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$NetBSD: patch-as,v 1.1 1998/12/28 22:22:01 bad Exp $
--- /dev/null Thu Oct 22 03:18:30 1998
+++ machdep/engine-sparc-netbsd-1.3.h Thu Oct 22 18:29:44 1998
@@ -0,0 +1,106 @@
+/* ==== machdep.h ============================================================
+ * Copyright (c) 1994 Chris Provenzano, proven@athena.mit.edu
+ *
+ * engine-sparc-sunos-4.1.3.h,v 1.52.4.1 1995/12/13 05:42:33 proven Exp
+ *
+ */
+
+#include <unistd.h>
+#include <setjmp.h>
+#include <sys/time.h>
+#include <sys/cdefs.h>
+#include <sys/signal.h> /* for _NSIG */
+
+/*
+ * The first machine dependent functions are the SEMAPHORES
+ * needing the test and set instruction.
+ */
+#define SEMAPHORE_CLEAR 0
+#define SEMAPHORE_SET 0xff
+
+#define SEMAPHORE_TEST_AND_SET(lock) \
+({ \
+char *p = lock; \
+long temp; \
+ \
+__asm__ volatile("ldstub %1,%0" \
+ :"=r" (temp) \
+ :"m" (*p) \
+ :"memory"); \
+temp; \
+})
+
+#define SEMAPHORE_RESET(lock) \
+{ \
+__asm__ volatile("stb %1, %0" \
+ :"=m" (*lock) \
+ :"r" (SEMAPHORE_CLEAR) \
+ :"memory"); \
+}
+
+/*
+ * New types
+ */
+typedef char semaphore;
+
+/*
+ * sigset_t macros
+ */
+#define SIG_ANY(sig) (sig)
+#define SIGMAX (_NSIG-1)
+
+/*
+ * New Strutures
+ */
+struct machdep_pthread {
+ void *(*start_routine)(void *);
+ void *start_argument;
+ void *machdep_stack;
+ struct itimerval machdep_timer;
+ jmp_buf machdep_state;
+};
+
+/*
+ * Static machdep_pthread initialization values.
+ * For initial thread only.
+ */
+#define MACHDEP_PTHREAD_INIT \
+{ NULL, NULL, NULL, { { 0, 0 }, { 0, 100000 } }, 0 }
+
+/*
+ * Minimum stack size
+ */
+#define PTHREAD_STACK_MIN 1024
+
+/*
+ * Some fd flag defines that are necessary to distinguish between posix
+ * behavior and bsd4.3 behavior.
+ */
+#define __FD_NONBLOCK (O_NONBLOCK | O_NDELAY)
+
+/*
+ * New functions
+ */
+
+__BEGIN_DECLS
+
+#if defined(PTHREAD_KERNEL)
+
+#define __machdep_stack_get(x) (x)->machdep_stack
+#define __machdep_stack_set(x, y) (x)->machdep_stack = y
+#define __machdep_stack_repl(x, y) \
+{ \
+ if (stack = __machdep_stack_get(x)) { \
+ __machdep_stack_free(stack); \
+ } \
+ __machdep_stack_set(x, y); \
+}
+
+void * __machdep_stack_alloc __P_((size_t));
+void __machdep_stack_free __P_((void *));
+
+int machdep_save_state __P_((void));
+
+#endif
+
+__END_DECLS
|
