Update

	* sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h (struct
	_fpstate): Rename fwd to ftw.
	* sysdeps/unix/sysv/linux/x86_64/sys/user.h (struct user_fpregs_struct): Likewise.

	* sysdeps/unix/sysv/linux/x86_64/register-dump.h (register_dump):
	Follow sigcontext changes.

2002-03-22  Andreas Jaeger  <aj@suse.de>

4 files changed, 113 insertions, 68 deletions

diff --git a/sysdeps/mips/bits/nan.h b/sysdeps/mips/bits/nan.h
new file mode 100644
index 0000000000..193ab3ccad
--- /dev/null
+++ b/sysdeps/mips/bits/nan.h
@@ -0,0 +1,51 @@
+/* `NAN' constant for IEEE 754 machines.
+   Copyright (C) 1992, 1996, 1997, 1999, 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/nan.h> directly; include <math.h> instead."
+#endif
+
+
+/* IEEE Not A Number (QNaN). Note that MIPS has the QNaN and SNaN patterns
+   reversed compared to most other architectures. The IEEE spec left
+   the definition of this open to implementations, and for MIPS the top
+   bit of the mantissa must be SET to indicate a SNaN.  */
+
+#ifdef	__GNUC__
+
+# define NAN \
+  (__extension__                                                            \
+   ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; })  \
+    { __l: 0x7fbfffffUL }).__d)
+
+#else
+
+# include <endian.h>
+
+# if __BYTE_ORDER == __BIG_ENDIAN
+#  define __nan_bytes		{ 0x7f, 0xbf, 0xff, 0xff }
+# endif
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  define __nan_bytes		{ 0xff, 0xff, 0xbf, 0x7f }
+# endif
+
+static union { unsigned char __c[4]; float __d; } __nan_union = { __nan_bytes };
+# define NAN	(__nan_union.__d)
+
+#endif	/* GCC.  */
diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h b/sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h
index 57481154c9..19a6f1f0d3 100644
--- a/sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h
+++ b/sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h
@@ -103,7 +103,7 @@ struct _fpstate
   /* FPU environment matching the 64-bit FXSAVE layout.  */
   __uint16_t		cwd;
   __uint16_t		swd;
-  __uint16_t		twd;
+  __uint16_t		ftw;
   __uint16_t		fop;
   __uint64_t		rip;
   __uint64_t		rdp;
diff --git a/sysdeps/unix/sysv/linux/x86_64/register-dump.h b/sysdeps/unix/sysv/linux/x86_64/register-dump.h
index 610e05077b..82a6d05ca3 100644
--- a/sysdeps/unix/sysv/linux/x86_64/register-dump.h
+++ b/sysdeps/unix/sysv/linux/x86_64/register-dump.h
@@ -1,5 +1,5 @@
 /* Dump registers.
-   Copyright (C) 2001 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -68,7 +68,7 @@ static void
 register_dump (int fd, struct sigcontext *ctx)
 {
   char regs[29][16];
-  char fpregs[32][8];
+  char fpregs[30][8];
   char xmmregs[16][32];
   struct iovec iov[147];
   size_t nr = 0;
@@ -181,13 +181,11 @@ register_dump (int fd, struct sigcontext *ctx)
     {
 
       /* Generate output for the FPU control/status registers.  */
-      hexvalue (ctx->fpstate->cw, fpregs[0], 8);
-      hexvalue (ctx->fpstate->sw, fpregs[1], 8);
-      hexvalue (ctx->fpstate->tag, fpregs[2], 8);
-      hexvalue (ctx->fpstate->ipoff, fpregs[3], 8);
-      hexvalue (ctx->fpstate->cssel, fpregs[4], 4);
-      hexvalue (ctx->fpstate->dataoff, fpregs[5], 8);
-      hexvalue (ctx->fpstate->datasel, fpregs[6], 4);
+      hexvalue (ctx->fpstate->cwd, fpregs[0], 8);
+      hexvalue (ctx->fpstate->swd, fpregs[1], 8);
+      hexvalue (ctx->fpstate->twd, fpregs[2], 8);
+      hexvalue (ctx->fpstate->rip, fpregs[3], 8);
+      hexvalue (ctx->fpstate->rdp, fpregs[4], 8);
 
       ADD_STRING ("\n\n FPUCW: ");
       ADD_MEM (fpregs[0], 8);
@@ -195,58 +193,54 @@ register_dump (int fd, struct sigcontext *ctx)
       ADD_MEM (fpregs[1], 8);
       ADD_STRING ("   TAG: ");
       ADD_MEM (fpregs[2], 8);
-      ADD_STRING ("\n IPOFF: ");
+      ADD_STRING ("\n RIP: ");
       ADD_MEM (fpregs[3], 8);
-      ADD_STRING ("   CSSEL: ");
-      ADD_MEM (fpregs[4], 4);
-      ADD_STRING ("   DATAOFF: ");
-      ADD_MEM (fpregs[5], 8);
-      ADD_STRING ("   DATASEL: ");
-      ADD_MEM (fpregs[6], 4);
+      ADD_STRING ("   RDP: ");
+      ADD_MEM (fpregs[4], 8);
 
       /* Now the real FPU registers.  */
-      hexvalue (ctx->fpstate->_st[0].exponent, fpregs[7], 8);
+      hexvalue (ctx->fpstate->_st[0].exponent, fpregs[5], 8);
       hexvalue (ctx->fpstate->_st[0].significand[3] << 16
-		| ctx->fpstate->_st[0].significand[2], fpregs[8], 8);
+		| ctx->fpstate->_st[0].significand[2], fpregs[6], 8);
       hexvalue (ctx->fpstate->_st[0].significand[1] << 16
-		| ctx->fpstate->_st[0].significand[0], fpregs[9], 8);
-      hexvalue (ctx->fpstate->_st[1].exponent, fpregs[10], 8);
+		| ctx->fpstate->_st[0].significand[0], fpregs[7], 8);
+      hexvalue (ctx->fpstate->_st[1].exponent, fpregs[8], 8);
       hexvalue (ctx->fpstate->_st[1].significand[3] << 16
-		| ctx->fpstate->_st[1].significand[2], fpregs[11], 8);
+		| ctx->fpstate->_st[1].significand[2], fpregs[9], 8);
       hexvalue (ctx->fpstate->_st[1].significand[1] << 16
-		| ctx->fpstate->_st[1].significand[0], fpregs[12], 8);
-      hexvalue (ctx->fpstate->_st[2].exponent, fpregs[13], 8);
+		| ctx->fpstate->_st[1].significand[0], fpregs[10], 8);
+      hexvalue (ctx->fpstate->_st[2].exponent, fpregs[11], 8);
       hexvalue (ctx->fpstate->_st[2].significand[3] << 16
-		| ctx->fpstate->_st[2].significand[2], fpregs[14], 8);
+		| ctx->fpstate->_st[2].significand[2], fpregs[12], 8);
       hexvalue (ctx->fpstate->_st[2].significand[1] << 16
-		| ctx->fpstate->_st[2].significand[0], fpregs[15], 8);
-      hexvalue (ctx->fpstate->_st[3].exponent, fpregs[16], 8);
+		| ctx->fpstate->_st[2].significand[0], fpregs[13], 8);
+      hexvalue (ctx->fpstate->_st[3].exponent, fpregs[14], 8);
       hexvalue (ctx->fpstate->_st[3].significand[3] << 16
-		| ctx->fpstate->_st[3].significand[2], fpregs[17], 8);
+		| ctx->fpstate->_st[3].significand[2], fpregs[15], 8);
       hexvalue (ctx->fpstate->_st[3].significand[1] << 16
-		| ctx->fpstate->_st[3].significand[0], fpregs[18], 8);
-      hexvalue (ctx->fpstate->_st[4].exponent, fpregs[19], 8);
+		| ctx->fpstate->_st[3].significand[0], fpregs[16], 8);
+      hexvalue (ctx->fpstate->_st[4].exponent, fpregs[17], 8);
       hexvalue (ctx->fpstate->_st[4].significand[3] << 16
-		| ctx->fpstate->_st[4].significand[2], fpregs[20], 8);
+		| ctx->fpstate->_st[4].significand[2], fpregs[18], 8);
       hexvalue (ctx->fpstate->_st[4].significand[1] << 16
-		| ctx->fpstate->_st[4].significand[0], fpregs[21], 8);
-      hexvalue (ctx->fpstate->_st[5].exponent, fpregs[22], 8);
+		| ctx->fpstate->_st[4].significand[0], fpregs[19], 8);
+      hexvalue (ctx->fpstate->_st[5].exponent, fpregs[20], 8);
       hexvalue (ctx->fpstate->_st[5].significand[3] << 16
-		| ctx->fpstate->_st[5].significand[2], fpregs[23], 8);
+		| ctx->fpstate->_st[5].significand[2], fpregs[21], 8);
       hexvalue (ctx->fpstate->_st[5].significand[1] << 16
-		| ctx->fpstate->_st[5].significand[0], fpregs[24], 8);
-      hexvalue (ctx->fpstate->_st[6].exponent, fpregs[25], 8);
+		| ctx->fpstate->_st[5].significand[0], fpregs[22], 8);
+      hexvalue (ctx->fpstate->_st[6].exponent, fpregs[23], 8);
       hexvalue (ctx->fpstate->_st[6].significand[3] << 16
-		| ctx->fpstate->_st[6].significand[2], fpregs[26], 8);
+		| ctx->fpstate->_st[6].significand[2], fpregs[24], 8);
       hexvalue (ctx->fpstate->_st[6].significand[1] << 16
-		| ctx->fpstate->_st[6].significand[0], fpregs[27], 8);
-      hexvalue (ctx->fpstate->_st[7].exponent, fpregs[28], 8);
+		| ctx->fpstate->_st[6].significand[0], fpregs[25], 8);
+      hexvalue (ctx->fpstate->_st[7].exponent, fpregs[26], 8);
       hexvalue (ctx->fpstate->_st[7].significand[3] << 16
-		| ctx->fpstate->_st[7].significand[2], fpregs[29], 8);
+		| ctx->fpstate->_st[7].significand[2], fpregs[27], 8);
       hexvalue (ctx->fpstate->_st[7].significand[1] << 16
-		| ctx->fpstate->_st[7].significand[0], fpregs[30], 8);
+		| ctx->fpstate->_st[7].significand[0], fpregs[28], 8);
 
-      hexvalue (ctx->fpstate->mxcsr, fpregs[31], 4);
+      hexvalue (ctx->fpstate->mxcsr, fpregs[29], 4);
 
       for (i = 0; i < 16; i++)
 	hexvalue (ctx->fpstate->_xmm[i].element[3] << 24
@@ -256,48 +250,48 @@ register_dump (int fd, struct sigcontext *ctx)
 
 
       ADD_STRING ("\n\n ST(0) ");
-      ADD_MEM (fpregs[7], 4);
+      ADD_MEM (fpregs[5], 4);
       ADD_STRING (" ");
-      ADD_MEM (fpregs[8], 8);
-      ADD_MEM (fpregs[9], 8);
+      ADD_MEM (fpregs[6], 8);
+      ADD_MEM (fpregs[7], 8);
       ADD_STRING ("   ST(1) ");
-      ADD_MEM (fpregs[10], 4);
+      ADD_MEM (fpregs[8], 4);
       ADD_STRING (" ");
-      ADD_MEM (fpregs[11], 8);
-      ADD_MEM (fpregs[12], 8);
+      ADD_MEM (fpregs[9], 8);
+      ADD_MEM (fpregs[10], 8);
       ADD_STRING ("\n ST(2) ");
-      ADD_MEM (fpregs[13], 4);
+      ADD_MEM (fpregs[11], 4);
       ADD_STRING (" ");
-      ADD_MEM (fpregs[14], 8);
-      ADD_MEM (fpregs[15], 8);
+      ADD_MEM (fpregs[12], 8);
+      ADD_MEM (fpregs[13], 8);
       ADD_STRING ("   ST(3) ");
-      ADD_MEM (fpregs[16], 4);
+      ADD_MEM (fpregs[14], 4);
       ADD_STRING (" ");
-      ADD_MEM (fpregs[17], 8);
-      ADD_MEM (fpregs[18], 8);
+      ADD_MEM (fpregs[15], 8);
+      ADD_MEM (fpregs[16], 8);
       ADD_STRING ("\n ST(4) ");
-      ADD_MEM (fpregs[19], 4);
+      ADD_MEM (fpregs[17], 4);
       ADD_STRING (" ");
-      ADD_MEM (fpregs[20], 8);
-      ADD_MEM (fpregs[21], 8);
+      ADD_MEM (fpregs[18], 8);
+      ADD_MEM (fpregs[19], 8);
       ADD_STRING ("   ST(5) ");
-      ADD_MEM (fpregs[22], 4);
+      ADD_MEM (fpregs[20], 4);
       ADD_STRING (" ");
-      ADD_MEM (fpregs[23], 8);
-      ADD_MEM (fpregs[24], 8);
+      ADD_MEM (fpregs[21], 8);
+      ADD_MEM (fpregs[22], 8);
       ADD_STRING ("\n ST(6) ");
-      ADD_MEM (fpregs[25], 4);
+      ADD_MEM (fpregs[23], 4);
       ADD_STRING (" ");
-      ADD_MEM (fpregs[26], 8);
-      ADD_MEM (fpregs[27], 8);
+      ADD_MEM (fpregs[24], 8);
+      ADD_MEM (fpregs[25], 8);
       ADD_STRING ("   ST(7) ");
-      ADD_MEM (fpregs[28], 4);
+      ADD_MEM (fpregs[27], 4);
       ADD_STRING (" ");
-      ADD_MEM (fpregs[29], 8);
-      ADD_MEM (fpregs[30], 8);
+      ADD_MEM (fpregs[27], 8);
+      ADD_MEM (fpregs[28], 8);
 
       ADD_STRING ("\n mxcsr: ");
-      ADD_MEM (fpregs[31], 4);
+      ADD_MEM (fpregs[29], 4);
 
       ADD_STRING ("\n XMM0: ");
       ADD_MEM (xmmregs[0], 32);
diff --git a/sysdeps/unix/sysv/linux/x86_64/sys/user.h b/sysdeps/unix/sysv/linux/x86_64/sys/user.h
index bca10c7b3c..0575fe51bf 100644
--- a/sysdeps/unix/sysv/linux/x86_64/sys/user.h
+++ b/sysdeps/unix/sysv/linux/x86_64/sys/user.h
@@ -31,7 +31,7 @@ struct user_fpregs_struct
 {
   __uint16_t		cwd;
   __uint16_t		swd;
-  __uint16_t		twd;
+  __uint16_t		ftw;
   __uint16_t		fop;
   __uint64_t		rip;
   __uint64_t		rdp;