[release/6.0-preview5] [build] Define NO_UNALIGNED_ACCESS for 32-bit arm platforms #52942
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Possibly related to crashes on Android like this: ``` 05-18 10:59:07.466 17076 17076 F libc : Fatal signal 7 (SIGBUS), code 1 (BUS_ADRALN), fault addr 0xb9c95a41 in tid 17076 (simplehellomaui), pid 17076 (simplehellomaui) 05-18 10:59:07.501 17104 17104 I crash_dump32: obtaining output fd from tombstoned, type: kDebuggerdTombstone 05-18 10:59:07.502 989 989 I tombstoned: received crash request for pid 17076 05-18 10:59:07.503 17104 17104 I crash_dump32: performing dump of process 17076 (target tid = 17076) 05-18 10:59:07.512 17104 17104 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 05-18 10:59:07.512 17104 17104 F DEBUG : Build fingerprint: 'google/crosshatch/crosshatch:11/RQ2A.210405.005/7181113:user/release-keys' 05-18 10:59:07.512 17104 17104 F DEBUG : Revision: 'MP1.0' 05-18 10:59:07.512 17104 17104 F DEBUG : ABI: 'arm' 05-18 10:59:07.515 17104 17104 F DEBUG : Timestamp: 2021-05-18 10:59:07+0200 05-18 10:59:07.515 17104 17104 F DEBUG : pid: 17076, tid: 17076, name: simplehellomaui >>> com.microsoft.simplehellomaui <<< 05-18 10:59:07.515 17104 17104 F DEBUG : uid: 10364 05-18 10:59:07.515 17104 17104 F DEBUG : signal 7 (SIGBUS), code 1 (BUS_ADRALN), fault addr 0xb9c95a41 05-18 10:59:07.515 17104 17104 F DEBUG : r0 bb4a5cd0 r1 b9c95a49 r2 00000000 r3 e94c7520 05-18 10:59:07.515 17104 17104 F DEBUG : r4 0000000c r5 00000000 r6 ff843c50 r7 ff843e70 05-18 10:59:07.515 17104 17104 F DEBUG : r8 b69547f8 r9 e99eac50 r10 00000000 r11 00000021 05-18 10:59:07.515 17104 17104 F DEBUG : ip e94c74f0 sp ff843c48 lr bb31e0dd pc bb3a4d24 05-18 10:59:07.531 709 709 E Layer : [Surface(name=Task=1)/@0x52e6b1a - animation-leash#0] No local sync point found 05-18 10:59:07.532 709 709 E Layer : [Surface(name=Task=1571)/@0x9c90165 - animation-leash#0] No local sync point found 05-18 10:59:07.706 17104 17104 F DEBUG : backtrace: 05-18 10:59:07.707 17104 17104 F DEBUG : #00 pc 000ddd24 /data/app/~~J4DFQ3c1v2YGrEurX7TNjg==/com.microsoft.simplehellomaui-_jGGPiZpZ3yT-QCTNDcgvQ==/lib/arm/libmonosgen-2.0.so (mono_method_to_ir+9232) (BuildId: d0a4e41a500357a621884b64f6ca8533b62a664b) 05-18 10:59:07.707 17104 17104 F DEBUG : #1 pc 000d7777 /data/app/~~J4DFQ3c1v2YGrEurX7TNjg==/com.microsoft.simplehellomaui-_jGGPiZpZ3yT-QCTNDcgvQ==/lib/arm/libmonosgen-2.0.so (inline_method+622) (BuildId: d0a4e41a500357a621884b64f6ca8533b62a664b) 05-18 10:59:07.707 17104 17104 F DEBUG : #2 pc 000ec0a3 /data/app/~~J4DFQ3c1v2YGrEurX7TNjg==/com.microsoft.simplehellomaui-_jGGPiZpZ3yT-QCTNDcgvQ==/lib/arm/libmonosgen-2.0.so (mono_method_to_ir+67470) (BuildId: d0a4e41a500357a621884b64f6ca8533b62a664b) 05-18 10:59:07.707 17104 17104 F DEBUG : #3 pc 000cda6d /data/app/~~J4DFQ3c1v2YGrEurX7TNjg==/com.microsoft.simplehellomaui-_jGGPiZpZ3yT-QCTNDcgvQ==/lib/arm/libmonosgen-2.0.so (mini_method_compile+2264) (BuildId: d0a4e41a500357a621884b64f6ca8533b62a664b) 05-18 10:59:07.707 17104 17104 F DEBUG : #4 pc 000cf413 /data/app/~~J4DFQ3c1v2YGrEurX7TNjg==/com.microsoft.simplehellomaui-_jGGPiZpZ3yT-QCTNDcgvQ==/lib/arm/libmonosgen-2.0.so (mono_jit_compile_method_inner+50) (BuildId: d0a4e41a500357a621884b64f6ca8533b62a664b) 05-18 10:59:07.707 17104 17104 F DEBUG : #5 pc 000d1d7f /data/app/~~J4DFQ3c1v2YGrEurX7TNjg==/com.microsoft.simplehellomaui-_jGGPiZpZ3yT-QCTNDcgvQ==/lib/arm/libmonosgen-2.0.so (mono_jit_compile_method_with_opt+1766) (BuildId: d0a4e41a500357a621884b64f6ca8533b62a664b) 05-18 10:59:07.707 17104 17104 F DEBUG : #6 pc 0012d94d /data/app/~~J4DFQ3c1v2YGrEurX7TNjg==/com.microsoft.simplehellomaui-_jGGPiZpZ3yT-QCTNDcgvQ==/lib/arm/libmonosgen-2.0.so (common_call_trampoline+832) (BuildId: d0a4e41a500357a621884b64f6ca8533b62a664b) 05-18 10:59:07.707 17104 17104 F DEBUG : #7 pc 0012d5cb /data/app/~~J4DFQ3c1v2YGrEurX7TNjg==/com.microsoft.simplehellomaui-_jGGPiZpZ3yT-QCTNDcgvQ==/lib/arm/libmonosgen-2.0.so (mono_magic_trampoline+62) (BuildId: d0a4e41a500357a621884b64f6ca8533b62a664b) 05-18 10:59:07.707 17104 17104 F DEBUG : #8 pc 0000006a <anonymous:b7986000> ```
lambdageek
approved these changes
Jun 1, 2021
akoeplinger
approved these changes
Jun 1, 2021
|
This was approved by Steve Carroll via email. |
akoeplinger
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ghost
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Backport of #52915 to release/6.0-preview5
/cc @akoeplinger @lambdageek
Customer Impact
Fixes runtime crashes on Android arm32.
Testing
Manual testing
Risk
Low, just adds code that was there in mono/mono already.