en Copyright 2015 Java http://172.16.0.5:8080/history/llvm-project-15.0.7/compiler-rt/test/ubsan/TestCases/Misc/Linux/diag-stacktrace.cpp#9f526057 [ubsan][test] Unsupport Android for new test diag-stacktrace.cpphttps://reviews.llvm.org/D123562#3446485 reported that the test failedon arm-linux-android. List of files: /llvm-project-15.0.7/compiler-rt/test/ubsan/TestCases/Misc/Linux/diag-stacktrace.cpp Tue, 12 Apr 2022 19:55:43 +0000 Fangrui Song <i@maskray.me> http://172.16.0.5:8080/history/llvm-project-15.0.7/compiler-rt/test/ubsan/TestCases/Misc/Linux/diag-stacktrace.cpp#fdd424e3 [ubsan] Fix print_stacktrace=1:fast_unwind_on_fatal=0 to correctly fallback to fast unwinderubsan_GetStackTrace (from 52b751088b11547e0f4ef0589ebbe5e57752c68c) called by~ScopeReport leaves top/bottom zeroes in the`!WillUseFastUnwind(request_fast_unwind)` code path.When BufferedStackTrace::Unwind falls back to UnwindFast,`if (stack_top < 4096) return;` will return early, leaving just one frame in the stack trace.Fix this by always initializing top/bottom like 261d6e05d5574bec753ea6b7e9a7f99229927753.Reviewed By: eugenis, ylnDifferential Revision: https://reviews.llvm.org/D123562 List of files: /llvm-project-15.0.7/compiler-rt/test/ubsan/TestCases/Misc/Linux/diag-stacktrace.cpp Tue, 12 Apr 2022 18:24:19 +0000 Fangrui Song <i@maskray.me>