103 lines
2.5 KiB
Text
103 lines
2.5 KiB
Text
$NetBSD: patch-ax,v 1.1 1998/12/28 22:22:02 bad Exp $
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--- /dev/null Sun Dec 27 17:07:36 1998
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+++ machdep/engine-i386-netbsd-1.3.h Sun Dec 27 17:21:41 1998
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@@ -0,0 +1,98 @@
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+/* ==== machdep.h ============================================================
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+ * Copyright (c) 1993 Chris Provenzano, proven@athena.mit.edu
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+ *
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+ * $Id: patch-ax,v 1.1 1998/12/28 22:22:02 bad Exp $
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+ *
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+ */
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+
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+#include <unistd.h>
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+#include <setjmp.h>
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+#include <sys/time.h>
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+#include <sys/signal.h> /* for _NSIG */
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+
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+/*
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+ * The first machine dependent functions are the SEMAPHORES
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+ * needing the test and set instruction.
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+ */
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+#define SEMAPHORE_CLEAR 0
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+#define SEMAPHORE_SET 1
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+
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+#define SEMAPHORE_TEST_AND_SET(lock) \
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+({ \
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+long temp = SEMAPHORE_SET; \
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+ \
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+__asm__ volatile ("xchgl %0,(%2)" \
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+ :"=r" (temp) \
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+ :"0" (temp),"r" (lock)); \
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+temp; \
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+})
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+
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+#define SEMAPHORE_RESET(lock) *lock = SEMAPHORE_CLEAR
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+
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+/*
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+ * New types
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+ */
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+typedef long semaphore;
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+
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+/*
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+ * sigset_t macros
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+ */
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+#define SIG_ANY(sig) (sig)
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+#define SIGMAX (_NSIG-1)
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+
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+/*
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+ * New Strutures
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+ */
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+struct machdep_pthread {
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+ void *(*start_routine)(void *);
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+ void *start_argument;
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+ void *machdep_stack;
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+ struct itimerval machdep_timer;
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+ jmp_buf machdep_state;
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+ char machdep_float_state[108];
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+};
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+
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+/*
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+ * Static machdep_pthread initialization values.
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+ * For initial thread only.
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+ */
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+#define MACHDEP_PTHREAD_INIT \
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+{ NULL, NULL, NULL, { { 0, 0 }, { 0, 100000 } }, 0 }
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+
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+/*
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+ * Minimum stack size
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+ */
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+#define PTHREAD_STACK_MIN 1024
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+
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+/*
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+ * Some fd flag defines that are necessary to distinguish between posix
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+ * behavior and bsd4.3 behavior.
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+ */
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+#define __FD_NONBLOCK O_NONBLOCK
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+
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+/*
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+ * New functions
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+ */
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+
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+__BEGIN_DECLS
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+
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+#if defined(PTHREAD_KERNEL)
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+
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+#define __machdep_stack_get(x) (x)->machdep_stack
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+#define __machdep_stack_set(x, y) (x)->machdep_stack = y
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+#define __machdep_stack_repl(x, y) \
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+{ \
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+ if (stack = __machdep_stack_get(x)) { \
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+ __machdep_stack_free(stack); \
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+ } \
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+ __machdep_stack_set(x, y); \
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+}
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+
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+void * __machdep_stack_alloc __P_((size_t));
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+void __machdep_stack_free __P_((void *));
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+
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+int machdep_save_state __P_((void));
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+
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+#endif
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+
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+__END_DECLS
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