Wed Feb 22 00:44:41 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>

	* sysdeps/mach/hurd/i386/sigreturn.c: Restore the FPU state.

	* stdlib/random.c (__srandom): Change algorithm used to populate
 	the state array.
	(randtbl): Recomputed with new algorithm.

3 files changed, 31 insertions, 7 deletions

diff --git a/sysdeps/generic/signame.c b/sysdeps/generic/signame.c
index 5f8deab3ad..40e72e0e4c 100644
--- a/sysdeps/generic/signame.c
+++ b/sysdeps/generic/signame.c
@@ -1,5 +1,5 @@
 /* Convert between signal names and numbers.
-   Copyright (C) 1990, 1992, 1993 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1992, 1993, 1995 Free Software Foundation, Inc.
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -273,3 +273,20 @@ psignal (signal, message)
     fprintf (stderr, "%s: %s\n", message, sys_siglist[signal]);
 }
 #endif
+
+#ifndef HAVE_STRSIGNAL
+/* Return the string associated with the signal number.  */
+
+char *
+strsignal (signal)
+     int signal;
+{
+  static char buf[] = "Signal 12345678901234567890";
+ 
+  if (signal > 0 || signal < NSIG)
+    return sys_siglist[signal];
+ 
+  sprintf (buf, "Signal %d", signal);
+  return buf;
+}
+#endif
diff --git a/sysdeps/generic/signame.h b/sysdeps/generic/signame.h
index 2bd1637cfc..3ff6d9a303 100644
--- a/sysdeps/generic/signame.h
+++ b/sysdeps/generic/signame.h
@@ -1,5 +1,5 @@
 /* Convert between signal names and numbers.
-   Copyright (C) 1990, 1992, 1993 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1992, 1993, 1995 Free Software Foundation, Inc.
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -29,7 +29,7 @@ char *sig_abbrev (int number);
    signal by that name.  */
 int sig_number (const char *abbrev);
 
-/* Avoid conflicts with a system header file that might define these two.  */
+/* Avoid conflicts with a system header file that might define these three.  */
 
 #ifndef HAVE_PSIGNAL
 /* Print to standard error the name of SIGNAL, preceded by MESSAGE and
@@ -37,6 +37,11 @@ int sig_number (const char *abbrev);
 void psignal (int signal, const char *message);
 #endif
 
+#ifndef HAVE_STRSIGNAL
+/* Return the name of SIGNAL.  */
+char *strsignal (int signal);
+#endif
+
 #if !defined (HAVE_SYS_SIGLIST)
 /* Names for signals from 0 to NSIG-1.  */
 extern const char *sys_siglist[];
@@ -50,6 +55,9 @@ int sig_number ();
 #if !defined (HAVE_SYS_SIGLIST) && !defined (HAVE_PSIGNAL)
 void psignal ();
 #endif
+#ifndef HAVE_STRSIGNAL
+char *strsignal (int signal);
+#endif
 #if !defined (HAVE_SYS_SIGLIST)
 extern char *sys_siglist[];
 #endif
diff --git a/sysdeps/mach/hurd/i386/sigreturn.c b/sysdeps/mach/hurd/i386/sigreturn.c
index df8960669f..19ba1d472c 100644
--- a/sysdeps/mach/hurd/i386/sigreturn.c
+++ b/sysdeps/mach/hurd/i386/sigreturn.c
@@ -80,10 +80,9 @@ __sigreturn (struct sigcontext *scp)
   *reply_port = scp->sc_reply_port;
 
   if (scp->sc_fpused)
-    {
-  /* XXX should restore FPU state here XXX roland needs 387 manual */
-  /*    abort (); */
-    }
+    /* Restore the FPU state.  Mach conveniently stores the state
+       in the format the i387 `frstor' instruction uses to restore it.  */
+    asm volatile ("frstor %0" : : "m" (scp->sc_fpsave));
 
   {
     /* There are convenient instructions to pop state off the stack, so we