Initial revision

diff --git a/sysdeps/m68k/__longjmp.c b/sysdeps/m68k/__longjmp.c
new file mode 100644 (file)
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+++ b/sysdeps/m68k/__longjmp.c
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+/* Copyright (C) 1991 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <setjmp.h>
+#include <stdlib.h>
+
+/* Jump to the position specified by ENV, causing the
+   setjmp call there to return VAL, or 1 if VAL is 0.  */
+__NORETURN
+void
+DEFUN(__longjmp, (env, val), CONST jmp_buf env AND int val)
+{
+  /* This restores the FP and SP that setjmp's caller had,
+     and puts the return address into A0 and VAL into D0. */
+
+#if    defined(__HAVE_68881__) || defined(__HAVE_FPU__)
+  /* Restore the floating-point registers.  */
+  asm volatile("fmovem%.x %0, fp0-fp7" :
+              /* No outputs.  */ : "g" (env[0].__fpregs[0]) :
+              "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7");
+#endif
+
+  /* Put VAL in D0.  */
+  asm volatile("move%.l %0, d0" : /* No outputs.  */ :
+              "g" (val == 0 ? 1 : val) : "d0");
+
+  asm volatile(/* Restore the data and address registers.  */
+              "movem%.l %0, d1-d7/a0-a7\n"
+              /* Return to setjmp's caller.  */
+              "jmp a0@" :
+              /* No outputs.  */ : "g" (env[0].__dregs[0])
+              /* We don't bother with the clobbers,
+                 because this code always jumps out anyway.  */
+              );
+
+  /* This call avoids `volatile function does return' warnings.  */
+  abort ();
+}