Patchwork [2/2] Update soft-fp from GLIBC

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Submitter Marcus Shawcroft
Date Nov. 14, 2012, 3:31 p.m.
Message ID <50A3B942.3020004@arm.com>
Download mbox | patch
Permalink /patch/198947/
State New
Headers show

Comments

Marcus Shawcroft - Nov. 14, 2012, 3:31 p.m.
This patch provides a definition of FP_TRAPPING_EXCEPTION for aarch64.

/Marcus

2012-11-14  Marcus Shawcroft <marcus.shawcroft@arm.com>

	* config/aarch64/sfp-machine.h (FP_EX_ALL): Define.
	  (FP_EX_SHIFT): Define.
	  (FP_TRAPPING_EXCEPTIONS): Define.
Marcus Shawcroft - Dec. 3, 2012, 4:02 p.m.
PING

On 14 Nov 2012, at 15:31, Marcus Shawcroft <Marcus.Shawcroft@arm.com> wrote:

> This patch provides a definition of FP_TRAPPING_EXCEPTION for aarch64.
> 
> /Marcus
> 
> 2012-11-14  Marcus Shawcroft <marcus.shawcroft@arm.com>
> 
> 	* config/aarch64/sfp-machine.h (FP_EX_ALL): Define.
> 	  (FP_EX_SHIFT): Define.
> 	  (FP_TRAPPING_EXCEPTIONS): Define.
> <0003-AArch64-FP_TRAPPING_EXCEPTIONS.patch>

Patch

diff --git a/libgcc/config/aarch64/sfp-machine.h b/libgcc/config/aarch64/sfp-machine.h
index 6c56a92..52b6fb2 100644
--- a/libgcc/config/aarch64/sfp-machine.h
+++ b/libgcc/config/aarch64/sfp-machine.h
@@ -69,6 +69,10 @@  typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
 #define FP_EX_OVERFLOW	0x04
 #define FP_EX_UNDERFLOW	0x08
 #define FP_EX_INEXACT	0x10
+#define FP_EX_SHIFT 8
+#define FP_EX_ALL \
+	(FP_EX_INVALID | FP_EX_DIVZERO | FP_EX_OVERFLOW | FP_EX_UNDERFLOW \
+	 | FP_EX_INEXACT)
 
 void __sfp_handle_exceptions (int);
 
@@ -78,6 +82,8 @@  void __sfp_handle_exceptions (int);
       __sfp_handle_exceptions (_fex);		\
   } while (0);
 
+#define FP_TRAPPING_EXCEPTIONS ((_fpcr >> FP_EX_SHIFT) & FP_EX_ALL)
+
 #define FP_RND_NEAREST		0x000000
 #define FP_RND_PINF		0x400000
 #define FP_RND_MINF		0x800000