* signal.cc (_raise): New function.

* exceptions.cc (unused_sig_wrapper): Remove _raise.
* sigproc.h (class sigframe): Default frames to skip to zero or suffer from
exuberant optimization.
* fhandler_tty.cc (fhandler_tty::write): Set appropriate errno when WriteFile
to pipe fails.

winsup/cygwin/exceptions.cc

@@ -1074,18 +1074,6 @@ void unused_sig_wrapper ()
    and returns to orignal caller. */
 __asm__ volatile ("
 	.text
-	.globl	__raise
-__raise:
-	pushl	%%ebp
-	movl	%%esp,%%ebp
-	movl	8(%%ebp),%%eax
-	pushl	%%eax
-	movl	$_myself,%%eax
-	pushl	%6(%%eax)
-	call	__kill
-	mov	%%ebp,%%esp
-	popl	%%ebp
-	ret
 
 _sigreturn:
 	addl	$4,%%esp