-28 13:19:25 +00:00
Ralf Jung
bf54607ba0 test raw pointer tracking; we cannot track raw pointers on Windows 2020-10-28 13:54:50 +01:00
Ralf Jung
1044099c19 disable debug assertions in the standard library 2020-10-28 12:43:11 +01:00
Ralf Jung
19e78a65d9 run some tests with raw pointer tracking 2020-10-28 12:35:05 +01:00
Ralf Jung
ecf330f39e test Box::into_raw aliasing 2020-10-27 17:26:36 +01:00
Ralf Jung
ddcc4f241e rustup; make panic output less dependent on stdlib internals 2020-10-25 10:00:50 +01:00
Ralf Jung
80c4b5d674 fix './miri test' 2020-10-22 10:36:05 +02:00
Ralf Jung
ad07b2bd44 rustup; increase slack for timing tests 2020-10-22 09:47:02 +02:00
Aaron Hill
05bb560de2
Enable backtrace feature in the generated Xargo.toml 
This allows the normal std panic hook to print a backtrace if
`RUST_BACKTRACE=1` and `-Z miri-disable-isolation` are set
 2020-10-20 18:27:55 -04:00
bors
d5380be209 Auto merge of #1586 - RalfJung:available-concurrency, r=RalfJung 
test new available_concurrency function

Cc https://github.com/rust-lang/rust/pull/74480
 2020-10-18 09:22:59 +00:00
Ralf Jung
5df6d8bec6 test new available_concurrency function 2020-10-18 11:22:09 +02:00
Aaron Hill
8b10dbfeaa
Test std::backtrace::Backtrace 
Fixes #1578
 2020-10-17 19:45:26 -04:00
Ralf Jung
67cf6c2176 rustup; the bad compile times for the float test are fixed 2020-10-18 00:49:52 +02:00
Aaron Hill
be51e6bd07
Add an fn_ptr field to MiriFrame 
The `backtrace-rs` crate can use this to implement
`Frame::symbol_address`, which is used to skip frames
above the call to `Backtrace::capture` on the stack.

The function pointer will not be useable for comparison purposes if the
function is generic, as CTFE creates a new function pointer for each
cast of a (monomorphized) generic function. However, this already
affects code running under Miri, and isn't a problem for `backtrace-rs`
(which only casts a non-generic function).

I've added logic to allow `MiriFrame` to have either 4 or 5 fields - if
a 5th field is present, we write the function pointer to it.
 2020-10-10 13:07:57 -04:00
Ralf Jung
3e655665b7 test VecDeque::iter_mut aliasing 2020-10-07 09:00:55 +02:00
Aaron Hill
8e8828259a
Use macro callsite spans in backtrace 
This mirrors what we do in the debuginfo used for runtime backtraces.
 2020-10-05 17:29:55 -04:00
bors
60c1075820 Auto merge of #1564 - Aaron1011:readlink, r=RalfJung 
Implement `readlink`

Due to the truncating behavior of `readlink`, I was not able to
directly use any of the existing C-cstring helper functions.
 2020-10-04 21:07:55 +00:00
Aaron Hill
4eea02e725
Normalize MIRI_TEMP before using it 2020-10-04 16:26:09 -04:00
Ralf Jung
02257870a6 rustup; test NaN conversion issue 2020-10-04 18:56:51 +02:00
Aaron Hill
bbba87ce54
Swap order of assertions for easier debugging 2020-10-04 12:06:51 -04:00
Aaron Hill
5fc5490bc8
Add trailing punctuation 
Co-authored-by: Ralf Jung <post@ralfj.de>
 2020-10-04 12:06:51 -04:00
Aaron Hill
0e59b6f673
Merge fs and fs_libc tests 2020-10-04 12:06:51 -04:00
Aaron Hill
78bc89b4fc
Implement readlink 
Due to the truncating behavior of `readlink`, I was not able to
directly use any of the existing C-cstring helper functions.
 2020-10-04 12:06:51 -04:00
Ralf Jung
a4cbbddc8e merge parking test into general synchronization test 2020-10-03 15:27:23 +02:00
Ralf Jung
b350c80a31 add backtics back in isolation error message 2020-10-03 15:25:30 +02:00
Mara Bos
dc36988f38 Add test for futex syscall. 2020-10-03 13:34:49 +02:00
Mara Bos
5880e7d809 Update expected error messages in tests. 2020-10-03 12:00:29 +02:00
Mara Bos
81138825b3 Add park/park_timeout/unpark test. 2020-10-02 23:35:00 +02:00
Ralf Jung
17e16aad62 normalize backtrace stderr even more 2020-09-30 10:02:53 +02:00
Aaron Hill
7fba3c2cf2
Normalize out generic arguments in backtrace-api stderr 2020-09-28 13:55:23 -04:00
Aaron Hill
5571bcfc4f
Require #[repr(C)] on MiriFrame 2020-09-28 13:44:46 -04:00
Aaron Hill
dba7f13549
Apply #[inline(never)] to functions that we want in the backtrace 2020-09-28 13:44:46 -04:00
Aaron Hill
e1bce19ca9
Make some error messages lowercase 2020-09-28 13:44:45 -04:00
Aaron Hill
b89f6561e5
Move things around 2020-09-28 13:44:45 -04:00
Aaron Hill
9fc384fcf9
Print non-std frames to stdout in backtrace-api test 2020-09-28 13:44:45 -04:00
Aaron Hill
ef43c5a614
Use a 'flags' parameter instead of 'version' 2020-09-28 13:44:45 -04:00
Aaron Hill
ae18659d52
Normalize line and column numbers from the sysroot 2020-09-28 13:44:45 -04:00
Aaron Hill
22f1eb01ee
Add API for capturing backtrace 
This PR adds two new Miri-defined extern functions:
`miri_get_backtrace` and `miri_resolve_frame`, which are documented in
the README. Together, they allow obtaining a backtrace for the currently
executing program.

I've added a test showing how these APIs are used. I've also prepared a
companion PR `backtrace-rs`, which will allow
`backtrace::Backtrace::new()` to work automatically under Miri.

Once these two PRs are merged, we will be able to print backtraces from
the normal Rust panic hook (since libstd is now using backtrace-rs).

A few notes:
* Resolving the backtrace frames is *very* slow - you can actually see
  each line being printed out one at a time. Some local testing showed
  that this is not (primrary) caused by resolving a `Span` - it seems
  to be just Miri being slow.
* For the first time, we now interact directly with a user-defined
  struct (instead of just executing the user-provided MIR that
  manipulates the struct). To allow for future changes, I've added
  a 'version' parameter (currently required to be 0). This should allow
  us to change the `MiriFrame` struct should the need ever arise.
* I used the approach suggested by @oli-obk - a returned backtrace
  pointer consists of a base function allocation, with the 'offset'
  used to encode the `Span.lo`. This allows losslessly reconstructing
  the location information in `miri_resolve_frame`.
* There are a few quirks on the `backtrace-rs` side:
  * `backtrace-rs` calls `getcwd()` by default to try to simplify
    the filename. This results in an isolation error by default,
    which could be annoying when printing a backtrace from libstd.
  * `backtrace-rs` tries to remove 'internal' frames (everything between
     the call to `Backtrace::new()` and the internal API call made by
     backtrace-rs) by comparing the returned frame pointer value to
     a Rust function pointer. This doesn't work due to the way we
     construct the frame pointers passed to the caller. We could
     attempt to support this kind of comparison, or just add a
    `#[cfg(miri)]` and ignore the frames ourselves.
 2020-09-28 13:44:45 -04:00
Ralf Jung
67c5067a2f rustup; fix tests 2020-09-24 09:19:03 +02:00
Ralf Jung
4b5e78052a rustup; support panic=abort on Windows 2020-09-20 15:55:36 +02:00
Ralf Jung
08e076c658 account for mir-opts masking more errors 2020-09-20 12:18:02 +02:00
Ralf Jung
83a339e5a9 rustup; make sure the iterator moves even with smarter optimizations 2020-09-20 10:26:22 +02:00
Ralf Jung
32cdb7131b support panic=abort 2020-09-18 13:10:18 +02:00
Ralf Jung
9a9988a4b0 update docs, and also use MIRIFLAGS for the test suite 2020-09-17 17:29:19 +02:00
Ralf Jung
bc548d3004 test BTreeMap::drain_filter for leaks 2020-09-11 12:20:08 +02:00
Ralf Jung
e61be0b8b8 expand collection tests 2020-09-10 08:44:27 +02:00
Samrat Man Singh
563fb8e43d Implement dup and close for stdin/stdout/stderr 
Support F_DUPFD on stdin/stdout/stderr

Enable `close`-ing stdin/stdout/stderr

For `dup`, check if FD is `File` first

If not, clone the appropriate standard IO stream

Merge POSIX `close` and `dup` tests into same module

Also, add assertion that `write` on a closed FD returns an error.

Add `dup` as FileDescriptor trait fn

Also:
- Fix `close` so it drops `self` instead of reference to it
- Remove FD clamping in insert_fd_with_min_fd, since FDs 0-2 can be
closed

Fix fs_libc tests

Make error message when closing stdin/out/err more specific

Return io::Result from `FileDescriptor::dup`

Change error message when closing stdin/out/err

Refactor `FileDescriptor::dup` impl for `FileHandle`

Remove empty line
 2020-09-09 23:26:33 +05:30
bors
604a674ea3 Auto merge of #1536 - divergentdave:nanosleep, r=RalfJung 
Nanosleep

This PR adds a shim for `libc::nanosleep`, (available under -Zmiri-disable-isolation only) which backs `thread::sleep` on Linux and macOS. I started off by extracting the `timespec` parsing from the `pthread_cond_timedwait` shim into a helper method, and adding checks for invalid values. The second commit adds the new shim and a small test. The shim blocks the current thread, and registers a timeout callback to unblock the thread again, using the same method as `pthread_cond_timedwait` does.
 2020-09-08 08:26:33 +00:00
David Cook
06aaea1d6b Update comment 2020-09-07 15:05:26 -05:00
David Cook
33e928c9ca Review comments 2020-09-07 10:54:39 -05:00
Ralf Jung
3fdbc0fd3f fix referenced issue 2020-09-07 13:10:31 +02:00
Ralf Jung
3ba1035d27 use standard black_box function 2020-09-07 11:29:47 +02:00
Ralf Jung
029c851d7c another optimization work-around 2020-09-07 11:23:09 +02:00
Ralf Jung
088af66f85
better optimization suppression 
Co-authored-by: bjorn3 <bjorn3@users.noreply.github.com>
 2020-09-07 11:16:16 +02:00
Ralf Jung
d9bc19a7b0 test opt-level 2 2020-09-07 10:43:49 +02:00
Ralf Jung
210f18d6c7 work around rustc optimizations becoming too smart 2020-09-07 10:24:38 +02:00
David Cook
417ac2939a Implement libc::nanosleep shim 2020-09-06 18:07:17 -05:00
David Cook
6d323e1032 Refactor timespec parsing, improve error handling 2020-09-06 18:07:14 -05:00
bors
c28a8eeb74 Auto merge of #1532 - divergentdave:thread-panic-payload, r=RalfJung 
Move panic payload state from Machine to Thread

This PR moves the panic payload storage from the `Machine` state to per-thread state. Prior to this change, if one thread panicked while another was still unwinding, Miri would fail with `thread 'rustc' panicked at 'the panic runtime should avoid double-panics', src/shims/panic.rs:51:9`. I ran into this issue while prototyping a round-robin scheduler, but it's also reachable with the current scheduler and contrived programs that use blocking API calls to cause thread switching during unwinding. I wrote a test case along those lines for this change.
 2020-09-03 10:09:34 +00:00
David Cook
7a2c6812b9 Per-thread errno storage 2020-09-02 20:57:20 -05:00
Ralf Jung
3466462306 rustup, fix test 2020-09-01 10:55:09 +02:00
David Cook
da2f268443 Review comments 2020-08-31 19:32:14 -05:00
David Cook
3ba7f46058 Move panic payload state from Machine to Thread 2020-08-29 21:38:37 -05:00
Ralf Jung
39e6baeb91 rustup 2020-08-27 09:27:58 +02:00
Ralf Jung
2f9de18f88 rustup; account for ptr_offset_from stabilization 2020-08-24 10:06:44 +02:00
Ralf Jung
df9b2127ce fix a test for big-endian targets 2020-08-22 18:07:43 +02:00
Ralf Jung
237bea2c17 avoid promotion in alignment test to get different alignment on each try 2020-08-20 10:14:13 +02:00
Ralf Jung
d5b15297ac forgot to add alignment test loop in one test 2020-08-18 10:19:29 +02:00
Ralf Jung
5b1bc4ba94 make another test more robust against random alignment 2020-08-17 18:22:46 +02:00
Ralf Jung
0913653e06 make sure we test panic of interpreter-impelemted align_offset 2020-08-16 18:31:48 +02:00
Ralf Jung
d4e5943259 use real align_offset unless we symbolic alignment check is enabled 2020-08-16 18:26:04 +02:00
Ralf Jung
cb985670c1 make alignment check integer-based by default, and add an option to make it symbolic 2020-08-16 17:08:38 +02:00
Ralf Jung
80929e17ae add test for unused ill-formed constant 
also use better span in TopFrameInfo
 2020-08-13 08:33:36 +02:00
Ralf Jung
da2260db44 make sure opening a file fails with isolation enabled 2020-08-10 10:10:08 +02:00
Ralf Jung
5657f08bea fs: move isolation handling to inside trait 2020-08-08 15:24:30 +02:00
bors
cf633d0e89 Auto merge of #1498 - RalfJung:rustup, r=RalfJung 
rustup

The allocator API changed *again*, adjust our test.
 2020-08-05 11:39:07 +00:00
Ralf Jung
422113a491 rustup 2020-08-05 13:38:15 +02:00
Samrat Man Singh
bdef57ea45 Flush to stdout from FileDescriptor::write for Stdout 
Also, remove unnecessary `-Zmiri-disable-isolation` in test
 2020-08-04 20:40:48 +05:30
Samrat Man Singh
bea7113eb8 Add impl FileDescriptor for stdin, stdout, stderr 
- Use `FileDescriptor::read` for stdin reads
- Use `FileDescriptor::write` for stdout/err writes
- Handle stdout/err reads in `FileDescriptor::read`
 2020-08-04 01:14:52 +05:30
Ralf Jung
5d22145069 test unwinding past topmost frame of a stack 2020-08-01 14:20:05 +02:00
Ralf Jung
35309a200b rustup; fix linked_list test 2020-08-01 14:18:52 +02:00
Ralf Jung
729ccbc65e test track_caller on trait objects 2020-07-31 18:30:07 +02:00
Ralf Jung
ee39ac9840 rustup for new folder layout 2020-07-29 14:27:14 +02:00
Ralf Jung
cae90b6d29 rustup and test fixes 2020-07-27 23:40:27 +02:00
Ralf Jung
c77540ce13 deallocate thread-local statics when the thread dies 2020-07-27 23:32:15 +02:00
Ralf Jung
2a42f8e93c fix and test order of TLS dtors and thread joining 2020-07-27 23:32:15 +02:00
Ralf Jung
390899e8b9 test referencing unsupported extern static 2020-07-27 23:32:15 +02:00
Ralf Jung
bc0569253f enable leak check tests on Windows 2020-07-23 15:56:38 +02:00
Ralf Jung
f68bba9906 test casting a dangling ptr back from an int 2020-07-11 20:56:47 +02:00
Justus K
d23e245f38
Move no_main test to compile-fail 2020-07-09 17:21:09 +02:00
Justus K
c93fc933bd
Add ui test for early exiting if no main 2020-07-09 14:08:45 +02:00
Ralf Jung
6c2521f54f adjust error messages 2020-07-07 22:48:51 +02:00
Ralf Jung
28b44d970c test validation of uninit memory (used to ICE) 2020-07-07 22:48:51 +02:00
Ralf Jung
6ca67a346b rustup 2020-07-02 10:48:01 +02:00
Ralf Jung
fcdacce4b1 fix some ignore-windows comments 2020-06-28 20:40:20 +02:00
Ralf Jung
3a5bcb97ed move rwlock dequeuing to shared code, and use that code for Windows rwlocks 2020-06-28 11:28:46 +02:00
Ralf Jung
e54619b5e1 with this, we support panics on Windows 2020-06-27 14:43:37 +02:00
Ralf Jung
dca00ab85e introduce platform-specific module hierarchy for dlsym (similar to foreign_items) 2020-06-27 14:36:05 +02:00
bors
bde2eb4a44 Auto merge of #1460 - RalfJung:modules, r=RalfJung 
Re-organize platform-specific shims

Move platform-specific code to `shims::{posix::{linux, macos}, windows}`. Also make it private in these modules to ensure we are reasonably structured.
 2020-06-27 11:27:36 +00:00
Ralf Jung
395f5d40dc Rename shims::{sync -> posic_sync} and move sync_singlethread test to other sync test 2020-06-27 12:37:12 +02:00
Ralf Jung
b46f946c81 supply our own implementation of the CTFE pointer comparison intrinsics 2020-06-27 11:57:43 +02:00
Ralf Jung
3ea8c5fa33 bump Rust 2020-06-26 20:36:08 +02:00
Ralf Jung
2e5a0dc172 add a miscompilation test 2020-06-22 11:32:01 +02:00
Ralf Jung
8d1d572472 unaligned-raw-deref is always UB 2020-06-20 14:34:57 +02:00
Ralf Jung
03fe3772a8 make sure the raw_ptr macros also avoid UB 2020-06-20 14:31:47 +02:00
Ralf Jung
a29f86b512 make sure '&raw *' on a dangling raw ptr is UB 2020-06-20 14:28:55 +02:00
Ralf Jung
2940da9d1f bump Rust 2020-06-20 11:48:42 +02:00
bors
ffd03b3caa Auto merge of #1418 - divergentdave:file-sync, r=RalfJung 
Add file sync shims

This PR adds shim implementations for these related file syncing functions.
* `fsync`, for POSIX targets, backed by `File::sync_all()`
* `fdatasync`, for POSIX targets, backed by `File::sync_data()`
* `fcntl` with command `F_FULLFSYNC`, for macOS targets, backed by `File::sync_all()`
* `sync_file_range`, for Linux targets, backed by `File::sync_data()`
 2020-06-09 08:48:40 +00:00
David Cook
e352d4fbb7 Finish fixing Windows host support 2020-06-06 16:54:13 +00:00
Ralf Jung
dcb2b30982 rustup, and adjust timing tests 2020-06-03 09:40:21 +02:00
Ralf Jung
7d406b152a test WTF8 encoding corner cases 2020-06-01 01:12:31 +02:00
bors
4fd0aa316e Auto merge of #1441 - RalfJung:sync-cleanup, r=RalfJung 
Synchronization primitive cleanup

Make some methods infallible, move a bit more work into the platform-independent `sync.rs`, and fix a bug in rwlock unlocking.
 2020-05-31 09:10:19 +00:00
Ralf Jung
3032224d19 rustup, adjust error message 2020-05-31 10:30:25 +02:00
Ralf Jung
acb3ec0866 test and fix for rwlock unlock bug 2020-05-30 22:48:43 +02:00
Ralf Jung
c77e9022d5 rustup (and account for stabilization) 2020-05-30 09:23:25 +02:00
Ralf Jung
ac454a2485 cargo-miri: allow overwriting miri command, and make that consistent with compiletest 2020-05-28 08:53:44 +02:00
David Cook
3252082474 Fix test on Windows hosts 
FlushFileBuffers requires that a file be opened for writing
 2020-05-25 13:20:29 -05:00
David Cook
7ba8bbc49f Update comments 2020-05-25 07:32:56 -05:00
Vytautas Astrauskas
34ddd775e8 Increase the elapsed time window. 2020-05-25 08:07:07 +02:00
Vytautas Astrauskas
90590a399d Small fixes. 2020-05-25 00:02:54 +02:00
Vytautas Astrauskas
6ff0af3adf Fix #1419. 2020-05-25 00:02:54 +02:00
Vytautas Astrauskas
bd97074517 Small changes. 2020-05-25 00:02:54 +02:00
Vytautas Astrauskas
babedc938e Rewrite notify all test. 2020-05-25 00:02:54 +02:00
Vytautas Astrauskas
8b5a9836be Small changes. 2020-05-25 00:02:54 +02:00
Vytautas Astrauskas
fdfd56b75b Small changes. 2020-05-25 00:02:54 +02:00
Vytautas Astrauskas
86eb262e8a Cleanup Condvar tests. 2020-05-25 00:02:54 +02:00
Vytautas Astrauskas
4a303b1309 Add a timeout test for conditional variables. 2020-05-25 00:02:54 +02:00
Vytautas Astrauskas
6e774dec86 Move all run-pass synchronization primitive tests to sync.rs. 2020-05-25 00:02:54 +02:00
Vytautas Astrauskas
679245769b Implement support for synchronization primitives. 2020-05-25 00:02:54 +02:00
Ralf Jung
e6ced2f9c4 add interesting unsizing test 2020-05-24 12:03:06 +02:00
bors
70d5caf17e Auto merge of #1429 - RalfJung:discriminant_value, r=RalfJung 
test discriminant_value intrinsic

Make sure this works for all types, not just enums/generators.
 2020-05-23 14:31:37 +00:00
Ralf Jung
404c37999b test discriminant_value intrinsic 2020-05-23 16:30:50 +02:00
David Cook
87a846f2d6 Update to match rustc changes 2020-05-22 17:03:25 +02:00
Ralf Jung
cc1a2119f6 adjust for changed allocation strategy 2020-05-20 00:00:35 +02:00
David Cook
0b060c7364 Review comments 2020-05-19 08:57:31 -05:00
David Cook
87c4694448 Add file sync shims 
Adds implementations for fsync, fdatasync, and sync_file_range
 2020-05-17 22:10:40 -05:00
Ralf Jung
791ec8fef7 fmt 2020-05-11 10:54:21 +02:00
Ralf Jung
88fc42bbc8 compiletest: no need to call rustc here 2020-05-11 10:52:44 +02:00
Oliver Scherer
3fdab9c446 Update to rustc changes 2020-05-10 10:14:03 +02:00
Ralf Jung
b4ad90669b rustup 2020-05-07 23:59:26 +02:00
Ralf Jung
fb3a067ac6 rustup; fix error messages 2020-05-07 08:38:59 +02:00
Ralf Jung
da6846c8a9 copy some float cast tests from rustc 2020-05-06 22:46:42 +02:00
Chase Albert
f741f2cc71 Correct the test. 2020-05-04 23:22:00 -04:00
Chase Albert
f46d197431 Test for too many args. 2020-05-04 13:51:23 -04:00
Chase Albert
46aaab30fe Add a test for check_arg_count. 2020-05-04 13:51:23 -04:00
Ralf Jung
ec95ed4556 rename single-threaded sync test 2020-05-04 09:45:15 +02:00
Ralf Jung
f2f4e6fc65 also test panic from thread with name 2020-05-03 12:51:48 +02:00
Ralf Jung
c26fb591fa also test std::hint::spin_loop 2020-05-03 12:47:23 +02:00
Ralf Jung
2b591b849f test panics in threads 2020-05-03 12:43:38 +02:00
Ralf Jung
ff1f0b06cc explain what happens in a test 2020-05-03 12:43:38 +02:00
Ralf Jung
dbd6403955 rustup for fixed error messages 2020-05-02 02:13:48 +02:00
Ralf Jung
393165f859 rustup; fix for changed error messages 2020-05-01 14:43:59 +02:00
Ralf Jung
1a704a517a rustup, adjust error messages 2020-05-01 10:29:39 +02:00
Vytautas Astrauskas
48da0cf489 Fix prctl SET_NAME and GET_NAME behaviour. 2020-04-30 08:35:59 -07:00
Vytautas Astrauskas
3b5854191c Fix MacOS and Windows builds. 2020-04-27 15:21:01 -07:00
Vytautas Astrauskas
331dbd1469 Add a test for joining in a destructor. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
39efdf31cf Move prctl test to the same file as other libc tests. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
60cd8aa4b0 Delete a duplicate test. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
ff5e35b90a Added a test that joining main is UB. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
feb188360e Unify TLS dtors; move stepping outside. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
8240ed26a9 Change the test not to rely on internals. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
90e9a87fa7 Add an explanatory comment to the test. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
cc9248a7c8 Ignore prctl test on MacOS because it does not support it. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
eaa63266d8 Make multiple threads to try to join a thread while it is still running. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
8a7dbde372 Check prctl argument types and fix the test. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
40e50bf58b Clarify test comments. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
e7b82fde4a Fix the test annotation. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
e7c2694b8b Make the main thread detached. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
9a01c3fa3e Clarify comments about TLS destructor handling in Windows, add a test for TLS destructors. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
5b55e0706c Add more concurrency tests. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
80459bbf77 Improve concurrency tests. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
75e6549c11 Improve prctl, add a test. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
421be273cc Add concurrency tests. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
d9ec0f2b36 Add a missing newline in the test. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
325c31e578 Address some of the reviewers comments. 2020-04-27 14:26:36 -07:00
Vytautas Astrauskas
1c8a59c691 Rebase on PR 1157. 2020-04-27 14:23:32 -07:00
Vytautas Astrauskas
b04bf8a514 Rustfmt the test. 2020-04-27 14:23:32 -07:00
Vytautas Astrauskas
aef4c95599 Fix the problem of sending pointed to thread local statics. Add a regression test. 2020-04-27 14:23:32 -07:00
Vytautas Astrauskas
92946b5a9c Add a test for thread locals. 2020-04-27 14:23:32 -07:00
Vytautas Astrauskas
82f17ab917 Implement basic support for concurrency (Linux only). 2020-04-27 14:23:32 -07:00
bors
e06df3a881 Auto merge of #1373 - RalfJung:test-rename, r=RalfJung 
rename tests: undefined -> uninit
 2020-04-27 10:54:57 +00:00
bors
4556daadc2 Auto merge of #1370 - samrat:add-scalar-size-test, r=RalfJung 
Add test to verify that argument size mismatch throws UB

Also, bump up `rust-version`

Closes #1355
 2020-04-27 10:33:29 +00:00
Ralf Jung
a5ddaa07eb rename tests: undefined -> uninit 2020-04-27 12:32:03 +02:00
Samrat Man Singh
73f258c451 Replace error-pattern with annotation; remove unreachable line 2020-04-27 15:34:42 +05:30
bors
da940eb91f Auto merge of #1354 - divergentdave:dump-alloc-on-undef-read, r=RalfJung 
Print hex dump of alloc on reading undef bytes

Here's a small addition I made locally to the UB diagnostics, in case you're interested in it. This PR calls `dump_alloc()` on the relevant allocation if Miri fails on UB due to reading undefined bytes. This came in handy when diagnosing such an issue in a large program using unsafe Rust, in part because it wasn't deterministic enough to use `-Zmiri-track-alloc-id=`. If you'd like to put this behind another -Z flag, let me know.
 2020-04-27 09:33:30 +00:00
Samrat Man Singh
ae9796b9d8 Fix shim_arg_size test for 32-bit machines 2020-04-27 10:00:35 +05:30
Samrat Man Singh
da86c81e39 Add test to verify arg size mismatch throws UB 
Also: bump up `rust-version`
 2020-04-27 09:37:31 +05:30
Ralf Jung
c46668c556 fix exit code on rustc errors 2020-04-25 11:12:50 +02:00
David Cook
7f92eab3c4 Add test to exercise InvalidUndefBytes 2020-04-23 20:00:25 -05:00
Ralf Jung
a5eaa5703c test suite: rely on CARGO_BIN_EXE_ env vars to find Miri binary 2020-04-23 19:20:09 +02:00
bors
26baf87e43 Auto merge of #1348 - RalfJung:raw-addr-of-align, r=RalfJung 
Stacked Borrows: alignment does not matter

Fixes https://github.com/rust-lang/miri/issues/1339
Requires https://github.com/rust-lang/rust/pull/71280
 2020-04-22 21:44:14 +00:00
Ralf Jung
270adbc7c6 Stacked Borrows: alignment does not matter 2020-04-22 23:32:19 +02:00
David Cook
54897f66f8 Implement ftruncate64/ftruncate for File::set_len 2020-04-21 21:17:54 -05:00
bors
8d9db57a0d Auto merge of #1335 - vakaras:add-threads-noop, r=RalfJung 
Move the stack to the evaluator. (no-op PR for 70598)

The changes to Miri to make it to compile with Rustc PR https://github.com/rust-lang/rust/pull/70598.
 2020-04-20 08:39:29 +00:00
Ralf Jung
73772fede6 adjust for Weak::as_raw -> as_ptr rename 2020-04-20 10:04:17 +02:00
bors
763782aa08 Auto merge of #1342 - divergentdave:pause-instruction, r=RalfJung 
Handle std::sync::atomic::spin_loop_hint()

This PR adds support for `std::sync::atomic::spin_loop_hint()` by implementing the `llvm.x86.sse2.pause` intrinsic when the target is x86-based. It appears this is the first LLVM intrinsic in foreign_items, so I added a couple match blocks to handle it or fall through to the different OS-specific methods. I added a basic smoke test to `tests/run-pass/sync.rs`. I came across this by way of `crossbeam::utils::Backoff::spin()`, FWIW.
 2020-04-19 14:53:02 +00:00
Ralf Jung
70c828b761 test some more extreme cast cases 2020-04-19 09:34:54 +02:00
Ralf Jung
fbf47d1784 note source of test values 2020-04-19 09:21:00 +02:00
David Cook
7b69a6271e Add support for std:🧵:yield_now 2020-04-18 19:31:02 -05:00
Ralf Jung
699685c07c rename test_cast -> test_both_cast to make purpose clearer 2020-04-18 13:07:50 +02:00
bors
45113eb6a4 Auto merge of #1325 - RalfJung:float_to_int_unchecked, r=RalfJung 
implement float_to_int_unchecked

@hanna-kruppe would be great if you could have a look at this.

`float.rs` tests legal casts. `test_cast` checks that both `as` casts and unchecked casts work (i.e., these are not saturating). The `compile-fail` tests should ensure that illegal casts via the intrinsic are detected as such.

Fixes https://github.com/rust-lang/miri/issues/1264
 2020-04-18 08:13:24 +00:00
Ralf Jung
bb38ab4340 use u128::MAX symbolic name 2020-04-18 10:11:45 +02:00
Ralf Jung
0345ee42da some UB gets masked by optimizations 2020-04-18 09:15:59 +02:00
Ralf Jung
c6ab27577b test that we check dynamic actual size of object 2020-04-18 02:06:36 +02:00
Ralf Jung
521e77d712 test that we properly check dynamic alignment 2020-04-17 20:43:54 +02:00
Ralf Jung
6a81014ae9 test #[derive] on packed struct 2020-04-17 11:04:48 +02:00
David Cook
57c7119315 Handle std::sync::atomic::spin_loop_hint() 2020-04-16 23:24:57 -05:00
Ralf Jung
3e3613f2e2 merge packed_static and packed_struct 2020-04-16 09:33:22 +02:00
Ralf Jung
974f9c3023 avoid test-wide allowance of unused/dead code 2020-04-16 09:25:12 +02:00
Ralf Jung
b0fe99e81d consolidate ptr tests in fewer files 2020-04-16 09:06:21 +02:00
Ralf Jung
07c696e27e test some so-far untested intrinsics 2020-04-15 18:00:16 +02:00
Ralf Jung
a85dab42ea tighten Instance sanity check 2020-04-15 13:13:17 +02:00
bors
669191bca9 Auto merge of #1331 - samrat:macos-mach-timebase-info, r=RalfJung 
Implement `mach_timebase_info` for macOS

Since we return nanoseceonds instead of ticks from `mach_absolute_time`, we don't need to scale the absolute time

Fixes #1288
 2020-04-14 09:30:22 +00:00
Ralf Jung
e6822d60b3 make sure we find some things without validation or stacked borrows, respectively 2020-04-14 10:23:47 +02:00
Ralf Jung
179e78d0ad make sure our disable flags do not miss all bugs; move type-assert intrinsic tests to their folder 2020-04-14 10:23:47 +02:00
Ralf Jung
f4a15444cf fix comment in alignment test 2020-04-14 09:50:20 +02:00
Samrat Man Singh
f6bb8111f2 Use pre-defined u32 layout 
Also fix typo and remove newline
 2020-04-14 09:40:40 +05:30
Ralf Jung
fd8beaf5c4 add option to disable alignment checks 2020-04-13 17:58:03 +02:00
Samrat Man Singh
5f6d250b30 [macOS] Implement mach_timebase_info 
Since we return nanoseceonds instead of ticks from
`mach_absolute_time`, we don't need to scale the absolute time
 2020-04-13 21:18:34 +05:30
Ralf Jung
17c52d47e7 add tests for invalid float-to-int casts 2020-04-12 12:01:20 +02:00
Ralf Jung
25c71e5c0e test some more corner cases in happy float casts 2020-04-12 12:01:20 +02:00
Ralf Jung
30d07c8616 move error-pattern to inline annotation where possible 2020-04-12 12:01:20 +02:00
Ralf Jung
78ce616490 implement float_to_int_unchecked 2020-04-12 12:01:20 +02:00
Ralf Jung
8d1f5336c2 also test unsafe cast intrinsic (happy cases) 2020-04-12 12:01:20 +02:00
bors
aad2c5af06 Auto merge of #1321 - RalfJung:float, r=RalfJung 
Even more float cast tests

Copy a bunch of float cast tests from https://github.com/WebAssembly/testsuite/blob/master/conversions.wast. I didn't do all of them though, too lazy... maybe we should have a wasm interpreter written in Rust and run that in Miri and use the wasm test suite directly that way? :P
 2020-04-11 18:39:06 +00:00
Ralf Jung
e5e0ced87e smoketest f32 fast-math intrinsics 2020-04-11 11:37:26 +02:00
Ralf Jung
faff175f3e some some int-to-float and float-to-float cast tests from wasm test suite 2020-04-11 11:37:26 +02:00
Ralf Jung
5db01f7371 copy lots of float-to-int cast tests from wasm test suite 2020-04-11 11:37:26 +02:00
Ralf Jung
c63c413331 a few more inf/nan/negz tests 2020-04-11 11:37:26 +02:00
Ralf Jung
b2bf4ec2f5 organize compile-fail tests in folders 2020-04-11 11:36:55 +02:00
Ralf Jung
d276d952ff fix unused warnings in tests 2020-04-10 10:27:59 +02:00
bors
325682ad56 Auto merge of #1301 - RalfJung:global-leaks, r=RalfJung 
memory reachable through globals is not a leak

Blocked on https://github.com/rust-lang/rust/pull/70762
Fixes https://github.com/rust-lang/miri/issues/940
 2020-04-07 17:33:24 +00:00
Ralf Jung
7841f44593 rustup 2020-04-07 19:33:03 +02:00
Ralf Jung
f462b4c257 memory reachable through globals is not a leak any more; adjust for better memory dumping 2020-04-07 19:03:41 +02:00
bors
3342f155e1 Auto merge of #1310 - RalfJung:float-assoc, r=RalfJung 
prefer float assoc consts over std module
 2020-04-07 14:42:34 +00:00
Ralf Jung
a46f8b66c3 prefer float assoc consts over std module 2020-04-07 16:13:19 +02:00
bors
d935f62172 Auto merge of #1157 - divergentdave:shim-pthread-try-lock, r=RalfJung 
Add shims for RwLock::try_read/RwLock::try_write

This implements proper locking so that we can check for reentrancy and implement the `try_*` methods.

Fixes https://github.com/rust-lang/miri/issues/781
 2020-04-06 13:55:53 +00:00
David Cook
80497e5d3c Clean up conditional compilation 2020-04-06 07:23:58 -05:00
David Cook
134d6a2faa Add tests, improve test coverage 2020-04-05 14:55:57 -05:00
David Cook
d5d5a56926 Add tests 2020-04-05 13:25:49 -05:00
Ralf Jung
177c0d3baa also test push_str ptr stability (the original report) 2020-04-05 19:13:52 +02:00
David Cook
79f3307f30 Update comments, rearrange code 2020-04-05 12:09:31 -05:00
Ralf Jung
3eb76f4a77 rustup 2020-04-05 18:28:05 +02:00
Ralf Jung
41abcdb422 for consistency also rename floats.rs 2020-04-05 18:26:51 +02:00
Ralf Jung
ab32084ddb use mutable reference 2020-04-05 18:26:51 +02:00
Ralf Jung
9159b1eef8 test some more vec ptr invalidation 2020-04-05 18:26:51 +02:00
Ralf Jung
b8444deb64 test Vec::extend 2020-04-05 18:26:51 +02:00
David Cook
37ddde9f70 Implement TryEnterCriticalSection 2020-04-05 10:33:32 -05:00
David Cook
bb06a0cf0e Restrict mutex static initializer test to Linux 
On macOS, libc does not have a static initializer for recursive mutexes
 2020-04-05 10:33:09 -05:00
David Cook
de29546414 Add and rearrange mutex tests 2020-04-05 10:27:39 -05:00
David Cook
d11315ebfb Fix misleading function names 2020-04-05 10:05:34 -05:00
David Cook
5cc091bc6e Add test of recursive mutex using libc FFI 2020-04-05 10:05:14 -05:00
David Cook
c773ca8614 Style fixes 2020-04-05 10:04:53 -05:00
David Cook
dca83d73cb Add test that exercises ReentrantMutex 2020-04-05 10:04:33 -05:00
David Cook
dd9896b0f8 Implement mutex and rwlock functions 2020-04-05 10:03:22 -05:00
David Cook
c2683dad34 Clean up test case 2020-04-05 09:25:21 -05:00
David Cook
88f319fb4c Add failing tests for mutex and rwlock 2020-04-05 09:25:21 -05:00
David Cook
46679bc9ef Add shims for RwLock::try_read/RwLock::try_write 2020-04-05 09:25:21 -05:00
bors
0e8a1a40f2 Auto merge of #1294 - JOE1994:windows_instant, r=RalfJung 
Add support for 'std::time::Instant' in Windows

Add support for creating `std::time::Instant` in Windows

Includes shims for `QueryPerformanceCounter` & `QueryPerformanceFrequency` in Windows, which are both called in Windows when `std::time::Instant` is created.

Windows docs page ["Acquiring high-resolution time stamps"](https://docs.microsoft.com/en-us/windows/win32/sysinfo/acquiring-high-resolution-time-stamps) was helpful in learning how `QueryPerformanceCounter` & `QueryPerformanceFrequency` work.

closes #1291
 2020-04-03 06:36:15 +00:00
JOE1994
d5de67a5a0 change cfg gate to enable testing Instant subtraction in Windows 2020-04-02 16:15:23 -04:00
Ralf Jung
cd132f563e port compile-fail allocator tests to stable API 2020-04-02 13:33:59 +02:00
Ralf Jung
033eae5ad7 rustup for AllocRef changes 2020-04-02 11:45:17 +02:00
Ralf Jung
5130aa55a2 adjust stacktrace printing to rustc changes 2020-04-02 09:14:17 +02:00
JOE1994
957ec2be10 Add support for 'std::time::Instant' in Windows 2020-04-01 20:35:56 -04:00
Ralf Jung
41d90709f2 sanity check time values a bit more 2020-04-01 20:34:12 +02:00
JOE1994
b3f9e53049 Implement 'GetSystemTimeAsFileTime' shim for Windows 2020-04-01 10:55:26 -04:00
Ralf Jung
26b5012368 add TODO 2020-03-31 17:53:27 +02:00
Ralf Jung
62eaecd2aa test subtracting SystemTime and Instant 2020-03-31 17:50:10 +02:00
bors
319f2dd9e1 Auto merge of #1279 - divergentdave:open_O_EXCL, r=RalfJung 
Add support for OpenOptions::create_new()/O_EXCL

This PR extends the POSIX shim for `open` to support the `O_EXCL` flag, when it is used alongside `O_CREAT`, and exercises it by testing `OpenOptions::create_new`.
 2020-03-30 15:49:45 +00:00
Ralf Jung
846ce3c261 test const-generic Vec::from(array) 2020-03-30 10:23:16 +02:00
David Cook
808709c288 Add support for OpenOptions::create_new()/O_EXCL 2020-03-29 16:06:41 -05:00
JOE1994
1141b21e50 Windows shims for GetCurrentDirectoryW/SetCurrentDirectoryW 2020-03-29 11:30:08 -04:00
Ralf Jung
4e471f745f fix float test comments and test a few more int->float casts 2020-03-28 15:47:00 +01:00
bors
fc30266540 Auto merge of #1265 - RalfJung:float-cast, r=RalfJung 
test floating point casting better
 2020-03-28 14:19:29 +00:00
Ralf Jung
b8a817fc03 avoid promotion so this can be compared with rustc 2020-03-28 09:20:07 +01:00
Ralf Jung
032d9aa7d5 also do some float-to-float cast testing 2020-03-28 09:10:34 +01:00
bors
f4308a0728 Auto merge of #1267 - RalfJung:macos-dtors, r=RalfJung 
implement TLS cleanup for macOS

Now that I can run macOS interpretation locally, this was not that hard to fix. ;)
Fixes https://github.com/rust-lang/miri/issues/443
 2020-03-28 07:55:42 +00:00
Ralf Jung
c5ef8a656f enable leak tests on macOS 2020-03-27 19:39:35 +01:00
JOE1994
ea836eeb0d remove or update 'ignore-windows' annotations in some tests 2020-03-27 14:18:19 -04:00
JOE1994
2fa07009f2 Windows shims for env var emulation 
Shims for GetEnvironmentVariableW / SetEnvironmentVariableW /
GetEnvironmentStringsW.
Passes test 'tests/run-pass/env.rs'
 2020-03-27 08:43:08 -04:00
Ralf Jung
a97ce8d94b test floating point casting better 2020-03-26 19:25:51 +01:00
Ralf Jung
47b91e619a test unreachable intrinsic 2020-03-25 09:32:15 +01:00
Ralf Jung
8817397828 test harness informs tests about suitable temp dir 2020-03-24 09:11:48 +01:00
Ralf Jung
3ba588db49 make fs.rs at least build under Windows 2020-03-24 09:11:48 +01:00
Ralf Jung
9091811147 use Wake trait for async-fn driver 2020-03-23 23:53:54 +01:00
Ralf Jung
b4b8750e44 bump Rust; HashMap should now work on macOS even with isolation 2020-03-23 10:34:15 +01:00
Ralf Jung
d85f09c4e4 platform -> target 2020-03-22 08:55:39 +01:00
Ralf Jung
238ed49a07 detect UB: overflow in copy/write_bytes 2020-03-21 17:54:33 +01:00
Ralf Jung
8acfafe186 test for zero-sized write_bytes to NULL 2020-03-21 17:54:18 +01:00
Ralf Jung
e890d4d5e1 call error location was fixed by rustup 2020-03-21 12:52:23 +01:00
bors
b2605d809d Auto merge of #1241 - RalfJung:dont-panic, r=RalfJung 
whitelist platforms where panicking should work

@CAD97 [proposed](https://github.com/rust-lang/miri/issues/1059#issuecomment-601217992) trying to get a better error for failed panics on Windows.

Could you test if this works for you?
 2020-03-21 09:55:23 +00:00
Ralf Jung
5c09047411 fix tests 2020-03-21 10:54:56 +01:00
Ralf Jung
bde3111c61 test windows panic message 2020-03-21 10:17:57 +01:00
Ralf Jung
4608b94bd8 implement CLOCK_MONOTONIC on Linux 2020-03-19 23:01:24 +01:00
Ralf Jung
49051e05ea rustup, and some final message adjustments 2020-03-19 08:41:01 +01:00
Ralf Jung
e1e158e103 adjust error messages for lower-case start 2020-03-19 08:26:08 +01:00
Ralf Jung
77cc0cddd9 add test for validation finding use-after-free 2020-03-19 08:25:08 +01:00
Ralf Jung
1103a10e2c adjust for error reform 2020-03-19 08:25:08 +01:00
bors
6b56aefa0b Auto merge of #1239 - elichai:2020-03-abort-intrinsics, r=RalfJung 
Abort instead of panic on asserting intrinsics

This fixes #1222
replacing the panic with an abort and a corresponding message.
the stack trace is already printed, this just adds an optional message the caller can pass, and I just pass the same message we passed to the panic but now to the abort instead.

r? @RalfJung
 2020-03-18 12:20:30 +00:00
Elichai Turkel
0826899ca0
Remove uninhabit/zeroed tests to a new test file for abort checking 2020-03-18 14:14:23 +02:00
Ralf Jung
a32e25677f move repeated run of test suite (without and with MIR optimizations) out of compiletest 2020-03-18 11:19:01 +01:00
Ralf Jung
8a26a288c2 rustup 2020-03-16 21:32:57 +01:00
Ralf Jung
497fbcbf44 rustup, fix for intrinsic rename and transmute error change 2020-03-14 09:27:35 +01:00
Ralf Jung
5531a79f4c rustup, test Abort terminator 2020-03-12 20:48:04 +01:00
Ralf Jung
548c90e102 share some code between panic intrinsics, and fix the message 2020-03-11 19:53:07 +01:00
Elichai Turkel
2802c3cf0b
Add tests for the new panic_if_any_invalid, panic_if_zero_invalid intrinsics 2020-03-11 16:02:49 +02:00
Ralf Jung
5ef48593fb adjust error 2020-03-09 17:03:39 +01:00
Ralf Jung
8394456247 properly panic in panic_if_uninhabited and align_offset shims 2020-03-08 20:00:40 +01:00
bors
574d81ce79 Auto merge of #1208 - christianpoveda:environ-shim, r=RalfJung 
Environ shim

Remake of https://github.com/rust-lang/miri/pull/1147. There are three main problems with this:

1. For some reason `update_environ` is not updating `environ` when `setenv` or `unsetenv` are called. Even then it works during initialization.
2. I am not deallocating the old array with the variables in `update_environ`.
3. I had to store the `environ` place into `MemoryExtra` as a field to update it. I was thinking about changing `extern_statics` to store places instead of `AllocID`s to avoid this.

@RalfJung
 2020-03-08 15:39:43 +00:00
Christian Poveda
8392a0c589
only expose environ on linux 2020-03-08 10:16:31 -05:00
Christian Poveda
18a71ef7b3
minor corrections 2020-03-07 11:35:00 -05:00
Christian Poveda
6eccc809f2
test that environ gets deallocated on changes 2020-03-07 09:39:55 -05:00
Ralf Jung
fefa8e5344 expand clock and fs tests a bit 2020-03-06 14:32:46 +01:00
Ralf Jung
7882dfb3f5
fix env update, and expand test 2020-03-06 08:21:53 -05:00
Christian Poveda
a28330febb
add testcase for environ shim 2020-03-06 08:21:53 -05:00
Ralf Jung
148269dd4b finally stop using min/max_value and the integer modules 2020-03-04 13:01:06 +01:00
Ralf Jung
db0d03229c fix allocator tests 2020-03-04 10:19:35 +01:00
Ralf Jung
58519a7a79 try even harder to catch invalid generator fields 2020-03-03 15:02:06 +01:00
Ralf Jung
88c45f9891 adjust for rustc changes 2020-03-02 13:51:08 +01:00
bors
c0934e1eca Auto merge of #1152 - divergentdave:shim-directory, r=RalfJung 
Add directory-related shims

This PR adds support for `mkdir`, `rmdir`, `opendir`, `closedir`, and `readdir64_r`.

Open directory streams are tracked through a HashMap indexed by pointer locations, which holds directory iterators. Since `DIR` is an opaque type in glibc, I represent them with 1-byte allocations, and then just use their pointers in HashMap lookups.

Tests are included to exercise the new functionality.
 2020-02-26 14:15:55 +00:00
David Cook
9fcc8a2a91 Review comments 2020-02-24 19:16:41 -06:00
Ralf Jung
274ae0438f add an option to disable Stacked Borrows 2020-02-24 16:22:02 +01:00