* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h (SINGLE_THREAD_P_PIC): Use "reg" instead of "lr".
(UNDOARGS_5): Fix ordering of pushes and pops. (SINGLE_THREAD_P_PIC): New. (SINGLE_THREAD_P_INT): Likewise. (SINGLE_THREAD_P): Implement in terms of above. Restore lr if it was stacked. (PSEUDO): Use SINGLE_THREAD_P_INT.