sigset_t change (part 3 of 5)

-----------------------------

By introducing a new sigframe so that the signal handler operates
on the new siginfo_t and on ucontext_t instead of sigcontext, we
now need two version of sendsig and sigreturn.

A flag in struct proc determines whether the process expects an
old sigframe or a new sigframe. The signal trampoline handles
which sigreturn to call. It does this by testing for a magic
cookie in the frame.

The alpha uses osigreturn to implement longjmp. This means that
osigreturn is not only used for compatibility with existing
binaries. To handle the new sigset_t, setjmp saves it in
sc_reserved (see NOTE).

the struct sigframe has been moved from frame.h to sigframe.h
to handle the complex header dependencies that was caused by
the new sigframe.

NOTE: For the i386, the size of jmp_buf has been increased to hold
      the new sigset_t. On the alpha this has been prevented by
      using sc_reserved in sigcontext.

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/i386/include/db_machdep.h b/sys/i386/include/db_machdep.h
index d5022d8..719c556 100644
--- a/sys/i386/include/db_machdep.h
+++ b/sys/i386/include/db_machdep.h
@@ -30,6 +30,7 @@
 #define	_MACHINE_DB_MACHDEP_H_
 
 #include <machine/frame.h>
+#include <machine/trap.h>
 #include <machine/psl.h>
 
 #define i386_saved_state trapframe