How to stop --gc-sections nukeing all sections?

[Ian Lance Taylor]

   Date: Fri, 7 Apr 2000 12:07:53 +1000 (EST)
   From: greyham@research.canon.com.au (Graham Stoney)


   The kernel uses a nasty ha^H^H^H^H^H^H^H^Hneat trick to trap bad user space
   accesses. This relies on incrementally building up two tables containing
   references to instructions which attempt user space accesses, in sections
   named .fixup and __ex_table sections. These tables must be ordered in the same
   order as the code they refer to, because a binary search is done on the
   __ex_table and this search requires that the entries are in ascending order.

Geeze, can't we do this in a way which doesn't rely on undocumented
linker features?  C++ exception handling manages to solve a similar
problem without a similar drawback.

Ian