114 lines
3.2 KiB
Text
114 lines
3.2 KiB
Text
$NetBSD: patch-cg,v 1.1 2001/01/10 01:28:51 briggs Exp $
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--- /dev/null Tue Jan 9 17:03:11 2001
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+++ machdep/engine-powerpc-netbsd.h Tue Jan 9 16:54:05 2001
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@@ -0,0 +1,109 @@
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+/* ==== machdep.h ============================================================
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+ * Copyright (c) 1994 Chris Provenzano (proven@athena.mit.edu) and
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+ * Ken Raeburn (raeburn@mit.edu).
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+ *
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+ * engine-alpha-osf1.h,v 1.4.4.1 1995/12/13 05:41:42 proven 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/cdefs.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 0xffff
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+
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+#define SEMAPHORE_TEST_AND_SET(lock) \
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+({ \
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+ volatile long t1, temp = SEMAPHORE_SET; \
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+ __asm__ volatile( \
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+ "1: lwarx %0,0,%1; \
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+ cmpwi %0, 0; \
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+ bne 2f; \
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+ stwcx. %2,0,%1; \
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+ bne- 1b; \
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+ 2: " \
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+ :"=r" (t1) \
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+ :"m" (lock), "r" (temp)); \
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+ t1; \
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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 int 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_istate;
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+ unsigned long machdep_fstate[66];
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+ /* 64-bit fp regs 0-31 + fpscr */
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+ /* We pretend the fpscr is 64 bits */
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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 }, { 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 2048
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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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+int machdep_save_state(void);
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+
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+void __machdep_save_fp_state(unsigned long *);
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+void __machdep_restore_fp_state(unsigned long *);
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+void *__machdep_stack_alloc(size_t);
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+void __machdep_stack_free(void *);
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+
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+#endif
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+
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+__END_DECLS
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