commit c181e39eeab0eb8cad274b7b22ce5343bd55630d
from: Russ Cox <rsc@swtch.com>
date: Mon Jan 20 02:26:30 2020 UTC

libthread: rm unused sparc-ucontext.h

More dead code.

commit - 52397aaf2b240015533fa46f1767c20f45296465
commit + c181e39eeab0eb8cad274b7b22ce5343bd55630d
blob - 36b8817103a0d70a1a9a9cf7d9a186c06e5d0b95 (mode 644)
blob + /dev/null
--- src/libthread/sparc-ucontext.h
+++ /dev/null
@@ -1,23 +0,0 @@
-#define	setcontext(u)	_setmcontext(&(u)->mc)
-#define	getcontext(u)	_getmcontext(&(u)->mc)
-typedef struct mcontext mcontext_t;
-typedef struct ucontext ucontext_t;
-struct mcontext
-{
-	int	r[16];
-};
-
-struct ucontext
-{
-	struct {
-		void *ss_sp;
-		uint ss_size;
-	} uc_stack;
-	sigset_t uc_sigmask;
-	mcontext_t mc;
-};
-
-void makecontext(ucontext_t*, void(*)(void), int, ...);
-int swapcontext(ucontext_t*, ucontext_t*);
-int _getmcontext(mcontext_t*);
-void _setmcontext(mcontext_t*);
blob - e26ffe6b3a4f6909788bed915d43c89b41de5083
blob + 5b6d74cc84ba42dbb6accb5d3310c98857b59805
--- src/libthread/threadimpl.h
+++ src/libthread/threadimpl.h
@@ -55,20 +55,6 @@
 extern pid_t rfork_thread(int, void*, int(*)(void*), void*);
 #endif
 
-/* THIS DOES NOT WORK!  Don't do this!
-(At least, not on Solaris.  Maybe this is right for Linux,
-in which case it should say if defined(__linux__) && defined(__sun__),
-but surely the latter would be defined(__sparc__).
-
-#if defined(__sun__)
-#	define mcontext libthread_mcontext
-#	define mcontext_t libthread_mcontext_t
-#	define ucontext libthread_ucontext
-#	define ucontext_t libthread_ucontext_t
-#	include "sparc-ucontext.h"
-#endif
-*/
-
 #if defined(__arm__)
 int mygetmcontext(ulong*);
 void mysetmcontext(const ulong*);