1 files changed, 49 insertions, 0 deletions
diff --git a/libc/sysdeps/mach/hurd/alpha/longjmp-ts.c b/libc/sysdeps/mach/hurd/alpha/longjmp-ts.c
new file mode 100644
index 000000000..f472dbcb3
--- /dev/null
+++ b/libc/sysdeps/mach/hurd/alpha/longjmp-ts.c
@@ -0,0 +1,49 @@
+/* Perform a `longjmp' on a Mach thread_state.  Alpha version.
+   Copyright (C) 2002, 2006 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.  */
+
+#include <hurd/signal.h>
+#include <setjmp.h>
+#include <jmpbuf-offsets.h>
+#include <mach/thread_status.h>
+
+
+/* Set up STATE to do the equivalent of `longjmp (ENV, VAL);'.  */
+
+void
+_hurd_longjmp_thread_state (void *state, jmp_buf env, int val)
+{
+  struct alpha_thread_state *const ts = state;
+
+  ts->r9 = env[0].__jmpbuf[JB_S0];
+  ts->r10 = env[0].__jmpbuf[JB_S1];
+  ts->r11 = env[0].__jmpbuf[JB_S2];
+  ts->r12 = env[0].__jmpbuf[JB_S3];
+  ts->r13 = env[0].__jmpbuf[JB_S4];
+  ts->r13 = env[0].__jmpbuf[JB_S5];
+  ts->pc = env[0].__jmpbuf[JB_PC];
+  ts->r15 = env[0].__jmpbuf[JB_FP];
+  ts->r30 = env[0].__jmpbuf[JB_SP];
+  ts->r0 = val ?: 1;
+
+  /* XXX
+     To mimic longjmp we ought to restore some fp registers too.
+     But those registers are in struct alpha_float_state.
+     The only use of this is in fork, and it probably won't matter.
+  */
+}