bors 732461b4cd Auto merge of #2045 - RalfJung:strict-provenance, r=RalfJung ...

add -Zmiri-strict-provenance

This implements [strict provenance](https://github.com/rust-lang/rust/issues/95228) in Miri. The only change is that casting an integer to a pointer does not even attempt to produce a good provenance for the given address; instead, it always uses the invalid provenance. This stricter than even `-Zmiri-tag-raw-pointers` in that it also rejects the following example (which does not even involve Stacked Borrows):
```rust
fn main() {
    let x = 22;
    let ptr = &x as *const _ as *const u8;
    let roundtrip = ptr as usize as *const u8;
    let _ = unsafe { roundtrip.offset(1) };
}
```
The new flag also implies `-Zmiri-tag-raw-pointers` since the only reason one would *not* want to tag raw pointers is to support ptr-int-ptr roundtrips.

Note that the flag does *not* check against ptr-to-int *transmutes*; that still requires `-Zmiri-check-number-validity`. You can also check for strict provenance *without* Stacked Borrows by adding `-Zmiri-disable-stacked-borrows`.

The new "Miri hard mode" flags for maximal checking are `-Zmiri-strict-provenance -Zmiri-check-number-validity`. (Add `-Zmiri-symbolic-alignment-check` if you feel extra spicy today.)

2022-04-01 22:40:26 +00:00

..

concurrency

add -Zmiri-strict-provenance

2022-04-01 14:10:24 -04:00

function_calls

Update tests for #[no_mangle] associated functions

2021-08-15 17:21:33 +08:00

panic

rustup

2021-07-07 09:33:01 +02:00

stacked-borrows

Remove spurious maybe_uninit_extra

2022-01-11 16:17:52 +01:00

adjacent-allocs.rs

final tweaks

2021-12-05 20:33:20 -05:00

align_offset_symbolic.rs

use real align_offset unless we symbolic alignment check is enabled

2020-08-16 18:26:04 +02:00

align_offset_symbolic.stdout

use real align_offset unless we symbolic alignment check is enabled

2020-08-16 18:26:04 +02:00

align.rs

use real align_offset unless we symbolic alignment check is enabled

2020-08-16 18:26:04 +02:00

args.rs

…

args.stdout

…

arrays.rs

test const-generic Vec::from(array)

2020-03-30 10:23:16 +02:00

arrays.stdout

test some const-generic-using methods

2019-07-13 10:25:04 +02:00

associated-const.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

assume_bug.rs

…

async-fn.rs

add tests for alignment on array initialization

2021-11-28 10:07:31 -05:00

atomic.rs

Add in atomic_{min,max}_x intrinsics

2021-03-02 20:17:05 +05:30

available-parallelism.rs

rustup

2022-03-05 17:26:32 -05:00

backtrace-api-v0.rs

add new version of backtrace api using flags=1

2022-03-19 18:14:11 -07:00

backtrace-api-v0.stderr

add new version of backtrace api using flags=1

2022-03-19 18:14:11 -07:00

backtrace-api-v0.stdout

add new version of backtrace api using flags=1

2022-03-19 18:14:11 -07:00

backtrace-api-v1.rs

add new version of backtrace api using flags=1

2022-03-19 18:14:11 -07:00

backtrace-api-v1.stderr

add new version of backtrace api using flags=1

2022-03-19 18:14:11 -07:00

backtrace-api-v1.stdout

add new version of backtrace api using flags=1

2022-03-19 18:14:11 -07:00

backtrace-std.rs

Normalize column numbers

2020-11-19 09:21:11 +01:00

backtrace-std.stderr

Update backtraces

2021-06-20 15:12:11 +08:00

bad_substs.rs

…

binary-heap.rs

expand collection tests

2020-09-10 08:44:27 +02:00

binops.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

bitop-beyond-alignment.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

bools.rs

…

box.rs

rustup

2020-10-29 20:57:38 +01:00

box.stdout

test Box::into_raw aliasing

2020-10-27 17:26:36 +01:00

btreemap.rs

add -Zmiri-strict-provenance

2022-04-01 14:10:24 -04:00

c_enums.rs

remove no-longer-needed allow(const_err)

2020-01-06 11:38:35 +01:00

calloc.rs

remove some unnecessary feature flags

2020-11-10 16:51:07 +01:00

calls.rs

rustup

2021-05-11 15:32:05 +02:00

cast_fn_ptr_unsafe.rs

…

cast_fn_ptr.rs

…

cast-rfc0401-vtable-kinds.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

catch.rs

…

catch.stdout

…

cfg_miri.rs

Don't use MIRI_DEFAULT_ARGS to compile host crates

2021-04-09 00:57:59 +08:00

char.rs

…

closure-drop.rs

…

closure-field-ty.rs

…

closures.rs

move blosure tests to closures file; test Box<dyn> a bit more

2019-11-07 09:14:23 +01:00

coerce_non_capture_closure_to_fn_ptr.rs

remove some no-longer-needed allow(const_err)

2020-02-21 11:05:56 +01:00

coercions.rs

rename some more tests

2019-11-25 15:08:47 +01:00

const-vec-of-fns.rs

Various cosmetic improvements.

2019-02-26 18:37:46 +00:00

constants.rs

…

current_dir_with_isolation.rs

isolated operations return EPERM; tweak isolation hint

2021-06-09 18:24:59 +02:00

current_dir_with_isolation.stderr

isolated operations return EPERM; tweak isolation hint

2021-06-09 18:24:59 +02:00

current_dir.rs

Windows shims for GetCurrentDirectoryW/SetCurrentDirectoryW

2020-03-29 11:30:08 -04:00

deriving-associated-types.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

disable-alignment-check.rs

add option to disable alignment checks

2020-04-13 17:58:03 +02:00

drop_empty_slice.rs

…

drop_on_array_elements.rs

rename call_drop_ tests to drop_

2019-11-07 08:56:11 +01:00

drop_on_fat_ptr_array_elements.rs

rename call_drop_ tests to drop_

2019-11-07 08:56:11 +01:00

drop_on_zst_array_elements.rs

rename call_drop_ tests to drop_

2019-11-07 08:56:11 +01:00

drop_through_owned_slice.rs

rename call_drop_ tests to drop_

2019-11-07 08:56:11 +01:00

drop_through_trait_object_rc.rs

rename call_drop_ tests to drop_

2019-11-07 08:56:11 +01:00

drop_through_trait_object.rs

rename call_drop_ tests to drop_

2019-11-07 08:56:11 +01:00

dst-field-align.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

dst-irrefutable-bind.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

dst-raw.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

dst-struct-sole.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

dst-struct.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

dyn-arbitrary-self.rs

test arbitrary-self dyn receivers

2022-03-20 14:03:46 -04:00

dyn-traits.rs

rustup

2020-10-29 20:57:38 +01:00

enum_discriminant_ptr_value.rs

add test for better ptr handling in enum niches

2021-07-17 13:59:58 +02:00

enum-nullable-const-null-with-fields.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

enums.rs

add another test case

2019-09-20 08:53:35 +02:00

env-exclude.rs

remove or update 'ignore-windows' annotations in some tests

2020-03-27 14:18:19 -04:00

env-forward.rs

add flag to forward specific env vars (while isolation remains enabled)

2022-03-05 11:14:37 -05:00

env-without-isolation.rs

remove or update 'ignore-windows' annotations in some tests

2020-03-27 14:18:19 -04:00

env.rs

Windows shims for env var emulation

2020-03-27 08:43:08 -04:00

env.stdout

fix env update, and expand test

2020-03-06 08:21:53 -05:00

exit.rs

implement exit

2019-04-21 12:36:17 +02:00

extern_crate_std_in_main.rs

Detect std by checking if the crate defines #[lang = "start"] rather than string comparison

2021-06-06 11:12:05 +08:00

extern_types.rs

…

fat_ptr.rs

rename some more tests

2019-11-25 15:08:47 +01:00

float_fast_math.rs

smoketest f32 fast-math intrinsics

2020-04-11 11:37:26 +02:00

float.rs

rustup

2021-04-25 16:57:48 +02:00

foreign-fn-linkname.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

format.rs

test raw pointer tracking; we cannot track raw pointers on Windows

2020-10-28 13:54:50 +01:00

format.stdout

…

from_utf8.rs

…

fs_with_isolation.rs

Update error code for fs ops in isolation

2021-07-20 08:23:51 -07:00

fs_with_isolation.stderr

Update error code for fs ops in isolation

2021-07-20 08:23:51 -07:00

fs.rs

test remove_dir_all

2022-03-20 10:36:27 -04:00

fs.stderr

Merge fs and fs_libc tests

2020-10-04 12:06:51 -04:00

fs.stdout

Merge fs and fs_libc tests

2020-10-04 12:06:51 -04:00

function_pointers.rs

update fn ptr tests

2022-02-25 12:06:10 -05:00

generator.rs

Move #[allow(unreachable_code)] in tests/run-pass/generator.rs

2021-08-26 16:16:43 +08:00

global_allocator.rs

implement #[global_allocator]

2021-09-28 20:32:53 -07:00

global_allocator.stdout

implement #[global_allocator]

2021-09-28 20:32:53 -07:00

hashmap.rs

expand collection tests

2020-09-10 08:44:27 +02:00

heap_allocator.rs

Use new std::alloc::Allocator interface.

2020-12-05 00:13:33 +01:00

heap.rs

adjust for changed allocation strategy

2020-05-20 00:00:35 +02:00

hello.rs

…

hello.stdout

…

integer-ops.rs

test int_log functions

2022-03-31 11:20:24 -04:00

intptrcast.rs

test casting a dangling ptr back from an int

2020-07-11 20:56:47 +02:00

intrinsics-integer.rs

implement and test unchecked_{add,sub,mul} intrinsics

2019-06-16 11:10:33 +02:00

intrinsics-math.rs

Add acos, asin, and atan foreign functions

2019-11-21 17:33:30 -05:00

intrinsics.rs

test Weak into_raw/from_raw on dangling ptrs

2020-12-31 13:11:34 +01:00

ints.rs

finally stop using min/max_value and the integer modules

2020-03-04 13:01:06 +01:00

issue-3794.rs

Add #[allow(dead_code)] in some tests

2021-09-11 18:58:57 +08:00

issue-3794.stdout

…

issue-5917.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

issue-15063.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

issue-15080.rs

slice_patterns is stable now

2020-01-19 10:03:18 -06:00

issue-15523-big.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

issue-17877.rs

slice_patterns is stable now

2020-01-19 10:03:18 -06:00

issue-20575.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

issue-23261.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

issue-26709.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

issue-27901.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

issue-29746.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

issue-30530.rs

Fix unused_must_use inside Box

2019-06-30 15:31:14 +01:00

issue-31267-additional.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

issue-33387.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

issue-34571.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

issue-35815.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

issue-36278-prefix-nesting.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

issue-53728.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

issue-73223.rs

rustup

2021-01-31 13:12:25 +01:00

issue-91636.rs

add regression test

2021-12-15 19:11:08 +01:00

issue-94371.rs

add test for rust issue 94371

2022-02-27 15:27:34 -05:00

issue-miri-133.rs

rename miri-issue to issue-miri for grouping

2019-11-14 10:16:44 +01:00

issue-miri-184.rs

…

issue-miri-1075.rs

test diverging closure fn ptr coercion

2019-12-02 15:42:33 +01:00

issue-miri-1925.rs

add tests for alignment on array initialization

2021-11-28 10:07:31 -05:00

iter.rs

fix into_iter usage

2019-11-08 12:43:26 +01:00

last-use-in-cap-clause.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

leak-in-static.rs

leak checker: also test AtomicPtr stored via 'swap'

2020-12-21 11:36:39 +01:00

libc.rs

Per-thread errno storage

2020-09-02 20:57:20 -05:00

libc.stderr

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

linked-list.rs

expand collection tests

2020-09-10 08:44:27 +02:00

linux-getrandom-without-isolation.rs

test host randomness access

2019-08-23 23:30:23 +02:00

linux-getrandom.rs

Improve formatting

2019-08-04 16:44:32 -04:00

loop-break-value.rs

the never type got de-stabilized again; adjust tests

2019-12-15 12:23:43 +01:00

loops.rs

…

main_fn.rs

Rustup for rust-lang/rust#84401

2021-04-30 19:35:59 +08:00

main_result.rs

support main functions with Result return type

2019-12-23 17:45:23 +01:00

malloc.rs

remove some unnecessary feature flags

2020-11-10 16:51:07 +01:00

many_shr_bor.rs

rustup

2021-01-31 13:12:25 +01:00

match_slice.rs

…

memchr.rs

platform -> target

2020-03-22 08:55:39 +01:00

memleak_ignored.rs

add flag to ignore memory leaks

2019-12-07 13:44:48 +01:00

move-arg-2-unique.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

move-arg-3-unique.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

move-uninit-primval.rs

rename tests: undefined -> uninit

2020-04-27 12:32:03 +02:00

mpsc.rs

force pointers before reborrowing; fixes cargo miri test suite

2019-07-10 14:36:56 +02:00

multi_arg_closure.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

negative_discriminant.rs

…

observed_local_mut.rs

add an option to disable Stacked Borrows

2020-02-24 16:22:02 +01:00

option_box_transmute_ptr.rs

…

option_eq.rs

…

overflow_checks_off.rs

test for overflow-checks=off

2021-11-23 14:07:46 -05:00

overloaded-calls-simple.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

packed_struct.rs

rustup

2021-01-31 13:12:25 +01:00

pointers.rs

finally stop using min/max_value and the integer modules

2020-03-04 13:01:06 +01:00

portable-simd.rs

fix simd_bitmask shorter than a byte on big-endian

2022-03-17 13:14:16 -04:00

products.rs

…

ptr_int_casts.rs

consolidate ptr tests in fewer files

2020-04-16 09:06:21 +02:00

ptr_offset.rs

rustup; account for ptr_offset_from stabilization

2020-08-24 10:06:44 +02:00

ptr_raw.rs

consolidate ptr tests in fewer files

2020-04-16 09:06:21 +02:00

rc.rs

add -Zmiri-strict-provenance

2022-04-01 14:10:24 -04:00

recursive_static.rs

…

reentrant-println.rs

Update comments, rearrange code

2020-04-05 12:09:31 -05:00

reentrant-println.stdout

Add test that exercises ReentrantMutex

2020-04-05 10:04:33 -05:00

regions-lifetime-nonfree-late-bound.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

regions-mock-trans.rs

remove some unnecessary feature flags

2020-11-10 16:51:07 +01:00

rename_std.rs

Detect std by checking if the crate defines #[lang = "start"] rather than string comparison

2021-06-06 11:12:05 +08:00

rfc1623.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

rust-lang-org.rs

…

send-is-not-static-par-for.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

sendable-class.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

simd-intrinsic-generic-elements.rs

Remove non-power-of-two SIMD vectors

2021-02-08 00:17:24 -05:00

slices.rs

Auto merge of #2045 - RalfJung:strict-provenance, r=RalfJung

2022-04-01 22:40:26 +00:00

small_enum_size_bug.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

specialization.rs

bump Rust

2020-06-20 11:48:42 +02:00

start.rs

add support for #[start]

2021-09-02 15:41:10 -07:00

start.stdout

add support for #[start]

2021-09-02 15:41:10 -07:00

static_memory_modification.rs

…

static_mut.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

strings.rs

add -Zmiri-strict-provenance

2022-04-01 14:10:24 -04:00

subslice_array.rs

slice_patterns is stable now

2020-01-19 10:03:18 -06:00

sums.rs

…

tag-align-dyn-u64.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

threadleak_ignored.rs

make sure we only terminate main thread once TLS is initialized

2021-07-27 14:05:37 +02:00

threadleak_ignored.stderr

also ignore 'thread leaks' with -Zmiri-ignore-leaks

2021-07-25 14:21:06 +02:00

time.rs

Update comment

2020-09-07 15:05:26 -05:00

too-large-primval-write-problem.rs

rustup

2021-10-12 11:39:06 -04:00

track-caller-attribute.rs

Rustup for #[track_caller] trait object changes

2021-07-10 11:51:00 -05:00

transmute_fat2.rs

fix a test for big-endian targets

2020-08-22 18:07:43 +02:00

transmute_fat2.stderr

Enable backtrace feature in the generated Xargo.toml

2020-10-20 18:27:55 -04:00

transmute_fat.rs

add an option to disable Stacked Borrows

2020-02-24 16:22:02 +01:00

trivial.rs

…

try-operator-custom.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

tuple_like_enum_variant_constructor_pointer_opt.rs

…

tuple_like_enum_variant_constructor_struct_pointer_opt.rs

…

tuple_like_enum_variant_constructor.rs

…

tuple_like_struct_constructor.rs

…

u128.rs

rustup

2021-04-25 16:57:48 +02:00

uninit_number_ignored.rs

Add tests for -Zmiri-check-number-validity

2021-11-10 11:36:42 -08:00

union-overwrite.rs

rustup: fix for write_bytes and new union rules

2019-10-22 10:13:11 +02:00

union.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

unops.rs

…

unsized-tuple-impls.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

validation_lifetime_resolution.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

vec-matching-fold.rs

slice_patterns is stable now

2020-01-19 10:03:18 -06:00

vec.rs

add -Zmiri-strict-provenance

2022-04-01 14:10:24 -04:00

vecdeque.rs

add -Zmiri-strict-provenance

2022-04-01 14:10:24 -04:00

vecdeque.stdout

test VecDeque debug printing

2019-02-15 10:41:12 +01:00

volatile.rs

use copy_op directly insteadof write_scalar

2019-02-26 19:49:02 +09:00

without-validation.rs

test for no-validation-only failure

2019-06-04 13:21:04 +02:00

write-bytes.rs

Add test for volatile_set_memory

2021-08-23 12:42:13 +02:00

wtf8.rs

test WTF8 encoding corner cases

2020-06-01 01:12:31 +02:00

zst_box.rs

…

zst_variant_drop.rs

…

zst.rs

adjust for refactored memory pointer checks

2019-06-23 20:19:26 +02:00