On Mon, Mar 10, 2003 at 10:22:56AM +0000, Jon Burgess wrote: > > Further no known libc implementation making use of sa_restorer. > > I don't know if this is relevant, but Linus recently tried > changing the sa_restorer behaviour in the linux-2.5 kernel and > later had to back out the change. The following lines are from > recent changelogs: > > http://www.uwsg.iu.edu/hypermail/linux/kernel/0301.1/0344.html > Linux-2.5.55: > Move x86 signal handler return stub to the vsyscall page, and stop > honoring the SA_RESTORER information. > > http://www.uwsg.iu.edu/hypermail/linux/kernel/0301.1/1884.html > Linux-2.5.57: > Re-instate the SA_RESTORER functionality, since it seems that some > programs still depend on it and in fact do install a different > signal restorer than the standard kernel version. Doesn't look relevant to us because installing requires custom assembler code for each architecture or other non-portable constructs. It seems nothing on MIPS was ever actually using sa_restorer or SA_RESTORER. Ralf
