Move m68k from ports to libc

1 files changed, 70 insertions, 0 deletions

diff --git a/sysdeps/m68k/setjmp.c b/sysdeps/m68k/setjmp.c
new file mode 100644
index 0000000000..cf742eecd0
--- /dev/null
+++ b/sysdeps/m68k/setjmp.c
@@ -0,0 +1,70 @@
+/* Copyright (C) 1991-2014 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <setjmp.h>
+
+/* Save the current program position in ENV and return 0.  */
+int
+#if defined BSD_SETJMP
+# undef setjmp
+# define savemask 1
+setjmp (jmp_buf env)
+#elif defined BSD__SETJMP
+# undef _setjmp
+# define savemask 0
+_setjmp (jmp_buf env)
+#else
+__sigsetjmp (jmp_buf env, int savemask)
+#endif
+{
+  /* 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] = __builtin_return_address (0);
+
+  /* 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 = *(int **) __builtin_frame_address (0);
+
+  /* Save caller's SP, not our own.  */
+  env[0].__jmpbuf[0].__sp = (int *) __builtin_frame_address (0) + 2;
+
+#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]));
+#elif defined (__mcffpu__)
+  asm volatile ("fmovem %/fp0-%/fp7, %0"
+		: : "m" (env[0].__jmpbuf[0].__fpregs[0]));
+#endif
+
+#if defined NOT_IN_libc && defined IS_IN_rtld
+  /* In ld.so we never save the signal mask.  */
+  return 0;
+#else
+  /* Save the signal mask if requested.  */
+  return __sigjmp_save (env, savemask);
+#endif
+}
+#if !defined BSD_SETJMP && !defined BSD__SETJMP
+libc_hidden_def (__sigsetjmp)
+#endif