* 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.

6 files changed, 156 insertions, 10 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)
diff --git a/sysdeps/i386/fpu/s_cosf.S b/sysdeps/i386/fpu/s_cosf.S
index 21f87aa874..578967ad3c 100644
--- a/sysdeps/i386/fpu/s_cosf.S
+++ b/sysdeps/i386/fpu/s_cosf.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_cosf.S,v 1.3 1995/05/08 23:55:16 jtc Exp $")
 
 ENTRY(__cosf)
 	flds	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(__cosf)
 	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 (__cosf)
 weak_alias (__cosf, cosf)
diff --git a/sysdeps/i386/fpu/s_cosl.S b/sysdeps/i386/fpu/s_cosl.S
index 61c9010c99..27dd74f21b 100644
--- a/sysdeps/i386/fpu/s_cosl.S
+++ b/sysdeps/i386/fpu/s_cosl.S
@@ -3,15 +3,22 @@
  * Public domain.
  *
  * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
+ * Fixed errno handling by Ulrich Drepper <drepper@redhat.com>.
  */
 
+#define __need_Emath
+#include <bits/errno.h>
 #include <machine/asm.h>
 
-RCSID("$NetBSD: $")
-
 ENTRY(__cosl)
 	fldt	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
@@ -27,5 +34,21 @@ ENTRY(__cosl)
 	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 (__cosl)
 weak_alias (__cosl, cosl)
diff --git a/sysdeps/i386/fpu/s_sin.S b/sysdeps/i386/fpu/s_sin.S
index eb22d7e98b..6b913992dc 100644
--- a/sysdeps/i386/fpu/s_sin.S
+++ b/sysdeps/i386/fpu/s_sin.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_sin.S,v 1.5 1995/05/09 00:25:54 jtc Exp $")
 
 ENTRY(__sin)
 	fldl	4(%esp)
-	fsin
+	fxam
+	fstsw	%ax
+	movb	$0x45, %dh
+	andb	%ah, %dh
+	cmpb	$0x05, %dh
+	je	3f
+4:	fsin
 	fnstsw	%ax
 	testl	$0x400,%eax
 	jnz	1f
@@ -25,5 +34,21 @@ ENTRY(__sin)
 	fstp	%st(1)
 	fsin
 	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 (__sin)
 weak_alias (__sin, sin)
diff --git a/sysdeps/i386/fpu/s_sinf.S b/sysdeps/i386/fpu/s_sinf.S
index 5ca45f52e2..67621f70f2 100644
--- a/sysdeps/i386/fpu/s_sinf.S
+++ b/sysdeps/i386/fpu/s_sinf.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_sinf.S,v 1.3 1995/05/09 00:27:53 jtc Exp $")
 
 ENTRY(__sinf)
 	flds	4(%esp)
-	fsin
+	fxam
+	fstsw	%ax
+	movb	$0x45, %dh
+	andb	%ah, %dh
+	cmpb	$0x05, %dh
+	je	3f
+4:	fsin
 	fnstsw	%ax
 	testl	$0x400,%eax
 	jnz	1f
@@ -25,5 +34,21 @@ ENTRY(__sinf)
 	fstp	%st(1)
 	fsin
 	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 (__sinf)
 weak_alias (__sinf, sinf)
diff --git a/sysdeps/i386/fpu/s_sinl.S b/sysdeps/i386/fpu/s_sinl.S
index 3e215de5e1..68c4f99668 100644
--- a/sysdeps/i386/fpu/s_sinl.S
+++ b/sysdeps/i386/fpu/s_sinl.S
@@ -3,15 +3,22 @@
  * Public domain.
  *
  * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
+ * Fixed errno handling by Ulrich Drepper <drepper@redhat.com>.
  */
 
+#define __need_Emath
+#include <bits/errno.h>
 #include <machine/asm.h>
 
-RCSID("$NetBSD: $")
-
 ENTRY(__sinl)
 	fldt	4(%esp)
-	fsin
+	fxam
+	fstsw	%ax
+	movb	$0x45, %dh
+	andb	%ah, %dh
+	cmpb	$0x05, %dh
+	je	3f
+4:	fsin
 	fnstsw	%ax
 	testl	$0x400,%eax
 	jnz	1f
@@ -27,5 +34,21 @@ ENTRY(__sinl)
 	fstp	%st(1)
 	fsin
 	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 (__sinl)
 weak_alias (__sinl, sinl)