initial import

1 files changed, 48 insertions, 0 deletions

diff --git a/sysdeps/m68k/setjmp.c b/sysdeps/m68k/setjmp.c
new file mode 100644
index 0000000000..853977eab9
--- /dev/null
+++ b/sysdeps/m68k/setjmp.c
@@ -0,0 +1,48 @@
+/* Copyright (C) 1991, 1992, 1994 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 <setjmp.h>
+
+/* Save the current program position in ENV and return 0.  */
+int
+__sigsetjmp (jmp_buf env, int savemask)
+{
+  /* Save data registers D1 through D7.  */
+  asm volatile ("movem%.l d1-d7, %0" : : "m" (env[0].__jmpbuf[0].__dregs[0]));
+
+  /* Save return address in place of register A0.  */
+  env[0].__jmpbuf[0].__aregs[0] = ((void **) &env)[-1];
+
+  /* Save address registers A1 through A5.  */
+  asm volatile ("movem%.l a1-a5, %0" : : "m" (env[0].__jmpbuf[0].__aregs[1]));
+
+  /* Save caller's FP, not our own.  */
+  env[0].__jmpbuf[0].__fp = ((void **) &env)[-2];
+
+  /* Save caller's SP, not our own.  */
+  env[0].__jmpbuf[0].__sp = (void *) &env;
+
+#if	defined(__HAVE_68881__) || defined(__HAVE_FPU__)
+  /* Save floating-point (68881) registers FP0 through FP7.  */
+  asm volatile ("fmovem%.x fp0-fp7, %0"
+		: : "m" (env[0].__jmpbuf[0].__fpregs[0]));
+#endif
+
+  /* Save the signal mask if requested.  */
+  return __sigjmp_save (env, savemask);
+}