[Bug c++/79823] New: Address Sanitize compile,got undefined reference to '__asan' errors

[zhoujun48 at huawei dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79823

            Bug ID: 79823
           Summary: Address Sanitize compile,got undefined reference to
                    '__asan' errors
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zhoujun48 at huawei dot com
  Target Milestone: ---

Address Sanitize,Complie C++ code,GCC
4.9.0(gcc\linux-x86\aarch64\aarch64-linux-android-4.9-kasan),
CFLAGS= -lasan -fsanitize=address,
but get this error：
system/sepolicy/tools/fc_sort/fc_sort.c:49: error: undefined reference to
'__asan_report_load8'
system/sepolicy/tools/fc_sort/fc_sort.c:50: error: undefined reference to
'__asan_report_load8'
system/sepolicy/tools/fc_sort/fc_sort.c:51: error: undefined reference to
'__asan_report_load8'
system/sepolicy/tools/fc_sort/fc_sort.c:91: error: undefined reference to
'__asan_report_load1'

I have already used -lasan,
how to judge to asan lib exist in this gcc tool chain?
who can help me solve this problem
thank u