Registers _REG_Ri defines are numbered backwards, so when we fill

r4-r7 with arguments, use the correct *minus* i to compute the i-th
register index.
This commit is contained in:
uwe 2003-06-23 10:45:20 +00:00
parent fe803a4b84
commit 439470c9f0
1 changed files with 3 additions and 3 deletions

View File

@ -1,4 +1,4 @@
/* $NetBSD: makecontext.c,v 1.2 2003/01/18 11:14:00 thorpej Exp $ */
/* $NetBSD: makecontext.c,v 1.3 2003/06/23 10:45:20 uwe Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -38,7 +38,7 @@
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: makecontext.c,v 1.2 2003/01/18 11:14:00 thorpej Exp $");
__RCSID("$NetBSD: makecontext.c,v 1.3 2003/06/23 10:45:20 uwe Exp $");
#endif
#include <stddef.h>
@ -70,7 +70,7 @@ makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
va_start(ap, argc);
/* Pass up to four arguments in r4-7. */
for (i = 0; i < argc && i < 4; i++)
gr[_REG_R4 + i] = va_arg(ap, int);
gr[_REG_R4 - i] = va_arg(ap, int); /* sic! see mcontext.h */
/* Pass any additional arguments on the stack. */
for (argc -= i; argc > 0; argc--)
*sp++ = va_arg(ap, int);