From: Maciej W. Rozycki <macro@codesourcery.com>
Date: Thu, 24 Oct 2013 19:37:49 +0000 (+0100)
Subject: Avoid producing broken non-native core files
X-Git-Tag: hjl/linux/release/2.24.51.0.1~130
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bbe769cc07aa1b1b0f4ede05c189a2d9897603bb;p=external%2Fbinutils.git

Avoid producing broken non-native core files

	gdb/
	* linux-tdep.c (linux_corefile_thread_callback): Propagate any
	failure from register information collection.

	gdb/testsuite/
	* lib/gdb.exp (gdb_gcore_cmd): Also handle a "Target does not
	support core file generation" reply.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6466028..b0b6ff8 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
 2013-10-24  Maciej W. Rozycki  <macro@codesourcery.com>
 
+	* linux-tdep.c (linux_corefile_thread_callback): Propagate any
+	failure from register information collection.
+
+2013-10-24  Maciej W. Rozycki  <macro@codesourcery.com>
+
 	* linux-tdep.c (linux_corefile_thread_data): Remove `num_notes'
 	member.
 	(linux_corefile_thread_callback): Update accordingly.
diff --git a/gdb/linux-tdep.c b/gdb/linux-tdep.c
index 5bca076..304fe09 100644
--- a/gdb/linux-tdep.c
+++ b/gdb/linux-tdep.c
@@ -1209,14 +1209,15 @@ linux_corefile_thread_callback (struct thread_info *info, void *data)
 				       args->note_data, args->note_size,
 				       args->stop_signal);
 
-      if (siginfo_data != NULL)
-	{
+      /* Don't return anything if we got no register information above,
+         such a core file is useless.  */
+      if (args->note_data != NULL)
+	if (siginfo_data != NULL)
 	  args->note_data = elfcore_write_note (args->obfd,
 						args->note_data,
 						args->note_size,
 						"CORE", NT_SIGINFO,
 						siginfo_data, siginfo_size);
-	}
 
       do_cleanups (old_chain);
     }
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 1edfc93..003208d 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2013-10-24  Maciej W. Rozycki  <macro@codesourcery.com>
+
+	* lib/gdb.exp (gdb_gcore_cmd): Also handle a "Target does not
+	support core file generation" reply.
+
 2013-10-21  Jose E. Marchesi  <jose.marchesi@oracle.com>
 
 	PR gdb/15986
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index bde4e48..e4a6134 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -3183,7 +3183,7 @@ proc gdb_gcore_cmd {core test} {
 	    verbose -log "'gcore' command undefined in gdb_gcore_cmd"
 	}
 
-	-re "Can't create a corefile\[\r\n\]+$gdb_prompt $" {
+	-re "(?:Can't create a corefile|Target does not support core file generation\\.)\[\r\n\]+$gdb_prompt $" {
 	    unsupported $test
 	}
     }