From: Michael Snyder <msnyder@vmware.com>
Date: Wed, 2 Mar 2011 18:27:41 +0000 (+0000)
Subject: 2011-03-02  Michael Snyder  <msnyder@vmware.com>
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8c6a60d1e629e93d54e8a004ececd686f6241ade;p=binutils-gdb.git

2011-03-02  Michael Snyder  <msnyder@vmware.com>

	* linux-nat.c (linux_nat_xfer_partial): Preserve errno around
	a function call.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 257586bfb08..15c73adce91 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,8 @@
 2011-03-02  Michael Snyder  <msnyder@vmware.com>
 
+	* linux-nat.c (linux_nat_xfer_partial): Preserve errno around
+	a function call.
+
 	* record.c (record_restore): Move printf to before error return.
 
 2011-03-02  Yao Qi  <yao@codesourcery.com>
diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
index 54566450e59..922a2cf9524 100644
--- a/gdb/linux-nat.c
+++ b/gdb/linux-nat.c
@@ -4032,7 +4032,7 @@ linux_nat_xfer_partial (struct target_ops *ops, enum target_object object,
 static int
 linux_thread_alive (ptid_t ptid)
 {
-  int err;
+  int err, tmp_errno;
 
   gdb_assert (is_lwp (ptid));
 
@@ -4040,12 +4040,12 @@ linux_thread_alive (ptid_t ptid)
      running thread errors out claiming that the thread doesn't
      exist.  */
   err = kill_lwp (GET_LWP (ptid), 0);
-
+  tmp_errno = errno;
   if (debug_linux_nat)
     fprintf_unfiltered (gdb_stdlog,
 			"LLTA: KILL(SIG0) %s (%s)\n",
 			target_pid_to_str (ptid),
-			err ? safe_strerror (err) : "OK");
+			err ? safe_strerror (tmp_errno) : "OK");
 
   if (err != 0)
     return 0;