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* Use the new ALPHA_SET_FP_C sysarch call. 

* Provide an internal sysarch entry point, so that this works
  with statically-linked programs.
This commit is contained in:
thorpej 2002-01-14 01:31:00 +00:00
parent 27a315e2c8
commit 24ca47c4d5
1 changed files with 19 additions and 4 deletions
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23
lib/csu/alpha/crtfm.c
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@ -1,4 +1,4 @@
/* $NetBSD: crtfm.c,v 1.1 2002/01/13 20:05:42 thorpej Exp $ */
/* $NetBSD: crtfm.c,v 1.2 2002/01/14 01:31:00 thorpej Exp $ */
/*
* Copyright (c) 2002 Wasabi Systems, Inc.
@ -40,14 +40,29 @@
*/
#include <sys/types.h>
#include <ieeefp.h>
#include <machine/fpu.h>
#include <machine/sysarch.h>
/*
* Must provide this wrapper around sysarch(2) so that statically-linked
* programs work properly.
*/
extern void __alpha_sysarch(int, void *);
__asm(".ent __alpha_sysarch 0 ;\n"
"__alpha_sysarch: ;\n"
" ldiq $0, 165 ;\n" /* v0 = SYS_sysarch */
" call_pal 0x0083 ;\n" /* PAL_OSF1_callsys */
" ret $31,($26),1 ;\n"
".end __alpha_sysarch");
static void __attribute__((__constructor__))
__alpha_set_fast_math(void)
{
struct alpha_fp_c_args args;
/* XXX NEED INTERNAL NAME FOR fpsetmask()!! */
fpsetmask(IEEE_MAP_DMZ|IEEE_MAP_UMZ);
args.fp_c = IEEE_MAP_DMZ|IEEE_MAP_UMZ;
__alpha_sysarch(ALPHA_SET_FP_C, &args);
}