branch-4.1: [fix](be ut) Skip custom memcpy on ARM+ASAN to fix segfault at process startup #63656 (#63942)

Cherry-picked from #63656

Co-authored-by: heguanhui <hgh_wy163mail@163.com>
Co-authored-by: root <root@DESKTOP-3AF37B>

Author: 3 people

be/src/glibc-compatibility/CMakeLists.txt

@@ -59,7 +59,16 @@ if (GLIBC_COMPATIBILITY)
     list(REMOVE_ITEM glibc_compatibility_sources musl/getrandom.c)
     # NOTE(amos): sanitizers might generate memcpy references that are too late to
     # refer. Let's also extract memcpy definitions explicitly to avoid UNDEF GLIBC 2.14.
-    add_library(glibc-compatibility-explicit OBJECT musl/getrandom.c ${MEMCPY_SOURCE})
+    #
+    # NOTE: On ARM (aarch64) with ASAN, the custom memcpy (memcpy_aarch64.cpp) overrides
+    # the global memcpy symbol. libpthread's __pthread_initialize_minimal() calls memcpy
+    # before ASAN shadow memory is initialized, causing SIGSEGV. Skip custom memcpy in
+    # this case and fall back to glibc's memcpy.
+    if (ARCH_ARM AND (CMAKE_BUILD_TYPE STREQUAL "ASAN_UT" OR CMAKE_BUILD_TYPE STREQUAL "ASAN"))
+        add_library(glibc-compatibility-explicit OBJECT musl/getrandom.c)
+    else()
+        add_library(glibc-compatibility-explicit OBJECT musl/getrandom.c ${MEMCPY_SOURCE})
+    endif()
     target_compile_options(glibc-compatibility-explicit PRIVATE -fPIC)
     add_library(glibc-compatibility STATIC ${glibc_compatibility_sources})
     target_compile_options(