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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)