bzr commit into mysql-6.0-falcon branch (olav:2743) Bug#37622

[Olav Sandstaa]

#At file:///home/os136802/mysql/develop/repo/mysql-6.0-falcon-sparc-ss/

 2743 Olav Sandstaa	2008-07-10
      Partial fix to Bug#37622 Falcon does not compile on Solaris 9 on SPARC using Sun Studio compiler
      
      Changes to Falcon's configure and build system in order to support Sun Studio's inline templates
      for assembly code.
added:
  storage/falcon/CompareAndSwapSparc.il
modified:
  storage/falcon/Interlock.h
  storage/falcon/Makefile.am
  storage/falcon/plug.in

per-file messages:
  storage/falcon/CompareAndSwapSparc.il
    Empty implementations for the two compare and swap functions needed by Interlock.h when
    running on SPARC and compiling with Sun Studio compiler.
  storage/falcon/Interlock.h
    Added definitions and calls to the CAS functions implemented using inline templates with assembly for SPARC and Sun Studio compiler.
  storage/falcon/Makefile.am
    Support for inline templates for SPARC assembly when compiling with Sun Studio compiler on Solaris 9.
  storage/falcon/plug.in
    Support for inline templates for SPARC assembly when compiling with Sun Studio compiler
    on Solaris 9 on SPARC.
=== added file 'storage/falcon/CompareAndSwapSparc.il'

=== added file 'storage/falcon/CompareAndSwapSparc.il'
--- a/storage/falcon/CompareAndSwapSparc.il	1970-01-01 00:00:00 +0000
+++ b/storage/falcon/CompareAndSwapSparc.il	2008-07-10 09:27:51 +0000
@@ -0,0 +1,12 @@
+
+
+/* Implements inline_cas_uint - empty this far */
+.inline compareswap
+  nop
+.end
+
+
+/* Implements inline_cas_ptr - empty this far */
+.inline compareswapptr
+  nop
+.end

=== modified file 'storage/falcon/Interlock.h'
--- a/storage/falcon/Interlock.h	2008-06-26 22:04:56 +0000
+++ b/storage/falcon/Interlock.h	2008-07-10 09:27:51 +0000
@@ -18,6 +18,12 @@
 
 #if defined(__sparcv8) || defined(__sparcv9) || defined(__sun)
 #include <sys/atomic.h>
+
+#if defined(__SunOS_5_9)
+extern "C" int compareswap(volatile int *target, int compare, int exchange);
+extern "C" char compareswapptr(volatile void **target, void *compare, void *exchange);
+#endif /* __SunOS_5_9 */
+
 #endif
 
 #define INTERLOCKED_INCREMENT(variable)		interlockedIncrement(&variable)
@@ -147,6 +153,10 @@
     return (compare == atomic_cas_uint((volatile uint_t *)target, compare, exchange));
 #else
 #  error cas not defined. We need >= Solaris 10
+	/* Not implemented yet - just an example of how to call inline assembly */
+	char ret = compareswap(target, compare, exchange);
+
+	return ret;
 #endif
 
 #else
@@ -257,6 +267,10 @@
     return (char)(compare == atomic_cas_ptr(target, compare, exchange));
 #else
 #  error cas not defined. We need >= Solaris 10
+	/* Not implemented yet - just an example for calling inline assembly */
+	char ret = compareswapptr(target, compare, exchange);
+    
+	return ret;
 #endif
 
 #else

=== modified file 'storage/falcon/Makefile.am'
--- a/storage/falcon/Makefile.am	2008-06-19 15:09:45 +0000
+++ b/storage/falcon/Makefile.am	2008-07-10 09:27:51 +0000
@@ -23,7 +23,8 @@
 
 INCLUDES= -I$(top_srcdir)/include -I$(top_builddir)/include \
 	  -I$(top_srcdir)/regex -I$(top_srcdir)/sql \
-	  -I$(srcdir) -I$(srcdir)/TransformLib @ZLIB_INCLUDES@
+	  -I$(srcdir) -I$(srcdir)/TransformLib @ZLIB_INCLUDES@ \
+	  @FALCON_SPARC_ASSEMBLY@
 
 falcon_headers= Agent.h Alias.h Application.h \
 		AsciiBlob.h \

=== modified file 'storage/falcon/plug.in'
--- a/storage/falcon/plug.in	2008-04-23 17:45:42 +0000
+++ b/storage/falcon/plug.in	2008-07-10 09:27:51 +0000
@@ -94,4 +94,20 @@
   esac
 
   AC_SUBST([FALCON_CXXFLAGS])
+
+  # When compiling with Sun Studio compiler on SPARC assembly code for
+  # Interlock operations needs to be included. This has been implemented 
+  # as "inline templates" in a separate file
+  FALCON_SPARC_ASSEMBLY=""
+  case $host in
+    sparc-sun-solaris2.9)
+      case $CXX_VERSION in
+        *Sun*C++*)
+          FALCON_SPARC_ASSEMBLY="CompareAndSwapSparc.il"
+          ;;
+      esac
+      ;;
+  esac
+
+  AC_SUBST([FALCON_SPARC_ASSEMBLY])
 ])