* Gabriel Krisman Bertazi:
The main use case is to intercept Windows system calls of an application running over Wine. While Wine is using an unmodified glibc to execute its own native Linux syscalls, the Windows libraries might be directly issuing syscalls that we need to capture. So there is a mix. While this mechanism is compatible with existing libc, we might have other libraries executing a syscall instruction directly.
Please raise this on libc-alpha, it's an unexpected compatibility constraint on glibc. Thanks.