Author: Rainer Orth Date: 2024-08-04T11:21:07+02:00 New Revision: 2213bdeb0077d6e89344950568bb321fdef50a86
URL: https://github.com/llvm/llvm-project/commit/2213bdeb0077d6e89344950568bb321fdef50a86 DIFF: https://github.com/llvm/llvm-project/commit/2213bdeb0077d6e89344950568bb321fdef50a86.diff LOG: [sanitizer_common] Fix signal_line.cpp on SPARC (#100535) ``` SanitizerCommon-ubsan-sparc-Linux :: Linux/signal_line.cpp ``` currently `FAIL`s on Linux/sparc64 (32 and 64-bit) for `n == 2`. Instead of the expected `SIGSEGV`, the test dies with `SIGBUS`. `strace` reveals that this is due to a unaligned access: ``` --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRALN, si_addr=0x1} --- ``` which is to be expected on a strict-alignment target like SPARC. Fixed by changing the invalid pointer to be better aligned. Tested on `sparc64-unknown-linux-gnu` and `x86_64-pc-linux-gnu`. (cherry picked from commit 94394ca980f8ecbd845155d2170cfd865e4d62dc) Added: Modified: compiler-rt/test/sanitizer_common/TestCases/Linux/signal_line.cpp Removed: ################################################################################ diff --git a/compiler-rt/test/sanitizer_common/TestCases/Linux/signal_line.cpp b/compiler-rt/test/sanitizer_common/TestCases/Linux/signal_line.cpp index 208ece3e05af4..f1afd859c207a 100644 --- a/compiler-rt/test/sanitizer_common/TestCases/Linux/signal_line.cpp +++ b/compiler-rt/test/sanitizer_common/TestCases/Linux/signal_line.cpp @@ -20,7 +20,8 @@ int main(int argc, char **argv) { // CHECK1: SUMMARY: [[SAN]]: SEGV {{.*}}signal_line.cpp:[[@LINE-2]]:[[TAB]] in main if (n == 2) - *((volatile int *)0x1) = __LINE__; + // Allow for strict-alignment targets that require natural alignment. + *((volatile int *)0x8) = __LINE__; // CHECK2: #{{[0-9]+ .*}}main {{.*}}signal_line.cpp:[[@LINE-1]]:[[TAB:[0-9]+]] // CHECK2: SUMMARY: [[SAN]]: SEGV {{.*}}signal_line.cpp:[[@LINE-2]]:[[TAB]] in main } _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
