freebsd

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Konstantin Belousov 7332c129e0 Add support for executing the FreeBSD 1/i386 a.out binaries on amd64.

In particular:
- implement compat shims for old stat(2) variants and ogetdirentries(2);
- implement delivery of signals with ancient stack frame layout and
  corresponding sigreturn(2);
- implement old getpagesize(2);
- provide a user-mode trampoline and LDT call gate for lcall $7,$0;
- port a.out image activator and connect it to the build as a module
  on amd64.

The changes are hidden under COMPAT_43.

MFC after:   1 month

2011-04-01 11:16:29 +00:00

freebsd32

Add support for executing the FreeBSD 1/i386 a.out binaries on amd64.

2011-04-01 11:16:29 +00:00

ia32

Add support for executing the FreeBSD 1/i386 a.out binaries on amd64.

2011-04-01 11:16:29 +00:00

linprocfs

Fix some locking nits with the p_state field of struct proc:

2011-03-24 18:40:11 +00:00

linsysfs

Remove no-op assignment.