Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Reduce diff to makecontext.

This commit is contained in:
joerg 2009-07-01 16:54:41 +00:00
parent 061a87b549
commit c1faa994fd
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
lib/libc/arch/x86_64/gen/_lwp.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: _lwp.c,v 1.4 2008/04/28 20:22:58 martin Exp $ */
/* $NetBSD: _lwp.c,v 1.5 2009/07/01 16:54:41 joerg Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -31,7 +31,7 @@
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: _lwp.c,v 1.4 2008/04/28 20:22:58 martin Exp $");
__RCSID("$NetBSD: _lwp.c,v 1.5 2009/07/01 16:54:41 joerg Exp $");
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
@ -45,6 +45,7 @@ void
_lwp_makecontext(ucontext_t *u, void (*start)(void *),
void *arg, void *private, caddr_t stack_base, size_t stack_size)
{
__greg_t *gr = u->uc_mcontext.__gregs;
void **sp;
getcontext(u);
@ -54,16 +55,16 @@ _lwp_makecontext(ucontext_t *u, void (*start)(void *),
u->uc_stack.ss_size = stack_size;
/* LINTED uintptr_t is safe */
u->uc_mcontext.__gregs[_REG_RIP] = (uintptr_t)start;
gr[_REG_RIP] = (uintptr_t)start;
sp = (void **) (((uintptr_t)(stack_base + stack_size) & ~15) - 8);
/* LINTED __greg_t is safe */
u->uc_mcontext.__gregs[_REG_RDI] = (__greg_t)arg;
gr[_REG_RDI] = (__greg_t)arg;
*--sp = (void *) _lwp_exit;
/* LINTED uintptr_t is safe */
u->uc_mcontext.__gregs[_REG_URSP] = (uintptr_t) sp;
gr[_REG_URSP] = (uintptr_t) sp;
/* LINTED private is currently unused */
}