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authorUlrich Drepper <drepper@redhat.com>2007-07-28 20:16:07 +0000
committerUlrich Drepper <drepper@redhat.com>2007-07-28 20:16:07 +0000
commit085a44122074e67d56dca0c4f88f01d450ae82ad (patch)
tree51042f8853e47a41e4bb5f220587e7a70b8ca406 /nptl/sysdeps/unix/sysv/linux/sh
parentae1ad762f0687afb37761085cb6e83305afe4521 (diff)
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* iconvdata/gbk.c (BODY): Make buf and cp char instead of unsigned
	char array resp. pointer.
	* iconvdata/iso-2022-kr.c (BODY): Make buf unsigned char instead of
	char array.
	* iconvdata/cns11643.h (cns11643_to_ucs4): Change first argument
	to const unsigned char **.
	(ucs4_to_cns11643): Change second argument to unsigned char *.
	* iconvdata/euc-tw.c (BODY): Change endp type to
	const unsigned char *.
	* iconvdata/iso-ir-165.h (ucs4_to_isoir165): Change second argument
	to unsigned char *.
	* iconvdata/ibm1008_420.c (LOOP_NEED_FLAGS): Don't define.
	* iconvdata/iso-2022-cn.c (BODY): Change buf to unsigned char array.
	* iconvdata/iso-2022-cn-ext.c (BODY): Change buf, tmpbuf, tmp
	types to unsigned char pointers/arrays instead of char.
	* iconvdata/jis0201.h (ucs4_to_jisx0201): Change second argument
	to unsigned char *.
	* iconvdata/jis0208.h (ucs4_to_jisx0208): Likewise.
	* iconvdata/jis0212.h: Include assert.h.
	(ucs4_to_jisx0212): Change second argument to unsigned char *.
	assert that if cp[0] is not '\0', cp[1] is not '\0' either instead
	of trying to handle that.
	* iconvdata/euc-kr.c (euckr_from_ucs4): Initialize also cp[1] to
	shut up a warning.
	* iconvdata/euc-jp-ms.c (from_ucs4_lat1, from_ucs4_greek,
	from_ucs4_cjk, from_ucs4_cjkcpt, from_ucs4_extra): Change type to
	two dimensional const unsigned char arrays.
	(BODY): Cast "" to (const unsigned char *) for assignment to cp.
	Initialize endp to inptr to shut up a warning.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h110
1 files changed, 31 insertions, 79 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h
index 3092b27642..be47bd752e 100644
--- a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h
@@ -40,6 +40,31 @@
 #define LLL_SHARED     FUTEX_PRIVATE_FLAG
 
 
+#if !defined NOT_IN_libc || defined IS_IN_rtld
+/* In libc.so or ld.so all futexes are private.  */
+# ifdef __ASSUME_PRIVATE_FUTEX
+#  define __lll_private_flag(fl, private) \
+  ((fl) | FUTEX_PRIVATE_FLAG)
+# else
+#  define __lll_private_flag(fl, private) \
+  ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex))
+# endif
+#else
+# ifdef __ASSUME_PRIVATE_FUTEX
+#  define __lll_private_flag(fl, private) \
+  (((fl) | FUTEX_PRIVATE_FLAG) ^ (private))
+# else
+#  define __lll_private_flag(fl, private) \
+  (__builtin_constant_p (private)					      \
+   ? ((private) == 0							      \
+      ? ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex))	      \
+      : (fl))								      \
+   : ((fl) | (((private) ^ FUTEX_PRIVATE_FLAG)				      \
+	      & THREAD_GETMEM (THREAD_SELF, header.private_futex))))
+# endif	      
+#endif
+
+
 /* Initializer for compatibility lock.  */
 #define LLL_MUTEX_LOCK_INITIALIZER		(0)
 #define LLL_MUTEX_LOCK_INITIALIZER_LOCKED	(1)
@@ -278,7 +303,7 @@ extern int __lll_mutex_unlock_wake (int *__futex) attribute_hidden;
 	     1: mov r1,r15"\
 		: "=&r" (__ignore) : "r" (__futex), "r" (FUTEX_OWNER_DIED) \
 		: "r0", "r1", "memory");	\
-	    lll_futex_wake (__futex, 1, 0); })
+	    lll_futex_wake (__futex, 1, LLL_SHARED); })
 
 #define lll_mutex_islocked(futex) \
   (futex != 0)
@@ -312,7 +337,8 @@ typedef int lll_lock_t;
     int __status;							      \
     register unsigned long __r3 asm ("r3") = SYS_futex;			      \
     register unsigned long __r4 asm ("r4") = (unsigned long) (futex);	      \
-    register unsigned long __r5 asm ("r5") = FUTEX_WAIT;		      \
+    register unsigned long __r5 asm ("r5")				      \
+      = __lll_private_flag (FUTEX_WAIT, private);			      \
     register unsigned long __r6 asm ("r6") = (unsigned long) (val);	      \
     register unsigned long __r7 asm ("r7") = (timeout);			      \
     __asm __volatile (SYSCALL_WITH_INST_PAD				      \
@@ -329,7 +355,8 @@ typedef int lll_lock_t;
     int __ignore;							      \
     register unsigned long __r3 asm ("r3") = SYS_futex;			      \
     register unsigned long __r4 asm ("r4") = (unsigned long) (futex);	      \
-    register unsigned long __r5 asm ("r5") = FUTEX_WAKE;		      \
+    register unsigned long __r5 asm ("r5")				      \
+      = __lll_private_flag (FUTEX_WAKE, private);			      \
     register unsigned long __r6 asm ("r6") = (unsigned long) (nr);	      \
     register unsigned long __r7 asm ("r7") = 0;				      \
     __asm __volatile (SYSCALL_WITH_INST_PAD				      \
@@ -340,81 +367,6 @@ typedef int lll_lock_t;
   } while (0)
 
 
-#define lll_private_futex_wait(futex, val) \
-  lll_private_futex_timed_wait (futex, val, NULL)
-
-
-#ifdef __ASSUME_PRIVATE_FUTEX
-# define lll_private_futex_timed_wait(futex, val, timeout) \
-  ({									      \
-    int __status;							      \
-    register unsigned long __r3 asm ("r3") = SYS_futex;			      \
-    register unsigned long __r4 asm ("r4") = (unsigned long) (futex);	      \
-    register unsigned long __r5 asm ("r5") = FUTEX_WAIT | FUTEX_PRIVATE_FLAG; \
-    register unsigned long __r6 asm ("r6") = (unsigned long) (val);	      \
-    register unsigned long __r7 asm ("r7") = (timeout);			      \
-    __asm __volatile (SYSCALL_WITH_INST_PAD				      \
-		      : "=z" (__status)					      \
-		      : "r" (__r3), "r" (__r4), "r" (__r5),		      \
-			"r" (__r6), "r" (__r7)				      \
-		      : "memory", "t");					      \
-    __status;								      \
-  })
-
-
-# define lll_private_futex_wake(futex, nr) \
-  do {									      \
-    int __ignore;							      \
-    register unsigned long __r3 asm ("r3") = SYS_futex;			      \
-    register unsigned long __r4 asm ("r4") = (unsigned long) (futex);	      \
-    register unsigned long __r5 asm ("r5") = FUTEX_WAKE | FUTEX_PRIVATE_FLAG; \
-    register unsigned long __r6 asm ("r6") = (unsigned long) (nr);	      \
-    register unsigned long __r7 asm ("r7") = 0;				      \
-    __asm __volatile (SYSCALL_WITH_INST_PAD				      \
-		      : "=z" (__ignore)					      \
-		      : "r" (__r3), "r" (__r4), "r" (__r5),		      \
-			"r" (__r6), "r" (__r7)				      \
-		      : "memory", "t");					      \
-  } while (0)
-
-
-#else
-# define lll_private_futex_timed_wait(futex, val, timeout) \
-  ({									      \
-    int __status;							      \
-    register unsigned long __r3 asm ("r3") = SYS_futex;			      \
-    register unsigned long __r4 asm ("r4") = (unsigned long) (futex);	      \
-    register unsigned long __r5 asm ("r5");				      \
-    register unsigned long __r6 asm ("r6") = (unsigned long) (val);	      \
-    register unsigned long __r7 asm ("r7") = (timeout);			      \
-    __r5 = THREAD_GETMEM (THREAD_SELF, header.private_futex);		      \
-    __asm __volatile (SYSCALL_WITH_INST_PAD				      \
-		      : "=z" (__status)					      \
-		      : "r" (__r3), "r" (__r4), "r" (__r5),		      \
-			"r" (__r6), "r" (__r7)				      \
-		      : "memory", "t");					      \
-    __status;								      \
-  })
-
-
-# define lll_private_futex_wake(futex, nr) \
-  do {									      \
-    int __ignore;							      \
-    register unsigned long __r3 asm ("r3") = SYS_futex;			      \
-    register unsigned long __r4 asm ("r4") = (unsigned long) (futex);	      \
-    register unsigned long __r5 asm ("r5") = FUTEX_WAKE;		      \
-    register unsigned long __r6 asm ("r6") = (unsigned long) (nr);	      \
-    register unsigned long __r7 asm ("r7") = 0;				      \
-    __r5 |= THREAD_GETMEM (THREAD_SELF,	header.private_futex);		      \
-    __asm __volatile (SYSCALL_WITH_INST_PAD				      \
-		      : "=z" (__ignore)					      \
-		      : "r" (__r3), "r" (__r4), "r" (__r5),		      \
-			"r" (__r6), "r" (__r7)				      \
-		      : "memory", "t");					      \
-  } while (0)
-#endif
-
-
 /* The states of a lock are:
     0  -  untaken
     1  -  taken by one user
@@ -438,7 +390,7 @@ extern int __lll_wait_tid (int *tid) attribute_hidden;
   do {									      \
     __typeof (tid) *__tid = &(tid);					      \
     while (*__tid != 0)							      \
-      lll_futex_wait (__tid, *__tid, 0);				      \
+      lll_futex_wait (__tid, *__tid, LLL_SHARED);			      \
   } while (0)
 
 extern int __lll_timedwait_tid (int *tid, const struct timespec *abstime)