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$NetBSD: patch-ai,v 1.3 2001/01/10 06:03:15 briggs Exp $
*** /dev/null Wed Dec 31 19:00:00 1969
--- mit-pthreads/machdep/engine-powerpc-netbsd.h Tue Jan 9 22:35:36 2001
***************
*** 0 ****
--- 1,109 ----
+ /* ==== machdep.h ============================================================
+ * Copyright (c) 1994 Chris Provenzano (proven@athena.mit.edu) and
+ * Ken Raeburn (raeburn@mit.edu).
+ *
+ * engine-alpha-osf1.h,v 1.4.4.1 1995/12/13 05:41:42 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 0xffff
+
+ #define SEMAPHORE_TEST_AND_SET(lock) \
+ ({ \
+ volatile long t1, temp = SEMAPHORE_SET; \
+ __asm__ volatile( \
+ "1: lwarx %0,0,%1; \
+ cmpwi %0, 0; \
+ bne 2f; \
+ stwcx. %2,0,%1; \
+ bne- 1b; \
+ 2: " \
+ :"=r" (t1) \
+ :"m" (lock), "r" (temp)); \
+ t1; \
+ })
+
+ #define SEMAPHORE_RESET(lock) *lock = SEMAPHORE_CLEAR
+
+ /*
+ * New types
+ */
+ typedef int 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_istate;
+ unsigned long machdep_fstate[66];
+ /* 64-bit fp regs 0-31 + fpscr */
+ /* We pretend the fpscr is 64 bits */
+ };
+
+ /*
+ * Static machdep_pthread initialization values.
+ * For initial thread only.
+ */
+ #define MACHDEP_PTHREAD_INIT \
+ { NULL, NULL, NULL, { { 0, 0 }, { 0, 100000 } }, { 0 }, { 0 } }
+
+ /*
+ * Minimum stack size
+ */
+ #define PTHREAD_STACK_MIN 2048
+
+ /*
+ * Some fd flag defines that are necessary to distinguish between posix
+ * behavior and bsd4.3 behavior.
+ */
+ #define __FD_NONBLOCK O_NONBLOCK
+
+ /*
+ * 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); \
+ }
+
+ int machdep_save_state(void);
+
+ void __machdep_save_fp_state(unsigned long *);
+ void __machdep_restore_fp_state(unsigned long *);
+ void *__machdep_stack_alloc(size_t);
+ void __machdep_stack_free(void *);
+
+ #endif
+
+ __END_DECLS
|
