From 18571208068d5fe2f0bf7b4e980525a7f577c503 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@swtch.com>
Date: Wed, 30 Dec 2020 07:18:30 -0500
Subject: libthread: simplify

Now that everything uses pthreads and pthreadperthread,
can delete various conditionals, all the custom context code,
and so on. Also update documents.

Fixes #355.
---
 src/libthread/x86_64-ucontext.h | 42 -----------------------------------------
 1 file changed, 42 deletions(-)
 delete mode 100644 src/libthread/x86_64-ucontext.h

(limited to 'src/libthread/x86_64-ucontext.h')

diff --git a/src/libthread/x86_64-ucontext.h b/src/libthread/x86_64-ucontext.h
deleted file mode 100644
index e0640761..00000000
--- a/src/libthread/x86_64-ucontext.h
+++ /dev/null
@@ -1,42 +0,0 @@
-#define	setcontext(u)	libthread_setmcontext(&(u)->mc)
-#define	getcontext(u)	libthread_getmcontext(&(u)->mc)
-typedef struct mcontext mcontext_t;
-typedef struct ucontext ucontext_t;
-
-struct mcontext
-{
-	uintptr	ax;
-	uintptr	bx;
-	uintptr cx;
-	uintptr dx;
-	uintptr si;
-	uintptr di;
-	uintptr	bp;
-	uintptr sp;
-	uintptr r8;
-	uintptr r9;
-	uintptr r10;
-	uintptr r11;
-	uintptr r12;
-	uintptr r13;
-	uintptr r14;
-	uintptr r15;
-/*
-// XXX: currently do not save vector registers or floating-point state
-*/
-};
-
-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 libthread_getmcontext(mcontext_t*);
-void libthread_setmcontext(mcontext_t*);
-- 
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