From 0456a08cb8977e7d3776c4590ff6dd2ce586064c Mon Sep 17 00:00:00 2001
From: "mostang.com!davidm" <mostang.com!davidm>
Date: Wed, 19 Mar 2003 19:25:18 +0000
Subject: [PATCH] Issue warning for platforms using ttrace() instead of
 ptrace() (HP-UX is the only platform that does that).

(Logical change 1.63)
---
 src/_UPT_access_fpreg.c |  8 ++++++++
 src/_UPT_access_mem.c   |  8 ++++++++
 src/_UPT_resume.c       | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 54 insertions(+)

diff --git a/src/_UPT_access_fpreg.c b/src/_UPT_access_fpreg.c
index d8729617..1ee14d6c 100644
--- a/src/_UPT_access_fpreg.c
+++ b/src/_UPT_access_fpreg.c
@@ -41,16 +41,24 @@ _UPT_access_fpreg (unw_addr_space_t as, unw_regnum_t reg, unw_fpreg_t *val,
   if (write)
     for (i = 0; i < (int) (sizeof (*val) / sizeof (wp[i])); ++i)
       {
+#ifdef HAVE_TTRACE
+#	warning No support for ttrace() yet.
+#else
 	ptrace (PTRACE_POKEUSER, pid, _UPT_reg_offset[reg] + i * sizeof(wp[i]),
 		wp[i]);
+#endif
 	if (errno)
 	  return -UNW_EBADREG;
       }
   else
     for (i = 0; i < (int) (sizeof (*val) / sizeof (wp[i])); ++i)
       {
+#ifdef HAVE_TTRACE
+#	warning No support for ttrace() yet.
+#else
 	wp[i] = ptrace (PTRACE_PEEKUSER, pid,
 			_UPT_reg_offset[reg] + i * sizeof(wp[i]), 0);
+#endif
 	if (errno)
 	  return -UNW_EBADREG;
       }
diff --git a/src/_UPT_access_mem.c b/src/_UPT_access_mem.c
index 26c9c6bb..e2bdec15 100644
--- a/src/_UPT_access_mem.c
+++ b/src/_UPT_access_mem.c
@@ -36,15 +36,23 @@ _UPT_access_mem (unw_addr_space_t as, unw_word_t addr, unw_word_t *val,
   if (write)
     {
       debug (100, "%s: mem[%lx] <- %lx\n", __FUNCTION__, addr, *val);
+#ifdef HAVE_TTRACE
+#	warning No support for ttrace() yet.
+#else
       ptrace (PTRACE_POKEDATA, pid, addr, *val);
       if (errno)
 	return -UNW_EINVAL;
+#endif
     }
   else
     {
+#ifdef HAVE_TTRACE
+#	warning No support for ttrace() yet.
+#else
       *val = ptrace (PTRACE_PEEKDATA, pid, addr, 0);
       if (errno)
 	return -UNW_EINVAL;
+#endif
       debug (100, "%s: mem[%lx] -> %lx\n", __FUNCTION__, addr, *val);
     }
   return 0;
diff --git a/src/_UPT_resume.c b/src/_UPT_resume.c
index e69de29b..11242e8d 100644
--- a/src/_UPT_resume.c
+++ b/src/_UPT_resume.c
@@ -0,0 +1,38 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 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 "_UPT_internal.h"
+
+int
+_UPT_resume (unw_addr_space_t as, unw_cursor_t *c, void *arg)
+{
+  struct UPT_info *ui = arg;
+
+#ifdef HAVE_TTRACE
+# warning No support for ttrace() yet.
+#else
+  return ptrace (PTRACE_CONT, ui->pid, 0, 0);
+#endif
+}