summary refs log tree commit diff
path: root/sysdeps/i386/fpu/s_cos.S
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2009-04-26 01:04:54 +0000
committerUlrich Drepper <drepper@redhat.com>2009-04-26 01:04:54 +0000
commit0c59a1963e948c546e0d3e34de974c7e71de1134 (patch)
treed2d20501ed445fc7e36e3cb4b0491a744c982976 /sysdeps/i386/fpu/s_cos.S
parent4bbf8999f4d93c5da77737ccf06a1aa67225d3f4 (diff)
downloadglibc-0c59a1963e948c546e0d3e34de974c7e71de1134.tar.gz
glibc-0c59a1963e948c546e0d3e34de974c7e71de1134.tar.xz
glibc-0c59a1963e948c546e0d3e34de974c7e71de1134.zip
* sysdeps/i386/fpu/s_cos.S: Set errno for ±Inf.
	* sysdeps/i386/fpu/s_cosf.S: Likewise.
	* sysdeps/i386/fpu/s_cosl.S: Likewise.
	* sysdeps/i386/fpu/s_sin.S: Likewise.
	* sysdeps/i386/fpu/s_sinf.S: Likewise.
	* sysdeps/i386/fpu/s_sinl.S: Likewise.
	* sysdeps/ieee754/dbl-64/s_sin.c: Likewise.
	* sysdeps/ieee754/flt-32/s_cosf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_sinf.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_cosl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_sinl.c: Likewise.
	* sysdeps/x86_64/fpu/s_cosl.S: Likewise.
	* sysdeps/x86_64/fpu/s_sinl.S: Likewise.
	* math/libm-test.inc: Add tests for errno after sin/cos calls with
	±Inf.
Diffstat (limited to 'sysdeps/i386/fpu/s_cos.S')
-rw-r--r--sysdeps/i386/fpu/s_cos.S27
1 files changed, 26 insertions, 1 deletions
diff --git a/sysdeps/i386/fpu/s_cos.S b/sysdeps/i386/fpu/s_cos.S
index ac8b1459d9..d341d008c5 100644
--- a/sysdeps/i386/fpu/s_cos.S
+++ b/sysdeps/i386/fpu/s_cos.S
@@ -1,15 +1,24 @@
 /*
  * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Fixed errno handling by Ulrich Drepper <drepper@redhat.com>.
  * Public domain.
  */
 
+#define __need_Emath
+#include <bits/errno.h>
 #include <machine/asm.h>
 
 RCSID("$NetBSD: s_cos.S,v 1.5 1995/05/08 23:54:00 jtc Exp $")
 
 ENTRY(__cos)
 	fldl	4(%esp)
-	fcos
+	fxam
+	fstsw	%ax
+	movb	$0x45, %dh
+	andb	%ah, %dh
+	cmpb	$0x05, %dh
+	je	3f
+4:	fcos
 	fnstsw	%ax
 	testl	$0x400,%eax
 	jnz	1f
@@ -25,5 +34,21 @@ ENTRY(__cos)
 	fstp	%st(1)
 	fcos
 	ret
+3:
+#ifdef PIC
+	pushl	%ebx
+	cfi_adjust_cfa_offset (4)
+	cfi_rel_offset (ebx, 0)
+	LOAD_PIC_REG (bx)
+	call	__errno_location@PLT
+	movl	$EDOM, (%eax)
+	popl	%ebx
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (ebx)
+#else
+	call	__errno_location@PLT
+	movl	$EDOM, (%eax)
+#endif
+	jmp	4b
 END (__cos)
 weak_alias (__cos, cos)