[compiler-rt] 400389d - Initialize sigset in asan_interceptors (#69502)

[via llvm-commits]

Author: Ivan Tadeu Ferreira Antunes Filho
Date: 2023-10-18T13:01:36-07:00
New Revision: 400389db7de3aac4cd56c95789014aa9206e376b

URL: https://github.com/llvm/llvm-project/commit/400389db7de3aac4cd56c95789014aa9206e376b
DIFF: https://github.com/llvm/llvm-project/commit/400389db7de3aac4cd56c95789014aa9206e376b.diff

LOG: Initialize sigset in asan_interceptors (#69502)

When compiling for Darwin, sigset is not initialized. 

When -Werror,-Wuninitialized-const-reference are enabled we see the
error:
asan_interceptors.cpp:260:38: error: variable 'sigset' is uninitialized
when passed as a const reference argument here
[-Werror,-Wuninitialized-const-reference]

This fixes the error

Added: 
    

Modified: 
    compiler-rt/lib/asan/asan_interceptors.cpp

Removed: 
    


################################################################################
diff  --git a/compiler-rt/lib/asan/asan_interceptors.cpp b/compiler-rt/lib/asan/asan_interceptors.cpp
index fc7c5b7b8fbfade..876682c3b6b3a35 100644
--- a/compiler-rt/lib/asan/asan_interceptors.cpp
+++ b/compiler-rt/lib/asan/asan_interceptors.cpp
@@ -251,7 +251,7 @@ INTERCEPTOR(int, pthread_create, void *thread, void *attr,
 
   u32 current_tid = GetCurrentTidOrInvalid();
 
-  __sanitizer_sigset_t sigset;
+  __sanitizer_sigset_t sigset = {};
 #    if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD || \
         SANITIZER_SOLARIS
   ScopedBlockSignals block(&sigset);