Update.

2001-04-18  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/sparc/sparc64/fpu/libm-test-ulps: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S (__setcontext):
	Copy first word of uc_sigmask into __uc_sigmask.
	* sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S (__getcontext):
	Save uc_link around trap. Copy __uc_sigmask into first word of
	uc_sigmask, clear the rest. Make sure setcontext to the created
	context doesn't do this though.
	* sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h: New file.
	* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (ucontext_t): Add
	uc_stack and uc_sigmask, rename old uc_sigmask to __uc_sigmask in the
	64bit version, make uc_sigmask __sigset_t in the 32bit version.

	* rt/Makefile (otherlibs): Added for static NSS.
	* glibcbug.in (BUGGLIBC): Send to new alias.

7 files changed, 197 insertions, 17 deletions

diff --git a/sysdeps/sparc/sparc64/fpu/libm-test-ulps b/sysdeps/sparc/sparc64/fpu/libm-test-ulps
index 13c0e0bb64..4d92234b5a 100644
--- a/sysdeps/sparc/sparc64/fpu/libm-test-ulps
+++ b/sysdeps/sparc/sparc64/fpu/libm-test-ulps
@@ -18,6 +18,11 @@ Test "atan (0.7) == 0.61072596438920861654375887649023613":
 ildouble: 1
 ldouble: 1
 
+# atanh
+Test "atanh (0.7) == 0.8673005276940531944":
+double: 1
+idouble: 1
+
 # atan2
 Test "atan2 (0.4, 0.0003) == 1.5700463269355215717704032607580829":
 ildouble: 1
@@ -25,13 +30,9 @@ ldouble: 1
 Test "atan2 (0.7, 1) == 0.61072596438920861654375887649023613":
 ildouble: 1
 ldouble: 1
-
-# atanh
-Test "atanh (0.7) == 0.8673005276940531944":
-double: 1
-idouble: 1
-
-# atan2
+Test "atan2 (-0.7, 1.0) == -0.61072596438920861654375887649023613":
+ildouble: 1
+ldouble: 1
 Test "atan2 (0.7, -1.0) == 2.530866689200584621918884506789267":
 float:  3.0000
 ifloat:  3.0000
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S b/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S
index 05b06269e4..457f07448c 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2001 Free Software Foundation, Inc.
    Contributed by Richard Henderson (rth@tamu.edu).
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -17,13 +17,47 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <sysdep.h>
+#include "ucontext_i.h"
 
-/* void getcontext(ucontext_t *); */
+/* int getcontext(ucontext_t *); */
 
 ENTRY(__getcontext)
 
+	ldx	[%o0 + UC_LINK], %o1	/* Preserve uc_link field, the
+					   trap clears it.  */
 	ta	0x6e
-	ret
+1:
+	ldx	[%o0 + UC_M_PC], %o2
+	ldx	[%o0 + UC_M_NPC], %o3
+	ldx	[%o0 + __UC_SIGMASK], %o4
+	stx	%o1, [%o0 + UC_LINK]
+	add	%o2, 2f - 1b, %o2
+	stx	%o2, [%o0 + UC_M_PC]
+	add	%o3, 2f - 1b, %o3
+	stx	%o3, [%o0 + UC_M_NPC]
+#if SIGMASK_WORDS == 16
+	stx	%o4, [%o0 + UC_SIGMASK]
+	stx	%g0, [%o0 + UC_SIGMASK + 8]
+	stx	%g0, [%o0 + UC_SIGMASK + 16]
+	stx	%g0, [%o0 + UC_SIGMASK + 24]
+	stx	%g0, [%o0 + UC_SIGMASK + 32]
+	stx	%g0, [%o0 + UC_SIGMASK + 40]
+	stx	%g0, [%o0 + UC_SIGMASK + 48]
+	stx	%g0, [%o0 + UC_SIGMASK + 56]
+	stx	%g0, [%o0 + UC_SIGMASK + 64]
+	stx	%g0, [%o0 + UC_SIGMASK + 72]
+	stx	%g0, [%o0 + UC_SIGMASK + 80]
+	stx	%g0, [%o0 + UC_SIGMASK + 88]
+	stx	%g0, [%o0 + UC_SIGMASK + 96]
+	stx	%g0, [%o0 + UC_SIGMASK + 104]
+	stx	%g0, [%o0 + UC_SIGMASK + 112]
+	stx	%g0, [%o0 + UC_SIGMASK + 120]
+#else
+# error Adjust __getcontext
+#endif
+2:
+	retl
+	 clr	%o0
 
 END(__getcontext)
 
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c b/sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
new file mode 100644
index 0000000000..93ac398b2c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
@@ -0,0 +1,67 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ucontext.h>
+
+void
+__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
+{
+  extern void __makecontext_ret (void);
+  unsigned long *sp, *topsp;
+  va_list ap;
+  int i;
+
+  sp = (long *) ((long) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size);
+  sp -= (argc > 6 ? argc : 6) + 32;
+  sp = (long *) (((long) sp) & -16L);
+  topsp = sp + (argc > 6 ? argc : 6) + 16;
+
+  ucp->uc_mcontext.mc_gregs[MC_PC] = (long) func;
+  ucp->uc_mcontext.mc_gregs[MC_NPC] = ((long) func) + 4;
+  ucp->uc_mcontext.mc_gregs[MC_O6] = ((long) sp) - 0x7ff;
+  ucp->uc_mcontext.mc_gregs[MC_O7] = ((long) __makecontext_ret) - 8;
+  ucp->uc_mcontext.mc_fp = ((long) topsp) - 0x7ff;
+  ucp->uc_mcontext.mc_i7 = 0;
+  topsp[14] = 0;
+  topsp[15] = 0;
+  sp[8] = (long) ucp->uc_link;
+  va_start (ap, argc);
+  for (i = 0; i < argc; ++i)
+    if (i < 6)
+      ucp->uc_mcontext.mc_gregs[MC_O0 + i] = va_arg (ap, long);
+    else
+      sp[16 + i] = va_arg (ap, long);
+  va_end (ap);
+}
+
+asm ("							\n\
+	.text						\n\
+	.type	__makecontext_ret, #function		\n\
+__makecontext_ret:					\n\
+	mov	1, %o1					\n\
+	call	__setcontext				\n\
+	 mov	%i0, %o0				\n\
+	unimp	0					\n\
+	.size	__makecontext_ret, .-__makecontext_ret	\n\
+     ");
+
+weak_alias (__makecontext, makecontext)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S b/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S
index 2968b65633..bdd841dda3 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2001 Free Software Foundation, Inc.
    Contributed by Richard Henderson (rth@tamu.edu).
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -17,17 +17,19 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <sysdep.h>
+#include "ucontext_i.h"
 
-
-/* void setcontext(ucontext_t *ctx); */
+/* int setcontext(ucontext_t *ctx); */
 .weak setcontext
 ENTRY(setcontext)
 
 	mov	1, %o1
 
-/* void __setcontext(ucontext_t *ctx, int restoremask); */
+/* int __setcontext(ucontext_t *ctx, int restoremask); */
 ENTRY(__setcontext)
 
+	ldx	[%o0 + UC_SIGMASK], %o2
+	stx	%o2, [%o0 + __UC_SIGMASK]
 	ta	0x6f
 
 END(__setcontext)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c b/sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c
new file mode 100644
index 0000000000..141c74663f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c
@@ -0,0 +1,48 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <ucontext.h>
+
+extern int __getcontext (ucontext_t *ucp);
+extern int __setcontext (const ucontext_t *ucp, int restoremask);
+
+int
+__swapcontext (ucontext_t *oucp, const ucontext_t *ucp)
+{
+  extern void __swapcontext_ret (void);
+  /* Save the current machine context to oucp.  */
+  __getcontext (oucp);
+  /* Modify oucp to skip the __setcontext call on reactivation.  */
+  oucp->uc_mcontext.mc_gregs[MC_PC] = (long) __swapcontext_ret;
+  oucp->uc_mcontext.mc_gregs[MC_NPC] = ((long) __swapcontext_ret) + 4;
+  /* Restore the machine context in ucp.  */
+  __setcontext (ucp, 1);
+  return 0;
+}
+
+asm ("							\n\
+	.text						\n\
+	.type	__swapcontext_ret, #function		\n\
+__swapcontext_ret:					\n\
+	return	%i7 + 8					\n\
+	 clr	%o0					\n\
+	.size	__swapcontext_ret, .-__swapcontext_ret	\n\
+     ");
+
+weak_alias (__swapcontext, swapcontext)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h b/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h
new file mode 100644
index 0000000000..b7934d7e27
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+     Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* Constants shared between setcontext() and getcontext().  Don't
+   install this header file.  */
+
+#define UC_LINK		0
+#define __UC_SIGMASK	16
+#define UC_M_PC		40
+#define UC_M_NPC	48
+#define UC_SIGMASK	536
+#define SIGMASK_WORDS	16
diff --git a/sysdeps/unix/sysv/linux/sparc/sys/ucontext.h b/sysdeps/unix/sysv/linux/sparc/sys/ucontext.h
index 58295ff5b1..df3f300fe6 100644
--- a/sysdeps/unix/sysv/linux/sparc/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/sparc/sys/ucontext.h
@@ -81,8 +81,10 @@ typedef struct {
 typedef struct ucontext {
 	struct ucontext		*uc_link;
 	unsigned long		uc_flags;
-	unsigned long		uc_sigmask;
+	unsigned long		__uc_sigmask;
 	mcontext_t		uc_mcontext;
+	stack_t			uc_stack;
+	__sigset_t		uc_sigmask;
 } ucontext_t;
 
 #endif /* __WORDISIZE == 64 */
@@ -259,10 +261,9 @@ typedef struct ucontext
   {
     unsigned long   uc_flags;
     struct ucontext *uc_link;
-    unsigned long   uc_sigmask[4];	/* a svr4 sigset_t */
+    __sigset_t	    uc_sigmask;
     stack_t         uc_stack;
     mcontext_t      uc_mcontext;
-    long            uc_filler[23];
   } ucontext_t;
 
 #endif /* __WORDSIZE == 32 */