Change Details

This reverts d53cb6ffcf6fddc63c399fb2ea4620e682597b38. It emulated pre glibc-2.2 behavior which was non-conforming. The non-compliant behavior provoked https://reviews.llvm.org/D4418 (https://docs.freebsd.org/cgi/getmsg.cgi?fetch=16483939+0+archive/2014/freebsd-current/20140716.freebsd-current) which made some sanitizer tests fail. For example, in a `-fsanitize={address,memory,...}` build, libc functions like malloc/free/strtol/... cannot be provided by user object files.

This reverts d53cb6ffcf6fddc63c399fb2ea4620e682597b38. It emulated pre glibc-2.2 behavior which was non-conforming. The non-compliant behavior provoked https://reviews.llvm.org/D4418 which was intended to fix -shared-libasan (sanitizer interceptors were STB_GLOBAL instead of STB_WEAK, so defining a second STB_GLOBAL interceptor can lead to a multiple definition linker error. For example, in a `-fsanitize={address,memory,...}` build, libc functions like malloc/free/strtol/... cannot be provided by user object files. ) See https://docs.freebsd.org/cgi/getmsg.cgi?fetch=16483939+0+archive/2014/freebsd-current/20140716.freebsd-current for discussions.

This reverts d53cb6ffcf6fddc63c399fb2ea4620e682597b38. It emulated pre glibc-2.2 behavior which was non-conforming. The non-compliant behavior provoked https://reviews.llvm.org/D4418 which was intended to fix (https://docs.freebsd.org/cgi/getmsg.cgi?fetch=16483939+0+archive/2014/freebsd-current/20140716.freebsd-current)-shared-libasan which made some sanitizer tests fail. For example(sanitizer interceptors were STB_GLOBAL instead of STB_WEAK, in aso defining a second STB_GLOBAL interceptor can lead to a multiple definition linker error. For example, in a `-fsanitize={address,memory,...}` build, libc functions like malloc/free/strtol/... cannot be provided by user object files. ) See https://docs.freebsd.org/cgi/getmsg.cgi?fetch=16483939+0+archive/2014/freebsd-current/20140716.freebsd-current for discussions.