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	tlibthread: rm unused sparc-ucontext.h - plan9port - [fork] Plan 9 from user sp…
	git clone git://src.adamsgaard.dk/plan9port
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	---
	commit c181e39eeab0eb8cad274b7b22ce5343bd55630d
	parent 52397aaf2b240015533fa46f1767c20f45296465
	Author: Russ Cox <[email protected]>
	Date: Sun, 19 Jan 2020 21:01:30 -0500

	libthread: rm unused sparc-ucontext.h

	More dead code.

	Diffstat:
	D src/libthread/sparc-ucontext.h \| 23 -----------------------
	M src/libthread/threadimpl.h \| 14 --------------

	2 files changed, 0 insertions(+), 37 deletions(-)
	---
	diff --git a/src/libthread/sparc-ucontext.h b/src/libthread/sparc-ucontext.h
	t@@ -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*);
	diff --git a/src/libthread/threadimpl.h b/src/libthread/threadimpl.h
	t@@ -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*);