Provides generic Atomic<T> type
#1
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A-portable-atomic-util
Area: related to portable-atomic-util crate
C-enhancement
Category: A new feature or an improvement for an existing one
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taiki-e
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38: Add empty portable-atomic-util crate r=taiki-e a=taiki-e This adds an empty crate named `portable-atomic-util`. For now, I'm considering putting the features proposed in #1 (#8) and #37 into this crate, but they may be merged into the main `portable-atomic` crate in the future. Co-authored-by: Taiki Endo <[email protected]>
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```
AddressSanitizer:DEADLYSIGNAL
=================================================================
==9490==ERROR: AddressSanitizer: SEGV on unknown address 0x01fef692f240 (pc 0x55cf0d4e0fd7 bp 0x7ffd03fc2bf0 sp 0x7ffd03fc2b40 T0)
==9490==The signal is caused by a READ memory access.
#0 0x55cf0d4e0fd7 (/home/runner/work/portable-atomic/portable-atomic/target/fat-lto/x86_64-unknown-linux-gnu/release/deps/portable_atomic_util-00d6667bc63e2ad8+0x186fd7) (BuildId: c0b91b02598535e2c737f09aa3b674d9ad0b0dad)
#1 0x7f99a6e2a1c9 (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
#2 0x7f99a6e2a28a (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
#3 0x55cf0d42c024 (/home/runner/work/portable-atomic/portable-atomic/target/fat-lto/x86_64-unknown-linux-gnu/release/deps/portable_atomic_util-00d6667bc63e2ad8+0xd2024) (BuildId: c0b91b02598535e2c737f09aa3b674d9ad0b0dad)
==9490==Register values:
rax = 0x000001fe76937240 rbx = 0x00007ffd03fc2b40 rcx = 0x0000000000000000 rdx = 0x000000008fff6fff
rdi = 0x00007f99a4e09010 rsi = 0x0000000000000000 rbp = 0x00007ffd03fc2bf0 rsp = 0x00007ffd03fc2b40
r8 = 0x00000ff3b49b9200 r9 = 0x0000000000000000 r10 = 0xafffff00000fff01 r11 = 0x4000000000000000
r12 = 0x00007ffd03fc2d18 r13 = 0x0000000000000001 r14 = 0x00007f99a4e09000 r15 = 0x00000ff3349c1200
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/home/runner/work/portable-atomic/portable-atomic/target/fat-lto/x86_64-unknown-linux-gnu/release/deps/portable_atomic_util-00d6667bc63e2ad8+0x186fd7) (BuildId: c0b91b02598535e2c737f09aa3b674d9ad0b0dad)
==9490==ABORTING
error: test failed, to rerun pass `--lib`
Caused by:
process didn't exit successfully: `/home/runner/work/portable-atomic/portable-atomic/target/fat-lto/x86_64-unknown-linux-gnu/release/deps/portable_atomic_util-00d6667bc63e2ad8` (exit status: 1)
note: test exited abnormally; to see the full output pass --nocapture to the harness.
```
```
MemorySanitizer init done
MemorySanitizer:DEADLYSIGNAL
==9452==ERROR: MemorySanitizer: SEGV on unknown address (pc 0x562905b48101 bp 0x7ffd838eae60 sp 0x7ffd838ead70 T9452)
==9452==The signal is caused by a READ memory access.
==9452==Hint: this fault was caused by a dereference of a high value address (see register values below). Disassemble the provided pc to learn which register was used.
#0 0x562905b48101 (/home/runner/work/portable-atomic/portable-atomic/target/fat-lto/x86_64-unknown-linux-gnu/release/deps/portable_atomic_util-138683c7dc2360db+0x173f101) (BuildId: f6c38e887ad56074ba9df2f99079142d74ce3c51)
#1 0x562905b47f48 (/home/runner/work/portable-atomic/portable-atomic/target/fat-lto/x86_64-unknown-linux-gnu/release/deps/portable_atomic_util-138683c7dc2360db+0x173ef48) (BuildId: f6c38e887ad56074ba9df2f99079142d74ce3c51)
#2 0x7f5ffae2a303 (/lib/x86_64-linux-gnu/libc.so.6+0x2a303) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
#3 0x56290458bab4 (/home/runner/work/portable-atomic/portable-atomic/target/fat-lto/x86_64-unknown-linux-gnu/release/deps/portable_atomic_util-138683c7dc2360db+0x182ab4) (BuildId: f6c38e887ad56074ba9df2f99079142d74ce3c51)
==9452==Register values:
rax = 0x0000000000000000 rbx = 0x00007ffd838eae88 rcx = 0x00008ffd838eadf4 rdx = 0x00007ffd838ead00
rdi = 0x00007ffd838eadf6 rsi = 0x0000100000000000 rbp = 0x00007ffd838eae60 rsp = 0x00007ffd838ead70
r8 = 0x0000562905b4800c r9 = 0x0000562908947930 r10 = 0x000056290443459f r11 = 0x0000000000000202
r12 = 0x0000000000000001 r13 = 0x0000000000000000 r14 = 0x000056290692dee8 r15 = 0x00007f5ffb2c6000
MemorySanitizer can not provide additional info.
SUMMARY: MemorySanitizer: SEGV (/home/runner/work/portable-atomic/portable-atomic/target/fat-lto/x86_64-unknown-linux-gnu/release/deps/portable_atomic_util-138683c7dc2360db+0x173f101) (BuildId: f6c38e887ad56074ba9df2f99079142d74ce3c51)
==9452==ABORTING
error: test failed, to rerun pass `--lib`
Caused by:
process didn't exit successfully: `/home/runner/work/portable-atomic/portable-atomic/target/fat-lto/x86_64-unknown-linux-gnu/release/deps/portable_atomic_util-138683c7dc2360db` (exit status: 1)
note: test exited abnormally; to see the full output pass --nocapture to the harness.
```
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Requirements:
forbid(unsafe_code)compatible on the user side. (I have mentioned in the past the approach of using unsafe marker trait.)Atomic<&T>must be sound (i.e.,Relaxedordering is not allowed), butRelaxedordering should be allowed on plain data types like integers.The text was updated successfully, but these errors were encountered: