* sysdeps/i386/fpu/s_frexp.S: Check bounds.

* sysdeps/i386/fpu/s_frexp.S: Check bounds.

Wrap extern symbols in BP_SYM ().
* sysdeps/i386/fpu/s_frexpf.S: Likewise.
* sysdeps/i386/fpu/s_frexpl.S: Likewise.
* sysdeps/i386/fpu/s_remquo.S: Likewise.
* sysdeps/i386/fpu/s_remquof.S: Likewise.
* sysdeps/i386/fpu/s_remquol.S: Likewise.
* sysdeps/i386/fpu/s_sincos.S: Likewise.
* sysdeps/i386/fpu/s_sincosf.S: Likewise.
* sysdeps/i386/fpu/s_sincosl.S: Likewise.
* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
* sysdeps/unix/sysv/linux/i386/mmap64.S: Likewise.