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$NetBSD: patch-ad,v 1.1 2002/10/07 11:36:18 skrll Exp $
--- cpudetect.c.orig Mon May 20 02:00:51 2002
+++ cpudetect.c
@@ -13,6 +13,11 @@ CpuCaps gCpuCaps;
#include <stdio.h>
+#ifdef __NetBSD__
+#include <sys/param.h>
+#include <setjmp.h>
+#endif
+
#ifdef __FreeBSD__
#include <sys/types.h>
#include <sys/sysctl.h>
@@ -146,7 +151,7 @@ void GetCpuCaps( CpuCaps *caps)
#endif
/* FIXME: Does SSE2 need more OS support, too? */
-#if defined(__linux__) || defined(__FreeBSD__)
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
if (caps->hasSSE)
check_os_katmai_support();
if (!caps->hasSSE)
@@ -236,6 +241,15 @@ char *GetCpuFriendlyName(unsigned int re
#undef CPUID_STEPPING
+#ifdef __NetBSD__
+jmp_buf sseCheckEnv;
+
+void sseCheckHandler(int i)
+{
+ longjmp(sseCheckEnv, 1);
+}
+#endif
+
#if defined(__linux__) && defined(_POSIX_SOURCE) && defined(X86_FXSR_MAGIC)
static void sigill_handler_sse( int signal, struct sigcontext sc )
{
@@ -292,6 +306,36 @@ static void check_os_katmai_support( voi
if (ret || !has_sse)
gCpuCaps.hasSSE=0;
+#elif defined(__NetBSD__)
+#if __NetBSD_Version__ >= 105260000
+ if ( gCpuCaps.hasSSE ) {
+ void (*oldHandler)(int);
+
+ mp_msg(MSGT_CPUDETECT,MSGL_V, "Testing OS support for SSE... " );
+
+ oldHandler = signal(SIGILL, sseCheckHandler);
+ if (setjmp(sseCheckEnv)) {
+ gCpuCaps.hasSSE = 0;
+ } else {
+ __asm__ __volatile__ (
+ "subl $0x10, %esp \n"
+ "movups %xmm0, (%esp) \n"
+ "emms \n"
+ "addl $0x10, %esp \n"
+ );
+ }
+ signal(SIGILL, oldHandler);
+
+ if ( gCpuCaps.hasSSE ) {
+ mp_msg(MSGT_CPUDETECT,MSGL_V, "no!\n" );
+ } else {
+ mp_msg(MSGT_CPUDETECT,MSGL_V, "yes!\n" );
+ }
+ }
+#else
+ gCpuCaps.hasSSE = 0
+ mp_msg(MSGT_CPUDETECT,MSGL_WARN, "No OS support for SSE, disabling to be safe.\n" );
+#endif
#elif defined(__linux__)
#if defined(_POSIX_SOURCE) && defined(X86_FXSR_MAGIC)
struct sigaction saved_sigill;
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