Rename: src/ia64/Ginit_local-ia64.c -> src/ia64/Ginit_local.c

(Logical change 1.241)

src/ia64/Ginit_local.c

@@ -0,0 +1,85 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2001-2003 Hewlett-Packard Co
+	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "init.h"
+#include "unwind_i.h"
+
+#ifdef UNW_REMOTE_ONLY
+
+PROTECTED int
+unw_init_local (unw_cursor_t *cursor, unw_context_t *uc)
+{
+  return -UNW_EINVAL;
+}
+
+#else /* !UNW_REMOTE_ONLY */
+
+PROTECTED int
+unw_init_local (unw_cursor_t *cursor, unw_context_t *uc)
+{
+  struct cursor *c = (struct cursor *) cursor;
+  unw_word_t sol;
+
+  if (tdep_needs_initialization)
+    tdep_init ();
+
+  Debug (2, "(cursor=%p)\n", c);
+
+#ifdef __hpux
+  {
+    int ret;
+
+    c->as = unw_local_addr_space;
+    c->as_arg = uc;
+    if ((ret = common_init (c)) < 0)
+      return ret;
+
+    /* On HP-UX, the context created by getcontext() points to the
+       getcontext() system call stub.  Step over it: */
+    return unw_step (cursor);
+  }
+#else
+  /* The bsp value stored by getcontext() points to the *end* of the
+     register frame of the initial function.  We correct for this by
+     storing the adjusted value in sc_rbs_base, which isn't used by
+     getcontext()/setcontext().  We can be certain that the entire
+     frame is stored in a contiguous rbs-area because the frame didn't
+     become part of the dirty partition until getcontext() was called
+     and we know that getcontext() doesn't switch the register-backing
+     store.  */
+  sol = (uc->uc_mcontext.sc_ar_pfs >> 7) & 0x7f;
+  uc->uc_mcontext.sc_rbs_base = ia64_rse_skip_regs (uc->uc_mcontext.sc_ar_bsp,
+						    -sol);
+#endif
+
+  c->as = unw_local_addr_space;
+  c->as_arg = uc;
+  return common_init (c);
+}
+
+#endif /* !UNW_REMOTE_ONLY */