tree fc96c7ddee6fa82655ada03f9f0ba2e9badf3d32
parent c658eac628aa8df040dfe614556d95e6da3a9ffb
author Chris Zankel <chris@zankel.net> 1200080657 -0800
committer Chris Zankel <chris@zankel.net> 1202953351 -0800

[XTENSA] Add support for the sa_restorer function

Supporting the sa_restorer function allows for better security
since the sigreturn system call doesn't need to be placed on
the stack, so the stack doesn't need to be executable. This
requires support from the c-library as it has to provide the
restorer function.

Signed-off-by: Chris Zankel <chris@zankel.net>