From: Mark Wielaard <mjw@redhat.com>
Date: Sun, 15 Jun 2014 09:35:50 +0000 (+0200)
Subject: tests/backtrace.c (frame_callback): Error on seeing more than 16 frames.
X-Git-Tag: elfutils-0.160~15
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=41362da47b7c570738c3fba55dae6fb42dd63b85;p=thirdparty%2Felfutils.git

tests/backtrace.c (frame_callback): Error on seeing more than 16 frames.

Don't fill up the test logs with obviously bogus frames.

Signed-off-by: Mark Wielaard <mjw@redhat.com>
---

diff --git a/tests/ChangeLog b/tests/ChangeLog
index 90a2a0eec..dce6ebe67 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,7 @@
+2014-06-15  Mark Wielaard  <mjw@redhat.com>
+
+	* backtrace.c (frame_callback): Error on seeing more than 16 frames.
+
 2014-06-13  Mark Wielaard  <mjw@redhat.com>
 
 	* backtrace.c (callback_verify): Accept "__libc_do_syscall" as first
diff --git a/tests/backtrace.c b/tests/backtrace.c
index 1d3948ebf..331ba0f2b 100644
--- a/tests/backtrace.c
+++ b/tests/backtrace.c
@@ -148,6 +148,13 @@ frame_callback (Dwfl_Frame *state, void *frame_arg)
   int *framenop = frame_arg;
   Dwarf_Addr pc;
   bool isactivation;
+
+  if (*framenop > 16)
+    {
+      error (0, 0, "Too many frames: %d\n", *framenop);
+      return DWARF_CB_ABORT;
+    }
+
   if (! dwfl_frame_pc (state, &pc, &isactivation))
     {
       error (0, 0, "%s", dwfl_errmsg (-1));