StdLib: Patches and updates for ARM.

Add ARMGCC and RVCT toolchain support.
Update and Add ARM specific machine headers.
Set the empty macro for __warn_references().
Make __flt_rounds() return 'Round to nearest' by default on ARM.

Signed-off-by:  Olivier Martin [olivier.martin@arm.com]
Reviewed-by:    darylm503


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12367 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 14 insertions, 13 deletions

diff --git a/StdLib/LibC/Main/Arm/flt_rounds.c b/StdLib/LibC/Main/Arm/flt_rounds.c
index 3f43650270..a64f447aab 100644
--- a/StdLib/LibC/Main/Arm/flt_rounds.c
+++ b/StdLib/LibC/Main/Arm/flt_rounds.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: flt_rounds.c,v 1.3 2006/02/25 00:58:35 wiz Exp $	*/

+/*  $NetBSD: flt_rounds.c,v 1.3 2006/02/25 00:58:35 wiz Exp $ */

 

 /*

  * Copyright (c) 1996 Mark Brinicombe

@@ -15,7 +15,7 @@
  * 3. All advertising materials mentioning features or use of this software

  *    must display the following acknowledgement:

  *      This product includes software developed by Mark Brinicombe

- *	for the NetBSD Project.

+ *  for the NetBSD Project.

  * 4. The name of the author may not be used to endorse or promote products

  *    derived from this software without specific prior written permission

  *

@@ -31,29 +31,29 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

  */

 

-#include <sys/cdefs.h>

+#include <sys/EfiCdefs.h>

 #if defined(LIBC_SCCS) && !defined(lint)

 __RCSID("$NetBSD: flt_rounds.c,v 1.3 2006/02/25 00:58:35 wiz Exp $");

 #endif /* LIBC_SCCS and not lint */

 

 #include <sys/types.h>

-#include <ieeefp.h>

+//#include <ieeefp.h>

 

 static const int map[] = {

-	1,	/* round to nearest */

-	2,	/* round to positive infinity */

-	3,	/* round to negative infinity */

-	0	/* round to zero */

+  1,  /* round to nearest */

+  2,  /* round to positive infinity */

+  3,  /* round to negative infinity */

+  0 /* round to zero */

 };

 

 /*

  * Return the current FP rounding mode

  *

  * Returns:

- *	0 - round to zero

- *	1 - round to nearest

- *	2 - round to postive infinity

- *	3 - round to negative infinity

+ *  0 - round to zero

+ *  1 - round to nearest

+ *  2 - round to postive infinity

+ *  3 - round to negative infinity

  *

  * ok all we need to do is get the current FP rounding mode

  * index our map table and return the appropriate value.

@@ -77,5 +77,6 @@ int __flt_rounds(void);
 int

 __flt_rounds()

 {

-	return(map[fpgetround()]);

+  //return(map[fpgetround()]);

+  return 1; //TODO: FixMe

 }