[Fedora-directory-commits] ldapserver/ldap/servers/slapd slapi_counter_sunos_sparcv9.S, NONE, 1.1 slapi_counter.c, 1.1, 1.2 slapi_counter_sunos_sparcv9.il, 1.1, NONE

Noriko Hosoi nhosoi at fedoraproject.org
Wed Oct 22 20:24:39 UTC 2008


Author: nhosoi

Update of /cvs/dirsec/ldapserver/ldap/servers/slapd
In directory cvs1.fedora.phx.redhat.com:/tmp/cvs-serv8616/ldap/servers/slapd

Modified Files:
	slapi_counter.c 
Added Files:
	slapi_counter_sunos_sparcv9.S 
Removed Files:
	slapi_counter_sunos_sparcv9.il 
Log Message:
Resolves: 207457
Summary: (64bitcounters) rhds 7.1 - server stats use 32-bit integers - 
entrycachehitratio 1503%
Change description:
1) Makefile.am: instead of the inline assembly langauge file .il, include an
independent .S file to the libslapd_la_SOURCES list.
2) add AM_PROG_AS to configure.ac to accept CCAS and CCASFLAGS.
3) slapi_counter.c: adjusted to slapi_counter_sunos_sparcv9.S.
4) add slapi_counter_sunos_sparcv9.S
5) remove slapi_counter_sunos_sparcv9.il



--- NEW FILE slapi_counter_sunos_sparcv9.S ---
! BEGIN COPYRIGHT BLOCK
! This Program is free software; you can redistribute it and/or modify it under
! the terms of the GNU General Public License as published by the Free Software
! Foundation; version 2 of the License.
! 
! This Program is distributed in the hope that it will be useful, but WITHOUT
! ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
! FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
! 
! You should have received a copy of the GNU General Public License along with
! this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
! Place, Suite 330, Boston, MA 02111-1307 USA.
! 
! In addition, as a special exception, Red Hat, Inc. gives You the additional
! right to link the code of this Program with code not covered under the GNU
! General Public License ("Non-GPL Code") and to distribute linked combinations
! including the two, subject to the limitations in this paragraph. Non-GPL Code
! permitted under this exception must only link to the code of this Program
! through those well defined interfaces identified in the file named EXCEPTION
! found in the source code files (the "Approved Interfaces"). The files of
! Non-GPL Code may instantiate templates or use macros or inline functions from
! the Approved Interfaces without causing the resulting work to be covered by
! the GNU General Public License. Only Red Hat, Inc. may make changes or
! additions to the list of Approved Interfaces. You must obey the GNU General
! Public License in all respects for all of the Program code and other code used
! in conjunction with the Program except the Non-GPL Code covered by this
! exception. If you modify this file, you may extend this exception to your
! version of the file, but you are not obligated to do so. If you do not wish to
! provide this exception without modification, you must delete this exception
! statement from your version and license this file solely under the GPL without
! exception. 
! 
! 
! The Original Code is the Netscape Portable Runtime (NSPR).
!
! The Initial Developer of the Original Code is
! Netscape Communications Corporation.
! Portions created by the Initial Developer are Copyright (C) 1998-2000
! the Initial Developer. All Rights Reserved.
!
! The original code has been modified to support 64-bit atomic increments by
! Red Hat, Inc.  These portions are Copyright (C) 2008 Red Hat, Inc. All Rights
! reserved.
!
! END COPYRIGHT BLOCK
!

#include <sys/asm_linkage.h>

!  ======================================================================
!
!  Perform the sequence a = b atomically with respect to other
!  fetch-and-stores to location a in a wait-free fashion.
!
!  usage : old_val = PR_AtomicSet(address, newval)
!
!  -----------------------
!  Note on REGISTER USAGE:
!  as this is a LEAF procedure, a new stack frame is not created;
!  we use the caller's stack frame so what would normally be %i (input)
!  registers are actually %o (output registers).  Also, we must not
!  overwrite the contents of %l (local) registers as they are not
!  assumed to be volatile during calls.
!  -----------------------

        ENTRY(_sparcv9_AtomicSet)            ! standard assembler/ELF prologue

retryAS:
        ldx     [%o0], %o2              ! set o2 to the current value
        mov     %o1, %o3                ! set up the new value
        casx    [%o0], %o2, %o3         ! atomically set if o0 hasn't changed
        cmp     %o2, %o3                ! see if we set the value
        bne     retryAS                 ! if not, try again
        nop                             ! empty out the branch pipeline
        retl                            ! return back to the caller
        mov     %o3, %o0                ! set the return code to the prev value

        SET_SIZE(_sparcv9_AtomicSet)    ! standard assembler/ELF epilogue

!
!  end
!
!  ======================================================================
!
!  Perform the sequence a = a + b atomically with respect to other
!  fetch-and-adds to location a in a wait-free fashion.
!
!  usage : newval = PR_AtomicAdd(address, val)
!  return: the value after addition
!
        ENTRY(_sparcv9_AtomicAdd)      ! standard assembler/ELF prologue

retryAA:
        ldx     [%o0], %o2              ! set o2 to the current value
        addx    %o2, %o1, %o3           ! calc the new value
        mov     %o3, %o4                ! save the return value
        casx    [%o0], %o2, %o3         ! atomically set if o0 hasn't changed
        cmp     %o2, %o3                ! see if we set the value
        bne     retryAA                 ! if not, try again
        nop                             ! empty out the branch pipeline
        retl                            ! return back to the caller
        mov     %o4, %o0                ! set the return code to the new value

        SET_SIZE(_sparcv9_AtomicAdd)    ! standard assembler/ELF epilogue

!
!  end
!
!  ======================================================================
!
!  Perform the sequence a = a - b atomically with respect to other
!  fetch-and-subs to location a in a wait-free fashion.
!
!  usage : newval = PR_AtomicSub(address, val)
!  return: the value after addition
!
        ENTRY(_sparcv9_AtomicSub)      ! standard assembler/ELF prologue

retryAU:
        ldx     [%o0], %o2              ! set o2 to the current value
        subx    %o2, %o1, %o3           ! calc the new value
        mov     %o3, %o4                ! save the return value
        casx    [%o0], %o2, %o3         ! atomically set if o0 hasn't changed
        cmp     %o2, %o3                ! see if we set the value
        bne     retryAU                 ! if not, try again
        nop                             ! empty out the branch pipeline
        retl                            ! return back to the caller
        mov     %o4, %o0                ! set the return code to the new value

        SET_SIZE(_sparcv9_AtomicSub)    ! standard assembler/ELF epilogue

!
!  end
!


Index: slapi_counter.c
===================================================================
RCS file: /cvs/dirsec/ldapserver/ldap/servers/slapd/slapi_counter.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- slapi_counter.c	17 Oct 2008 22:15:26 -0000	1.1
+++ slapi_counter.c	22 Oct 2008 20:24:37 -0000	1.2
@@ -41,6 +41,12 @@
 
 #include "slap.h"
 
+#ifdef SOLARIS
+PRUint64 _sparcv9_AtomicSet_il(PRUint64 *address, PRUint64 newval);
+PRUint64 _sparcv9_AtomicAdd_il(PRUint64 *address, PRUint64 val);
+PRUint64 _sparcv9_AtomicSub_il(PRUint64 *address, PRUint64 val);
+#endif
+
 #ifdef HPUX
 #ifdef ATOMIC_64BIT_OPERATIONS
 #include <machine/sys/inline.h>
@@ -157,7 +163,7 @@
 #ifdef LINUX
     newvalue = __sync_add_and_fetch(&(counter->value), addvalue);
 #elif defined(SOLARIS)
-    newvalue = _sparcv9_AtomicAdd_il(&(counter->value), addvalue);
+    newvalue = _sparcv9_AtomicAdd(&(counter->value), addvalue);
 #elif defined(HPUX)
     /* fetchadd only works with values of 1, 4, 8, and 16.  In addition, it requires
      * it's argument to be an integer constant. */
@@ -214,7 +220,7 @@
 #ifdef LINUX
     newvalue = __sync_sub_and_fetch(&(counter->value), subvalue);
 #elif defined(SOLARIS)
-    newvalue = _sparcv9_AtomicSub_il(&(counter->value), subvalue);
+    newvalue = _sparcv9_AtomicSub(&(counter->value), subvalue);
 #elif defined(HPUX)
     /* fetchadd only works with values of -1, -4, -8, and -16.  In addition, it requires
      * it's argument to be an integer constant. */
@@ -272,7 +278,7 @@
         }
     }
 #elif defined(SOLARIS)
-    _sparcv9_AtomicSet_il(&(counter->value), newvalue);
+    _sparcv9_AtomicSet(&(counter->value), newvalue);
     return newvalue;
 #elif defined(HPUX)
     do {
@@ -313,7 +319,7 @@
 #elif defined(SOLARIS)
     while (1) {
         value = counter->value;
-        if (value == _sparcv9_AtomicSet_il(&(counter->value), value)) {
+        if (value == _sparcv9_AtomicSet(&(counter->value), value)) {
             break;
         }
     }


--- slapi_counter_sunos_sparcv9.il DELETED ---




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