AddressSanitizer reports leak for empty main function on macOS for aarch64-apple-darwin #121624
Description
Code:
fn main() {}Command:
RUSTFLAGS="-Z sanitizer=address" ASAN_OPTIONS=detect_leaks=1 cargo +nightly run -Z build-std --target aarch64-apple-darwin I expected to see this happen: nothing.
Instead, this happened: leak reported, full report below.
Meta
rustc --version --verbose:
rustc 1.78.0-nightly (0ecbd0605 2024-02-25) binary: rustc commit-hash: 0ecbd0605770f45c9151715e66ba2b3cae367fcb commit-date: 2024-02-25 host: aarch64-apple-darwin release: 1.78.0-nightly LLVM version: 18.1.0 Message
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.00s Running `target/debug/leak_test` ================================================================= ==42548==ERROR: LeakSanitizer: detected memory leaks Direct leak of 120 byte(s) in 1 object(s) allocated from: #0 0x104e92ea4 in malloc+0x6c (librustc-nightly_rt.asan.dylib:arm64+0x4eea4) #1 0x18ce23788 in dyld4::RuntimeState::_instantiateTLVs(unsigned long)+0xd8 (dyld:arm64+0xfffffffffff5d788) #2 0x6a5f00018d19e688 (<unknown module>) #3 0x57380001045bd698 (<unknown module>) #4 0x1045b9af8 in std::rt::lang_start_internal::h1eb653699f840ea4+0x294 (leak_test:arm64+0x100015af8) #5 0x1045a5624 in std::rt::lang_start::h2668e3698e5b2b03 rt.rs:165 #6 0x1045a5930 in main+0x20 (leak_test:arm64+0x100001930) #7 0x18ce150dc (<unknown module>) #8 0xbc4d7ffffffffffc (<unknown module>) Direct leak of 72 byte(s) in 1 object(s) allocated from: #0 0x104e92ea4 in malloc+0x6c (librustc-nightly_rt.asan.dylib:arm64+0x4eea4) #1 0x18cdca65c in _fetchInitializingClassList(bool)+0x2c (libobjc.A.dylib:arm64+0xa65c) #2 0x187280018cdca530 (<unknown module>) #3 0x803d80018cdca374 (<unknown module>) #4 0xfa5380018cdca1ec (<unknown module>) #5 0xf91580018cdca1ec (<unknown module>) #6 0x9f0a00018cdca1ec (<unknown module>) #7 0xcd5900018cde7300 (<unknown module>) #8 0x8d1a00018cdc9dc0 (<unknown module>) #9 0x441c00018cdc9760 (<unknown module>) #10 0xda1d00018ceab444 (<unknown module>) #11 0x920580018ceaa800 (<unknown module>) #12 0xe635800199a43678 (<unknown module>) #13 0xad5080018ce31a20 (<unknown module>) #14 0xf14a00018ce77324 (<unknown module>) #15 0x192000018ce6a664 (<unknown module>) #16 0x121780018ce112f8 (<unknown module>) #17 0x120700018ce6969c (<unknown module>) #18 0x9f7f00018ce76e38 (<unknown module>) #19 0xfa3f80018ce2db34 (<unknown module>) #20 0x4f3180018ce37924 (<unknown module>) #21 0xce4d00018ce5335c (<unknown module>) #22 0xe96b00018ce15f9c (<unknown module>) #23 0x525300018ce14ed8 (<unknown module>) #24 0xbc4d7ffffffffffc (<unknown module>) Indirect leak of 32 byte(s) in 1 object(s) allocated from: #0 0x104e9317c in calloc+0x74 (librustc-nightly_rt.asan.dylib:arm64+0x4f17c) #1 0x18cdca6b8 in _fetchInitializingClassList(bool)+0x88 (libobjc.A.dylib:arm64+0xa6b8) #2 0x187280018cdca530 (<unknown module>) #3 0x803d80018cdca374 (<unknown module>) #4 0xfa5380018cdca1ec (<unknown module>) #5 0xf91580018cdca1ec (<unknown module>) #6 0x9f0a00018cdca1ec (<unknown module>) #7 0xcd5900018cde7300 (<unknown module>) #8 0x8d1a00018cdc9dc0 (<unknown module>) #9 0x441c00018cdc9760 (<unknown module>) #10 0xda1d00018ceab444 (<unknown module>) #11 0x920580018ceaa800 (<unknown module>) #12 0xe635800199a43678 (<unknown module>) #13 0xad5080018ce31a20 (<unknown module>) #14 0xf14a00018ce77324 (<unknown module>) #15 0x192000018ce6a664 (<unknown module>) #16 0x121780018ce112f8 (<unknown module>) #17 0x120700018ce6969c (<unknown module>) #18 0x9f7f00018ce76e38 (<unknown module>) #19 0xfa3f80018ce2db34 (<unknown module>) #20 0x4f3180018ce37924 (<unknown module>) #21 0xce4d00018ce5335c (<unknown module>) #22 0xe96b00018ce15f9c (<unknown module>) #23 0x525300018ce14ed8 (<unknown module>) #24 0xbc4d7ffffffffffc (<unknown module>) Indirect leak of 16 byte(s) in 1 object(s) allocated from: #0 0x104e9317c in calloc+0x74 (librustc-nightly_rt.asan.dylib:arm64+0x4f17c) #1 0x18cdca694 in _fetchInitializingClassList(bool)+0x64 (libobjc.A.dylib:arm64+0xa694) #2 0x187280018cdca530 (<unknown module>) #3 0x803d80018cdca374 (<unknown module>) #4 0xfa5380018cdca1ec (<unknown module>) #5 0xf91580018cdca1ec (<unknown module>) #6 0x9f0a00018cdca1ec (<unknown module>) #7 0xcd5900018cde7300 (<unknown module>) #8 0x8d1a00018cdc9dc0 (<unknown module>) #9 0x441c00018cdc9760 (<unknown module>) #10 0xda1d00018ceab444 (<unknown module>) #11 0x920580018ceaa800 (<unknown module>) #12 0xe635800199a43678 (<unknown module>) #13 0xad5080018ce31a20 (<unknown module>) #14 0xf14a00018ce77324 (<unknown module>) #15 0x192000018ce6a664 (<unknown module>) #16 0x121780018ce112f8 (<unknown module>) #17 0x120700018ce6969c (<unknown module>) #18 0x9f7f00018ce76e38 (<unknown module>) #19 0xfa3f80018ce2db34 (<unknown module>) #20 0x4f3180018ce37924 (<unknown module>) #21 0xce4d00018ce5335c (<unknown module>) #22 0xe96b00018ce15f9c (<unknown module>) #23 0x525300018ce14ed8 (<unknown module>) #24 0xbc4d7ffffffffffc (<unknown module>) SUMMARY: AddressSanitizer: 240 byte(s) leaked in 4 allocation(s).