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1381 Commits

Author SHA1 Message Date
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